Application:

HR-150A manual Rockwell hardness tester is a widely-used hardness testing instrument to measure the Rockwell hardness of the materials. The speed of loading the test force is regulated by the buffer whereas the change of the test force is made by rotating the carriage-changing hand-wheel. The operation of the present instrument is simple, its functions are stable, and its use is, therefore, widely spread.

HR-150DT Motorized Rockwell Hardness Tester adopts a mechanism to automatically load and unload the test force, rotated the Load-Change Hand Wheel to exchange test force, therefore the operation for this instrument is very simple, easy and prompt. Besides setting zero to dial, there is no man made error. The instrument is with high sensitivity and stability, so as suitable for usage in workshop and testing laboratory.

HRS-150 Digital Rockwell Hardness Tester adopts novel-designed large LCD screen to display, as well as menu structure. It mainly functions are as follows:1. Selection of Rockwell hardness scales,2. Exchange hardness values among hardness scales, 3. Output the results of hardness measurement with printer,4. RS-232 hyper terminal setting is with good reliability, excellent operation and easy watching. Surface hardened steel, surface heat treating and chemical treating materials, copper, aluminum alloy sheet, zinc layers, chrome layers, tin layers, bearing steel, cold and hard casting parts etc.

Technical specifications

1.  The initial test force:   98.07N(10kg)

2.  The Total Test force:   588.4N(60kg),  980.7N(100kg),  1471N(150kg)

3.  The specifications of the indenter:

3.1  Diamond Rockwell indenter

3.2  Ball indenter ∮1.588mm

4.  Rockwell hardness testing range:  (20~88) HRA, (20~100) HRB       (20~70) HRC

5.  The max height of the specimens:   170mm

6.  The distance from the center of the indenter to the instrument body:  165mm

7.  Package dimension:                655 × 375 ×960mm

8.  The total weight:                    78kg

9.  Scale, Indenter, Test Force and Application Field of the Rockwell Test