Wrap Grips
Wrap Grips are also known as webbing grips or capstan fixtures and are designed for tensile testing of flat cordage - ribbons, slings, straps, tarpaulin, and webbing. The flexible material is wound around the wrapping column and then secured with locking pins prior to the tensile test. These grips are ideal for high-strength textile webbing materials that are used in industrial applications such as shipping and construction.
Custom Wrap Grips are also available on request. Special capstan grip projects that have been completed include extra wide grips and also a center wrapping drum with a knurled finish.
How to use Capstan Grips
Capstan Grips are easy to use, however there are a few pointers that should be noted.
1. Orient both fixtures so that they are facing the same way. They should mirror each other, rather than being offset.
2. Arrange the sample so that the connected end of the ribbon is aligned along the centerline of the apparatus.
3. Always use both locking pins if there are 2. (20kN and up)
4. If the sample is slipping, try wrapping it around several more times.
5. Be sure to stand away from the machine when it is in operation. Test breaks from webbings, capstans, slings, and similar materials can be violent. Safety Glasses are recommended.
