We make what you make run smoother. - Airpot

AIR

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We make what you makerun smoother.

Dashpots • Actuators • Shock Absorbers

1

It sounds much simpler than it is.

The Airpot Dashpot is a motion damping devicethat reduces velocity, vibration, and oscillation in dynamic mechanisms.

This is accomplished by using a piston to force ambient air through an orifice at a controlled rate to dissipate kinetic energy.

The benefits are worth noting:

• It prevents damage and violent or inaccurate response caused by shock and vibration in sensitive equipment and components.

• It reduces impact noise and wear.

• It provides simple, low cost, adjustablespeed control without external power.

• It provides non-electrical timing capability.

What type of applications benefit most from these special capabilities?

Any kind where these conditions are present:

• Where smooth, near friction-free motion is critical.

• Where responsiveness to low forces/low kinetic energy levels is required.

• Where equipment is sensitive and precise.

• Where clean operation is important.

• Where cycle rates are high or life span needsto be long.

• Where reliability is critical.

• Where temperatures are extreme or environments are humid.

• Where high quality is a product feature.

• Where non-electrical motion control is advantageous.

12 ways an Airpot differs from other damping devices

1. It has unparalleled low friction,responds to forces as low as only a few grams, and it’s smooth.

2. Starting and running friction are almost identical, which prevents jerky, uncontrolled starts.

3. It has a life-span of multi-millions of cycles. It outlasts most any machinein which it is used.

4. No seals are required, and there areno liquids to leak.

5. There is no limit to its cycle rate. It does not heat up or change viscosity under conditions of rapidand/or continuous cycling.

6. It’s made of self-lubricating materials.

7. It’s precise and accurate, easilyadjustable over a 10,000 to one range, and it allows fine adjustments at installation.

8. It’s unaffected by extreme temperaturevariations and high G-loads.

9. The piston and cylinder will not rust, corrode, or deteriorate over time –even with little or no use over extendedintervals.

10. It damps bi-directionally and uni-directionally.

11. It’s lightweight.

12. It’s easily customized to suit space availability and the majority of special performance requirements.

The Airpot Dashpot defined.

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reset the piston for the next cycle (see shock absorberillustration).

Two Way Damping (Unit damps in both directions.)The ball joint rod connection contains no check valve andtherefore does not allow air flow through the piston. Thisresults in approximately equal resistance to motion (damp-ing) in both directions. Two way damping is generally not

appropriate for the shock absorber con-figuration.

Dampingrate controlTwo methods are available to controlthe amount of damping:

Adjustable orifice All models comestandard with an anti-vibration needlevalve built into the dashpot mountingend for damping adjustment.

The design allows for screw driver,wrench, or finger adjustment of theadjustment screw. The blunt needlevalve provides capability for a verywide range of continuous adjustment.

Adjustable models are the mostcommonly used because they allow agreat deal of flexibility in controllingforces or energy levels that can only beapproximately known, that may varyfrom machine to machine, or that maychange over time due to machine wearor load variations. Their fine-tuningability also accommodates any inherentdamping variations from unit to unit.

Fixed orifice In some applications, itmay be possible to use a non-adjustable model. The advan-tages are lower cost and a tamper proof damping setting.

These models contain no orifice in the cylinder bottom. Instead, damping rates are achieved by factoryselection of an appropriate piston/cylinder diametral clearance or by factory scribing of the piston to produce a precise leak.

Each method provides the leak required to yield a pre-determined damping rate. Please see further discussion under the “Orifice” heading in the “Selectionguidelines” section.

How they workAll Airpot damping devices are dashpots generically, butfor ease of discussion, we identify configurations in whichthe piston rod is attached to the load being damped as dashpots.

We identify configurations in which the piston rod isstruck by — but not attached to the load — as shockabsorbers or snubbers. Either term is acceptable.

The materials we useWhether it’s a dashpot or a shockabsorber, the materials we use are chosen for inherent lubricity, highstrength-to-weight ratio, excellent sta-bility under temperature and humidityextremes, close coefficients of thermalexpansion, and non-deteriorating performance due to age or non-use.The component parts:

• Graphitized carbon piston, precision ground to millionths ofan inch TIR

• Annealed, borosilicate glass cylin-der. Precision fire-polished bore.

Damping directioncontrolOne Way Damping (push or pull) In dashpot configurations, the piston is attached to the connecting rod by a low friction ball joint or pin link.Depending on the dashpot model, theball joint will house an internal ballcheck valve or it will be riveted to aflexible flap valve which is externallymounted on the piston face. Any forceapplied to the connecting rod whichcan move the piston will cause air to flow through the pis-ton’s ball check or flap valve with no appreciablerestriction (no damping) in one direction and will causethe valve to close in the opposite (desired damping) direc-tion. Damping in the compression direction is referred toas push damping. Damping in the extension direction isreferred to as pull damping (see dashpot illustration).

In the shock absorber configuration, the flexible flapvalve is used, and damping is only available in the pushdirection. Since the push rod is not connected to the load,a low force return spring is provided in the cylinder to

Mounting Stud(Airpot bottom)Infinitely AdjustableOrificePrecision BoreUltra Low FrictionCylinder

Selectively MatchedGraphite CarbonPistonBall Joint

Connecting Rod

Vent Path

Mounting Stud(Airpot bottom)Infinitely AdjustableOrifice

Precision BoreUltra Low FrictionCylinder

Selectively MatchedGraphite CarbonPiston

Push Rod

Vent Path

Airpot Corporation (800) 848-7681 fax: (203) 849-0539 e-mail: [email protected] www.airpot.com

Dashpot

Shock Absorber(snubber)

A few words about basicdesign and operating principles

3

Velocity Control of Solenoids

It is often desirable to slow a solenoiddown to avoid a crash or high impacton closure. The Airpot tunes the solenoid to obtain the fastest motionpossible without noisy impact or damage to components.

In electronics assembly equipment(as shown above) a pull dampingAirpot controls a solenoid which posi-tions the grippers. The Airpotsignificantly reduces gripper impact.

In automatic diagnostic equipmentit controls the travel of solenoid actuated dispensers and positioners as samples move from one station to another.

In silicon wafer transport mech-anisms it prevents bounce andovershoot as solenoids lift wafers into position.

Velocity Control of Spring Loaded Mechanism

Springs provide motive force to amass at the expense of continuouslyincreasing velocity. Airpot damping

Vibration Damping

Dashpot damping is one of the simplest ways of eliminating vibration.The Airpot dashpot excels in provid-ing a high ratio of damping-to-frictionforce.

In magnetic tape duplicators (asshown above), a two-way dampingAirpot significantly reduces idler armvibration caused by stiction or take-updrive pulsation. The idler can stillmove freely to accommodate changesin the loop profile. Using an Airpotalso improves the response duringstart-up acceleration.

In high speed fiber optic filament,wire, and textile winders, an Airpotis ideal where oscillation of tensionidlers can cause broken filaments.

Oscillating Valve Damping

Poppet and check valves can naturallyresonate, causing unwanted noise,pressure/flow fluctuations, or wear.These problems can be eliminated by precise damping.

In pneumatic valves (as shown above),an Airpot reduces the amplitude ofoscillation without affecting the cracking pressure or positioning of thepoppet. With Airpot’s low mass, virtu-ally frictionless motion, and minimalair spring at low forces, the steady-state positioning of the poppet isessentially unaffected by the dashpot.

In a vacuum regulator it improvesregulation and eliminates noise causedby the oscillating poppet striking thevalve seat.

