Pneumatic Control Unit

ZwickRoell control units comply fully with the requirements for safe operation as contained in the relevant standards.

The ZwickRoell Group offers two versions of the pneumatic control unit.:

  • Pneumatic control unit operated via foot switch
  • PC-controlled pneumatic control unit
Pneumatic control unit

Significant Advantages and Features

Foot Control

Highest Level of Safety

  • The ZwickRoell pneumatic control unit satisfies all legal requirements*. The following functions guarantee maximum safety for the operator:
  • Inching mode, closing movement of the jaws only as long as the pedal is being operated. In the event of a hazardous situation, removing your foot from the pedal will cause the grips to switch to a safe condition immediately.
  • The maximum closing speed of 10 mm/s gives time to react and is independent of the supply pressure.
  • Reduced pressure during the closing process provides additional safety.
  • Electrical interlocking with the machine Emergency STOP ensures system-wide safety.
  • If the air or electricity supply is interrupted the grips will not make any uncontrolled movement but will remain in safe condition.

*e.g. Machinery Directive 2006/42/EC, BIA Fact Sheet/ Worksheet 330 216

High Functionality and Ergonomics

  • Specimens are always gripped and held perfectly, regardless of the properties of the specimen material, ensuring reliable test results and short cycle-times.
  • Constant, reproducible gripping force, even with specimen thickness reduction or pressure fluctuations in the compressed-air system.
  • High gripping forces enable easy clamping of specimens prone to slight slippage.
  • Foot control leaves your hands free, for example for dimensionally unstable specimens.
  • Hard-anodized rocker pedals ensure convenient operation.
  • Closing pressure is indicated via a manometer on the control unit, with stepless adjustment from 3 bar to 10 bar.

PC controlled

  • The pneumatic control unit can be used in conjunction with all ZwickRoell pneumatic specimen grips with nominal forces from 200 N to 100 kN. This is a cost-efficient alternative to hydraulic grips.
  • The "Force Constant Hold" force stabilization system reliably protects the specimen from unwanted tensile or compression forces due to material flow or grip deformation during the closing and gripping process.
  • The gripping force of the specimen grips can be adjusted via two selectable operating modes, depending upon the properties of the specimen and the test conditions.
  • Ease of use and documentation of test parameters with the testXpert III testing software ensures reproducible, operator-independent test conditions.
  • The control unit has a maintenance-friendly design and offers comfortable remote control operation.
  • The gripping force can be adjusted for the application with the testXpert III stepless adjustable pressure from 1 to 10 bar, making it traceable and optimal for the test requirements.
  • The specimen grips are controlled via the ergonomic remote control or with testXpert III.

Technical Overview

Foot control

Type

Pneumatic control unit

Item no.

057427

Dimensions

Height

75

mm

Width

350

mm

Depth

450

mm

Pressure display gauge

yes

Specimen grips closing speed

10 mm/s (600 mm/min)

Inlet pressure

3 to 10

bar

Permissible, adjustable operating pressure

3 to 8

bar

Connector, supply

NW7 nipple

Specimen grips connection

NW5 coupling

Ambient temperature

+10 to +35

°C

Weight, approx.

14

kg

CE conformity

yes, yes, according to machine guidelines 2006/42/EG

PC controlled

Description

Value

Type

Pneumatic control unit

Operating pressure PB

6 ... 10

bar

Dimensions

Width

200 (350)

mm

Height

770 ... 775[1]

mm

Depth

620

mm

Pneumatic input connection

Hose with nipple DN 7

Pneumatic output pressure

1 to 10

bar

Pneumatic output connection

Coupling DN 5

Power consumption:

0.4

kW

Voltage

100 ... 250

V

Frequency

50 ... 60

Hz

Safety

CE conformity

Force-zero control

Prevents impermissible loading of the specimen during the close and gripping procedure

Types of operation

- Continuous gripping at the preselected gripping pressure
- Gripping at a gripping pressure that’s proportional to the current test load (proportionality factor freely selectable)

Weight, approx.

35

kg

Ambient temperature

+10 ... +35

°C

Here is required

- CAN-BUS measurement module[2]
- Expanded remote control unit

  1. Vertically adjustable feet
  1. It is not necessary to order another one if this module exists already because of an automatic extensometer.

A Standard Made in Germany

We manufacture products with maximum care and precision and supply state-of-the-art solutions for research and development to customers from every sector and industry. Our testing machines embody the proverbial quality of Made in Germany. All testing systems comply with the EC Machinery Directive.

Experience this yourself at our annual exhibition, testXpo, in Ulm.

Dr. Jan Stefan Roell
testXpo tent
  • Made in Germany
  • Safety for the entire testing system
  • Ergonomic operating concept
  • Flexible and ready for the next generation of technology
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