Specification - hsc-cranes.com

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Specifications

UPPER REVOLVING FRAME:All-welded, precision machined, robustconstruction. A machined surface providedfor mounting load hoist, opt. 3rd drum andboom hoist assemblies, and mounting itself onturntable bearing.

TURNTABLE BEARING WITH INTERNAL SLEWING:Single shear ball type; inner race of turntablebearing with integral, internal slewing (ring)gear bolted to lower frame, and outer race ofturntable bearing bolted to upper revolvingframe.

CONTROL SYSTEM:System contains one set each ofquadruplicate and triplicate tandem valveswhich direct oil to various machine functionand are actuated by control levers via remotecontrolled hydraulic servo for all motions.Working speeds can be precisely controlledby pilot-operated universal joystick andarmchair single axis control levers incooperation with “EPC” controller that variesengine rpm and hyd. pump dischargesimultaneously thru engine foot thrott lecontrol, or varies just hyd. pump dischargewhile keeping engine rpm, via pumpdischarge dial control. System also takes aspecially-tailored unique hydraulic circuits tomaximizes drum horsepower, and reduceshorsepower loss with eliminating thepossibility of engine stall.

Pump control system — By “EPC” controller thatprovides two modes of engine-pump control.MODE I:The “EPC” controller is normally programmedto vary the engine speed and pump dischargesimultaneously. Simply pedaling the footthrottle advances the engine to maximumspeed and the hydraulic pumps to maximumflow at the same time. This mode is suitableto precision crane work.MODE II:By activating a pump discharge control dial, itis able to vary just the pump discharge, whilekeeping engine speed fixed by setting switchlocated at instrument panel. Mode II isconvenient for duty cycle works such asclamshell operation, where the engine isnormally run at full throttle.

A specially-tailored pressure compensating valve —Utilized in hydraulic circuits to realize a goodminute operation of two main, boom hoist andopt. 3rd drums.

HYDRAULIC SYSTEM:System provided with three variabledisplacement axial piston pumps for bothindependent and combined operations of allfunctions, and four fixed displacement gearpumps for system valve and cylinder controls.

SuperstructureHITACHI SUMITOMO

Main/aux. crane hoist motors — Variable dis-placement axial piston motor withcounterbalance valve.

Boom hoist motor — Axial piston type withcounterbalance valve and spring-applied/power hydraulically released multiple wet-disctype automatic brake.

Third drum motor — Optional extra; variabledisplacement axial piston moter withcounterbalance valve as same as that ofmain/aux. winches.

Slewing motor — Two; axial piston type with spring-applied/power hydraulically released multiplewet-disc type brake.

Travel motors — Shoe-in design; variabledisplacement axial piston motor with brakevalve and spring-applied/power hydraulicallyreleased multiple wet-disc type automaticbrake.

Oil cooler — Aluminum-make; available for not only agood rustproof but also high coolingefficiency.

Hydraulic oil reservoir — 450 liters capacity.

LOAD HOIST ASSEMBLY:Front and rear main operating drums drivenby independent hydraulic motor of bi-directional, variable displacement axial pistonmotor through a 2-stage planetary reductiongear unit powering the rope drum in eitherdirection for hoisting and lowering load.Reduction gear unit installed within druminside together with multiple wet-disc brakeunit. Drum each sized in same dimension.

Brakes — Multiple wet-disc unit with negative brakedesign that takes the function of "spring-applied, power hydraulically released", andmaintains a high brake safety even if ahydraulic pressure drop in the circuit happens;installed within drum inside together withshaft-coupled reduction gear unit. Eliminateclutch, and require no brake maintenance onthis brake design.

Brake control — Applies dynamic hydraulic pressurefor brake release operation with an extremelight pedaling force.

Brake mode — Available in two modes; one isautomatic as suitable for liftcrane operation,and the other is free-fall mode as suitable forbucket operation. Free-fall interlocking is alsodesigned for fail-safe operation.

A forced-oil cooling system — Available in bothfront and rear drum brake units to keep brakeperformance even in continuous heavy-dutyoperations.

