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Description
Chucks for turning 4-jaw mechanized combined PPT 4N-720.320, PPT 4N-720.340 (analogue chucks 1N983,1N984, SА 983, SА 984, Bison-Bial models 2615-720-320, 2615-720-340) are designed for fastening of pipes, cylindrical and eccentric details, non-concentric clamping of blanks of complex shape, provided by individual adjustment of jaws, and rod materials on turning special stations.
Chucks work from a mechanized drive mounted on the machine, transmitting torque to the gear, located at the rear end of the chuch. The left and right chucks are installed on the spindle headstock of the machine.
Chucks of models PPT 4N-720.320 and PPT 4N-720.340 have screws for tuning for processing of blanks of various shape of section.
| Model | / | Chuck diameter, D, mm | Number of jaws | Chuck height, H1, mm, max | Mounting holes diameter, D2, mm | Diameter and number of mounting holes, d/n, mm/pc. | Through-hole diameter, D0, mm | Chuck body height, H, mm | Chuck height, H1, mm, max | Cam clamping stage length, S, mm | Jaw height L, mm | Jaw width b, mm | Gripping range, mm, mm | The total clamping force in the jaws when max torque is given, даН | Maximum speed of rotation, min-1 | Chuck weight, kg |
| PPT 4N-720.320 | / | 720 | 4 | 345 | 400 | 17х8 | 320 | 195 | 235,5 | 283,5 | 35,5 | 83,5 | 210 | 230 | 60 | 70-320 | 120 | 450 | 340 | 348 |
| PPT 4N-720.340 | / | 720 | 4 | 365 | 406 | 17х8 | 340 | 195 | 235,5 | 283,5 | 35,5 | 83,5 | 200 | 60 | 70-340 | 120 | 450 | 320 | 328 |
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