JH21 series Pneumatic Clutch punch press

The machine features fine steel plates welded machine body, tempering treatment (or vibration relief), shot blasting, rigidness, accuracy and stability.

Vertical located crank shaft, compact structure; the crank shaft undergoes grinding treatment after high frequency quenching, which has a good smooth finish and rotates flexibly; lengthened rectangle hex guideway with a surface of bronze plate, which has high guide accuracy.

Pneumatic dual balance cylinder, balanced sliding block and punch weight, which reduce impact and noise, eliminate the clearance between connecting rod and sliding block, reduce the impact and wear of the stress parts. The whole machine adopt PLC centralized control, the gas circuits adopt imported safety dual valve, which can achieve jog, inch, single and continuous punching; the key parts such as sliding block, guideways, worktable plate, connecting rod, and are all castings made of resin sand, which improved the surface roughness 1-2 level, and improve the size accuracy 2-3 level.

The 60T-level machines adopt the electrical control device to adjust the die height. Fine configuration, the key parts like pneumatic components, electrical components, sealing parts, buttons and etc all adopt imported parts. There are optional dry or wet friction clutch, and optional hydraulic overload protection device or press-down type safety device, all of them can be equipped with automatic lubrication, photoelectric protection, frequency conversion and speed control, air blowing device and etc according to customer needs.

	Parameters Parameters R Unit JH21-25 JH21-45 JH21-60 JH21-80 JH21-125 JH21-160 JH21-200 JH21-250 JH21-315 Nominal pressure on sliding block Pe KN 250 450 600 800 1250 1600 2000 2500 3150 Nominal pressure stroke Sp Sp mm 3 4 4 5 6 6 6 6 7 Slide stroke S mm 80 120 140 160 180 200 250 250 250 Stroke frequency Fixed n times /min 100 80 70 60 50 45 45 30 30 Variable 60-100 50-80 45-70 40-60 35-50 30-45 25-45 20-30 20-30 Die height H2 mm 250 270 300 320 350 400 450 500 500 Die Height Adjustment t mm 50 60 70 80 90 100 110 120 120 Distance between slider center and machine C1 mm 210 225 270 310 350 390 430 450 450 Vertical columns distance d1 mm 450 500 560 620 680 720 900 980 980 Slider bottom size L×R a mm 360 410 480 540 620 700 880 950 950 F×B b mm 250 340 400 460 520 580 650 700 700 Size of handle hole Diameter d mm 40 50 50 50 70 70 70 70 70 Depth I mm 65 60 70 65 90 100 100 130 130 Size of worktable L×R C mm 720 810 920 950 1070 1170 1390 1500 1540 F×B D mm 400 440 520 600 680 760 840 880 880 Thickness of worktable H3 mm 80 110 130 140 155 165 180 190 190 Worktable height H1 mm 780 800 900 900 900 900 920 920 1000 Size F×B A mm 1346 1435 1540 1765 2040 2305 2690 2660 2720 L×R B mm 945 1075 1200 1200 1320 1420 1540 1640 1680 H H mm 2120 2391 2570 2725 3035 3215 3810 3785 3865 Anchor bolts distance F×B a1 mm 830 950 1100 1210 1510 1670 2020 2150 2140 L×R b1 mm 690 745 840 920 1040 1140 1360 1460 1500 Power of electric motor Model Y100L2-4 Yl32S-4 Yl32S-4 Yl32M-4 Yl60M-4 Yl60L-4 Yl80M-4 Y200L2-6 Y225M-6 Power KW 3 5.5 5.5 7.5 11 15 18.5 22 30 Weight (Approximate)   KG 2380 3500 5150 7950 10350 15400 20500 23600 27600