• punching machine
  • punching machine


Punching machine JH21-250

Warranty:  13 months

Voltage: As customers’ requirement

Color: As customers’ requirement

After-sale service: Available

Brand Name: WMTCNC

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    This series of press adopts rotating key positive clutch,which has a simple structure and is convenient to operate and maintain,achieving smooth operation, low impact and low noise.


    Specifications Unit JH21-250
    Type H S
    Nominal force KN 2500
    Nominal Stroke mm 6.5 6.5
    Slide Stroke mm 160 220
    Slide Strokes Per Minute Fixed min-1 45 30
    Variable 30-55 20-35
    Maximum Die Set Height mm 530 500
    Die Height Adjustment mm 120
    Between slide center and frame mm 450
    Columns Distance mm 980
    Bottom size of slide L×R mm 950
    F×B mm 700
    Shank Hole Size Dia mm 70
    Depth mm 130
    Bolster size L×R mm 1500
    F×B mm 880
    Blanking Hole Diameter mm 240
    Bolster Thickness mm 190
    Bolster Surface Height mm 1000
    Overall Dimensions F×B mm 2660
    L×R mm 1640
    H mm 3850
    Distance Between Foundation Bolts F×B mm 2100
    L×R mm 1460
    Motor Power Kw 22
    Weight(Approximate) Kg 23200


    Main Features

    • Steel welded body, tempering treatment, high rigidity, accuracy and stability.

    • Vertical located crankshaft, compact structure.

    • The crankshaft undergoes grinding treatment after high frequency quenching.

    • Lengthened rectangular guideway with a surface of bronze plate.

    • Pneumatic dual balance cylinder, which balances the slide block and punch weight to reduce noise and impact.

    • PLC control and imported safety dual valve.

    • Wet clutch and hydraulic overload protector.

    Machine Details

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