FIBER FILAMENT TENSILE GRIPS
Lever Action Grips and O-Ring Type
Fibers and filaments tend to be relatively thin materials compared to most, but within these types of materials there can be a wide range of thicknesses and tensile strengths that determines the appropriate gripping method. To properly hold onto these materials, Instron offers two types of grips: a lever action style and an O-ring type.
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Catalog no. 2711-006
The Lever Action Grips provide the ideal means to hold single fiber specimens. The grips are simple, lightweight, and symmetrical in design.
Principle of Operation
Lever Action Grips are generally used for the thicker range of fiber filament specimens. These grips have an adjustable clamping force, self-aligning hard rubber coated faces, and provide ease of operation similar to a clothes pin. An adapter is provided to use the lower grip in the vertical or horizontal orientation to ease specimen insertion.
Application Range
- Type of loading: tensile
- Specimen materials: fine wires, filaments
- Specimen shapes: round, flat
| Specifications | |
|---|---|
| Capacity | 5 N |
| Specimen Diameter | 2.5 mm |
| Temperature Range | -10 °C to 100 °C |
| Upper and Lower Fittings | Type Om (12 mm connection with 6 mm clevis pin) |
| Misc. | Includes a Type A (hook) for the upper grip |
Catalog no. 2711-007
The O-Ring type of grip is designed to hold very small diameter fiber specimens during tension testing. The rubber v-groove provides a gradually increased frictional hold on the specimen and helps reduce grip face pinching and subsequent specimen jaw breaks. Special considerations are built into the design, where the U-shaped bend provides sufficient area for specimen loading.
Principle of Operation
The O-Ring fiber grip utilizes two rubber o-rings sandwiched between two knurled wheels. These wheels thread on a stud and compress the o-rings to achieve desired gripping force on the specimen.
Application Range
- Type of loading: tensile
- Specimen materials: fine wires, filaments
- Specimen shapes: round, flat
| Specifications | |
|---|---|
| Capacity | 0.825 N |
| Specimen Diameter | 1 to 25 microns |
| Temperature Range | -10 °C to 100 °C |
| Upper and Lower Fittings | Type Om (12 mm connection with 6 mm clevis pin) |
| Misc. | Includes a Type A (hook) for the upper grip |