VAMCO International, Inc.

QUANTUM the high-speed electronic roll feed with

unprecedented capabilities

Bulletin No. KEG201004

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QUANTUM - innovation

The best possible performance of a

high-speed press can only be

achieved if it is equipped with a high-

speed and accurate feeding system.

For this reason VAMCO invented the

Quantum: the world’s first and only

fully programmable, high-speed

electronic roll feed. VAMCO has

produced over 900 Quantum feeding

systems and is the proven leader in

high-speed feeding technology.

Through continuous research and

development, the Quantum remains

one of the fastest, most advanced

high performance feeding system

available today.

The Quantum Concept

Traditionally, high-speed presses

were equipped with mechanical cam

driven feeds in order to achieve high

production rates. Although, with the

onset and development of servo

technology, servo driven press

feeds became an integral part of

press room productivity. However,

the increase in flexibility gained with

servo driven equipment was offset

by their limitations in overall per-

formance and accuracy. Thus, the

use of conventional servo feeds was

restricted to low speed and low pre-

cision applications.

In 1994, VAMCO introduced the

Quantum; a feed designed to com-

bine the speed and performance of

a cam driven unit with the flexibility

and ease of use of a servo feed.

Equipped with two high perform-

ance custom built servo motors,

both the drive roll axis and the ma-

terial release axis are electronically

cammed to the press through a

press mounted resolver. This

closed loop feedback system coor-

dinates precise movements of the

feed with the position of the press.

Roll Separation Servo Motor

Drive Roll Servo Motor

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Advanced Man Machine Interface (MMI)

The Quantum interface is powered

by a user friendly graphical operat-

ing system. From the MMI, the user

can program the following variables

for every job:

Feed Length Feed Angle Roll Separation Amount Roll Separation Angle Material Grip Force Material Thickness Once a job is optimized, this data is

stored in the Quantum’s job data-

base for later recall.

flexibility - QUANTUM

Operation & the Remote Pendant

Once a job is either programmed or

recalled from the database, the

complete operation of the feed unit

can be accomplished from the Re-

mote Pendant. This cast aluminum

device is robust enough to be

mounted directly to the press yet it is

light enough to remain portable.

The most frequently used feeding

functions easily performed from the

Remote Pendant include:

Select Mode of Operation Open/Close Feed Rolls Manual Jogging of Feed Rolls

(forward or reverse) Drive On Error Reset Emergency Stop

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Digital Oscilloscope, Signature Analysis and Die Jam Anticipation & Correction

QUANTUM - advanced technology

Every Quantum is equipped with a

Digital Oscilloscope which records

and displays feed and system data.

This data can be displayed in “real

time” on the MMI for the operator’s

viewing. Drive roll torque and veloc-

ity information is displayed for each

advance of the stock material.

The Quantum’s Signature Analysis

tool can be used to analyze the

data acquired by the Digital Oscillo-

scope to detect and troubleshoot

many die related problems including

pulled slugs, incorrect pilot timing,

die jams, stock material camber,

equipment misalignment and many

other common stamping problems.

By learning the signature of a “good”

feeding cycle (Figure - 1, red curve),

adjustable tolerance bands (Figure -

1, green curves) can be created

around the known “good” signature.

This signature is then compared to

all future feed cycles. If at any time

during the feeding process the ac-

tual value of the signature violates

the user defined tolerance band

(Figure - 2), the feeding system im-

mediately takes a user defined cor-

rective action. Possible actions in-

clude an operator warning, top stop

of the press, or the immediate stop-

page of the press and feed system.

Furthermore, Vamco’s patented Die

Jam Anticipation & Correction

feature can be utilized to command

the press to stop while simultane-

ously pulling the stock material back

to the position where it was last

stamped. This ensures that the

stock material is placed in a safe

position for any subsequent die

strikes which occur while the press

is coming to a stop.

Press Shut Height Variation Compensation

VAMCO’s patented Press Shut

Height Variation Compensation

(PSHVC) technology solves the

problem of misformed parts that

result from changes in press shut

height due to dramatic changes in

press ram velocity. By allowing the

feed unit to be programmed to only

advance the stock material when

the actual press speed is above the

user defined press speed, the

Quantum feed unit will simply hold

the material in its current position,

on progression, ensuring that only

good parts are produced. This fea-

ture is available on any Quantum

feeding system but has proven to

be most useful in the production of

high precision electrical connectors.

Figure - 1 A “good” signature using tolerance bands created

through Signature Analysis.

Figure - 2 A signature that has violated the tolerance bands

created through Signature Analysis.

Bad Part Made Without PSHVC

Good Part Made With PSHVC

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Automatic Pilot Timing Set-Up

The most difficult and time consum-

ing aspect of the feed set-up proc-

ess is determining the exact press

angular position when the drive rolls

must separate to allow the pilot pins

to enter the stock material. Incorrect

separation timing reduces pilot pin

effectiveness and leads to acceler-

ated die wear, defective parts, costly

die crashes, and lost production.

