Precision, easy-to-load grips for a wide range of tensile and fatigue applications

Test after test, MTS 647 Side-Loading Hydraulic Wedge Grips clamp your specimen in exactly the same way for consistent, repeatable testing results.  Their superior alignment and constant, lateral gripping force minimize the bending strains, vertical loading forces and slippage that can invalidate test results and cost you time.  The hydraulic pressure to these grips is supplied by an external grip supply and is adjustable. This allows the grips to be used for testing a variety of materials, including plastics and ceramics. An adjustable gripping force prevents damage to your specimens from grip or specimen slippage during your tests.

Your specimens are also protected by the 647’s preload chamber which locks all moving grip parts in position, eliminating backlash when cycling between tension and compression. These grips can be mounted on non-hydraulic frames when used with an optional, stand-alone hydraulic pump and valve assembly. They can also be mounted in environmental chambers when equipped with optional, high temperature hydraulic fluid and seals.  A variety of wedges are available for the 647 grips and are sold separately. These grips are also available in axial-torsional models.

Features

• These grips clamp onto your specimen in the same position, test after test, to minimize the bending strains that can invalidate your test results
• Tension and fatigue capability
• Calibration, cables and attachment kits are sold separately
• Adjustable pressure allows these grips to be used for testing a variety of materials
• wide variety of wedges are available to meet your requirements
• Side loading capability for easy specimen insertion

Four Versions of the 647 Family

• Axial – This model has all of the standard features described above
• Aluminum – The 647.02 (Axial model only) grip housings are made of aluminum. This lightweight design provides excellent response in high frequency applications and makes them ideal for tabletop use. It weighs only 7 kg (15 lb)
• Axial-Torsional – This capability is available in three capacity ranges
• All Temperature – These models allow for temperatures to 540°C (1000°F). Contact MTS for additional information

For use on non-hydraulic load frames or for high temperature applications below -7°C (20°F) or above +66°C (+150°F)

All grips are sold as pairs.

All wedges and attachment kits are sold separately

Axial Model 647 Grip Specifications

Axial-Torsional Model 647 Grip Specifications

MTS 647 SIDE-LOADING HYDRAULIC WEDGE GRIPS BROCHURE

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