The Series 646 Hydraulic Collet Grips offer the best value of any fatigue testing grips available. The design of the Series 646 Grips allows for excellent repeatability from one specimen to the next, minimizing bending strains. Loading is simply a matter of sliding the specimen into the smooth collet. The Series 646 Grips are designed primarily for round specimens and are capable up to 1,000° C.
Axial Model 646 Specifications
MODEL | FORCE | TEMPERATURE | HEIGHT | DIAMETER | MOUNTING THREAD SIZE | PART NUMBER |
646.10B | 100 kN (22 kip) | -40°C to 65°C (-40°F to 150°F) | 114 mm (4.50 in) | 171 mm (6.75 in) | M27x2 (1”-14) | 042-481-807 |
646.25B | 250 kN (55 kip) | -40°C to 65°C (-40°F to 150°F) | 171 mm (6.75 in) | 254 mm (10.0 in) | M36x2 (1 1/2”-12) | 042-481-705 |
Grips are sold in pairs. |
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Axial-Torsional Model 646 Specifications
MODEL | AXIAL FORCE | TORSIONAL FORCE | TEMPERATURE | HEIGHT | DIAMETER | MOUNTING THREAD SIZE | PART NUMBER |
646.10B | 100 kN (22 kip) | 1100 N.m (10,000 in.lb) | -40°C to 65°C (-40°F to 150°F) | 147 mm (5.8 in) | 171 mm (6.75 in) | M68x2 | 043-816-502 |
646.25B | 250 kN (55 kip) | 2200 N.m (20,000 in.lb) | -40°C to 65°C (-40°F to 150°F) | 231 mm (9.1 in) | 254 mm (10.0 in) | M92x3 | 043-816-301 |
Grips are sold in pairs. |
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Metric Collet Sizes
GRIP MODEL | SPECIMEN TYPE | PART NUMBER |
646.10-XX | Round 10 mm diameter | 038-058-917 |
646.10-XX | Round 12 mm diameter | 038-058-903 |
646.10-XX | Round 15 mm diameter | 038-058-902 |
646.25-XX | Round 30 mm diameter | 038-058-901 |
646.25-XX | Round 20 mm diameter | 038-059-203 |
646.25-XX | Round 25 mm diameter | 038-059-207 |
646.25-XX | Round 40 mm diameter | 038-059-223 |
US Customary Collet Sizes
GRIP MODEL | SPECIMEN TYPE | PART NUMBER |
646.10-XX | Round 0.25 in diameter | 038-058-905 |
646.10-XX | Round 0.50 in diameter | 038-058-907 |
646.10-XX | Round 0.75 in diameter | 038-058-909 |
646.10-XX | Round 1.0 in diameter | 038-058-908 |
646.25-XX | Round 1.0 in diameter | 038-059-202 |
WATER COOLING KIT | PART NUMBER |
Water Cooling Kit, with flow switches | 057-697-502 |
Water Cooling Kit, without flow switches | 057-697-505 |
Required for Series 647 Water Cooled Wedges |
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Includes 3.6 m (12 ft) of hose for connection to water source. | |
Attaches magnetically to load frame base or other flat steel surface. |
HIGH TEMPERATURE PACKAGE COMPONENTS | PART NUMBER |
Furnace Extension Kit for 646.10 | 045-337-601 |
Hand Pump | 100-254-831 |
Specimen Adapters |
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