Radial Force Compression Stations

Compression Stations with Adapter

Blockwise offers radial compression stations to be used as “fixtures” on 3rd party tensile testers for radial force testing
  • Lowest Cost if You Have a Tensile Tester
  • Adapt to Almost Any Tensile Tester
  • Overforce Safety Clip

Our adapter hardware can attach Blockwise compression stations to tensile testers by Zwick, ADMET, Instron, Tinius-Olsen, and others. If we don't have an adapter kit for your tensile tester, we will design one. These kits include top and bottom couplings and force-limiting clips to prevent accidental damage to the compression station due to excessive force. Temperature control systems are also available

If you have a tensile testing machine, then buying a fixture is the least expensive way to begin radial force testing. To learn about the choice of a complete system vs. a fixture, see the article Knowledge Base: Radial Force Testing – Complete System vs. Fixture.

The diameter of the opening may be varied by positioning the arm of the compression station. There is a known relationship between the arm position and the diameter of the opening, and between the force on the arm and radial force applied by the object in the station. See Knowledge Base: Measuring Radial Force. The tensile tester machine controls the position of its head and measures the force applied to the head. With the proper equations, this is equivalent to controlling the diameter of the opening and measuring the radial force applied to the compression dies by the object being tested.


Model RJU Radial Force Testing Fixture

With a decade of service in radial force testing the J-Crimp™ is a proven choice. We recommend you select this model unless you need a bigger size. High precision, very low friction, no die-to-die wear, high durability.

Diameter Length Max Radial Force
0-16 mm 62, 124 mm 660 N

Model RTU Radial Force Testing Fixture

For very long or large-diameter specimens, the Twin-Cam™ compression station provides the lowest friction and best geometric accuracy in its size range. No die-to-die wear, very durable.

Diameter Length Max Radial Force
0-30 mm 124, 310 mm 980 N

Model RLU Radial Force Testing Fixture

FFor very large-diameter specimens, the Large Twin-Cam™ compression station provides the lowest friction and best geometric accuracy in its size range. No die-to-die wear, very durable.

Diameter Length Max Radial Force
0-60 mm 124, 248 mm 930 N