Performance testing machine GWB-60C

automaticfor sheet metaldigital

The digital cupping tester is mainly used in the test of metal sheets and thin strips. The automatic cupping testing machine can test the plastic deformation performance of the sheets and thin strips. The automatic cupping testing machine meets the requirement of international GB/T 4156-2007 "Metal Material Sheet and Thin Strip Erichsen Cupping Test”. : Adopting a hydraulic clamping and hydraulic stamping composite oil cylinder, the cupping tester automatically shuts down when a test sample has crack, so as to facilitate the observation of crack. With peak value memorizing function, the cupping tester can automatically memorize the maximal stamping force and the maximal deformation depth. A turning type clamp ensures the convenient replacement, assembling and disassembling of a punch and a test sample. Thickness of Steel Plate : Standard Cupping Test 0.1 -2mm (nonstandard cupping test 0.1-3mm) Max. cupping load (kN) : 60 Max. clamping load (kN) : 25 Max. of sheet material (mm) : 100 Max. stroke of punch (mm) : 60 Stroke of clamping piston (mm) : 19-21 Die spécification (mm) : Diameter of standard punch:o20=0.05 Aperture of standard cushion die: 27=0.05; (non-calibration production) Digital display resolution (mm) : 0.01 Digital display mode : By computer and software Display contents : Clamping force, stamping force, displacement, cupping value and velocity Control mode : automatic judgment and recording of cupping value Structural characteristics : Hydraulic servo System for clamping load and servo motor for cupping load with double Controls : 1 :