Ball Pressure Testing Device

This ball pressure tester is applicable to assess the heat resistance of electrical shell, external parts and plastics and rubber which are made of insulation materials. The test way is to put the specimen on the platform of consistant temperature,then add the ball to press the specimen, after 1 hour, get out the specimen and then put it into the cold water for about 10 seconds, then to measure the depressed value, the indentation diameter of the steel ball is no more than 2 mm.
Ball Pressure Testing Device