The Quantum’s patented Automatic

Pilot Timing Set-Up software auto-

mates this once tedious task by

actually sensing the pilot pin entry

into the stock material. This elimi-

nates hours of time wasted during

feed set-up as well as the possibility

of any release timing set-up error.

advanced technology - QUANTUM

The Quantum was designed to

withstand the vibration of the most

severe stamping applications.

Each feed unit is engineered to

mount directly to the press ensuring

the highest possible feeding accu-

racy.

Typical applications include:

Electric Motor & Transformer Laminations

Single & Multiple Piece Electri-cal Connectors

Electrical Switches Razor Blades Coin Blanks Lead Acid Battery Grids Perforating Applications Automotive Chain & Power

Transmission Parts Automotive & General Use

Bearings Medical Supplies Ammunition Beverage Containers Plastics

Applications

90° 270°

180°

0°

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QUANTUM - advanced applications

By eliminating the power transmis-

sion components of mechanical

feeds, the Quantum feeding system

is ideal for applications that require

multiple feed units.

The Quantum-C45 Double Feed

System is ideally suited for feeding

stock material into tools that re-

quire multiple strips. As shown in

Figure - 3, a single Quantum Con-

troller coordinates the motion of two

independent feed units, each

mounted on a bracket with both

vertical and lateral adjustment. The

unique cantilever roll design allows

the distance between the parallel

strips to be varied from 0 mm to the

maximum permitted by the press

opening.

A further advantage of the cantile-

ver roll design is the ability to

quickly interchange feed rolls for

the processing of preformed stock

material.

As shown in Figure - 4, the Quantum

Push/Pull Feed System is ideal for

feeding very soft materials including

lead or plastics. Again, the use of a

single Quantum Controller ensures the

coordinated feed roll motion necessary

to maintain constant tension in the

stock material as it advances across

the die.

Double Feed System

Push/Pull Feed System

Figure - 3

Figure - 4

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Tandem Feed System (Rotor/Stator Laminations)

Tandem press production lines (Figure -

6) are commonly used when the bed

length of a stamping press is not large

enough to stamp both the rotor and the

stator of an electric motor in the same

die. This is an ideal application for the

Quantum feeding system as two feed

units can be configured with different

drive roll widths ensuring that the drive

rolls of the second feed unit completely

covers the blank diameter of the first

operation. Furthermore, both feed units

can be controlled from a single Quantum

Controller allowing for easier set-up and

overall system monitoring.

advanced applications - QUANTUM

The Quantum feed system can be con-

figured to handle coiled stock material up

to 1550 mm wide. Despite the massive

size of this machine, the Quantum - 1550

(Figure - 5) still delivers coiled stock ma-

terial up to 90 meters per minute. Even

at this high production rate, the Quantum

maintains the accuracy required for ap-

plications without pilot pins. Since the

Quantum feed unit requires no mechani-

cal power takeoff from the press, it can

be mounted on a pivoting bracket to al-

low quick and easy access to the die.

Wide Coil Feed System

Figure - 5

Figure - 6

Applications:

Scroll Material Beverage Containers Large Laminations Perforating

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QUANTUM - performance

VAMCO offers worldwide telephone,

internet, and in-plant customer sup-

port from our factory headquarters in

North America as well as our ser-

vice offices in Europe, and Asia.

Quantum spare parts are tested and

prepared for immediate shipment in

all three locations.

Technical Specifications

Material Width Material Thickness Indexes per min

Quantum - C45 0 - 100 mm 0 - 1.0 mm Max. 2500/min

Quantum - 100 0 - 100 mm 0 - 2.0 mm Max. 2500/min

Quantum - 250 0 - 250 mm 0 - 4.0 mm Max. 1500/min

Quantum - 250HS 0 - 250 mm 0 - 4.0 mm Max. 1500/min

Quantum - 400 0 - 400 mm 0 - 4.0 mm Max. 1200/min

Quantum - 400HS 0 - 400 mm 0 - 4.0 mm Max. 1200/min

Quantum - 550 0 - 550 mm 0 - 6.5 mm Max. 1000/min

Quantum - 550HS 0 - 550 mm 0 - 6.5 mm Max. 1000/min

Quantum - 700HS 0 - 700 mm 0 - 4.0 mm Max. 800/min

Quantum - 48 0 - 1220 mm 0 - 5.5 mm Max. 800/min

Global Service

VAMCO Shanghai

VAMCO Machine(Shanghai) Co. Ltd Bldg#2, No.145 Jintang Rd, Tangzhen Industrial Park, Pudong, Shanghai 201201, P.R.China Tel: +86-21-33827716 Fax: +86-21-33827671 E-mail: wukai@vamcointernational.com General Manager: Wu Kai

VAMCO International, Inc. 555 Epsilon Drive Pittsburgh, PA 15238 USA Telephone: 001-412-963-7100 Fax: 001-412-963-7160 Website: www.vamcointernational.com Email: vmsales@vamcointernational.com President: Bryan Gentile Vice President of Sales: Scott Welsh

MAWI GmbH Beermiss 18 75323 Bad Wildbad, Germany Tel: +49 (0)7081 954440 Email: sales@mawi-gmbh.de

General Manager: Peter Kaiser

North America Europe Asia

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