• 250T Press Machine



Press machine

Press machine

Open back press with fixed bed

Open back press with fixed bed

Punching press

Punching press

Punching machine

Punching machine

Punch press

Punch press

  • 01. Main technical parameters
  • Model: JH21-250B
    Normal pressure: 2500KN
    Stroke of normal force: 8mm
    Stroke of slider: 250mm
    Number of block (normal): 30 min-1
    Number of block (adjustable)(optional): 25-35 min-1
    Max. die height: 500mm
    Die height adjustment: 120mm
    Depth of throat: 420mm
    Bolster dimension (W*L): 800*1400mm
    Dimensions of recess in slide block (L*W):370*570mm
    Height of bolster: 170mm
    Dimensions of recess in slide block: 650*850mm
    Dimensions of recess in slide block: φ70×90mm
    Distance between uprights of frame: 960mm
    Model of motor: 1LG0207-6AB
    Motor power: 22KW
    Air pressure: 0.55Mpa
    Net weight: 24500kg
  • 02.Overall size of machine

  • A1: 1280mm; A2: 1400mm; A3: 1600mm; A4:1730mm; B1: 920mm; B2: 1200mm;
    B3: 2580mm; B4: 2800mm; H1: 920mm; H2: 500mm; H3:2305mm;
    H4:3775mm; H5:4085 mm.
  • 03. Principle and structure feature of press
  • This press adopts the crank and pitman mechanism, to make slide block moves up and down in frame guide ways and do punching work.
    The press adopts the vertical crankshaft structure and fixed bed type. The frame is welding with steel plate and has high rigidity. Driving system is installed into the frame, so the structure is compact and the contour is beautiful. Speedy gear is immersed in oil tank, the transmission is smooth and the noise is low. Using the combined pneumatic friction clutch and brake, the press is easy to install and maintain. The slide block is a foundry box that is installed an overload protector, a die height adjusting mechanism and a digital indicator. Air balance cylinders balance the weight of slide block; meanwhile slide block runs along six-face rectangular guide ways to improve its moving precision.
    The electrical equipment has positive and negative function. It adopts Dual-safety valve and cam controller to ensure operating safety.
    Using both-hands button or foot pedal switch, the press can realize continuous, single and inch modes.