Products
You are here: Home » Products » Press Machine » Crank Press » JH21 C Frame Single Crank Power Press
Share to:

JH21 C Frame Single Crank Power Press

Most popular c type press machine for sheet metal parts stamping, punching, cutting, bending, trimming and blanking process. Press tonnages are from 25ton to 400ton. JH21 c frame press is standard equip with PLC, touch screen HMI, wet type pneumatic clutch and brake, safety solenoid valve, hydraulic overload pump, automatic grease lubricant pump and slide balance cylinders. Safety light barriers, frequency inverter for adjustable stroke speeds, piston type die cushion, die quick change clamps, tonnage monitor, safety die block are all optional. This single crank press can work with coil sheet roller feeder to act as an automatic press. Several automatic presses with transfer system such as manipulators can work as full automatic press line.

Quantity:
  • JH21
  • WORLD

power press wet clutch

World patent wet type pneumatic clutch and brake for power press machine

World produce the flywheel, the drive shaft, the gear ring and assemble the clutch with imported friction discs and seals. The friction discs are oil bath which is better for lubrication and cooling. All clutches must pass temperature testing and weight balance testing. Wet clutch has the benefits such as longer service life, lower noise, cheaper maintenance cost and easier maintenance, comparing to dry type clutch. Especially for house hold appliance parts stamping due to more strict cleaness request.

PLC for pneumatic press control

Programmable logistic control system is standard equip to all world brand automatic power presses. Schneider, Omron, Panasonic are all available. Automatic grease lubrication pump is also controlled by the PLC and operator can set the lubrication time and frequency through the HMI. The press can work as inches, single stroke and continuous strokes. There is an emergency stop button on the control panel for emergency using. Press working status could be checked through the HMI too.

Hydraulic overload protection system for pneumatic press machine

World press uses hydraulic overload protection system instead of conventional mechanical shearing plate with higher reliability and more sensitive action. If wrong operation or press overload, the high pressure hydraulic oil under the bowl will return to the overload pump oil tank. Meantime a signal will be sent to the press and the press will stop immediately to protect the die and the pneumatic power press. There is a reset switch on the control panel and the overload pump will pump the hydraulic oil back to the ram. Press will be ready again for operation.

c type press compact structure

Compact stucture of the C type press

1. Cross located crankshaft

2. Motor and clutch are on the back

3. Two slide balance cylinders

4. C frame steel welded body, annealing treatment

5. Overload pump, grease pump and pneumatic system are all in the back

High precision rectangular type slide guides for the gap frame press

Lengthened rectangular type six faces ram slides with bronze plates fixed on the press body. Higher precision and longer surface life. Guide gaps could be adjusted by the bolts in the front. All the rams are casting in world factory and machining by cnc milling center. Automatic grease lubrication system provides proper lubricant for the guides. Reliable, stable and lower noise.

ball screw of power press

Con rod with ball screw for power press machines

1. Casting con rod, forging steel ball scres

2. Ball screw nitrogen treatment to improve the harness

3. Oil lubrication inside con rod

4. Worm gear sysem working with the ball screw to adjust the ram height

5. Ram adjustment precision 0.1mm with die height indicator


single crank press dimensions

ITEM CODE UNIT JH21-25 JH21-45 JH21-60 JH21-80 JH21-125
Nominal Capacity Pe KN 250 450 600 800 1250
Slide Stroke Length S mm 80 120 140 160 180
Slide Strokes Fixed
spm 100 80 70 60 50
Variable(optional)
spm 60-120 50-95 45-70 40-60 35-50
Max. Shut Height H2 mm 250 270 300 320 350
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
Table 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
Table Hole Diameter ¢ mm 150 150 150 180 200
Overall Dimensions F-B A mm 1500 1585 1540 1765 2040
L-R B mm 945 1075 1200 1200 1320
Height H mm 2120 2390 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 Length S mm 200 220 220 220 250
Slide Strokes Fixed
spm 45 45 30 30 30
Variable(optional)
spm 30-45 25-45 20-30 20-30 20-30
Max. Shut Height H2 mm 400 450 500 500 550
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
Table Size F-B D mm 760 840 880 880 950
L-R C mm 1175 1390 1500 1540 1700
Thickness H3 mm 165 180 190 190 210
Table 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


We provide a lot of optional accessories for press such as following items. Customer can buy all the accessories as a package order and we provide in time delivery and same warranty.

press light barriers

Light Barriers for Safety


press inverter

Inverter for Adjustable Stroke Speeds


press die cushion

Piston Type Die Cushion

press roller feeder

NC Roller Feeder


press QDC system

Die Quick Change Device


press tonnage monitor

Tonnage Monitor


GET IN TOUCH

    0086 21 62828320

    0086 13817120700

           0086 13817590728

    wang@worldpowerpress.com

           info@worldpowerpress.com

QUICK LINKS

PRODUCTS

Copyright © SHANGHAI YINGXIN WORLD MACHINERY CO., LTD. All rights reserved.  Website Registeration Number: 沪ICP备09030720号-2
 Technology by leadongSitemap