1.Introduction

The cupping testing machine is specially used to test extensibility of metal thin sheet and banded material and is the only instrument to test the metal ’ s plastic deformation.The compound oil cylinder adopt hydraulic clamping, hydraulic press. Automatically parking when cracking appearing , easy to observe crack; Have the function of remember the peak--the  maximum pressure, maximum deformation flaring depth. Tilting fixtures, the punch and sample replacement, loading and unloading convenient Type GBS-60B for digital display semi-automatic Cupping Testing Machine, manual adjust the test rate, adopt grating measure the displacement. Single-chip computer record, operational data and judge the park.

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