Drum rotation speed controller — Max. rotationspeed can be tuned according to arbitraryvalue that is electrically controlled by dialing,and then varies pump discharge. Available ontwo main operating drums independently.

Motor swash plate angle setting switch — Availableto set motor swash plates of front/rear drumwinch motors at a certain angle for easilysychronizing front and rear drum rotationspeeds as good for clamshell /diaphragm wallbucket applications.

Drums — One piece, parallel grooved lagging withlocking ratchet wheel cast integral; bolted toreduction gear unit. Available to wind up 41mlong cable of 28mm dia. at drum 1st layer.

Drum locks — Electrically operated pawl.

Drum rollers — Optional extra; available for rightcable winding onto drums.

BOOM HOIST ASSEMBLY:Driven by bi-directional, axial piston hydraulicmotor through 2-stage planetary reductiongear unit powering the rope drum in eitherdirection for hoisting and lowering boom.

Brake — Spring-applied, power hydraulically releasedmultiple wet-disc type automatic brake.

Drum rotation speed controller — Max. rotationspeed can be tuned according to arbitraryvalue that is electrically controlled by dialing,and then varies pump discharge.

Drum — One piece, parallel grooved lagging with lockingratchet wheel cast integral; bolted to reductiongear unit.

Drum lock — Power hydraulically operated pawl withautomatic locking device.

THIRD HOISTING MECHANISM — Optional extra; Brake — Multiple wet-disc unit with negative brake

design as same as that of front/rear mainoperating winches.

Brake control — Applies dynamic hydraulic pressurefor brake release operation as same as thatof front/rear main operating winches.

Brake mode — Available in two modes of automaticand free-fall as same as that of front/rearmain operating winches. Free-fall interlockingis also designed for fail-safe operation.

A forced-oil cooling system — Available to keepbrake performance as same as that offront/rear main operating winches.

Drum — One piece, parallel grooved lagging as sameas that of front/rear main operating winches,except drum lagging flange diameter.

Drum lock — Electrically operated pawl.

SLEWING:Driven by two units of bi-directional, axialpiston hydraulic motors through 2-stageplanetary reduction gear unit poweringslewing pinion. Slewing pinion meshes withinternal teeth of slewing (ring) gear ofturntable bearing inner race.

Brakes — Spring-applied, power hydraulicallyreleased multiple wet-disc type; provided oneach of hydraulic motor.

Slewing speed controller — Max. slewing speed canbe tuned according to arbitrary value that iselectrically controlled by dialing, and thenvaries pump discharge.

Lock — Mechanically operated drop pin.Speed — 2.5min–1 <2.5rpm>.

GANTRY:A-frame type; raised and lowered by powerhydraulic cylinders.

CENTRALIZED LUBRICATION SYSTEM:Provided as std. for A-frame and slewingcircle.

OPERATOR’S CAB:A 2.3mm thickeness steel plate constructionwith 940mm wide and a stamped-and-rounded corner designs; acoustically treated,full-vision, cushion rubber mounted, well-ventilated, full compartment, roomy operator’scab with a large straighted front window with

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green-tinted safety glass; provided with anarrangement of control station with universaljoystick and armchair control levers, sunvisor,sunshade, rear-view mirrors, dual intermittenttype window shield wipers with washer onboth front and roof windows, sliding windowson both sides of cab, and swing-link typesliding door.

Instrument panel — Contains engine monitoringlamps, graphic display panel of Load MomentIndicator, gauges & meter, warning lamps andother necessary controllers and switches.

Operator’s seat — Full adjustable reclining seat withhead rest and both R/H and L/H side armrests.

Anemometer — Optional extra;Air-conditioner — Built-in type full air-conditioner.Electric cab fan — Optional extra; wind-direction

adjustable type.Engine foot throttle — Available for right-hand foot

control, and links “EPC” controller electrically.Electric outlet — 24V; available in cab.Operator’s cab side step — Available for access

ease to operator’s cab.Gripping bar — Provided as std. for cab side step.AM/FM radio — Provided as std. with clock.Fire extinguisher — Optional extra; powder type.

