Manually Operation Analog Rockwell Hardness Tester(HR-150A)

manually operation analog rockwell hardness tester can get result by reading on analog dial gause, no need electricity supply, wide using range

Product Details

Working principle of Rockwell hardness test:

The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. There are different scales, denoted by a single letter, that use different loads or indenters. The result is a dimensionless number noted as HRA, where A is the scale letter.

Model: HR-150A

Name: Manually operation analog rockwell hardness tester


1. Easy to operate, analog dial reading directly

2. Outstanding panting technology, long using life

3. One-time casted molding shell, stable structure and it is not easy to be out of shape.

4. Dead weight structure makes high stabilty working status.

Test range:

(20-88) HRA

(20-100) HRB

(20-70) HRC



Pre Load10Kgf
Major Load60Kgf, 100Kgf, 150Kgf
Test Force ApplicationDead Weight
Test Force ControlHydraulic Dashpot System
Results DisplayAnalog Dial Gauge
Vertical Capacity155mm
Throat Depth130mm

Application table:

Scale Symbol

Indenter Type
Ball dimensions indicate diameter

Preliminary Force
N (kgf)
Total Force
N (kgf)
Typical Application
ASpheroconical Diamond98.07 (10)588.4 (60)Cemented carbides, thin steel and shallow case hardened steel
BBall 1/16" (1.588mm)98.07 (10)980.7 (100)Copper alloys, soft steels, alum. Alloys, malleable iron, etc.
CSpheroconical Diamond98.07 (10)1471 (150)Steel, hard cast irons,pearltic malleable iron, titanium, deep case hardened steel & other material harder than HRB 100
DSpheroconical Diamond98.07 (10)980.7 (100Thin steel and medium case hardened steel and pearlitic malleable iron
EBall - 1/8" (3.175mm)98.07 (10)980.7 (100Cast iron, aluminum&magnesium alloys and bearing metals
FBall - 1/16" (1.588mm)98.07 (10)588.4 (60)Annealed copper alloys, and thin soft sheet metals
GBall - 1/16" (1.588mm)98.07 (10)1471 (150)Malleable irons, copper-nckel-zinc and cupronickel alloys
HBall - 1/8" (3.175mm)98.07 (10)588.4 (60)Aluminum, zinc and lead
KBall - 1/8" (3.175mm)98.07 (10)1471 (150)Bearing metals and other very soft or thin materials. Use smallest ball and heaviest load that does not give anvil effect
LBall - 1/4" (6.350mm)98.07 (10)588.4 (60)
MBall - 1/4" (6.350mm)98.07 (10)980.7 (100)
PBall - 1/4" (6.350mm)98.07 (10)1471 (150)
RBall - 1/2" (12.70mm)98.07 (10)588.4 (60)
SBall - 1/2" (12.70mm)98.07 (10)980.7 (100)
VBall - 1/2" (12.70mm)98.07 (10)1471 (150)

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