In a patient ventilator it damps thecheck valve to eliminate downstreampressure fluctuations.

develops an opposing force to limitthis velocity to a desired value.

In laser equipment (as shown belowleft), a push damp Airpot controls amirror as it swings into position. TheAirpot damping increases as the mir-ror approaches a stop, allowing rapid positive positioning without loudnoise or impact damage.

In automatic mailing and addressingequipment it regulates the positioningmechanisms and feed roller pressure.

In spring loaded doors, x-y slides,and tape cartridge carriers it prevents damage on release.

Pull DampAirpot

Gripper

Gripper

Pivot

PC Board

Return SpringPivot

Solenoid

Push DampAirpot

Mirror

Stop

Solenoid Return Spring

Tape

Pivot

Spring

2-WayAirpot

IdlerPulley

Spring

Valve Seat

Seal2-wayAirpot

Limiting Overaction

Many instruments are susceptible torandom pulses and surges, which canlead to harmful, over-range conditions.

Typical examples of application

RotaryPositionSensor

2-WayAirpot

Pendulum

g

Output Signal

Sensor

4

Pneumatic Actuation –Pressure or Vacuum

Using a threaded port in place of theadjustable oriface, the Airpot is capable of acting as a pneumatic actuator,

The Airpot is velocity sensitive andresists these surges, providing moreconsistent operating conditions andpreventing damage.

In sensitive, tilt-sensing instruments(as shown below left), a two-waydamping Airpot prevents the pendu-lum from reacting violently to suddenchanges, stabilizing the pendulum butallowing it to move smoothly withangular change.

In sensitive scales, Airpot protectsagainst loading shock without interfer-ing with measurement.

In magnetic tape handling equip-ment, dubbers, motion pictureprojectors, and film duplicatorsAirpot provides protection wherehigh speed stop and start can lead toovershoot, fouling, and backlash.

Creating Time Delay

Airpot offers reliable timing control for non-electrical systems and for electrical systems requiring non-electrical backup.

In a commercial sprinkler systema pull damping Airpot times a switch(as shown above) which actuates asolenoid valve in response to ambientconditions. The time delay preventsshort term, non-threatening signalsfrom actuating the sprinklers, whileallowing actuation if the signal persistsbeyond the desired time.

In refrigerator ice dispensers anAirpot slows closure of the springloaded ice chute doors.

In beverage vending machines itcontrols descent of filling compart-ment access doors.

Cushioning Impact

When controlled deceleration isrequired at the end of the stroke of yourmechanism, the Airpot snubber config-uration is particularly useful. Itperforms push damping only and thepush rod is not connected to the work.

In office copiers (as above), an Airpotsnubber damps the lens carriage at theend of its return stroke. Because of thiscontrolled deceleration, impact noiseand bounce are prevented, permittingfaster machine operation. The Airpotreturn spring quickly resets the pistonfor the next cycle.

In semi-conductor wafer transportmechanisms, it dampens firm posi-tioning against hard stops.

providing smooth precise positioning.

In high speed filament winders (asshown below left), Airpot actuators are partof a force control system to maintain properfilament tension. The ultra-low frictionAirpots provide precise, hysteresis-free forcecontrol in response to small pressure orvacuum changes directed by the controller.

In automatic assembly and semi-conductor equipment, it smoothly dispenses and positions parts.

SprinklerSystem

LinePressure

Sensor

Pull DampAirpot

Linkage to ExternalPressure Sensor

Electric Switch(output signal to alarm

and solenoid valve)

Pulley

Fiber

AirpotActuator

Dancer Arm

PressureRegulator

VentOut In Air

Supply


AirpotSnubber

Table Guide

Stop

Typical examples of applicationcontinued

Designing Your OwnPumping, PressureSensing, and FlowMeasurement Devices

Innovative customers have taken advan-tage of the special properties provided bythe Airpot piston and cylinder combina-tion to produce pumping and pressurehandling devices of their own design.

For example, fitted with a hose barb,the Airpot cylinder/piston assembly canbe connected to a motor or solenoid (asshown above) and used to pump air. Itslow friction and inherent lubricity reducepower requirements and concerns aboutcontamination from lubricants.

Used as a pressure sensor or flow indicator, the Airpot’s inherently low friction allows response to extremely low pressures and small pressure changes. The piston can provide a mechanical output, and the glass cylinder allows visi-ble indication of piston position changes.Piston/cylinder sets can be purchased forthese purposes and Airpot applicationengineers are available to assist customerswho have these special needs.

Solenoid(push type)

Airpot(used as a pump)

CheckValve

Air is exhausted duringthe compression stroke

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Proper model selection is basedon the following criteria:

Force The primary considera-tion for dashpot configurations andall applications involving vibration,time delay, and velocity control.

Limits based on damping direction.Force always relates to the net loadwhich is pushing or pulling on thedashpot. Typically, force will dictatethe unit’s size when the Airpot is usedin the dashpot configuration.

At rest, the dashpot is a passivedevice and has no force output. Inmotion, the dashpot offers a resistingforce which rises to equal the force of

5.00

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Air spring distance is least, and force rise is fastest when the piston starts moving from a position as close to the bottom (closed end) ofthe cylinder as possible, without actually bottoming out, regardless of the direction of damping.

PUSH DAMPING PULL DAMPING

Selection guidelines

the input load, achieving a zero netforce. This results in zero accelerationand constant velocity.

Force limits of Airpot dashpots aredetermined by the direction of damp-ing and the diameter of the piston.

In pull damping units, a vacuumis being created in the dashpot as thepiston moves outward. Thus, themaximum resisting force limit of theunit is a direct function of atmos-pheric pressure and the area of thepiston (F=PA).

Assuming an equal ambientpressure, larger diameter units willhave force limits higher than smallerdiameter units; the limits beingdirectly proportional to their piston

areas. (Model force limits are summa-rized in the specifications section.)

In the push damping (compres-sion) direction, air must be compres-sed into an ever decreasing space; the force can rise to a level which ishigher than is possible in the pulldamping direction. Therefore, it ispossible for a smaller diameter pushdamping unit to achieve greaterresisting forces than a larger diameterpull damping unit. However, strokelost to compression should be takeninto consideration.

Rate of force rise – air springcharacteristic. Damping directionand starting position of the piston

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to be used in the shockabsorber (snubber) configuration.

Maximum energyhandling capability is sim-ply a function of thevolume of air that is forcedout of the dashpot on eachcycle. Equal volumes ofexpelled air will handleequal amounts of energy.Therefore, small diameterswith long strokes canequal the energy capabilityof larger diameters withshort strokes. The onlydifference is the rate atwhich the energy is dissi-pated relative to eachincrement of stroke. (Seegraph above right.)

Damping Coefficient

Use for time delay applications. Damping coefficient is almost alwaysthe primary determinant for applica-tions where a specific time delay isrequired.

This is because the coefficient expresses time as it relates to strokeand force:

RequiredForce x TimeDamping =

Coefficient Distance

Force equals the input to the dashpot,Time is the time delay desired of thedashpot, and Distance is the strokeused by the dashpot.

In the English system of units, thedamping coefficient is expressed as:

lbs • sin

Often, it is written as:lbsin/s

We typically express this as “poundsper inch per second”.


444

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Stroke (In.)

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Selection guidelinescontinued

Mod

els

This ratio expresses the dashpot’sresistance to motion, given the rate ofair leak inherent in the dashpot. Witha closed orifice, the dashpot’s leakbecomes a function of clearancearound the piston.