MACHINERY CAB:Equipped with hinged doors on both sides formachinery access and inspection; affixed withtape-type non-skid material on the roof.

CATWALKS:Optional extra; hitched in place along bothsides of machinery cab.

MACHINERY CAB RAILING: Optional extra;

REMOVABLE COMPANY NAMEPLATE:Optional extra; available on both sides ofmachinery cab.

HYDRAULIC TAGLINE:Optional extra; available for clamshellapplication. Provided in front of upperrevolving frame for preventing a shake ofsuspended load by a 10mm dia. tug cablewith light force.

BOOM HOOKING BRACKET: Optional extra;

COUNTERWEIGHTS:Weighs 29.7ton with a 3-cast iron block,removable, corner-rounded design. Threeblocks consist of “A” (9,900kg), “B” (9,900kg)and “C” (9,900kg).

AUXILIARY WEIGHT:Weighs 2.0ton. Mounted on part of optional3rd drum location; if 3rd drum is optionallyrequired, this aux. weight is not required.

ELECTRICAL SYSTEM:24-volt negative ground system; provided withtwo maintenance free batteries of12V×150AH.

LIGHTING SYSTEM:Includes following lights.• Two working lights;• One interior cab light.

SHAFTS AND PINS:Most of shafts and pins used onsuperstructure are with zinc or nickel orchromiun plating for rustproof except A-framegantry peak shaft.

POWER UNIT:

LOWER FRAME:All-welded, precision machined, box typeconstruction; provided with longer axle withfolding type tips reaching up to axle box end ofcrawler side frame for better fitting betweenaxle and crawler side frames. A machinedsurface provided for mounting turntable bearing.

LOWER FRAME JACK-UP DEVICE:Conta ins four hydrau l ic jack cy l indersw i t h c y l i n d e r b e a m s p i n n e d t o lowerf r ame f o r ex tend ing / r e t r ac t i ng , anddisassembling/assembling ease of crawlerside frames.

Remote control box — Provided for controls of bothlower frame jack and crawler side frameremoval cylinders.

Pontoon — All-welded construction; four pontoonseach storaged at an inside part of jackcylinder beams.

CRAWLER SIDE FRAMES:All-welded, box type construction, precisionmachined; positioned on lower frame axlebeam, and held in place by beam-end pins.

Retract unit — Independently available on right-andleft-hand crawler side frames for individuallyextending/retracting, and assisting in removing

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side frames. Controlled from not onlyoperator's cab, but also. remote control boxas available.

Crawler side steps — Provided at both ends of theframes for easy access to superstructure.

DRIVE SPROCKETS:Cast steel, heat treated; one per side frame.Track drive sprocket assembly bolt-coupled to2-stage planetary reduction gear unit outercase as an integral part of shoe-in typetraction motor. Sealed between parts ofrotation and non-rotation of the motor withfloating seal.

IDLER WHEELS:Cast steel, heat treated; one per side frame.Mounted on two bronze bushings with floatingseals for lifetime lubrication.

TRACK ROLLERS:Ten per side frame; each heat treated caststeel with double flange design. All mountedon two bronze bushings with floating seals forlifetime lubrication.

CARRIER ROLLERS:Two per side frame; each heat treated caststeel with double flange design. All mountedon two bronze bushings with floating seals forlifetime lubrication.

TRACKS:Heat treated, self-cleaning, multiple hingedtrack shoes joined by full floating pins; 53 pcs.per side frame.

Shoe width — 810mm wide.Track adjustment — Manual adjustment with oil jack

and shim plate packs is standardized.Automatic track tension adjusting device —

Optional extra; available instead of std. trackadjustment to always keep track tension atoptimum level by means of power hyd.cylinder thru idler wheel actuated by powerhydraulic supplied from superstructure.

TRAVEL AND STEERING:A bi-directional, shoe-in type axial pistonhydraulic motor bolt-couples with drive sprocketthru 2-stage planetary reduction gear unit outercase at each crawler side frame end for traveland steer. Straight-line travel (forward or reverse),pivot or differential turns, and counter-rotation forspin turns available.

