Side action, wedge, and pneumatic grips mainly differ in how they generate clamping force and how consistent that force is as the test runs. The best choice depends on your material behavior, specimen geometry, expected load level, required alignment, and whether your priority is maximum holding power or fast, repeatable throughput.

Side action grips are a practical, general-purpose option when you want straightforward manual clamping and easy adaptation to different specimen surfaces. They are commonly selected for day-to-day QC and R&D work, especially when swapping jaw faces helps balance hold strength with avoiding surface damage.

Wedge grips are typically used when slip risk is high and tensile loads are higher, such as with metals and many composites. Their wedge mechanism naturally increases grip as the tensile load increases, which helps maintain secure holding and stable axial loading during a pull.

Pneumatic grips are a strong fit for faster cycling and improved repeatability across operators. Air actuation provides consistent, adjustable clamping pressure, which is especially helpful for softer or more crush-sensitive specimens and for high-throughput lab or production testing.

If you want to confirm the right grip style, jaw face, and mounting approach for your specimens and method, review the options on learn more and share your material and specimen details to request a quote.