MTS Systems
Series 647 Hydraulic Wedge Grips
The Series 647 Hydraulic Wedge Grips are versatile, easy-to-load grips for a wide range of tensile and fatigue applications.
MTS Systems
Series 647 All-Temperature Hydraulic Wedge Grips
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).
Key Features & Benefits
- Rapid Specimen Changeover — Remote opening and closing allows specimens to be changed quickly
- Accurate — Low thermal gradients minimize risk of thermal stress on specimen
- Adjustable Pressure — Hydraulic pressure can be adjusted, allowing these grips to be used for testing a variety of materials
- Multiple Wedge Selection — A wide variety of wedges are available to meet your testing requirements
Applications
Test types
Test specimens
Test standards
Brochures & Datasheets
Technical Specifications
| 647 ALL-TEMPERATURE HYDRAULIC WEDGE GRIPS | ||||||
|---|---|---|---|---|---|---|
| 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 | 131 kg | M36 x 2 |
| Note: Grip weights would change with different extension lengths. Contact MTS for more information. | ||||||
| Dimensions | ||||||
| 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 (4.8 in) | 165 mm (6.5 in) |
| * Note: Other grip extension lengths are available. Contact MTS for more information. | ||||||
| Wedge Selection | ||||||
| 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) | |
| * Maximum specimen diameter for vee wedges is based on loading specimen from top, not side. |
Specifications are taken from the official MTS product page and may change; please confirm with our team before ordering.
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