Brake — Spring-applied, power hydraulically releasedmultiple wet-disc type automatic brake; locatedwithin hydraulic motor. Brakes automaticallyset when travel levers are in neutral or whenengine is shut down.

Travel speed — Two stages; 2.1/1.2km/hr. (based onflat, level and firm supporting surface, andunder the conditions that no load must beapplied and front-end att. must be the 12.0mbasic boom only).

Gradeability — 30% (17°) permissible based on basicmachine without front-end attachment.

LOAD MOMENT INDICATOR:This is a fully computerized automatic over-load preventing system including total safeoperation control system, and meets ENStandards; provided with the designs of (1) nozero-point adjustment, (2) data input according tointerface counter-indication/message on displaypanel, and (3) a graphic display panel withsetting ease of viewing angle.

Construction (standard version) — Comprises (1)load detecting device with amplifier, (2) boomangle detector, (3) computerized MicroProcessing Unit (M.P.U.), and (4) graphicdisplay panel.

Functions — This system functions that if the liftingload reaches 90% of the rated one specifiedin the crane capacity chart, an intermittentpre-warning buzzer is given; if it is 100%, awarning is given by a continuous buzzer, andall peri l side motions are automaticallystopped. The machine, however, can beoperated in safety side motions.

Display panel design — A graphic display panel isdesigned, and it is able to input necessaryoperating conditions/data according to interfacecounter-indication/message on the display panel,and the display panel indicates ten and somekinds of the present lifting and workingconditions/data like “l i f t ing load”, “max.allowable lifting load”, “working radius”, “max.allowable working radius”, “boom angle”, “loadratio”, “boom/jib lengths”, “engine rpm” and soon when working. In addition, the displaypanel is provided with three warning indicatorsover “engine over-heat”, “hyd. oil over-temp.”and “brake oil over-temp.”.

DRUM ROPE OVER-PAYOUT LIMITER:Optional extra; Available on both front andrear main drums, and functions toautomatically stop drum rotation when no. ofrope winding at 1st layer becomes three(3).

MAIN HOOK OVER-HOISTING LIMITER:Limit switch type. Available to prevent hookover-hoisting with functions of automatic drumbraking with hydraulic lock, and warning bybuzzer.

BOOM OVER-HOISTING AND - LOWERING LIMITER:Available in two kinds of devices; one is limitswitch located on a part of boom foot forpreventing boom over-hoisting, and the otheris the safety function of the LMI available toautomatically prevent boom over-hoisting and-lowering with the functions of automatic drumbraking with hydraulic lock, and warning bybuzzer. Further boom protection from rapidboom over-hoist by hook over-hoist motionunder mal-function of main hook over-hoistinglimiter is available as one of functions of theLMI.

BOOM BACKSTOPS:Dual; telescopic design with spring buffers.

SECONDARY BOOM OVER HOISTING LIMITER:Additional l imit switch located on boombackstops; this is as a further safety devicefor redundant boom protection.

SLEW LOCK:Mechanically operated drop pin; available tofirmly lock superstructure in four positions offacing front or rear or left or right to undercarriage.

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Safety Devices

DRUM LOCKS:Electrically operated pawl locks is available onfront and rear main drums while powerhydraulically operated pawl lock is availableon boom hoist drum with an automatic lockingdevice as std.

THIRD DRUM LOCK:Provided as std. when an optional 3rd drumwinch is provided.

FREE-FALL INTERLOCKING:Available on both front and rear main drumbrake lines for fail-safe operation. Functionsthat free-fall brake mode is only availablewhen drum brake pedal is pressed eventhough brake mode is switched on free-fallmode.

SLEWING BRAKE SAFETY CIRCUIT:Available not to start engine wheneverslewing brake is off.

ENGINE START INTERLOCK SYSTEM:Available not to start engine whenever drumbrake mode is in “free-fall”.

BOOM ANGLE INDICATOR:Pendulum type; mounted on right-hand side ofbottom section of crane main boom.

HOOK LATCH:Provided on every kinds of hook to preventout of place of cable from hook.

LEVEL GAUGE:Bubble type; located on operator’s cab floor ofsuperstructure.

