A test piece, placed over a circular elastic diaphragm, is rigidly clamped at the periphery but free to bulge with the diaphragm. Hydraulic fluid is pumped at a constant rate, bulging the diaphragm until the test piece ruptures. The bursting strength of the test piece is the...
Pneumatic Clamping : Standard 2700 N or clamping for adjustable by mean of precise pressure regulator. A solenoid valve actuates the raising and lowering of the upper clamp.