Pneumatic Control Unit

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

The Zwick/Roell Group offers two versions of the pneumatic control unit.:

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

Significant Advantages and Features

Foot Control

Highest Level of Safety

  • The Machinery Directive 2006/42/EC imposes stringent safety requirements on pneumatic control units.
  • Inching mode and low actuation pressure provide optimal protection against pinching/jamming. The jaws open immediately if the pedal is released during closing.
  • If the Emergency STOP switch is activated, the machine's electrical chain brings the jaws to a halt immediately or returns them to the safe starting position in inching mode.
  • If the air or power supply is interrupted, the jaws will not make any uncontrolled movements or they are returned to the safe starting position in inching mode. Intentional one-time opening is available.
  • When the machine is switched off, the pneumatic control unit is in a "safe state".
  • The maximum closing speed of 10 mm/s, as required by the standard, is constant and independent from the supply pressure.

High Functionality and Ergonomics

  • This pneumatic control unit can be used in conjunction with all pneumatic grips from the Zwick portfolio.
  • In the event of pressure fluctuations or power supply failure, the pressure in the grips remains constant, and test results are not affected.
  • The ergonomic design of the rocker pedals ensures a high level of operator convenience.
  • The rocker pedals are hard anodized and protect against wear and tear.
  • The inching mode function enables correction of specimen alignment during the gripping procedure.
  • The closing pressure is indicated via a pressure gage, with stepless adjustment from 3 bar to 10 bar.
  • Maintenance and service friendly design (for example, manual bleeding).
  • A connection is made to the specimen grips and safety circuit of the testControl/testControl II control electronics.

PC controlled

  • The pneumatic control unit can be used in conjunction with all Zwick Roell 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

Description

Value

Type

Pneumatic control unit

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

PC controlled

Description

Value

Type

Pneumatic control unit

Operating pressure PB

6 ... 10

bar

Power consumption:

0.4

kW

Voltage:

100 ... 250

V

Frequency

50 ... 60

Hz

Weight, approx.

35

kg

Ambient temperature

+10 ... +35

°C

Saksassa valmistettua laatua

Valmistamme tuotteemme mahdollisimman huolellisesti ja tarkasti, ja testauslaitteemme edustavat uusimpia teknisiä innovaatioita, toimialasta riippumatta. Koestuskoneemme heijastelevat mitä suuremmissa määrin "Made in Germany"-brändin mukaista laatua. Kaikki testausjärjestelmämme on valmistettu EU:n nykyisen konedirektiivin mukaisesti.

Koe tämä kaikki itse jokavuotisessa testXpo-näyttelyssämme Saksan Ulmissa.

Tohtori Jan Stefan Roell
testXpo-teltta
  • Made in Germany
  • Turvallisuutta koko testausjärjestelmälle
  • Ergonominen käyttää
  • Joustava ja valmiina myös tulevaisuuden testaustarpeisiin
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