SLEWING ALARM:This is by buzzer, and flasher lamps locatedon both sides of machinery cab.

TRAVEL ALARM:Available by an intermittent buzzer.

SPEED SLOWDOWN DEVICE:This is for speed slowdown of hoisting andlowering motions of boom which are availablejust before automatic stopping at both uppera n d l o w e r s i d e l i m i t s o f b o o m a n g l ee v e n though control lever(s) is st i l l athoisting/lowering position to prevent a shock.

SLEWING BRAKE LAMP:Provided on operator’s cab instrument panel;this is available to confirm whether or notslewing brake is applied.

SIGNAL HORN:Available as warning just before every kindsof motions are initiated.

LOCK LEVER (FOOL PROOF SHUT-OFF LEVER):Located in the cab exit; this is available toautomatically deactivate and lock hydraulicsystem.

FRONT-END ATT. ERECTION MODE:This is an internal, integral function of the LMI.In the range out of crane working area, the LMIdisplay panel automatically indicates “Now, outof crane working range” with a rigginginstruction, and it is available to lift front-end att.off ground without the influence of LMI safetyfunctions, and, after front-end att. is lifted overthe range of crane working area, LMI safetyfuction gets back automatically for safe erection

work. This function is also available for the workof vice-versa.

LMI SAFETY CIRCUIT-OFF SWITCH:Available in key type for a good crane safetyoperation management without fail.

TRAVEL DIRECTION ARROW:Attached each on crawler side frames.

GAUGES & METER:Engine water temperature gauge, fuel gaugeand hour-meter are provided on instrumentpanel.

WARNING LAMPS:Available to let operator warn abnormalmachine conditions as to pilot pressure andbrake system of two main and opt. 3rd drums.;provided on instrument panel.

ENGINE MONITORING LAMPS:Available to let operator warn engine abnormalconditions as to battery charge, radiator coolantlevel, air filter clogging, water temp, contorolunit and glow plug.; provided on instrumentpanel.

EMERGENCY ENGINE STOP SWITCH:Located at cab instrument panel, and availableto stop engine whenever it is necessary.

REAR VIEW MIRRORS:Two; provided on front-left and -right corners ofsuper-structure.

THREE COLOR PERCENTAGE INDICATOR:Optional extra; this is with three colors ofGreen, Yellow and Red. Each color indicatesthe load percentage to rated capacity; Greenshows less than 90% as safety, Yellow shows90 to 99% as marginal, and Red shows over100% as over-loading. As further function, Redlamp comes on automatically when operatorcuts off safety circuit of the LMI absent-mindedly.

LIFTING HEIGHT INDICATION DEVICE:Available to indicate lifting height above groundor depth below ground on display panel of theLMI. Also, hook hoisting speed slowdownfunction is available just before automaticstopping at a desired height under hook heightsetting before operation.

MICROPHONE & LOUD-SPEAKER:Optional extra; this is for operator’sconvenience for loud speaking.

DRUM LIGHT & MIRROR:Optional extra; these are available for checkingrope winding onto front and/or rear drum(s).

AUX. HOOK OVER-HOISTING LIMITER:Optional extra; this is available for auxiliarycrane hoist with optional. short jib. Performsthe same function as that of “main hook over-hoisting limiter” mentioned before.

ANEMOMETER:Optional extra; analogue type. Indicates windvelocity and alarms when the velocity exceedsa figure set.

CABIN ROOF WINDOW GUARD: Optional extra;EMERGENCY ESCAPE HAMMER: Optional extra;

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BOOM:Lattice construction, round tubular main chords, alloy, hi-ten steel, with bracing of round steel tubing.Boom connections........................................In-line pin connections at 1.55m deep and 1.55m wide.Basic boom...................................................Two-piece, 12.0m basic length; 6.0m base and tapered top sections.Boom head machinery ...........................Four head sheaves and two guide sheaves with rigid type rope guard.

Sheaves all mounted on anti-friction bearings of conventional, non sealed-grease type.

Boom extensions..........................................Optional extra; available in 3.0m, 6.0m and 9.0m lengths with pendants.Maximum boom length.................................60.0m for liftcrane application.

