PHR-4-3 C clamp Rockwell hardness tester is designed according to the basic principle of Rockwell hardness test. The principle and structure of this kind of hardness tester is in accordance with the American Standard ASTM E110.
Compared with small type, C clamp Rockwell hardness tester applies part clamping structure and similar reading system as micrometer, so it is prior to small type for its good stability, repeatability, accuracy.
It is small, light, accurate portable hardness tester. It consists of C- shape frame, screw arbor, and test head. It could test flat or curve parts as long as the parts could be clamped and the test surface erects the test head. It could be applied in production inspection and acceptance inspection to replace low accurate Leeb hardness tester.
PHR-4-3 C Clamp Rockwell Hardness Tester Operation Video
Technical Parameters of PHR-4-3 C Clamp Rockwell Hardness Tester
Preliminary test force:10 kgf
Total test Force: 60 kgf, 100 kgf, 150 kgf
Test head: 120°diamond indenter
1.588mm carbide ball
Indication Error: complying with ISO 6508 and ASTM E18
Repeatability Error: complying with ISO 6508 and ASTM E18
Test Resolution: 0.5HR
Application range: common metal including iron and steel,cooper, aluminum,
Package of PHR-4-3 C Clamp Rockwell Hardness Tester