Erichsen Cupping Testing Machine
  • ● Constant punching speed control, testing speed variable

    ● Constant clamping force by the Servo hydraulic cylinder, no slippage during the test
    ● High precision load cell for force measuring
    ● Photoelectric encoder for measuring the displacement of punching head
    ● High control accuracy and fast response to stop the punching head instantly
    ● Dual servo systems (punching & constant clamping force) integrated in one machine
    ● High automation: After setting the test parameter, the testing can be done with onclick.

  • Model

    GBW-100M

    GBW-100A

    GBW-300A

    Max. Cupping Load

    100KN

    100KN

    300KN

    Load accuracy

    ±0.5%

    Stroke speed

    0.005-250mm/min

    Speed accuracy

    ±0.5%

    Thickness of sheet

    0.1-2mm (standard) 2.0-3.0mm (non-standard)

    0.1-2mm (standard) 2.0-5.0mm (non-standard)

    Max. of sheet material

    110mm

    140mm

    Die specification

    Punch ball: φ20±0.05mm Pattern Hole: φ33±0.1mm Fixed pattern hole: φ27±0.05mm

    Punch ball: φ20±0.05mm Pattern Hole: φ27±0.05mm Fixed pattern hole: φ33±0.1mm

    Non-standard Die specification

    Punch ball: φ20, φ15, φ8mm Pattern Hole: φ40, φ21, φ11mm Fixed pattern hole: φ33, φ18, φ10mm

    Punch ball: φ20, φ15, φ8mm Pattern Hole: φ40, φ21, φ11mm Fixed pattern hole: φ33, φ18, φ10mm

    Max. Clamping load

    10kN manual

    10kN close-loop

    10kN close-loop

    Cupping value resolution

    0.01mm

Model: GBW Series
Description:
GBW series Erichsen Cupping Testing Machine is designed on the basis of screw universal material testing machine. The Erichsen Cupping Tester is suitable for cupping test of metal sheet and strip steel rolled stock etc to evaluate the plastic deformation performance and ductility. The cupping test for metal sheet thickness range is 0.1mm to 5mm, Max. punching capacity is 300KN, and the pre-tightening device is optional either with hydraulic servo loading pump or manual loading pump.