Sheet Metal Punching Machine JH21- 60 Hydraulic Punching Machine for Metal Working

1. Steel welded body, tempering treatment, high rigidity, accuracy and stability;
2. Vertical located crankshaft, compact structure;
3. The crankshaft undergoes grinding treatment after high frequency quenching;
4. Lengthened rectangular guideway with a surface of bronze plate;
5. Pneumatic dual balance cylinder, which balances the slide block and punch weight to reduce noise and impact;
6. PLC control and imported safety dual valve;
7. Wet clutch and hydraulic overload protector.
Specifications | Unit | JH21-60 | JH21-80 | ||||||
Type | H | S | H | S | |||||
Nominal force | KN | 600 | 800 | ||||||
Nominal Stroke | mm | 4 | 4 | 5 | 5 | ||||
Slide Stroke | mm | 80 | 140 | 100 | 160 | ||||
Slide Strokes Per Minute | Fixed | min-1 | 90 | 70 | 80 | 60 | |||
Variable | 60-110 | 45-85 | 55-95 | 40-75 | |||||
Maximum Die Set Height | mm | 330 | 300 | 350 | 320 | ||||
Die Height Adjustment | mm | 70 | 80 | ||||||
Between slide center and frame | mm | 270 | 310 | ||||||
Columns Distance | mm | 560 | 610 | ||||||
Bottom size of slide | L×R | mm | 480 | 540 | |||||
F×B | mm | 400 | 460 | ||||||
Shank Hole Size | Dia | mm | 50 | 50 | |||||
Depth | mm | 70 | 70 | ||||||
Bolster size | L×R | mm | 930 | 950 | |||||
F×B | mm | 520 | 600 | ||||||
Blanking Hole Diameter | mm | 150 | 180 | ||||||
Bolster Thickness | mm | 130 | 140 | ||||||
Bolster Surface Height | mm | 900 | 900 | ||||||
Overall Dimensions | F×B | mm | 1540 | 1765 | |||||
L×R | mm | 1200 | 1200 | ||||||
H | mm | 2570 | 2725 | ||||||
Distance Between Foundation Bolts | F×B | mm | 1100 | 1210 | |||||
L×R | mm | 840 | 920 | ||||||
Motor | Power | Kw | 5.5 | 7.5 | |||||
Weight(Approximate) | Kg | 5150 | 6450 | ||||||
Press Pressure | Mpa | 0.5 | 0.5 | 0.5 | 0.5 | ||||

Standard accessories:
protecting pump
adjusted motor (JH21-100~400)
Optional accessories:
output shaft






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