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QC-Top jaws got pre-hardened to 30-35 HRC and feature finished ground tapered locating holes. On this hardness the machining of the clamping diameter is possible without problems, also avoid this hardness a too quick wear out. These jaws can be rough and finish bored on the chuck or on a QC jaw turning fixture off-line.
| Order-No | For chuck | L | B | H | Material | Weight kg per piece |
| Q4-100S | APC-4-xxx-QC | 50 | 19 | 25 | Steel | 0,17 |
| Q4-150S | APC-4-xxx-QC | 50 | 19 | 38 | Steel | 0,23 |
| Q4-200S | APC-4-xxx-QC | 50 | 19 | 51 | Steel | 0,32 |
| Q6-150S | APC-6-xxx-QC | 75 | 25 | 38 | Steel | 0,45 |
| Q6-200S | APC-6-xxx-QC | 75 | 25 | 51 | Steel | 0,59 |
| Q6-300S | APC-6-xxx-QC | 75 | 25 | 76 | Steel | 0,91 |
| Q8-200S | APC-8-xxx-QC | 100 | 38 | 51 | Steel | 1,13 |
| Q8-300S | APC-8-xxx-QC | 100 | 38 | 76 | Steel | 1,82 |
| Q10-200S | APC-10-xxx-QC | 125 | 38 | 51 | Steel | 1,59 |
| Q10-300S | APC-10-xxx-QC | 125 | 38 | 76 | Steel | 2,27 |
Other materials or dimensions are available on request.
Pie-shaped jaws provide full circle contact with the workpiece. This condition is recommended for thin walled workpieces which can become distorted during chucking. QC-Top jaws got pre-hardened to 30-35 HRC and feature finished ground tapered locating holes. On this hardness the machining of the clamping diameter is possible without problems, also avoid this hardness a too quick wear out. These jaws can be rough and finish bored on the chuck or on a QC jaw turning fixture off-line.
| Order-No | For chuck | D | ø min. | H | Material | Weight kg per set |
| Q4-151S | APC-4-xxx-QC | 100 | 8 | 38 | Steel | 2,18 |
| Q6-201S | APC-6-xxx-QC | 150 | 8 | 51 | Steel | 6,41 |
| Q8-201S | APC-8-xxx-QC | 200 | 16 | 51 | Steel | 11,80 |
| Q10-201S | APC-10-xxx-QC | 250 | 16 | 51 | Steel | 19,30 |
The upper showed top jaws are specific made for 3-jaw chucks. Other numbers of jaws, materials or dimensions are available on request.