24.0m for clamshell application.

SHORT JIB:Optional extra; all-welded construction having single sheave head machinery. Pinned to 6.0m tapered crane top section.Available for 13.5ton lift as maximum with single part hoist line.

HOOK BLOCKS:Sheaves all mounded on anti-friction bearings. Available in 4 kinds of capacities as under:90t, four sheaves with duplex type hook...........................................................Optional extra.50t, three sheaves..............................................................................................Optional extra.35t, one sheave..................................................................................................Optional extra.13.5t, ball hook ...................................................................................................Optional extra.

BAIL AND BRIDLE:All-welded construction; provided with larger sheaves of a 21.0 D/d ratio on both bail and bridle for 10-part boom hoistrope reeving. Bail pinned to A-frame gantry, and bridle suspended between a 10-part boom hoist rope and pendantropes connecting to tip of 6.0m tapered crane top section. Sheave all mounted on anti-friction bearings of conventional,non sealed-grease type.

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Front-end Attachment

DRUM DATA:

Notes:1. Line speed is based on drum first layer and rated engine rpm.2. Hoisting line speed varies under load and operating conditions.3. The figures with an asterisk mark(*) indicate the rope line speed as available for clamshell and MHL/MEH diaphragm wall excavating

bucket applications.

HOIST REEVING:

CABLES:Front drum....................................................3×F (40), non-spin type, 28mm dia./200m long, breaking load 680kN 〈69.3t〉.Rear drum ...................................................Optional extra; 3×F (40), non-spin type, 28mm dia./170m long, breaking load

680kN〈69.3t〉.Boom hoist drum..........................................IWRC 6×P･WS (31), 22.4mm dia./150m long, breaking load 367kN 〈37.4t〉.Optional 3rd drum ......................................Optional extra; IWRC 6×P.WS(31), non-spin type, 26mm dia., breaking load

500kN 〈51.0t〉. Length deperds on request.

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■LIFTCRANE CAPACITIES:

Liftcrane 90 metric tons - EN Rating

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■WORKING MASS & GROUND CONTACT PRESSURE:

Note: Working mass shown above is with 12.0m basicboom, 29.7ton counterweight, 2.0ton auxiliary weightand optional 90t hook block.

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Notes — Liftcrane capacities1. Capacities included in this chart are the maximum allowable,

and are based on machine standing level on firm supportingsurface under ideal job conditions.

2. Capacities are in metric tons, and are rated in accordancewith EN13000 Standard.

3.Capacities are based on freely suspended loads and make noallowance for such factors as the effect of wind, suddenstopping of loads, supporting surface conditions, and operatingspeeds. Operator must reduce load ratings to take suchconditions into account. Deduction from rated capacities mustbe made for mass of hook block, weighted ball/hook, sling,spreader bar, or other suspended gear.Hook block mass is as follows:90t.............1.20ton 50t ............0.95ton 35t ...........0.73ton13.5t..........0.62ton

4. All capacities are rated for 360° slewing.5. Least stable rated condition is over the side.6. A 29.7ton counterweight and 2.0ton aux. weight (or opt. 3rd

drum) are required for all capacities on this chart.7. Crawler side frame must be fully extended for all operating

conditions.8. Attachment must be erected and lowered over the ends of

the crawler mounting.9. Main boom length must not exceed 60.0m.

Maximum boom length when mounting short jib is 54.0m.10. Capacities when handling load off main boom head sheaves

in case of mounting short jib on top of boom are detailed; ifrequired, please consult us or nearest distributor.

SCX900HD-2 SHORT JIB CAPACITIES:Max. 13.5t

Note: Jib capacities are almost equal to the figures made by thededuction of a 620kg from the liftcrane capacities for boomlength up to 54.0m unless restricted by the maximum jibcapacity shown above. As to the details, please consultus or nearest distributor.

Short jib (Option)

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Liftcrane Working Ranges

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Notes :The above diagram shows two kinds of locuses of boom peak sheave and hook points; the lower lines of boom indicatethe locus of hook point, and the upper lines each show the locus of boom peak sheave point.

