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.

Features

• 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.

Specification