1.Introduction

The microcomputer controlled electro hydraulic servo cupping tester is mainly used for testing the process performance of metal sheet and strip, and testing the plastic deformation performance of sheet metal and thin strip. The composite oil cylinder with hydraulic clamping and hydraulic stamping is used to automatically stop the cracks, and it has the function of peak memory, that is, the maximum pressure and the maximum deformation depth automatically memory; the flip clamp, the punch and the sample are replaced and the loading and unloading are convenient.

 2.Main technical parameters

Max Test force	60KN
Test force level	Grade 1
Test range	2%-100%FS
Relative error of test force	±1%
Speed	2-100mm/min
Standard punch diameter	Ф20±0.5
Specimen thickness	0.05-2mm
Max Punch stroke	40mm
Clamping piston stroke	40mm
Max. punching load	60KN
Max. clamping load	10KN