Damping ratings for each modelare shown in the performance specifi-cation section. The ratings representguaranteed minimums with a closedorifice. It is common for most unitsto have damping capabilities inexcess of the ratings.

It is important to understand thatthe damping coefficient is a ratio, andthe rating of any dashpot does notimply an absolute amount of forcewhich the dashpot is capable ofresisting.

For example, a rating of 50lbs/in/sec does not mean that thedashpot can resist a 50 lb load. Itonly means that a one pound loadwould take 50 seconds to travel oneinch, and a 5 pound load would take

combine to affect the rate of force rise.In an air dashpot, at the beginning

of the stroke, the piston will quicklytravel a finite distance with relativelylittle resistance. We refer to this as “airspring.” This occurs until the pressurebuilds or drops (depending on damp-ing direction) to the point where theexchange of air between the dashpotand the ambient environment is justenough for cylinder pressure to reachand maintain an equilibrium value.(See graphs at left.)

The result of air spring is that it provides a gradual ramping up ofdamping. Therefore, for practical pur-poses, the effective damping distanceis not the entire stroke length.

Effective damping distance equalsthe total available dashpot strokeminus the stroke lost to air spring.

The stroke lost to the air springeffect can be approximated byBoyle’s Law : P1 V1=P2V2. Consider thelost stroke to be the distancerequired to build to a force in thedashpot which is approximatelyequal to the applied force.

Air spring does not normallyappreciably affect response unlessstrokes are very short relative to thedistance between the piston andAirpot bottom, or forces are very highfor the dashpot diameter selected.

In some cases, particularly forsolenoid damping, air spring may actu-ally be helpful since it can allow rapidmotion at the beginning of travel andbring the load into a gentle cushion ofair at the end of the stroke. Moreover,after motion has stopped, any forceremaining in the air spring willquickly bleed off to zero.

EnergyThe main consideration for shockabsorber configurations.Kinetic energy dictates the sizerequirement when the Airpot unit is

7

10 seconds, and so forth. All compu-tations must be scaled to accommodatethe maximum force and stroke limita-tions of the dashpot model selected.

When calculating the requireddamping coefficient, it is important toconsider the air spring characteristicsof the model selected. It is helpful toreview the Air Spring explanation(pg. 5) and use the effective dampingdistance in the coefficient formula,and not the total available stroke.Please contact Airpot’s engineeringdepartment if you’d like assistance.

Damping Direction

The choice of damping directiondepends on several variables:

1. Force or energy to be appliedto the Airpot unit – Select amodel whose diameter can provide the required force in the desired direction of damping.If this is a shock absorptionapplication, determine the stroke/diameter combination that willprovide the required energy capability.

2. Space available for mountingthe Airpot unit – Space mustaccommodate the diameter and stroke required to achieve desired Airpot damping

performance in the dampingdirection selected.

3. Rate of force rise in the Airpotdamping unit – Can the applica-tion tolerate some gradual forcebuildup (as in the compressiondirection), or must the resistingforce be immediate (as in the pulldirection)?

4. Partial stroke damping – If damp-ing is desired only at the beginningof the stroke, a pull damping unitwith a port in the side of the cylin-der will provide damping until thepiston passes the port.

If damping is needed onlynear the end of the stroke and thestroke is long, a push dampingdashpot with a port in the side ofthe cylinder will provide dampingonly after the piston passes the port.

If the stroke is long butdamping is required only nearthe end, a shock absorber (snub-ber) configuration might be moresuitable than the dashpot, since itdoes not have to be connectedthroughout the entire stroke of themechanism being damped.

Orifice– adjustable or non-adjustableNon-adjustable units are more

economical and less vulnerable to tampering than adjustable units.However, for a non-adjustable unit to be used, the application must beable to tolerate a range of dampingvariation from unit to unit. The degree of variation experienced willdepend on the specific damping val-ues required by the application andthe diameter of the Airpot unitselected.

To evaluate the possibility of using a fixed orifice unit, the damp-ing variation range acceptable in theapplication must first be determinedempirically in functional tests. Theprocess is simple.

Design engineers interested inexploring the possibility of using non-adjustable units should contactan Airpot application engineer forassistance.

Dashpot Rodselection

Strength considerations. Airpotoffers several choices of connectingrods for most models. Usually, theprimary selection criterion will be strength required for the application.

If the dashpot must providedamping in the push direction, therod will experience compressiveforces and its buckling strength will

Snubbing paper carrier in an office copier. Tension arm damping in a professional video recorder.


8

Rod End selectionMounting configurations. Choosingthe right rod end can greatly facilitatemounting as well as avoid friction andwear in the mechanism being damped.Standard choices are: plain end, loopor rod eye (depending on rod diame-ter), threaded ball joint, and threadedplain end.

Ball joints are the most forgiving ofoff-axis alignments, allowing angularmotion up to 30 degrees, (+/-15) and360 degrees of rotation about the rod’slongitudinal axis. All dashpots come stan-


Two ball and socket joints compensate for parallel misalignment

Two ball and socket joints compensate for angular misalignment

Ball joint or pin joint used with loop or rod eye allows for rigid mounting of the cylinder and rod attached to a hinged assembly without binding

Hinge

Slide

Slide


be a function of its diameter andlength. Check the rod bucklingcurves (below) to determine the best size rod, considering the forcesand length being used in theapplication.

If the dashpot is damping in thepull direction, the rod’s yieldstrength is the main consideration.All Airpot connecting rods are capa-ble of withstanding any load appliedin the tensile direction which doesnot exceed the force of atmospheric pressure on the piston.

dard with rod end ball or pin link joints. Loops and rod eyes are useful for

attachment with pins or shoulderscrews and allow for rotationalmotion of the connected piece. Whenusing either of these methods, someside motion should be afforded.

Plain ends and threaded plainends are the least forgiving of mis-alignment unless there is somefreedom of X and Z axis movement inthe piece to which they are beingattached (assuming piston travel isconsidered to be in the Y axis).

9

The success of every Airpot application depends on more thanthe reliability of our components. Itis equally important to choose thebest device and configuration foryour needs, and implement it properly.

We recognize that the kinds ofmotion problems our engineers workwith every day may be experiencedonly occasionally by any other engi-neer. Therefore, our expertise andbackground of thousands of applica-tions will help ensure that you savetime and energy in meeting yourmotion control requirements, even ifit means directing you to productsmade by another manufacturer.

To insure that you receive the most value and satisfaction from

Airpot products, we are always eager to provide skilled, cooperative application engineering. From themoment you contact us to explorepossibilities, to the production of all your machines in which Airpotcomponents are used, an Airpot engineer will be assigned to yourapplication. Every step of the way,the goal will be to enhance the performance of your product, while helping to make your designresponsibilities easier, faster, and less expensive to accomplish.

But expert technical assistance isonly the beginning of our service.The foundation of our service policyis to keep our promises to our clients.And this begins with delivering thepromised level of quality, at the

promised time. If circumstancesbeyond our control should interferewith our pledge, we will take everypossible measure to alleviate anyinconvenience to our clients. Thisincludes informing our clients aboutany impending disruptive situation— ahead of time.

It is also our policy to do every-thing we can to assist with yourordering needs.

This includes JIT and ship-tothe-line deliveries, liberal orderrescheduling and cancellation policies, credit card purchases andRAPID response to all inquiries,requests, and emergency situations.

At Airpot, we are committed tomaking applications of our productswork to their fullest potential.

