PHR Series Chain Clamp Rockwell Hardness Tester

Model: PHR-16
Initial Test Force: 10 kgf
Dimension: 700x270x470mm
Testing Resolution: 0.5HR


PHR Chain Clamp Rockwell Hardness Tester which can test the hardness of cylindrical workpieces   such as pipes, shafts, rollers accurately on-site. 

The test principle and accuracy comply to standard ISO 6508 and ASTM E110. 

Tested by National Institute of Metrology with tolerance <1.5HRC, equivalent to bench hardness tester. 

So this kind of manual Rockwell hardness tester is usually used for manufacturing inspection and acceptance inspection to replace Leeb hardness tester with lower accuracy.


On-site testing the hardness of large pipes and shafts accurately on-site.

Anvils testing various dimensions and shapes work piece by using different anvils.

Application Chain fastened around the work piece before the force is applied.

Relevant Standards Comply to standard ISO 6508 and ASTM E18, E110

Indenter Indention inspected by standard Rockwell hardness tester

Technical Specifications

Commodity Chain Clamp Rockwell Hardness Tester
Model PHR-16 PHR-32 PHR-64
Code# 812-413 812-423 812-433
Dia 200-- 400mm 400-800mm 800-1600mm
Initial Test Force 10 kgf
Total Test Force 60 kgf, 100 kgf, 150 kgf
Force Applying Method By Screw
Test Head 120°Diamond Indenter
1.588 mm carbide alloy ball
Testing Resolution 0.5HR
Accuracy Meets the requirements of ISO6508ASTM E 18
Test Range HRA, HRB, HRC, etc. 15 scales.
Dimension 700x270x470mm 700x270x470mm 700x270x470mm
Weight/ Weight/ Gross Weight 4.8kg/13kg 6.8kg/15kg 11.5kg/23kg
Application Range All metals including iron, steel copper, aluminium, etc.

Standard Delivery:

Commodity  Code# Commodity Code#
Instrument Main Body ------ Rockwell Hardness Block 812-641
120° Diamond Indenter 812-401 1.588 mm Carbide Alloy Ball Indenter 812-411
Carrying Case 812-901 Flat Anvil ------
Spare Magnifier ------ V Anvil ------
Warranty Card / Qualified Certificate ------ Operation Manual /Packing List ------

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