C Frame Crank Type Punching Press

C Frame Automatic Punching Machine Features: 1. Steel welded body with tempering treatment, offering high rigidity, accuracy, and stability. 2. Vertically positioned crankshaft for a compact structure. 3. Crankshaft undergoes grinding after high-frequency quenching for enhanced durability. 4. Extended rectangular guideway with a bronze plate surface for smooth operation. 5. Pneumatic dual balance cylinder to reduce noise and impact by balancing the slide block and punch weight. 6. PLC control system combined with imported safety dual valve for advanced performance. 7. Wet clutch and hydraulic overload protector for improved safety and reliability. 8. CE certificate for compliance and quality assurance.
C Frame Crank Type Punching Press


Details: 1. The C-frame body is made of steel plates and heat-treated, produced using CNC boring and milling centers, ensuring high rigidity and precision. 2. A wet-type pneumatic clutch with a safety solenoid valve reduces noise and extends service life. 3. High-quality gears, bushes, cylinders, link rods, and ball screws ensure superior performance, reliability, and long service life. 4. Standard equipped with a hydraulic overload protection system that stops the press if overloaded, protecting both the machine and die. Easy to reset to normal operation. 5. PLC control system using Omron or Panasonic brands, delivering high quality with global warranty. 6. Double-hand control buttons, touch screen control panel, and cam controller with encoder for user-friendly operation. 7. Slide adjust motor installed at the back of the slide for better protection and a more compact design. The slide can be adjusted with a digital display. 8. Centralized automatic grease lubrication system standard, with touchscreen settings for lubrication frequency. Manual thin oil lubrication system also available.
C Frame Crank Type Punching Press
C Frame Crank Type Punching Press

Quality Certifications: - ISO 9001 - CE - SGS inspection upon request Options: - Light curtain for safety - Inverter for adjustable stroke speed - Variable speed motor for adjustable stroke speed - Cushion - Hydraulic die quick change device Warranty and Service: - One-year warranty for the entire press. - All spare parts are available as most are manufactured in-house. - Electric components are from international well-known brands, making them easy to replace. - Technical support via email, phone, or video. - Engineers can be sent for service, installation, or training at reasonable additional cost. - English operation and maintenance manual provided with the press. - All safety warning tags and control panels are in English. Our Products Range: www.worldpowerpress.com - J23 and JH23 inclinable eccentric press, capacities from 6.3 ton to 125 ton. - JH21 C-frame single crank press, capacities from 25 ton to 400 ton. - JH31 semi-straight side single crank press, capacities from 110 ton to 400 ton. - JW31 H-frame single crank press, capacities from 110 ton to 400 ton. - JH25 C-frame double crank press, capacities from 110 ton to 315 ton. - JW36 H-frame double crank press, capacities from 110 ton to 500 ton. - JX36 close type big table press with double crank, capacities from 400 ton to 1000 ton. - JS36 close type gear press, capacities from 300 ton to 1250 ton. - JS31 close type gear press, capacities from 160 ton to 1000 ton. - Hydraulic shearing machine - Hydraulic press brake and CNC press brake Specifications of JH21 Power Press:
ITEM CODE UNIT JH21-25 JH21-45 JH21-60 JH21-80 JH21-125
Nominal Capacity Pe KN 250 450 600 800 1250
Slide Stroke S mm 80 120 140 160 180
Slide Strokes Fixed spm Times/min 100 80 70 60 50
Variable (optional) spm Times/min 60-100 50-80 45-70 40-60 35-50
Max. Die Shut Height H2 mm 250 270 300 320 350
Die Shut Height Adjustment t mm 50 60 70 80 90
Throat Depth C1 mm 210 225 270 310 350
Distance Between Columns d1 mm 450 515 560 610 670
Slide Bottom Size F-B b mm 250 340 400 460 520
L-R a mm 360 410 480 540 620
Shank Hole Size Diameter d mm 40 50 50 50 70
Depth I mm 65 60 70 65 90
Bolster Size F-B D mm 400 440 520 600 680
L-R C mm 720 825 930 950 1100
Thickness H3 mm 80 110 130 140 155
Bed Opening Hole Diameter ¢ mm 150 150 150 180 200
Overall Dimensions F-B A mm 1496 1585 1540 1765 2040
L-R B mm 945 1075 1200 1200 1320
Height H mm 2120 2391 2570 2725 3035
Motor Power   KW 3 5.5 5.5 7.5 11
Weight (approximate)   kg 2450 3550 5150 6450 9550
ITEM CODE UNIT JH21-160 JH21-200 JH21-250 JH21-315 JH21-400
Nominal Capacity Pe KN 1600 2000 2500 3150 4000
Slide Stroke S mm 200 220 220 220 250
Slide Strokes Fixed spm Times/min 45 45 30 30 30
Variable (optional) spm Times/min 30-45 25-45 20-30 20-30 20-30
Max. Die Shut Height H2 mm 400 450 500 500 550
Die Shut Height Adjustment t mm 100 110 120 120 120
Throat Depth C1 mm 400 430 450 450 490
Distance Between Columns d1 mm 736 910 980 980 1050
Slide Bottom Size F-B b mm 580 650 700 700 750
L-R a mm 700 880 950 950 1020
Shank Hole Size Diameter d mm 70 70 70 70 70
Depth I mm 100 100 130 130 130
Bolster Size F-B Single crank power press D mm 760 840 880 880 950
L-R C mm 1175 1390 1500 1540 1700
Thickness H3 mm 165 180 190 190 210
Bed Opening Hole Diameter ¢ mm 220 250 270 270 290
Overall Dimensions F-B A mm 2305 2600 2660 2720 2850
L-R B mm 1420 1540 1640 1680 1750
Height H mm 3215 3800 3865 3865 4150
Motor Power   KW 15 18.5 22 30 37
Weight (approximate)   kg 13600 19200 23200 26600 31600

For more information, please contact:


Ms Melody Yue
Tel: 86-21-62828320, 62828873
Fax: 86-21-62829970
Mobile: 008613127762639

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