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The punch is a punch press. In national production, the stamping process saves materials and energy compared to traditional mechanical processing, and is more efficient. Stamping production is mainly for plates. Through the mold, it can make blanking, punching, forming, deep drawing, trimming, fine blanking, riveting and extrusion, etc., which are widely used in various fields. For example, we use switch sockets, cups, cupboards, dishes, computer cases, many accessories can be produced through molds with a punch. The design principle of the punch press is to convert the circular motion of the ordinary punch to the linear motion. The main motor outputs the force to drive the flywheel, and the clutch drives the gear, crankshaft (or eccentric gear), connecting rod, etc., to achieve the linear motion of the slider. The movement from the motor to the connecting rod is circular.
1. Open Eccentric Presses is a general-purpose presses, suitable for forming, blanking, punching, bending and other cold stamping process.
| Model | 12T | 16T | 25T | 40T | 63T | 80T | 100T | |
| Nominal pressure (kn) | 120 | 160 | 250 | 400 | 630 | 800 | 1000 | |
| Slipper stoke (mm) | 50 | 60 | 70 | 100 | 100 | 120 | 120 | |
| Slipper stoke times(time/min) | 150 | 150 | 70 | 50 | 55 | 50 | 50 | |
| Mounting height (mm) | 130 | 170 | 200 | 210 | 220 | 280 | 280 | |
| Height adjustment(mm ) | 40 | 40 | 40 | 60 | 60 | 70 | 80 | |
| working dimension(mm)) | 220 | 290 | 320 | 400 | 450 | 480 | 580 | |
| 360 | 460 | 530 | 660 | 700 | 780 | 910 | ||
| Size of die handle bore (mm) | 30 | 35 | 40 | 50 | 50 | 60 | 60 | |
| Worktable thickness(mm) | 35 | 45 | 50 | 70 | 80 | 90 | 100 | |
| Worktable hole size | 90 | 120 | 130 | 135 | 140 | 160 | 160 | |
| Motor(kw) | 1.5 | 1.5 | 2.2 | 3 | 4 | 5.5 | 7.5 | |
| Dimension(mm) | 600*530*1500 | 760*650*1600 | 900*700*2000 | 1400*1000*2300 | 1700*1150*2500 | 2000*1300*2650 | 1950*1400*2850 | |
| The distance between the two columns of the fuselage(mm) | 170 | 190 | 230 | 250 | 280 | 320 | 390 | |
| Deep Throat(mm) | 130 | 170 | 190 | 250 | 260 | 290 | 330 |
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