
Material Test Grips, Fixtures, and Adapters
Grips and fixtures designed for a variety of material testing applications, including tensile, compression, and bend testing. Adapters to mount grips to any universal testing machine, load cell, or force gauge.
JLW Instruments offers a wide variety of grips and fixtures to suit your industry and testing applications.
Connections on these grips and fixtures are threaded or have a female eye end. Grips and fixtures with a female eye end will have a 5/8" or 1.25" diameter. These sizes are standard for Lloyd Instruments, Chatillon, and Mark-10 equipment. We also sell these brands of test stands, load cells, and force gauges to use with our grips and fixtures.
Tensile Testing Grips
Tensile testing grips are fixtures used on a universal testing machine to hold a specimen securely while it is pulled in tension. Their purpose is to prevent slipping, ensure proper alignment, and apply force evenly so the test reflects the material’s true tensile properties.
Different grip types—such as wedge grips, pneumatic grips, vise grips, and specialized fixtures—are chosen based on specimen shape, thickness, and strength.
Compression Testing Fixtures
Compression fixtures are attachments used with a testing machines to apply controlled compressive force to a specimen. They ensure proper alignment and uniform load distribution during testing, preventing bending or off-axis loading. Common types include compression platens, self-aligning fixtures, bend fixtures and specialized fixtures designed for foam, packaging, or structural materials.
Fixtures for Peel Testing, COF, and More
Thread and Eye End Adapters
Adapters are available to mount any of our grips to any brand of equipment including Instron, MTS, Zwick, Shimpo, and more.
VIEW ADAPTERSBest Sellers

- Capacities: 50, 200, 1200, 2000 lbF
- Jaws: Serrated or Rubber

- Force capacity: 1 kN (200 lbF)
- Jaw sizes (mm): 30 x 30, 30 x 50, 30x80, 30x100
- Jaw types: Pyramid, Rubber, V-Jaw and Wave
- Opening: 0-30 mm

- Force capacity: 2.5 kN (500 lbF)
- Jaw sizes (mm): 30 x 30, 30 x 50, 30x80, 30x100
- Jaw types: Pyramid, Rubber, V-Jaw and Wave
- Opening: 0-10 mm

- Force capacity: 500 N (100 lbF)
- Jaw width (in): 1, 3, 5, 7
- Jaw type: Serrated
- Opening: 0-30 mm
- Weight: 0.14-0.41 kg (0.31-0.9 lbs)

- Standards: ASTM C1161, ASTM D790
- Load Capacity: 500 lbf or 2,000 lbf options
- 10 mm diameter rollers are included

- Steel or Aluminum
- Sizes up to 246 mm [9.69 in] diameter

- Light weight aluminum compression plates with threaded connections #10-32 or 5/16-18. Available in 2" or 3".

- Roller diameter: 25.4 mm (1 in.)
- Roller width: 25.4 mm (1 in.)

- Capacity: 100 lbF

- Pull testing of tubes, cables, and odd sample shapes
- Force capacity: 200 lbF (1 kN)
- Adjustable cam spacing: 0-0.34 in (0-8.6 mm), depending on model
- Crosscut Rollers

- Capacity: 200 lbF [1 kN]
- Max. sample size: Ø0.26 in (6.6 mm)
- Force capacity: 500 lbF
- Hook threaded connection is 1/4-28M
- 1/4-28F to 5/16-18F adapter is included

- Capacity: 1 kN [225 lbF]
- Pyramid (Serrated) Roller

- Capacity: 500 lbF (2,500 N)
- Groove sizes [in(mm)]: 0.01 (0.3), 0.03 (0.7), 0.04 (1.0), 0.06 (1.5), 0.08 (2.0), 0.09 (2.3), 0.11 (2.8), 0.12 (3.0), 0.14 (3.5), 0.15 (3.8), 0.17 (4.3), 0.18 (4.5), 0.20 (5.1), 0.21 (5.3), 0.23 (5.8), 0.25 (6.3)

- Force capacity: 1 kN (200 lbF)
- Jaw width: 31.8 mm (1.25 in)
- Jaw type: Pyramid
- Opening: 0-6 mm (0-0.25 in)
- Weight: 0.29 kg (0.75 lbs)

- Force capacity: 5 kN (1,000 lbF)
- Jaw sizes (mm): 30 x 50
- Jaw types: Pyramid, Rubber, V-Jaws
- Opening: 0-28 mm

Force capacity: 500 lbF (2.5 kN)
Adjustable cam spacing: 0-1 in (0-25.4 mm)
Crosscut Rollers

- Available in many sizes from 50 x 50 mm to 400 x 400 mm
- Aluminum or steel.

- Self-aligning compression plates designed to adjust to angular displacement of the material being tested. Diameters of 56 mm to 196 mm.

- ASTM D6862 / D3330 / D903
- Capacity: 100 lbF (500 N)

- Maximum Torque: 100 lbFin (11.3 Nm)
- Grip Opening: 0.2 - 3.50 in (5.1 - 89.0 mm)

- Load capacity: 10,000 lbf (50 kN)
- Body: Aluminum
- Lengths: 360 mm, 500 mm, 700 mm

- Capacity: 2,000 lbF [10kN]
- Opening: 0-0.3 in [0-8 mm]
- Jaw Width: 10 mm

- Force capacity: 1 kN (200 lbF)
- Jaw types: Pyramid, rubber, wave

- Force capacity: 500 N (100 lbF)
- Jaw sizes: 10 x 25, 10 x 50 mm
- Jaw types: Pyramid, Rubber
- Opening: 0-8, 0-6 mm

- Load capacity: 2,000 lbf (10 kN)
- Body: Steel
- Span: Adjustable from 4 mm -170 mm

- Roller diameter: 20 or 25 mm
- Roller width: 57 mm

- Force capacity: 20 N (5 lbF)
- Opening: 0 - 3.4 mm
- Weight: 98 g
- Jaw Type: Pyramid, 10 mm x 10 mm surface

- Force capacity: 5 kN (450 lbF)
- Specimen width max.: Max. 50 mm
- Specimen length max.: Max. 280 mm
- Standards: ASTM-D3330, ASTM-D6862, ASTM-D6252, ASTM-B571, ASTM-D2861

- Capacity: 2,000 lbF
- Groove size range: 0.08" to 0.46"


- Clamping Force: 2.2 kN / 7 bar - max 5 kN / 16 bar