Properly selected and applied Airpotproducts are among the most reliableand consistently high qualitymechanical components that you willever use. Every Airpot unit must passa host of in-process checks, includingfunctional tests to insure that eachone meets the high standards that wepromise.

We are so confident with ourquality that we back up our promisewith a solid warranty. For one fullyear following the date of manufac-ture, we will provide replacementunits for any properly used Airpotfound to be defective or that failed tomeet published or otherwise agreedupon specifications.

Dependable service

Quality and warranty

SPECIFIC

ATIO

NS A

ND

OR

DER

ING


Please specify to .125 inchfor custom models if possible.

Please consult factory if longerstrokes are required.

Requires Rod Type N.

CONFIGURATION OPTIONS FOR DASHPOT MODELS 2KS56 AND 2K56

12.1 APC-01G

Please see the model specification sheet to define the specific model you require.

This section contains the specifications and data you need to select the appropriate Airpot model for your application.

How To Use This SectionSee Airpot Performance Specifications on the back of this tab to identify a basic model that meets your performance requirements.

Note the Ordering Guidelines shown on the lower section. They will help you decide between an off-the-shelf(stock) model or a custom unit.

Go to the tabbed product section and find the divider forthat model and review the data sheet . The data sheetcontains the dimensional details and additional performanceand mounting information.

Choose the configuration options you need from thoseshown on the data sheet and detailed in the chart on theback of the divider . The part description will becomeobvious. For example: 2K56A1.0NF

1.4 Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-12/00F

FULL SCALEAll dimensions in inches unless otherwise specified

DAMPING DIRECTION TWO-WAY DAMPING ................................................................................................ A A

STROKE MIN = .125 inch Specify increments of 0.125 inch

ROD TYPE.058 DIA. S.S. – STANDARD........................................................................................ N N

ROD ENDPIN LINK 2-64 THD .................................................................................................... FLOOP WITH .156 ID BUSHING .................................................................................. YPLAIN...........................................................................................................................W

RETRACTED MOUNTING LENGTH MINIMUMS BY ROD END TYPE Specify to x.xxxF Y W

1.360 1.360 1.360

OTHER OPTIONSEPDM PROTECTIVE CASE ......................................................................................... KSIDE PORT (include location i.e. Rx.xxx) ...................................................................... R

2K56Custom Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2K 56 A 1.5 N F 2.00 K

Choose One

Choose One

MODEL

SpecificationsBore: .220" (5.59 mm)PERFORMANCE1. Damping Coefficient

0–0.5 lb/(in/s) adjustable0–0.8 N/(mm/s)

2. Force Guidelines Pull Damping: .50 lb max (2.22 N)Push Damping: .35 lb max (1.55 N)

3. FrictionCoefficient: 0.2Force without side load: < 1g

4. Operating Temperature Range-55°C to +150°CIf operating at temperatures above +70°C, please advise factory.

MOUNTING DATA5. Mounting Hole

Rectangular: .312" x .375" or 8 mm x 10 mm

Round: .375" or 10 mm6. Suggested Mounting

Bracket Thickness .060"–.125" (1.52–3.18 mm)

7. Mounting Nut TorqueHead: 4–8 in-lb (0.45–0.90 Nm)Rod End: 1–3 in-lb (0.11–0.34 Nm)

8. StrokeFull stroke is obtained with customerheld mounting tolerance of + .015"(0.38 mm).

Call (800) 848-7681 • Fax (203) 849-0539 • e-mail: [email protected] • www.airpot.comCUSTOM DASHPOT

Model

2K56See reverse for stock models selection

StockConfigurationsModel numbers begin with 2KSIf you require fewer than 25 units or need just a few ina hurry, a stock (preconfigured) unit will be the fastestto obtain — usually withing five working days. Airpotstocks a variety of configurations designed to satisfymost applications.

Order quantities of 25 units or more are placed inour standard production schedule with deliveries ofthree to six weeks.

The data sheets for the above models show the stock and custom configuration details for each model.Here are some simple guidelines to consider when deciding between a stock or custom unit:

Custom ConfigurationsModel numbers begin with 2KIf you prefer to select a non-stock configuration, Airpotaccepts orders in any quantity for custom units configuredfrom any of the options shown on the data sheet. Delivery formost custom units will range from two to six weeks depend-ing on the quantity, and there is no pricing premium forordering these custom units.

We are also happy to work with customers on specialdesigns that may require non-standard parts. Price and deliveryfor non-standard designs are quoted on a case-by-case basis.

APC-01G

Airpot Performancespecifications

Ordering guidelines

PULL DAMPING DIRECTION: lbs force(starting from fully retracted position)

0.22 0.366 0.627 0.945 1.281 1.75

56 95 160 240 325 444MODEL

BORE (inches)

FORCE CAPACITY GUIDELINES**

PUSH DAMPING DIRECTION: lbs force(starting from fully extended position)

0.038 0.105 0.309 0.701 1.289 2.405PISTON AREA (sq inches)

**NOTE: Best performance for each model will be achieved at or below input forces shown above. Maximum force capability is higher and is based on % of available volume displaced. Please see page 5.

0.5 1.4 4 9 17 30

0.35 1 3 7 13 24

APPROXIMATE ENERGY CAPACITY AT REFERENCE STROKES

FORCE/VELOCITY: lbs/(in/sec)

DAMPING COEFFICIENT RANGE

0-0.5 0-2 0-5 0-30 0-40 0-40

NOTE: Higher damping rates are available. Please consult an Airpot applications engineer.

MAX LEAK AT REFERENCE PRESSURES FOR ACTUATOR MODELS

NOTE: Lower leak rates are available upon request. Please consult an Airpot applications engineer.

*NOTE: If operating at temperatures over 70˚C (158˚F) please advise factory.

FRICTION COEFFICIENT

OTHER SPECIFICATIONS

PISTON FRICTION (without side load): grams

OPERATING TEMPERATURE RANGE*

MAX. PRESSURE RATING (for actuator use): psi

< 1 < 1 < 1 < 4 < 8 < 8

-55C to +150C -55C to +150C -55C to +150C -55C to +150C -55C to +150C -55C to +150C

0.2 0.2 0.2 0.2 0.2 0.2

125 100 100 100 100 100

PULL DAMPING DIRECTION: inch-lbs

PUSH DAMPING DIRECTION: inch-lbs

AT STROKE = 1 in 3 in

.22 .75

.28 1.5

1 in 3 in

.64 2.2

.80 4.2

1 in 3 in

1.8 6.1

2.2 12

1 in 3 in

4.1 14

5.2 27

1 in 3 in

7.5 26

9.5 50

1 in 3 in

14 48

18 93

MAX. LEAK RATE: SL/min

AT PRESSURE PSI = 65 125

.190 .570

50 100

.36 1.17

50 100

7.4 2.78

50 100

1.06 5.60

50 100

2.12 9.6

50 100

3.6 15.0

Fixed mass in grams (cylinder, bottom, etc.) =

COMPONENT WEIGHTS

(C1 x stroke) + C2 6.4 8.9 13.6 40.6 60.3 82.1

0.2 0.4 0.4 1.3 6.3 6.3

1.2 2.9 6.1 11.5 17.5 25.7

1.4 2.8 4.3 8.3 13.6 31.6

Movable mass in grams (piston and rod) =(C3 x stroke) + C4

C1

C2

C3

C4

11

4

1

2

3

4

5

Specifications andordering

5

31

2

10



The data sheets for the above models show the stock and custom configuration details for each model.Here are some simple guidelines to consider when deciding between a stock or custom unit:

Custom ConfigurationsModel numbers begin with 2KIf you prefer to select a non-stock configuration, Airpotaccepts orders in any quantity for custom units configuredfrom any of the options shown on the data sheet. Delivery formost custom units will range from two to six weeks depend-ing on the quantity.


