The 50KN Digital Valve Spring Compression Tester is developed and produced by our company, which is mainly used to test the strength of all kinds of valve springs and elastic components.The 50KN Digital Valve Spring Compression Tester can measure the test force of spring and elastic component under the certain deformation or remaining height and also can measure the remaining height or deformation of spring and elastic component under the certain test force.The testing machine is developed and produced according to the requirements of JB/T7796-2005 Tension and compression spring testing machines.