Description
Rockwell Hardness Tester/Hardness Tester
This new rockwell hardness tester is ergonomically designed to bring the user the greatest degree of precision and versatility. The ZRK-3 hardness tester is easy to operate using the guidelines of ASTM E-18 and offers unmatched repeatability in all of the standard rockwell hardness scales. Engineered for tough and rugged environments including heat treat shops, toolmaking, knifemaking workshops and inspection labs. The ZRK-3 is the new standard for ALL analog rockwell hardness testers to emulate.Features:
- Works on all standard Rockwell Hardness Scales including HRA, HRB, HRC, HRE, HRF among many others.
- Direct analog dial reading w/0.5HR Resolution
- Advanced design, easy to operate
- Engineered to obtain highly sensitive and accurate readings
- Perfect for laboratories, workshops, tool rooms, inspection labs, etc.
- Follows guidelines of ASTM E18
Minor Load | 10Kgf |
Major Load | 60Kgf, 100Kgf, 150Kgf |
Test Force Application | Dead Weight |
Test Force Control | Hydraulic Dashpot System |
Results Display | Analog Dial Gage |
Resolution | 0.5HR |
Vertical Capacity | 6.7 in. |
Throat Depth | 6.4 in. |
Height | 28.0 in. |
Width | 7.00 in. |
Depth | 20.0 in. |
Shipping Weight | 242 lbs. |
ZRK-3 Hardness Tester Accessories: Included
- C-scale Diamond Indenter
- 1/16″ Carbide Ball Indenter
- 3-HRC Test Blocks
- 1-HRB Test Block
- Test Table 5.87″ (150mm)
- Flat Anvil 2.5″ (63mm)
- Std. Vee Anvil
- Accessory Case
- Dust Cover
Options:
- NIST/ASTM certified hardness test blocks, indenters and combo kits are available.
Rockwell Hardness Tester Scale/Indenter/Weight load Chart:
Scale Symbol | Indenter Type Ball dimensions indicate diameter | Preliminary Force N (kgf) | Total Force N (kgf) | Typical Application |
A | 120° Diamond | 98.07 (10) | 588.4 (60) | Cemented carbides, thin steel and shallow case hardened steel |
B | Ball 1/16″ (1.588mm) | 98.07 (10) | 980.7 (100) | Copper alloys, soft steels, alum. Alloys, malleable iron, etc. |
C | 120° Diamond | 98.07 (10) | 1471 (150) | Steel, hard cast irons,pearltic malleable iron, titanium, deep case hardened steel & other material harder than HRB 100 |
D | 120° Diamond | 98.07 (10) | 980.7 (100 | Thin steel and medium case hardened steel and pearlitic malleable iron |
E | Ball – 1/8″ (3.175mm) | 98.07 (10) | 980.7 (100 | Cast iron, aluminum, magnesium alloys and bearing metals |
F | Ball – 1/16″ (1.588mm) | 98.07 (10) | 588.4 (60) | Annealed copper alloys, and thin, soft sheet metals |
G | Ball – 1/16″ (1.588mm) | 98.07 (10) | 1471 (150) | Malleable irons, copper-nickel-zinc and cupronickel alloys |
H | Ball – 1/8″ (3.175mm) | 98.07 (10) | 588.4 (60) | Aluminum, zinc and lead |
K | Ball – 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 |
L | Ball – 1/4″ (6.350mm) | 98.07 (10) | 588.4 (60) | |
M | Ball – 1/4″ (6.350mm) | 98.07 (10) | 980.7 (100) | |
P | Ball – 1/4″ (6.350mm) | 98.07 (10) | 1471 (150) | |
R | Ball – 1/2″ (12.70mm) | 98.07 (10) | 588.4 (60) | |
S | Ball – 1/2″ (12.70mm) | 98.07 (10) | 980.7 (100) | |
V | Ball – 1/2″ (12.70mm) | 98.07 (10) | 1471 (150) |