Hydraulic Power Pack GripControl

Gentle gripping with GripControl hydraulic power packs

The GripControl hydraulic power packs are tailor-made for ZwickRoell hydraulic grips and tools/fixtures up to 250 kN.
All power packs feature a high degree of safety, including Emergency STOP chain and inching mode.
Space-saving design enables the power pack to fit under the table. Extremely high availability, maintenance-friendly design, and long service life are stand-out features of these power packs.

Advantages & features

EtherCAT Interface

EtherCAT Interface
The hydraulic power pack is directly connected to the testControl machine electronics. This offers several advantages during the specimen insertion process and the test. The power pack is linked to testControl II via the EtherCAT interface, which is compatible with future generations, leaving the interface modules of the machine electronics available.

Ergonomic control

Ergonomic Control
All power pack functions can be controlled conveniently and ergonomically via the ZwickRoell testXpert III testing software or the machine remote control. This offers numerous advantages during the gripping process and the test.

Safety

Safety
Operator safety is guaranteed at all times, for example by integration into the Emergency STOP circuit and inching mode.

Perfect, gentle gripping

Perfect, gentle clamping

Various operating modes can be selected such as optional continuous gripping, re-tightening in the event of a pressure drop, or wedge gripping with a pressure proportional to the current test load.
Operation is possible even at very low pressure.
Specimen grip closing speed optionally adjustable via testXpert III.
Automatic force zero control reliably protects the specimen from unwanted tensile or compression forces due to material flow or grip deformation during the closing and gripping process.

Intelligent Changeover

Intelligent Changeover
Changing between different tests is easy with testXpert III's intelligent test environment concept. This includes automatic test-specific storage of test parameters and the test environment.

GripControl for short clamping length grips

GripControl for short gripping length specimen grips
The perfect synergy between short-clamping-length grips and GripControl allows optimum gripping of even the smallest, most sensitive specimens.

Stand-alone

The stand-alone power pack is controlled directly by its own remote control with no connection to the testControl electronics. The remote control features the following functions:

Grips can be opened or closed individually.
Pressure can be set very simply via a dial control.
Re-tightening function can also be activated via the remote control.
Short cycle times, easy to operate. Two different pumps ensure rapid closing and high pressures. Smooth, fully automatic switching.

Technical overview

Description	Value
Type	GripControl¹
Item No.	087280
Dimensions
Height	587	mm
Width	502	mm
Depth	817	mm
Weight with oil, approx.	90	kg
Operating pressure	30 ... 460²	bar
Flow rate	3.6	l/min
Ambient temperature	+10 ... +35	°C
Power input specifications
Permissible voltage fluctuation	± 10	%
Power consumption (full load), approx.	1.6	kVA
Power frequency	50	Hz
Also required
Hydraulic hoses	Yes
Remote control	Yes

Only in connection with the AllroundLine materials testing machine
Refers to the power pack only. It is possible that a lower maximum pressure (see maximum specimen grip pressure) results in conjunction with a specimen grip

Description	Value
Type	GripControl for short gripping length specimen grips¹
Item No.	087283
Dimensions
Height	584	mm
Width	502	mm
Depth	817	mm
Weight with oil, approx.	90	kg
Operating pressure	40 ... 460²	bar
Flow rate	3.6	l/min
Ambient temperature	+10 ... +35	°C
Power input specifications
Permissible voltage fluctuation	± 10	%
Power consumption (full load), approx.	1.6	kVA
Power frequency	50	Hz
Also required
Hydraulic hoses	Yes
Remote control	Yes

Only in connection with the AllroundLine materials testing machine
Refers to the power pack only. It is possible that a lower maximum pressure (see maximum specimen grip pressure) results in conjunction with a specimen grip

Item No.	053797
Height	772	mm
Width	620	mm
Depth	620	mm
Weight with oil, approx.	150	kg
Operating pressure	50 ... 460¹	bar
Flow rate	0 ... 9.8 (can be adjusted)	l/min
Noise level at p_max (without fan)	64	dB(A)
Noise level at p_max (with fan)	70	dB(A)
Safety	Emergency Stop link, CE conformity
Ambient temperature	+10 ... +35	°C
Power input specifications
Power consumption (full load), approx.	2	kVA
Power frequency	50/60	Hz
Force constant hold	Prevents impermissible loading of the specimen during the close and gripping procedure.
Operation modes	Once off setting of the preselected gripping pressure Regulation at decrease in pressure Continuous gripping at pre-determined gripping pressure Gripping pressure proportional to the current test load (proportionality factor freely selectable)
also required
CAN Bus measurement module²
Hydraulic hoses
Advanced remote control

Refers to the power pack only. It is possible that a lower maximum pressure (see maximum specimen grip pressure) results in conjunction with one specimen grip.
If a CAN-Bus measurement module is already available due to an automatic extensometer, there is no need to order an additional one.

For hydraulic grips/test tools	Fmax 50, Type 8594 (100 kN), Type 8570 (100 kN)	Fmax 100/250 kN, type 8594 (250 kN), type 8393/8493/8593 for geotextiles			For hydraulic test tools and special specimen grips¹
Item no.	325157	325159			000588
Height	563	563	563	563	563	mm
Width	474	474	474	474	474	mm
Depth	702	702	702	720	720	mm
Weight with oil, approx.	70	90	70	70	85	kg
Operating pressure²	50 ... 370	50 ... 460			50 ... 325	bar
Flow rate	1.35	3.6	2.5	1.35	0.61	l/min
Average noise level	65	70	70	65	65	dB(A)
Safety	Emergency Stop link, CE conformity	Emergency Stop link, CE conformity	Emergency Stop loop, CE compliance	Emergency Stop loop, CE compliance	Emergency Stop link, CE conformity
Connected loads:
Power consumption	1	3.5			0.5	kW
Frequency	50	50			50	Hz
Voltage:	400	400			400	V
power consumption			2.2	1
frequency			50	50
voltage			400	400
For hydraulic grips/test fixtures			Type 8589 (Fmax 150/250 kN) for short-clamping specimen grips	Type 8495 (Fmax 50/70 kN) for short-clamping specimen grips
Item No.			044069	088486
Operating pressure³			50 to 400	50 to 370

Type 8392 (Fmax 10 kN); PH ropes Type 8470 with hydraulic end clamping, HCCF device
Refers to the power pack only. It is possible that a lower maximum pressure (see maximum specimen grip pressure) results in conjunction with one specimen grip.
Refers to the power pack only. A lower maximum pressure may result in conjunction with specimen grips (see grip max. pressure).