APC-02M

Airpot Performancespecifications

Ordering guidelines

PULL DAMPING DIRECTION: lbs force(starting from fully retracted position)

0.22 0.366 0.627 0.945 1.281 1.75

56 95 160 240 325 444MODEL

BORE (inches)


PUSH DAMPING DIRECTION: lbs force(starting from fully extended position)


**NOTE: Best performance for each model will be achieved at or below input forces shown above. Maximum force capability is higher and is based on % of available volume displaced. Please see page 5.

0.5 1.4 4 9 17 30

0.35 1 3 7 13 24


FORCE/VELOCITY: lbs/(in/sec)


0-0.5 0-2 0-5 0-30 0-40 0-40

NOTE: Higher damping rates are available. Please consult an Airpot applications engineer.

MAX LEAK AT REFERENCE PRESSURES FOR ACTUATOR MODELS

NOTE: Lower leak rates are available upon request. Please consult an Airpot applications engineer.




PISTON FRICTION (without side load): grams


MAX. PRESSURE RATING (for actuator use): psi

< 1 < 1 < 1 < 1 < 4 < 8

-55C to +150C -55C to +150C -55C to +150C -55C to +150C -55C to +150C -55C to +150C

0.2 0.2 0.2 0.2 0.2 0.2

125 100 100 100 100 100

PULL DAMPING DIRECTION: inch-lbs

PUSH DAMPING DIRECTION: inch-lbs

AT STROKE = 1 in 3 in

.22 .75

.28 1.5

1 in 3 in

.64 2.2

.80 4.2

1 in 3 in

1.8 6.1

2.2 12

1 in 3 in

4.1 14

5.2 27

1 in 3 in

7.5 26

9.5 50

1 in 3 in

14 48

18 93

MAX. LEAK RATE: Standard Liters/min


.190 .570

50 100

.36 1.17

50 100

0.74 2.78

50 100

1.06 5.60

50 100

2.12 9.6

50 100

3.6 15.0


COMPONENT WEIGHTS

(C1 x stroke) + C2 6.4 8.9 13.6 40.6 60.3 82.1

0.2 0.4 0.4 1.3 6.3 6.3

1.2 2.9 6.1 11.5 17.5 25.7

1.4 2.8 4.3 8.3 13.6 31.6


C1

C2

C3

C4

11

A summary of all Airpot configuration basicspecifications. Refer to individual productsfor specific details.



COMPONENT WEIGHTS

(C1 x stroke) + C2 6.4 8.9 13.6 40.6 60.3 82.1

0.2 0.4 0.4 1.3 6.3 6.3

1.2 2.9 6.1 11.5 17.5 25.7

1.4 2.8 4.3 8.3 13.6 31.6


C1

C2

C3

C4


PISTON FRICTION (without side load) :grams


NOTE: Higher damping rates available. Please consult an Airpot applications engineer.

0.22 0.366 0.627 0.945 1.281 1.75

MODEL

BORE (inches)

0.5, 1.0,1.5, 2.0

0.5, 1.0,1.5, 2.0

0.5, 1.0,1.5, 2.0, 3.0

0.5, 1.0,2.0, 3.0

0.5, 1.0,2.0, 3.0

0.5, 1.0,2.0, 3.0

STROKES AVAILABLE – STOCK UNITS (inches)

0.22 0.366 0.627 0.945 1.281 1.75

2K56 2K95 2K160 2K240 2K325 2K444MODEL

BORE (inches)

0.5, 1.0,1.5, 2.0

0.5, 1.0,1.5, 2.0

0.5, 1.0,1.5, 2.0, 3.0

0.5, 1.0,2.0, 3.0

0.5, 1.0,2.0, 3.0

0.5, 1.0,2.0, 3.0

.125–11.0 .125–11.0 .125–13.0 .125–12.0 .125–10.0 .125–8.0STROKE RANGE – CUSTOM UNITS (inches) (any x.xxx)


**NOTE: Best performance for each model will be achieved at or below input forces shown above. Maximum force capability is higher and is based on % of available volume displaced.

PULL DAMPING DIRECTIONlbs force (Starting from fully retracted position) 0.5 1.4 4 9 17 30

0.35 1 3 7 13 24PUSH DAMPING DIRECTION

lbs force (Starting from fully extended position)

STROKE

PULL DAMPING DIRECTION(inch – lbs)

PUSH DAMPING DIRECTION(inch – lbs)

1 in / 3 in 1 in / 3 in 1 in / 3 in 1 in / 3 in 1 in / 3 in 1 in / 3 in

.22 / .75 .64 / 2.2 1.8 / 6.1 4.1 / 14 7.5 / 26 14 / 48

.28 / 1.5 .80 / 4.2 2.2 / 12 5.2 / 27 9.5 / 50 18 / 93


0–0.5 0–2 0–5 0–30 0–40 0–40FORCE / VELOCITY lbs/(in/sec)

0.2 0.2 0.2 0.2 0.2 0.2

< 1 < 1 < 1 < 1 < 4 < 8

-55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC

*NOTE: If operating at temperatures over 70ºC (158ºF) please advise factory.


Airpot Dashpot Performancespecifications

12 APC-02M




Requires Rod Type N.


12.2 APC-10J


12.3Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10J

DAMPING DIRECTION TWO-WAY DAMPING DASHPOT .............................................................................. A A

STROKE .5 – 1.0 – 1.5 – 2.0


ROD ENDPIN LINK 2-64 THD .................................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... Y

2KS56Stock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 56 A 1.5 N F

MODEL

Choose One

STOCK DASHPOT

Model

2KS56See reverse for custom models selection

Call (800) 848-7681 • Fax (203) 849-0539 • e-mail: [email protected] • www.airpot.com

FULL SCALEAll dimensions in inchesunless otherwise specified












12.4 Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-02M


DAMPING DIRECTION TWO-WAY DAMPING ................................................................................................ A A





1.360 1.360 1.360



Choose One

Choose One

MODEL













Model




STOCK CUSTOM


13.1 APC-10J



Mounting bracket thicknessshould not exceed .093”

13.2

DAMPING DIRECTION TWO-WAY DAMPING DASHPOT............................................................................... APULL DAMPING DASHPOT........................................................................................ BPUSH DAMPING DASHPOT........................................................................................ C

STROKE .5 – 1.0 – 1.5 – 2.0


ROD ENDBALL UNIVERSAL – 4-40 THD ................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... Y


Choose One

Choose One

MODEL



2. Force Guidelines Pull Damping: 1.4 lb max (6.23 N)Push Damping: 1.0 lb max (4.45 N)








8. StrokeFull stroke is obtained with customer held mounting tolerance of + .015" (0.38 mm).

STOCK DASHPOT

Model




Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10J




0–2 lb/(in/s) adjustable0–0.35 N/(mm/s)

2. Force Guidelines Pull Damping: 1.4 lb max (6.23 N)Push Damping: 1.0 lb max (4.45 N)

3. FrictionCoefficient: 0.2Force without side load: < 1 g







8. StrokeFull stroke is obtained with customer held mounting tolerance of + .015" (0.38 mm).


Model





ROD ENDBALL UNIVERSAL – 4-40 THD ................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... YPLAIN...........................................................................................................................W


