Gripping wire for tensile, torsion, or peel adhesion testing can prove difficult without the correct grips. Often, using improper grips for wire testing will damage the wire and result in failure below the actual strength of the wire. Capstan grips are an ideal gripping solution for static tensile wire testing because they effectively distribute the tensile load around the capstan ring, resulting in failure between the grips and accurate tensile measurements of wire strength. Capstan grips are also allow for easy attachment of wire specimen. TestResources has a few different styles of capstan grips for various wire, wire rope, wire cable, and wire ribbon tensile testing. Horn Style Capstan Grips: These grips are ideal for gripping fine wire and thin cable. Horn style capstan grips distribute the tensile load around a specifically designed horn and pneumatically powered plates lock the wire in place without damaging the wire. Tensile Capstan Grips for Wire, Rope, and Cable: These grips are a slightly different design from the horn style capstan grips, and allow for much higher load capacity. As with the horn style grips, the tensile load in the wire is distributed across a surface as to illuminate damage from the grips and premature failure. Tensile capstan grips are ideal for steel wire, and wire rope. Webbing Capstan Grips: These grips are used for metal foils, steel metal, and metal ribbon.
Recommended Testing Accessories
Rated to 2.5 kN (560 lbf)
Designed to test wire, sutures, tubes, rope, and similar specimens
Includes a capstan post to resist specimen slippage
Pneumatic actuation for fast and easy specimen setup
Rated to 50 kN (11,250 lbf)
Great option for strapping, fabric strips, or similar specimens
Designed to resist specimen rupture at grip interface
Accommodates various specimen thicknesses and widths
Rated to 100 kN (22,500 lbf)
Great option for strapping, fabric strips, or similar specimens
Designed to resist specimen rupture at grip interface
Accommodates various specimen thicknesses and widths