J21S Power Press Machine

J21S Power Press Machine

The J21S power press machine features a steel plate welding bed that has an outstanding vibration absorption. The throat features a certain depth and compact structure to ensure a safe operation.

  • J21S-40T
  • J21S-125T
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Parameters
Parameter name J21S-40T J21S-125T
Nominal pressure kn 400 1250
Nominal working stroke mm 6 10
Slide stroke mm 100 140
Slider stroke number t/min 55 45
Maximum shut height mm 320 400
Closed height regulation mm 80 100
Distance from the centerline of the slider to the bed mm 500 500
Table size Length mm 400 660
Width mm 650 980
Worktable blanking hole size Length mm 170 260
Width mm 240 400
Diameter mm 160 210
Total dimensions of slider bottom Length mm 220 360
Width mm 300 480
Die handle bore Diameter mm 50 70
Depth mm 70 90
The distance between two columns of the machine body mm 260 370
Net distance between worktable and track mm 340 430
Pad thickness mm 80 110
Motor Power kw 4 11
Speed r/min 1440 1460
Size of shape Length mm 1800 2200
Width mm 1100 1500
Height mm 2400 2800
Component description

The main components of the press include the following: Machine body, Transmission, Clutch, Slider, Brake, Control mechanism.

  • Machine body

    The machine body is a cast component of the c-shaped open double column. The workbench has a rectangular hole in the center to allow finished work pieces or scraps to fall through.

  • Transmission

    The transmission system is powered using a motor mounted on the back of the fuselage.

  • Clutch

    The clutch member is positioned at the right end of the crankshaft. The clutch key is a semicircle key that relies on a pull spring in order to be placed into a regular open state.

  • Slider

    The slider is located between the fuselage guideway. The slider moves straight up and down in the V-groove of the guide rail using the crankshaft rotary motion.

  • Brake

    The brake wheel is circular and attached on the left end of the crankshaft. It is a continuous brake, with the belt made using a soft steel leather, or internal riveted copper asbestos brake tape.

  • Control mechanism

    This machine uses a mechanical manipulation mechanism to control the slider for single punching with a foot lever.
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