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Clamshell 3.0m3 over

Working radius

5200

6575

3400

2100

1400

1250

53756295

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Notes:1. Max. clamshell rating is 12.5t.2. Mass of bucket plus load should not exceed clamshell ratings

shown above. Following data are for a general diggingapplication buckets.

3. Boom length shall not exceed 24.0m.4. Apparent specific gravity of lifting material:

Earth .................1.7~1.8t/m3

Gravel ...............1.8~2.0t/m3

5. High gantry is required and side frame must be fully extendedfor all operating conditions. Also, 29.7t counterweight and 2.0taux. weight are required for all clamshell ratings shown above.

6. Max. digging depth below ground shall be 36m.

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■CLAMSHELL RATINGS:

A

B

C

Bucket overall height (opened)

Bucket overall height (closed)

Bucket opening width

3.0m3

4.55�

3.55�

3.50

(in m)

Notes:1. Buckets of 3.0m3 are for a general excavating purpose.2. Other type of bucket than above is also available.

■BUCKET DIMENSIONS:

(in mm)

■WORKING MASS & GROUND CONTACT PRESSURE:

Note: Working mass shown above is with 12.0m boom, 29.7toncounterweight, 2.0ton aux. weight, hydraulic tagline winderand 3.0m3/6.5t clamshell bucket.

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General Dimensions

Note: 1. The above general arrangement is under liftcrane application with 12.0m basic boom, lower frame jack-up device andoptional 90t hook block.

2. When A-frame gantry is lowered, the dimension from center of rotation to the end of A-frame gantry is 5,200mm, and theheight from G.L. to the end of the gantry is 3,400mm.

1200

0

(in mm)

1110

310 19

45

3400

(336

5)1600

940

1600

3880

810

425

300

4990(3400)

5375

2100

6295

1250

3400

1400

6550

(Std

)

5200

14

Standard equipment Optional equipment

Standard and Optional Equipment

¡Drum rollers; available on front/rear maindrums;

¡Catwalks; along both sides of machinerycab;

¡Machinery cab railing;¡Third hoisting mechanism;¡Re-fuel pump;¡Microphone & loud-speaker;¡Fire extinguisher;¡Electric cab fan;¡Hyd. tagline; available for clam shell

application;¡Reeving winch;¡Removable company nameplate; available

on both sides of machinery cab.

Superstructure ¡Mitsubishi 6M70-TL diesel engine with a272kW <370ps> rated output;

¡Hydraulic system with three variabledisplacement axial piston pumps and four fixeddisplacement gear pumps; provided withaluminum-make oil cooler;

¡Control system with one each of quadruplicateand triplicate tandem valves and pilot-operateduniversal joystick and arm chair single axiscontrol levers; provided with “EPC” controller(easy-precise-minute engine rpm and hyd.pump oil flow control device), and specially-tailored pressure compensating valves;

¡Front and rear main operating drum winchesof 245kN〈25t〉 line pull with 596mm dia.drum lagging driven by independent variabledisplacement hyd. motor; provided withmultiple wet-disc type brake installed withindrum inside together with reduction gear unitwith negative brake design, brake releasecontrol under dynamic hyd. pressure, and aforced-oil cooling system. In addition, drumrotation speed controller are also provided.Available to operate in two brake modes ofautomatic and free-fall;

¡Boom hoist mechanism driven by hyd. motorwith automatic brake; provided with drum rotationspeed controller;

¡Slewing mechanism with turntable bearing;driven by two hyd. motor w/spring-applied,power hydraulically released multiple wet-discbrake; provided with speed control device;

¡Power hydraulically retractable A-framecylinder;

¡940mm wide, full-vision operator’s cab with astamped-and-rounded corner design and largefront window; provided with an arrangement ofjoystick plus armchair operator control station,instrument panel and engine foot throttle;

¡29.7ton counterweight;¡2.0ton auxiliary weight; if opt. 3rd drum winch

is required, this aux. weight is not furnished;¡Machinery cab with hinged doors;¡24-volt electrical system with two 12-volt batteries;¡Lighting system:

• Two working lights;• Room lamp;

