JH21 series open fixed table pneumatic punch is mainly divided into open single point and open double point, with multiple models ranging from 25 tons to 400 tons.
Mainly suitable for blanking, punching, forming, bending, shallow drawing and other cold stamping process realization, widely used in electrical vehicles, agricultural machinery, tractors, mining machinery, hardware tools, machinery manufacturing and other industrial fields.
1. The pneumatic punch utilizes a pneumatic clutch to transfer flywheel inertia force to the crankshaft, connecting rod, and slider. The crankshaft connecting rod is rigid, ensuring mandatory slider movement with fixed speed, stroke times, and motion curves.
2. Compressed air is stored in an air storage tank for immediate use, preventing motor energy waste during idling. Using cylinders and solenoid valves as core components, the machine features a simple structure, low failure rate, high safety, and low maintenance costs. The 220V power supply control makes operation simple and convenient.
| No. | Type [Model] | Unit | 25 T | 45 T | 63 T | 80 T | 125 T | 160 T | 200 T | 250 T | 315 T | 400 T |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Normal Force | kN | 250 | 450 | 630 | 800 | 1250 | 1600 | 2000 | 2500 | 3150 | 4000 |
| 2 | Ability Point | mm | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 8 | 8 | 10 |
| 3 | Slide Stroke | mm | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 200 | 200 | 200 |
| 4 | Max Die Height | mm | 250 | 270 | 300 | 320 | 370 | 400 | 450 | 450 | 430 | 430 |
| 5 | Strokes per Min | s.p.m | 100 | 80 | 70 | 60 | 50 | 45 | 40 | 40 | 30 | 25 |
| 6 | Height Adjust | mm | 50 | 60 | 80 | 80 | 100 | 110 | 110 | 110 | 120 | 120 |
| 7 | Throat Depth | mm | 210 | 230 | 300 | 300 | 370 | 390 | 430 | 450 | 420 | 420 |
| 8 | Slider Size | mm | 250×360 | 340×410 | 400×480 | 420×560 | 520×620 | 580×700 | 650×880 | 700×930 | 650×850 | 650×850 |
| 9 | Bed Dimension | mm | 700×400 | 810×440 | 900×580 | 1000×580 | 1120×720 | 1200×760 | 1400×840 | 1500×880 | 1400×800 | 1400×800 |
| 10 | Main Motor | KW | 3×4 | 5.5×6 | 5.5×6 | 7.5×4 | 11×4 | 15×6 | 18.5×6 | 22×6 | 30×6 | 37×6 |