0.950 1.140 0.950

OTHER OPTIONSEPDM PROTECTIVE CASE ......................................................................................... KADJUSTMENT KNOB .................................................................................................. MSIDE PORT (include location i.e. Rx.xxx) ...................................................................... R


Choose One

Choose One

Choose All Needed

MODEL


14.1 APC-10J




14.2


STROKE .5 – 1.0 – 1.50 – 2.0 – 3.0

ROD TYPE.058 DIA. S.S. – STANDARD........................................................................................ N.187 DIA. ALUMINUM................................................................................................. T

ROD ENDBALL UNIVERSAL – 4-40 THD (requires Rod Type N) .............................................. FLOOP WITH .156 ID RULON BUSHING (requires Rod Type N) ............................... YBALL UNIVERSAL – 10-32 THD (requires Rod Type T) ............................................ X


Choose One

Choose One

Choose One

MODEL



2. Force Guidelines Pull Damping: 4 lb max (18 N)Push Damping: 3 lb max (13 N)









STOCK DASHPOT

Model




Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10J





ROD TYPE.058 DIA. S.S. – STANDARD........................................................................................ N.187 DIA. ALUMINUM................................................................................................. T

ROD ENDBALL UNIVERSAL – 4-40 THD (requires Rod Type N) .............................................. FLOOP WITH .156 ID BUSHING (requires Rod Type N) ............................................. YBALL UNIVERSAL – 10-32 THD (requires Rod Type T)............................................. X10-32 THREADED PLAIN END (requires Rod Type T) .............................................. VPLAIN...........................................................................................................................W

RETRACTED MOUNTING LENGTH MINIMUMS BY ROD END TYPE Specify to x.xxxF Y X V W

0.950 1.140 1.880 1.435 1.435



MODEL

Choose One

Choose One

Choose One

Choose All Needed



2. Force Guidelines Pull Damping: 4 lb max (18 N)Push Damping: 3 lb max (13 N)










Model




STOCK CUSTOM


15.1 APC-10J







STROKE .5 – 1.0 – 2.0 – 3.0

ROD TYPE.187 DIA. ALUMINUM – STANDARD ........................................................................ T T

ROD ENDBALL UNIVERSAL – 10-32 THD – STANDARD ........................................................... X X

2KS240Stock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 240 A .5 T X

Choose One

MODEL

SpecificationsBore: .945" (24 mm)PERFORMANCE1. Damping Coefficient


2. Force Guidelines Pull Damping: 9 lb max (40 N)Push Damping: 7 lb max (31.10 N)


4. Operating Temperature Range-55°C to +150°C If operating at temperatures above +70°C, please advise factory.







STOCK DASHPOT

Model



15.3 Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10J




ROD TYPE.187 DIA. ALUMINUM – STANDARD......................................................................... T T

ROD ENDBALL UNIVERSAL – 10-32 THD ................................................................................. X10-32 THREADED PLAIN END .................................................................................. VPLAIN...........................................................................................................................W

RETRACTED MOUNTING LENGTH MINIMUMS BY ROD END TYPE Specify to x.xxxX V W

1.880 1.435 1.435


2K240Custom Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2K 240 A 1.5 T X 2.00 K

Choose One

Choose One

Choose All Needed

MODEL

SpecificationsBore: .945" (24 mm)PERFORMANCE1. Damping Coefficient


2. Force Guidelines Pull Damping: 9 lb max (40 N)Push Damping: 7 lb max (31.10 N)










Model




.250 DIA.ROD – 303 STAINLESS STEEL


16.1 APC-10J



16.2Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10M


STROKE .5 – 1.0 – 2.0 – 3.0

ROD TYPE.250 DIA. S.S. – STANDARD........................................................................................ T T

ROD ENDBALL UNIVERSAL – 10-32 THD – STANDARD ..........................................................X X

2KS325Stock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 325 A .5 T X

Choose One

MODEL

STOCK DASHPOT

Model




SpecificationsBore: 1.281" (32.50 mm)PERFORMANCE1. Damping Coefficient


2. Force Guidelines Pull Damping: 17 lb max (75.62 N)Push Damping: 13 lb max (57.83 N)



MOUNTING DATA5. Mounting Nut Torque

Rod End: 5–15 in-lb (0.56–1.70 Nm)6. Stroke

Full stroke is obtained with customerheld mounting tolerance of + .015"(0.38 mm).





ROD TYPE .250 DIA. S.S. – STANDARD..................................................................... T T

ROD ENDBALL UNIVERSAL – 10-32 THD ................................................................................. X1/4-28 THREADED PLAIN END ................................................................................. VPLAIN...........................................................................................................................W


2.500 2.050 2.050



Choose One

Choose One

Choose All Needed

MODEL










Model




.250 DIA.ROD – 303 STAINLESS STEEL


17.1 APC-10J





STROKE .5 – 1.0 – 2.0 – 3.0

ROD TYPE .250 DIA. S.S. – STANDARD ..................................................................... T T

ROD END BALL UNIVERSAL – 10-32 THD ................................................................ X X

2KS444Stock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 444 A 1.0 T X

Choose One

MODEL

STOCK DASHPOT

Model















ROD TYPE .250 DIA. S.S. – STANDARD....................................................................... T T



2.500 2.050 2.050



Choose One

Choose One

Choose All Needed

MODEL










Model





Data sheets show stock and custom configuration details for each of the above models.Here are some simple guidelines to consider when deciding between a stock or custom unit:

Custom ConfigurationsModel numbers begin with 2KIf you prefer to select a non-stock configuration, Airpotaccepts orders in any quantity for custom units configuredfrom any of the options shown on the data sheet. Delivery formost custom units will range from two to six weeks depend-ing on quantity.


APC-02M

Airpot Actuator Performancespecifications

Ordering guidelines

MINIMUM PRESSURE DIFFERENTIAL REQ'D FOR ACTUATION (PSI)

0.22 0.366 0.627 0.945 1.281 1.75

2K56P 2K95P 2K160P 2K240P 2K325P 2K444PMODEL

BORE (inches)


0.05 0.05 0.05 0.05 0.05 0.05

MAX LEAK AT REFERENCE PRESSURES

NOTE: Lower leak rates are available upon request. Please consult an Airpot applications engineer by calling (800) 848-7681 or by emailing [email protected]




PISTON FRICTION as % of LOAD (without side load)


0.5% - 1.5% 0.5% - 1.5% 0.5% - 1.5% 0.5% - 1.5% 0.5% - 1.5% 0.5% - 1.5%

-55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC

0.2 0.2 0.2 0.2 0.2 0.2

MAX. LEAK RATE: Standard Liters/min


.190 .570

50 100

.36 1.17

50 100

.74 2.78

50 100

1.06 5.60

50 100

2.12 9.6

50 100

3.6 15.0


COMPONENT WEIGHTS

(C1 x stroke) + C2 6.4 8.9 13.6 40.6 60.3 82.1

0.2 0.4 0.4 1.3 6.3 6.3

1.2 2.9 6.1 11.5 17.5 25.7

1.4 2.8 4.3 8.3 13.6 31.6


C1

C2

C3

C4

PRESSURE RANGE: FULL VACUUM TO (PSI) 125 100 100 100 100 100

FORCE OUTPUT AT MAX PRESSURE 4.75 lbs 10.5 lbs 30.9 lbs 70.1 lbs 128.8 lbs 240.1 lbs