¡Rear view mirror;¡Accessories;

• AM/FM radio w/clock;• Engine hourmeter; • Engine tachometer;indicated on displaypanel of LMI;

• Fuel gauge;• Eng. water temp. gauge;• Engine over-heat indicator; available on

display panel of LMI;• Hyd. oil over-temp. indicator; available ondisplay panel of LMI;

• Brake oil over-temp. indicator; available ondisplay panel of LMI;

• 24V electric outlet;• Dual, intermittent window shield wipers withwashers; available on both front and roofwindows;

• Cigar lighter;• Ashtray;• Sunvisor;• Sunshade;• Cup holder;• Non-skid surfaces;• Cab front step;• Floor mat;• Built-in type full air-conditioner;• Engine foot throttle;

¡Cab side step;¡Gripping bar (for cab side stop);¡Superstructure under-cover;¡Centralized lubrication system. (for A-frame

and slewing circle.)

15


Undercarriage ¡4,990mm gauge by 6,295mm long crawlerlower with power hydraulically retractable/extendible crawler side frames;

¡Lower frame jack-up device w/4-vertical hyd.jack-up cylinder and remote control unit;

¡Crawler drive units with shoe-in type tractionmotor with wet-disc type automatic brakes;

¡810mm wide track shoes;¡Manual track tension adjusting devices;¡Lifetime lubricated track components;¡Crawler side steps.

Liftcrane Att. ¡12.0m basic boom; 6.0m base section, and6.0m tapered top section;

¡Four boom head sheaves w/two guide sheavesand rigid type cable guard;

¡Bail and bridle assemblies;¡Main crane hoist cable; 28mm dia./200m long;¡Boom hoist cable; 22.4mm dia./150m long.

¡Automatic track tension adjusting device,i/o manual one as std.

¡3.0m boom extension;



¡Short jib;

¡Short jib (two sheaves);

¡90t duplex type hook block;

¡50t hook block;

¡35t hook block;

¡13.5t ball hook;

¡Aux. crane hoist cable, 28mm dia./170mlong;

¡Skywalk;

¡Buffer;

¡Openable rigid guard;

¡Boom hooking bracket;¡Crawler side frame lifting wire.

16


Safety Devices ¡Load Moment Indicator; this is a computerizedautomatic over-load preventing system incl. totalsafe operation control system; provided with agraphic display panel indicating ten and some kindsof present lifting conditions;

¡Lock lever (Fool proof shut-off lever);¡Emergency engine stop switch;¡Engine start interlock system;¡Non-drum brake preventing device;¡Free-fall interlocking;¡Speed slowdown device;¡Before-work check monitor;¡Boom over-hoisting and lowering limiter;¡Main hook over-hoisting limiter;¡Secondary boom over hoisting limiter;¡Slewing alarm;¡Travel alarm;¡Slewing lock;¡Main and aux. drum pawl locks;¡Automatic drum lock; boom hoist drum;¡Boom angle indicator;¡Level gauge; fitted on floor of operator’s cab;¡Slewing brake lamp;¡Warning lamps; avallable for pilot line and

brake system;¡Slewing brake safety circuit;¡Signal horn;¡Hook latch;¡Engine monitoring lamps;¡Travel direction arrow;¡Front-end att. erection mode;¡LMI safety circuit-off switch;¡Lifting height indication device.

¡Three color percentage indicator;¡LMI mode select switch;¡Anemometer;¡Cabin roof window guard;¡Aux. hook over-hoisting limiter;¡Open/close and suspend cable disengagement

limiter;¡Drum rope over-payout limiter;¡Emergency escape hammer;¡Drum light & mirror.

17

■Crane Boom Combination

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18

Transport Data

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MEMO

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MEMO

• We are constantly improving our products and therefore reserve the right to change designs and specifications without notice.• Units in this specification are shown under International System of Units; the figures in parenthesis are under GravitationalSystem of Units as old one.

Address Inquires to:

SCX900HD-2

Printed in Japan1104(A)05H.EA179

(Supersedes 0810(A)01T.EA137)

Documents

Specification - hsc-cranes.com