Pin Grips for Flat Specimens
User-friendly pin grips are designed for conducting tensile tests of hard metal plate specimens that are difficult to grip. Specimens are held within the grips by passing pins through holes in the specimens.
A beneficial feature of these grips is different specimen thicknesses can be accommodated because of the incorporation of specimen thickness adjustment screws, or bushings, which position the specimen at the center of the grips.
Relevant Materials
Metals
Relevant Specimens
Plates
Operation
A specimen is placed within the grip faces so that the hole in the specimen is lined up with the hole in the grip faces. Bushings, followed by the pins, are inserted through the grip faces and specimen. The bushings are screwed to change the horizontal position of the specimen and line it up with the axis of the testing machine.
Screwing the bushing
Inserting the pin
Bushings line the specimen up with the testing axis
Specifications
| Maximum Grip Capacity | Applicable Specimen Thickness | Pin Diameter | Temperature Range | Grip Size | Upper Grip Mass | Upper Grip Ø Fitting (Ø pin) |
Lower Grip Ø Fitting (Ø pin)
|
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width |
Length
|
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| kN | kgf | lbf | mm (in) | mm (in) | °C (°F) | mm (in) | mm (in) | kg (lb) | mm | mm | |||
| 100 | 10,000 | 22,500 | 0.8 to 3 (0.031 to 0.12) |
18 (0.71) |
-10 to 60 (14 to 140) |
90 (3.5) |
260 (10.2) |
4 (8.8) |
50 (17.5) |
50 (17.5) |
|||
| 50 | 5,000 | 11,000 | 0.8 to 3 (0.031 to 0.12) |
12 (0.47) |
-10 to 60 (14 to 140) |
90 (3.5) |
260 (10.2) |
4 (8.8) |
35 (13) |
35 (13) |
|||
| 20 | 2,000 | 4,400 | 0.8 to 3 (0.031 to 0.12) |
8 (0.31) |
-10 to 60 (14 to 140) |
90 (3.5) |
260 (10.2) |
4 (8.8) |
25 (10) |
25 (10) |
|||
Ordering Information
| Part Number | Description |
|---|---|
| Pin Grip Sets for Flat Specimens Includes: upper and lower pin grips for flat specimens, 2 pins, and 4 bushings |
|
| 343-06853-04 | 100 kN pin grip set for flat specimens with 18 mm diameter pins and bushings |
| 343-06853-05 | 50 kN pin grip set for flat specimens with 12 mm diameter pins and bushings |
| 343-06853-06 | 20 kN pin grip set for flat specimens with 8 mm diameter pins and bushings |
| Additional Pin and Bushing Sets Includes: 2 pins and 4 bushings (one pin and bushing set is required for each pair of grips) |
|
| 343-04882-03 | 18 mm diameter pin and bushing set for 100 kN pin grips for flat specimens |
| 343-04882-02 | 12 mm diameter pin and bushing set for 50 kN pin grips for flat specimens |
| 343-04882-01 | 8 mm diameter pin and bushing set for 20 kN pin grips for flat specimens |