This composite tensile grip guide provides an overview of key specifications for tensile grips that are ideally suited for testing composite materials. For a detailed look at the requirements and important issues related to gripping composite laminate coupons, read our Composites Gripping Guide White Paper.
| Manual Wedge Action Grips | |
| Grip Type | Moving body wedge |
| Static Capacity | 100 kN, 150 kN |
| Operation | Manual |
| Interchangeable | Yes |
| Temperature Range | -70° to 315° C |
| Can You Attach Fixtures Without Removing Grips? Some grips can be outfitted with adaptors to attach other fixtures - offering the flexibility to perform other tests without needing to remove the grips. This is referred to as piggybacking. |
No |
| Nadcap Alignment | No |
| Catalog Numbers | 2716-002, 2716-003, 2716-008, 2736-004, 2736-005 |
| Precision Manual Wedge Grips | |
| Grip Type | Moving body wedge |
| Static Capacity | 100 kN, 250 kN |
| Operation | Manual |
| Interchangeable | Possible (not easy) |
| Temperature Range | -80° to 250° C |
| Can You Attach Fixtures Without Removing Grips?  Some grips can be outfitted with adaptors to attach other fixtures - offering the flexibility to perform other tests without needing to remove the grips. This is referred to as piggybacking. |
Yes |
| Nadcap Alignment | Yes |
| Catalog Numbers | 2716-028, 2716-030 |
| Hydraulic Wedge Action Grips | |
| Grip Type | Moving body wedge |
| Static Capacity | 130 kN, 312 kN, 600 kN |
| Operation | Hydraulic |
| Interchangeable | No |
| Temperature Range | Ambient only |
| Can You Attach Fixtures Without Removing Grips?  Some grips can be outfitted with adaptors to attach other fixtures - offering the flexibility to perform other tests without needing to remove the grips. This is referred to as piggybacking. |
Yes |
| Nadcap Alignment | Yes |
| Catalog Numbers | 2743-401, 2742-501, 2742-601 |
| Extended Hydraulic Wedge Grips | |
| Grip Type | Extended moving body wedge |
| Static Capacity | 130 kN, 312 kN |
| Operation | Hydraulic |
| Interchangeable | No |
| Temperature Range | -70° to 350° C |
| Can You Attach Fixtures Without Removing Grips?  Some grips can be outfitted with adaptors to attach other fixtures - offering the flexibility to perform other tests without needing to remove the grips. This is referred to as piggybacking. |
Yes |
| Nadcap Alignment | Yes |
| Catalog Numbers | CP104947, CP109120 |