HYDRAULIC SIDE ACTION TENSILE GRIPS

With a Patented Self-Centering Mechanical Synchronizer

Hydraulic Side Action Tensile Grips on KPX Testing System

Instron hydraulic side acting grips provide an innovative solution for high-capacity testing and deliver enhanced gripping performance, usability, and operator safety over traditional grip designs. These advanced grips maintain a constant clamping force on the specimen that acts perpendicular to the direction of testing and is independent of tensile loading.


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PATENTED DURASYNC TECHNOLOGY



Hydraulic Side Action Grip with Operator




SUPERIOR GRIPPING PERFORMANCE

Instron’s dual side-acting grips incorporate our latest DuraSync technology. This patented self-centering mechanical synchronizer provides many improvements over hydraulic or mechanical rack and pinion designs commonly found in the marketplace.

  • Side-load dampening reduces the risk of grip damage when testing slightly bent or irregularly shaped specimens such as rebar or wire rod
  • Opposing jaw faces repeatedly self-center during specimen clamping reducing testing time and eliminating the need to resynchronize the grip faces between tests
  • The synchronizer is located outside the gripping pocket preventing mechanical failure due to contamination





Features

  • Adjustable clamping force alleviates specimen slippage and grip breaks
  • Operator safety is improved through the use of low-pressure (131 bar) external supply lines
  • Hydraulic power is provided by the machine’s main power supply reducing the cost and floor space associated with a secondary grip pumping unit  Note: For static electromechanical systems, a low-pressure, standalone pump is required.
  • Fully open-front design provides easy specimen insertion increasing testing efficiency and safety
  • DuraSync 2 offers semi-open back design which facilitates testing of shorter specimen when using an automatic extensometer
  • Jaw faces are easily installed from the front side of grips and require no maintenance beyond simple cleaning
  • Ergonomic control handset includes user-friendly, 3-position switches for upper and lower grip operation, and a magnetic back adding to operator convenience and productivity
  • Grips are field-serviceable reducing down time and eliminating the cost of sending the grips back to the factory for service

Application Range

  • Tensile tests on a wide range of materials including: steel rod and plate, machined rounds and flats, reinforcement bar, 3- and 7-wire strand, conveyor belt, and wood products
  • Tension-tension cyclic tests
  • Compression testing using optional secondary load string adapter
  • Low-frequency, thru-zero cyclic testing with thru-zero support option
Hydraulic Side Action Grips



Specifications
Catalog no. Force Capacity Operation   Specimen Range
        Rounds Flats Cable
W-5450 250 kN Dual Side-Acting Standard 3 - 60 mm 0 - 60 mm -
W-5400 600 kN Single Side-Acting Standard 3 - 57 mm 0 - 75 mm -
W-5410 600 kN Dual Side-Acting Standard 3 - 60 mm 0 - 100 mm -
W-5420 600 kN Dual Side-Acting Premium  Premium Model
The premium grips can be configured for testing standard flat, round, wire strand, and cable specimens. This model can also be configured for thru-zero (negative load) testing, provided the load frame is capable of thru-zero (cyclic) loading.		 3 - 60 mm  Thru-Zero Specimen Range: 3 - 60 mm 0 - 100 mm  Thru-Zero Specimen Range: 0 - 75 mm 4.8 - 25.4 mm
W-5460 1000 kN Dual Side-Acting Premium  Premium Model
The premium grips can be configured for testing standard flat, round, wire strand, and cable specimens. This model can also be configured for thru-zero (negative load) testing, provided the load frame is capable of thru-zero (cyclic) loading.		 3 - 85 mm 0 - 120 mm 4.8 - 25.4 mm
W-5430 1500 kN Dual Side-Acting Premium  Premium Model
The premium grips can be configured for testing standard flat, round, wire strand, and cable specimens. This model can also be configured for thru-zero (negative load) testing, provided the load frame is capable of thru-zero (cyclic) loading.		 3 - 85 mm  Thru-Zero Specimen Range: 3 - 85 mm 0 - 120 mm  Thru-Zero Specimen Range: 0 - 85 mm 4.8 - 25.4 mm
W-5440 2000 kN Dual Side-Acting Premium  Premium Model
The premium grips can be configured for testing standard flat, round, wire strand, and cable specimens. This model can also be configured for thru-zero (negative load) testing, provided the load frame is capable of thru-zero (cyclic) loading.		 3 - 100 mm  Thru-Zero Specimen Range: 3 - 85 mm 0 - 120 mm  Thru-Zero Specimen Range: 0 - 85 mm 4.8 - 25.4 mm
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