18

CONFIGURATION OPTIONS FOR ACTUATOR MODELS 2KS56P AND 2K56P

18.2 APC-10J




STROKE .5 – 1.0 – 1.5 – 2.0


ROD ENDPIN LINK 2.64 THD .................................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... Y

2KS56PStock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 56P 1.5 N F

MODEL

Choose One

SpecificationsBore: .220" (5.59 mm)Piston Area: .038 in2 (24.54 mm2)PERFORMANCE1. Pressure Range

full vacuum–125 psi. (0.86 MPa)2. Force Factor

3. Minimum Pressure DifferentialRequired For Actuation.05 psi. (345 Pa)

4. Maximum Leak Rate Under Pressure.19 SL/min @ 65 psi.57 SL/min @ 125 psi

5. FrictionCoefficient: 0.2Force without side load: typically 0.5%–1.5% of load


MOUNTING DATA7. Suggested Mounting Bracket Thickness

.050"–.100" (1.27–2.54 mm)8. Mounting Nut Torque

Head: 2–4 in-lb (0.23–0.45 Nm)Rod End: 1–3 in-lb (0.11–0.34 Nm)

9. StrokeFull stroke is obtained with customer heldmounting tolerance of + .015" (.038 mm).

STOCK ACTUATOR

Model

2KS56PSee reverse for custom models selection


Piston x Pressure = Output Max Area Force Force

in2 psi lbs 4.750 lbs@125 psi

mm2 MPa N 21.13 [email protected] MPa







1.351 1.351 1.351

2K56PCustom Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2K 56P 1.5 N F 2.00

Choose One

MODEL



3. Minimum Pressure Differential Required For Actuation.05 psi. (345 Pa)

4. Maximum Leak Rate Under Pressure .19 SL/min @ 65 psi.57 SL/min @ 125 psi



MOUNTING DATA7. Suggested Mounting



9. StrokeFull stroke is obtained with customerheld mounting tolerance of ±.015"(.038 mm).

Call (800) 848-7681 • Fax (203) 849-0539 • e-mail: [email protected] • www.airpot.comCUSTOM ACTUATOR

Model

2K56PSee reverse for stock models selection





Standard Rubber Case not shown


19.1 APC-10J




STROKE .5 – 1.0 – 1.5 – 2.0 – 3.0 – 4.0


ROD ENDBALL UNIVERSAL – 4-40 THD ................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... Y


Choose One

MODEL




4. Maximum Leak Rate Under Pressure .36 SL/min @ 50 psi1.17 SL/min @ 100 psi

5. Friction Coefficient: 0.2Force without side load: typically 0.5%–1.5% of load

6. Operating Temperature Range-55°C to +150°C. If operating at tempera-tures above +70°C, please advise factory.


Round: .375" or 10 mm8. Suggested Mounting Bracket Thickness


Head: 4–8 in-lb (0.45–0.90 Nm)Rod End: 2–5 in-lb (0.23–0.56 Nm)Fitting: 12 in-lb max

10. StrokeFull stroke is obtained with customer heldmounting tolerance of + .015" (0.38 mm).

STOCK ACTUATOR

Model










ROD ENDBALL UNIVERSAL – 4-40 THD ................................................................................... FLOOP WITH .156 ID RULON BUSHING .................................................................... YPLAIN...........................................................................................................................W


0.950 1.140 0.950


Choose One

MODEL








Round: .375" or 10 mm8. Suggested Mounting Bracket Thickness




CUSTOM ACTUATOR

Model




mm2 MPa N [email protected] MPa





20.1 APC-10J




STROKE .5 – 1.0 – 1.5 – 2.0 – 3.0 – 4.0 – 5.0 – 6.0

ROD TYPE.058 DIA. S.S. – STANDARD

(do not use above 35 psi, .125" dia. rod is used above 4 inch mounting length) .............. N.187 DIA. ALUMINUM ................................................................................................ T

ROD ENDBALL UNIVERSAL – 4-40 THD (requires Rod Type N, do not use above 35 psi )......... FLOOP WITH .156 ID RULON BUSHING (requires Rod Type N) ............................... YBALL UNIVERSAL – 10-32 THD (requires Rod Type T)............................................. X


Choose One

Choose One

MODEL

SpecificationsBore: .627 " (15.93 mm)Piston Area: .309 in2 (199.20 mm2)PERFORMANCE1. Pressure Range







Rectangular: .312" x .375" or 8 mm x 10 mmRound: .375" or 10 mm

8. Suggested Mounting Bracket Thickness .060"–.125" (1.52–3.18 mm)

9. Mounting Nut TorqueHead: 4–8 in-lb (0.45 to 0.90 Nm)Rod End: 2–5 in-lb (0.23–.056 Nm)Fitting: 12 in-lb max

10. StrokeFull stroke is obtained with customer heldmounting tolerance of + .015" (.038 mm).

STOCK ACTUATOR

Model









ROD TYPE.058 DIA. S.S. – STANDARD (do not use above 35 psi or above 4 inch mounting length) .... N.187 DIA. ALUMINUM................................................................................................. T

ROD ENDBALL UNIVERSAL – 4-40 THD (requires Rod Type N) .............................................. FLOOP WITH .156 ID RULON BUSHING (requires Rod Type N) ............................... YBALL UNIVERSAL – 10-32 THD (requires Rod Type T)............................................. X10-32 THREADED PLAIN END (requires Rod Type T) .............................................. VPLAIN...........................................................................................................................W

RETRACTED MOUNTING LENGTH MINIMUMS BY ROD END TYPE Specify to x.xxxF Y X V W

0.950 1.140 1.880 1.435 1.435


Choose One

Choose One

MODEL



CUSTOM ACTUATOR

Model



SpecificationsBore: .627" (15.93 mm)Piston Area: .309 in2 (199.20 mm2)PERFORMANCE1. Pressure Range: full vacuum–100 psi. (0.69 MPa)2. Force Factor




6. Temperature Range -55°C to +150°C. If operating at temperatures above +70°C,please advise factory.



8. Suggested Mounting Bracket Thickness .060"–.125" (1.52–3.18 mm)

9. Mounting Nut TorqueHead: 4 to 8 in-lb (0.45 to 0.90 Nm)Rod End: 2 in-lb (0.23–.056 Nm)Fitting: 12 in-lb max

10. StrokeFull stroke is obtained with customer held mounting tolerance of + .015" (.038 mm).





21.1 APC-10J




STROKE .5 – 1.0 – 2.0 – 3.0 – 4.0 – 5.0 – 6.0

ROD TYPE.187 DIA. ALUMINUM – STANDARD ........................................................................ T T

ROD ENDBALL UNIVERSAL – 10-32 THD – STANDARD ......................................................... X X

2KS240PStock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 240P .5 T X

MODEL

SpecificationsBore: .945" (24 mm)Piston Area: .701 in2 (452.25 mm2)PERFORMANCE1. Pressure Range



4. Maximum Leak Rate Under Pressure 1.06 SL/min @ 50 psi5.60 SL/min @ 100 psi


6. Temperature Range -55°C to +150°C Ifoperating at temperatures above +70°C,please advise factory.



8. Suggested Mounting Bracket Thickness.060"–.125" (1.52–3.18 mm)

9. Mounting Nut TorqueHead: 4–8 in-lb (0.45–0.90 Nm)Rod End: 5–15 in-lb (0.56–1.70 Nm)Fitting: 12 in-lb max


STOCK ACTUATOR

Model









ROD TYPE.187 DIA. ALUMINUM. – STANDARD ....................................................................... T T

ROD ENDBALL UNIVERSAL – 10-32 THD ................................................................................. X10-32 THREADED PLAIN END .................................................................................. VPLAIN...........................................................................................................................W


