USED KRAMATORSK 4-rolls

4-rolls Kramatorsk plate bending machine

Ultimate tensile strength of material: 500 MPa (50 kg/mm²)
Yield strength – cold bending: 250 MPa (25 kg/mm²)
Yield strength – hot bending (primary): 100 MPa (10 kg/mm²)
Yield strength – hot forming (secondary heating): 45 MPa (4.5 kg/mm²)
Elongation at cold state: ±18%
Maximum sheet width: 4000 mm
Max sheet thickness – cold, without pre-bend: 71 mm
Max sheet thickness – cold, with pre-bending: 63 mm
Max sheet thickness – hot forming: 150 mm
Minimum bending radius – cold: 560 mm
Minimum bending radius – hot: 600 mm
Maximum radius for closed bending (curled edge): 1000 mm
Main motor: 160 kW
Weight: 730 tons