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J21 fixed bolster mechanical crank press, casting iron body or steel plate welded body, big gear with flywheel, two stages transmission, rolling key type clutch, mechanical brake band, foot pedal and two-hand button control. Dry type pneumatic clutch is optional. Slide balance cylinder is standard for big size eccentric punch presses.
 Two-stage transmission of eccentric crank pressTransmission: motor-flywheel-big gear-shaft-conrod-ram Bevel gear is more stable and lower noise Forged crankshaft Bronze conrod bush High quality ball screw V type ram gibs Dry type pneumatic clutch is optional |
 Fixed bolster of mechanical crank pressTwo working tables: one is included in the press body, the another one is movable Scrap dropping hole size is customizable T slots location is customizable Throat depth is customizable if with steel plate welded body |
J21 fixed bolster mechanical crank press, casting iron body or steel plate welded body, big gear with flywheel, two stages transmission, rolling key type clutch, mechanical brake band, foot pedal and two-hand button control. Dry type pneumatic clutch is optional. Slide balance cylinder is standard for big size eccentric punch presses.
 Two-stage transmission of eccentric crank pressTransmission: motor-flywheel-big gear-shaft-conrod-ram Bevel gear is more stable and lower noise Forged crankshaft Bronze conrod bush High quality ball screw V type ram gibs Dry type pneumatic clutch is optional |
 Fixed bolster of mechanical crank pressTwo working tables: one is included in the press body, the another one is movable Scrap dropping hole size is customizable T slots location is customizable Throat depth is customizable if with steel plate welded body |
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