1.880 1.435 1.435

2K240PCustom Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2K 240P 1.5 T X 2.00

Choose One

MODEL

SpecificationsBore: .945 in (24 mm)Piston Area: .701 in2 (452.25 mm2)PERFORMANCE1. Pressure Range


3. Minimum Pressure Differential Required For Actuation: .05 psi. (345 Pa)

4. Maximum Leak Rate Under Pressure 1.06 SL/min @ 50 psi 5.60 SL/min @ 100 psi


6. Operating Temperature Range-55°C to +150°C If operating at temperaturesabove +70°C, please advise factory.

MOUNTING DATA7. Mounting Hole: Round: .625" or 15.87 mm8. Suggested Mounting Bracket Thickness

.250" max (6.35 mm)9. Mounting Nut Torque



CUSTOM ACTUATOR

Model



in2 psi lbs 70.1 lbs @100 psi






4. Maximum Leak Rate Under Pressure 1.06 SL/min @ 50 psi 5.60 SL/min @ 100 psi


6. Operating Temperature Range-55°C to +150°C If operating at temperaturesabove +70°C, please advise factory.

MOUNTING DATA7. Mounting Hole: Round: .375" or 10 mm

Rectangular: .312" x .375" or 8 mm x 10 mm8. Suggested Mounting Bracket Thickness





22.1 APC-10J




STROKE .5 – 1.0 – 2.0 – 3.0 – 4.0 – 5.0 – 6.0


ROD ENDBALL UNIVERSAL – 10-32 THD – STANDARD ......................................................... X X

2KS325PStock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 325P .5 T X

MODEL

STOCK ACTUATOR

Model


SpecificationsBore: 1.281" (32.50 mm)Piston Area: 1.288 in2 (830.97 mm2)PERFORMANCE1. Pressure Range

full vacuum–100 psi (0.69 MPa)2. Force Factor


4. Maximum Leak Rate Under Pressure 2.12 SL/min @ 50 psi (0.34 MPa)9.6 SL/min @ 100 psi (0.69 MPa)




Round: .625" min or 16 mm8. Suggested Mounting Bracket Thickness


Head: 40–60 in-lb (4.5-6.8 Nm)Rod End: 5–15 in-lb (0.56–1.70 Nm)












2.250 1.820 1.820


Choose One

MODEL

CUSTOM ACTUATOR

Model





SpecificationsBore: 1.281" (32.50 mm)Piston Area: 1.288 in2 (830.97 mm2)PERFORMANCE1. Pressure Range: full vacuum –100 psi2. Force Factor








Head: 40–60 in-lb (4.5-6.8 Nm)Rod End: 5–15 in-lb (0.56–1.70 Nm)






23.1 APC-10J




STROKE .5 – 1.0 – 2.0 – 3.0 – 4.0 – 5.0 – 6.0


ROD ENDBALL UNIVERSAL – 10-32 THD ................................................................................. X X

2KS444PStock Part Description Fill in the blank boxes at the right with choices from the list below. Example: Model 2KS 444P 1.0 T X

MODEL

STOCK ACTUATOR

Model





full vacuum–100 psi (0.69 MPa)2. Force Factor







.250 max (6.35 mm)9. Mounting Nut Torque







CUSTOM ACTUATOR

Model






2.250 1.850 1.820


Choose One

MODEL





full vacuum –100 psi. (0.60 MPa)2. Force Factor





MOUNTING DATA7. Mounting Hole Round: .625" or 16 mm8. Suggested Mounting Bracket Thickness

.250" max. (6.35 mm)9. Mounting Nut Torque






1.1 1.3 2.3 2.3

0–0.3 0–.75 0–3 0–7

0.627 0.945 1.281 1.75

0.16 0.13 0.25 0.25

ENGERY CAPACITY (FT-LBS)

STROKE (inches)

SPRING FORCE EXTENDED (LBS)

SPRING FORCE RETRACTED (LBS)

PUSH ROD RESET TIME – VALVE FULLY OPEN

PUSH ROD RESET TIME – VALVE FULLY CLOSED


PISTON FRICTION


*NOTE: If operating at tempatures over 70º C (158º F) please adivse the factory.

30 ms 60 ms 70 ms 161 ms

50 ms 90 ms 150 ms 430 ms

0.28 0.27 0.5 0.5

0.2 0.2 0.2 0.2

-55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC -55ºC to +150ºC

< 1 < 1 < 4 < 8

2KS160S 2KS325S2KS240S 2KS4442MODEL

BORE (inches)

Airpot Snubber Performancespecifications

24 APC-10J

25Airpot is a registered trademark of Airpot Corporation. Pyrex is a registered trademark of Corning Glass Works. APC-10J

SpecificationsBore: .627" (15.93 mm)PERFORMANCE1. Energy Dissipation

0–.3 ft-lb (0–.41 Nm)2. Spring Force

Extended: .16 lb (0.71 N)Retracted: .28 lb (1.25 N)

3. Friction Coefficient: 0.2Force without side load: < 1g

4. Typical Push Rod Reset TimeFully Opened Valve: 30 msFully Closed Valve: 50 ms






8. Mounting Nut TorqueHead: 4–8 in-lb (0.45 to 0.90 Nm)

Call (800) 848-7681 • Fax (203) 849-0539 • e-mail: [email protected] • www.airpot.comSTOCK SNUBBER

Model

2KS160S



Part#CAD



Model

2KS240S

SpecificationsBore: .945" (24 mm)PERFORMANCE1. Energy Dissipation

0–.75 ft-lb (0–1.02 Nm)2. Spring Force




5. Temperature Range -55°C to +150°CIf operating at temperatures above +70°C, please advise factory.


Rectangular: .312" x .375" or 8 mm x10 mmRound: .375" or 10 mm

7. Suggested Mounting Bracket Thickness .060"–.125" (1.52–3.18)

8. Mounting Nut TorqueHead: 4–8 in-lb (0.45 to 0.90 Nm)




Model

2KS325S

SpecificationsBore: 1.281" (32.53 mm)PERFORMANCE1. Energy Dissipation

0–3 ft-lb (0–4.10 Nm)2. Spring Force







Model

2KS444S

SpecificationsBore: 1.750" (44.40 mm)PERFORMANCE1. Energy Dissipation

0–7 ft-lb (0–9.49 Nm)2. Spring Force




5. Temperature Range -55°C to +150°CIf operating at temperatures above +70°C, please advise factory.


29.1

Mounting bracket thickness should not exceed .093"

APC-02M

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USA and Overseas Sales representatives & distributors

Please visit our website, www.airpot.com or call us at

(800) 848-7681 for the latest and complete list of our

U.S. and overseas sales representatives and distributors.

www.airpot.com

30APC-10J

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Feeling is believing.

The precision and response ofAirpot products are difficult to appreciate until you actually holdone in your hands. We want you tojudge for yourself, so we’re offering a free sample. And if you have a specific application in mind, we can even provide a sample configured to meet your specialrequirements.

Model 160Snubber

E16 AirpelAir Cylinder

Model 160Actuator

Model 160Dashpot

Airpot and Airpelsampling Program


How to get a free sample:

All you need to do is e-mailus at the address below.

Or fax us your business cardfor a standard sample.

Or phone us at our toll-freenumber to speak with an application engineer.

Take advantage of this offertoday. There’s no obligation.

APC-02M

Documents

We make what you make run smoother. - Airpot