Depth Throat 135mm Basic Manual Rockwell Hardness Testing Machine
with Resolution 0.5HR
Applications:
● HRA is widely used to measure hardness of carbide alloy, quenched
hardening steel after carbonized, hardened thin steel strip and
plate, etc.
For materials HRC > 67, it is more likely to damage the diamond
indenter if we use 1471 test force. For those materials, we had
better choose HRC hardness scale which has small test force and
indentation.
● HRB is suitable to test medium hardness materials such as low and
medium carbon steel after annealing treatment, malleable iron, all
kinds of brass, bronze, hard aluminum alloy after solution
treatment and so on.
The applicable scope is 20~100 HRB. when the material hardness is
under 20HV, on account of the creep of metal the specimen
deformation will last for a long time under the test force.
The needle on indicator dial or optical projection scale moves
slowly, causing difficulty in measuring precision. While when the
material hardness exceeds 100 HV, the shallow indentation depth
decreases sensitivity affecting measuring precision.
● HRC is most applicable to testing carbon steel after quenching or
low tempering, alloy steel, tool steel, die steel, as well as
chilled cast iron, titanium alloy and so on. Generally, we apply
HRC scale to test materials HRB>100, and HRB scale to test
materials HRC<20 avoiding influence caused by glide of indenter.
Technical Specifications:
| Product name | Manual Rockwell Hardness Tester |
| Model | XRock-S304 |
| Measuring range | 20-88HRA, 20-100HRB, 20-70HRC |
| Dial pointer range | A,C (black):0-100; B(red): 30-130 |
| Preliminary test force | 10kgf (98.07N) |
| Rockwell test force | 60Kgf(558.4N), 100Kgf(980.7N), 150Kgf(1471N) |
| Hardness indication | Dial Reading |
| Resolution | 0.5HR |
| Loading control | manual |
| Max height of specimen | 170mm |
| Instrument throat | 135mm |
| Dimension | 470 x 240 x 630mm |
| Packing dimension | 540 x 420 x 700mm |
| Gross/ Net weight | 65Kg/56Kg |
| Execution standard | GB/T230.2, JIS Z2245, EN-ISO 6508 , ASTME-18 |
Standard Delivery:
| Instrument main body | Ø1.588mm ball indenterl | Weight A |
| Ø58mm V-shape anvil | Ø1.588mm Steel ball | Weight B |
| Hardness block | Cone diamond indenter | Weight C |
| Anti-dust cover | Ø150mm Flat anvil | Accessory box |
| Warranty card | Qualified certificate | Instrument manual |
Brief Introduction:
Rockwell hardness tester is a mechanical manual test with beautiful
appearance design, reasonable casting structure, stable
performance, high durability and high precision.
XRock-S304 is especially suitable for heat treatment and mold processing
workshop. It is easy to operate and suitable for large parts. High
stroke, lever loading, manual operation.
XRock-S304 can measure the Rockwell hardness of hard alloy, hardened steel
and unhardened steel. Due to its high fuselage, it can be used for
hardness testing of large workpieces, and is widely used in
machining, automobile manufacturing and repairing units.
