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Series 647 All-Temperature Grips can be operated within an environmental chamber at temperatures up to 1000°F (540°C). Two models are available: one with a range from –130 to 315°C (–200°F to +600°F), and the other from –130 to 540°C (–200°F to +1000°F).
Remote opening and closing allows specimens to be changed quickly
Low thermal gradients minimize risk of thermal stress on specimen
Hydraulic pressure can be adjusted, allowing these grips to be used for testing a variety of materials
A wide variety of wedges are available to meet your testing requirements
Series 647 All-Temperature Grips provide all the advantages of our popular Series 647 Hydraulic Wedge Grips in a design that can be operated within an environmental chamber at temperatures up to 1000°F (540°C). Two models are available: one with a range from –130 to 315°C (–200°F to +600°F), and the other from –130 to 540°C (–200°F to +1000°F). These grips are opened and closed remotely, so there is no need to cool them down before changing specimens. Rapid specimen changeover can be accomplished without touching the hot gripping device. In addition, because the grip head operates within the chamber—at test temperatures— thermal gradients between the grip and specimen are minimized. When these grips are used within an MTS environmental chamber, gradients as low as ±3°F (1.6°C) can be achieved.
As with all MTS hydraulic grips, these provide a constant, adjustable gripping force, regardless of the test loads applied. This consistency prevents specimen slippage or damage to soft specimens during testing. When actuated, all moving parts of the grips are hydraulically locked in place so the specimen can be cycled from full tension to full compression without backlash.
Wedges for these grips are available in many configurations for testing both flat and round specimens. To minimize potential damage to your specimen shaft, you can order our flat wedges with an optional Surfalloy™ finish. This rough, tungsten carbide surface coating provides firm gripping of even the most brittle composites to deliver more accurate, repeatable material characterization.
Specifications
| MODEL | TEMPERATURE RANGE | FORCE RATING DYNAMIC | FORCE RATING MONOTONIC | UPPER WEIGHT | LOWER WEIGHT | STUD SIZE | ||||||
| 647.02A-31 | –200 to 600°F | 5.5 kip | 7.0 kip | 31 lb | 36 lb | 1/2-20 | ||||||
| 647.02A-32 | –130 to 315°C | 25 kN | 31 kN | 14 kg | 17 kg | M12 x 1.25 | ||||||
| 647.02A-51 | –200 to 1000°F | 5.5 kip | 7.0 kip | 31 lb | 36 lb | 1/2-20 | ||||||
| 647.02A-52 | –130 to 540°C | 25 kN | 31 kN | 14 kg | 17 kg | M12 x 1.25 | ||||||
| 647.10A-31 | –200 to 600°F | 22 kip | 27 kip | 125 lb | 142 lb | 1-14 | ||||||
| 647.10A-32 | –130 to 315°C | 100 kN | 120 kN | 57 kg | 65 kg | M27 x 2 | ||||||
| 647.10A-51 | –200 to 1000°F | 22 kip | 27 kip | 125 lb | 142 lb | 1-14 | ||||||
| 647.10A-52 | –130 to 540°C | 100 kN | 120 kN | 57 kg | 65 kg | M27 x 2 | ||||||
| 647.25A-31 | –200 to 600°F | 55 kip | 75 kip | 269 lb | 289 lb | 1-1/2-12 | ||||||
| 647.25A-32 | –130 to 315°C | 250 kN | 333 kN | 122 kg | 131 kg | M36 x 2 | ||||||
| 647.25A-51 | –200 to 1000°F | 55 kip | 75 kip | 269 lb | 289 lb | 1-1/2-12 | ||||||
| 647.25A-52 | –130 to 540°C | 250 kN | 333 kN | 122 kg | 13 | |||||||
Note: Grip weights would change with different extension lengths. Contact MTS for more information.
| Model Number | A | B | C* | D | E | F* | ||||||
| 647.02 | 114 mm (4.5 in) | 112 mm (4.4 in) | 267 mm (10.5 in) | 94 to 112 mm (3.8 to 4.4 in) | 66 mm (2.6 in) | 150 mm (5.9 in) | ||||||
| 647.1 | 203 mm (8.0 in) | 160 mm (6.3 in) | 297 mm (11.7 in) | 117 to 132 mm (4.6 to 5.2 in) | 99 mm (3.9 in) | 155 mm (6.1 in) | ||||||
| 647.25 | 267 mm (10.5 in) | 226 mm (8.9 in) | 285 mm (11.2 in) | 142 to 168 mm (5.6 to 6.6 in) | 122 mm | |||||||
* Note: Other grip extension lengths are available. Contact MTS for more information.
| GRIP MODEL | WEDGE SHAPE | SPECIMEN THICKNESS OR DIAMETER (VEE)* INCHES | SPECIMEN THICKNESS OR DIAMETER (VEE)* MILLIMETERS | WEDGE DIMENSIONS A | WEDGE DIMENSIONS B | |||||||
| 647.02 | Flat | 0 to 0.28 | 0 to 7.1 | 25 mm (1.0 in) | 38 mm (1.5 in) | |||||||
| 647.02 | Flat | 0.28 to 0.57 | 7.1 to 14.4 | 25 mm (1.0 in) | 38 mm (1.5 in) | |||||||
| 647.02 | Vee | 0.12 to 0.32/0.37 | 3.0 to 8.1/9.4 | 25 mm (1.0 in) | 38 mm (1.5 in) | |||||||
| 647.02 | Vee | 0.35 to 0.43/0.60 | 8.9 to 10.9/15.2 | 25 mm (1.0 in) | 38 mm (1.5 in) | |||||||
| 647.1 | Flat | 0 to 0.30 | 0 to 7.6 | 45 mm (1.75 in) | 64 mm (2.5 in) | |||||||
| 647.1 | Flat | 0.28 to 0.56 | 7.1 to 14.2 | 45 mm (1.75 in) | 64 mm (2.5 in) | |||||||
| 647.1 | Vee | 0.23 to 0.40/0.47 | 5.84 to 10.2/11.9 | 45 mm (1.75 in) | 64 mm (2.5 in) | |||||||
| 647.1 | Vee | 0.43 to 0.50/0.65 | 10.9 to 12.7/16.5 | 45 mm (1.75 in) | 64 mm (2.5 in) | |||||||
| 647.1 | Flat | 0.46 to 0.75 | 11.7 to 19.0 | 45 mm (1.75 in) | 64 mm (2.5 in) | |||||||
| 647.25 | Flat | 0.04 to 0.47 | 1.0 to 11.9 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
| 647.25 | Flat | 0.24 to 0.67 | 6.1 to 17.0 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
| 647.25 | Flat | 0.59 to 1.02 | 15.0 to 25.9 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
| 647.25 | Vee | 0.42 to 0.66/0.78 | 10.7 to 16.8/19.8 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
| 647.25 | Vee | 0.66 to 0.79/1.03 | 16.8 to 20.1/26.1 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
| 647.25 | Vee | 0.25 to 0.40/0.53 | 6.4 to 10.2/13.4 | 50 mm (2.0 in) | 89 mm (3.5 in) | |||||||
* Note: Other grip extension lengths are available. Contact MTS for more information.
