Model NO.: HRRD-150P
Measuring Range: HRC
Standard: ISO, ASTM
Hardness Display: Digital LCD Display
Data Output: RS232/Printer
Superficial Rockwell Scales: H15N, H30N, H45N, H15T, H30T, H45T
Instrument Throat: 130mm
Packing Weight: 95kg/85kg
HS Code: 9024102000
Type: Rockwell Hardness Tester
Preliminary Test Force: 29.4N(3kgf), 98.1N (10kgf)
Loading Control: Auto Loading
Execution Standard: ISO 6508,ASTM E18,JIS Z2245,GB/T230
Max Height of Specimen: 170mm
Packing Dimension: 625*430*900mm
Origin: Shanghai, China
1, Twin tester--Regular Rockwell & Rockwell Superficial hardness for metal and plastic material;
2, Horizontal Protrudent Indenter Design, also suitable for internal and external testing;.
3, Testing on surfaces difficult to reach. Testing internal surface of rings and tubes with diameters over 23mm;
4, Testing force is set automatically according to testing scale;
5, Provided with many features such as high measuring precision, wide measuring range with 30 Rockwell scales;
6, Measuring results digitally displaying and can be printed, or transmitted to external computer automatically by USB or RS-232 data output port;
7, Test value can be transformed to the value of HB, HV, HK and HR value;
8, The tester meeting all the following standard such as ISO 6508-2, ASTM E18.
Rockwell Series Application:
Rockwell B Scale HRB: Copper alloys, soft steels, aluminum alloys, malleable iron, etc.
Rockwell C Scale HRC: Steel, hard cast irons, pearlitic malleable iron, titanium, deep case hardened steel, and other materials harder than B100.
Rockwell A Scale HRA: Cemented carbides, thin steel, and shallow case-hardened steel.
When selecting a hardness tester for your application, it is important for you to consider the following:
Choose the correct test method based on the application.
Plan to use the highest test force and largest indenter possible. Consider the effects of the shape and dimensions of your test sample.
Answer these key questions:
1, What kind of hardness scale to be used?
2, What is the material to be tested, and is this material suitable to the type of test method you are considering?
3, How large is the part, component or specimen to be tested?
4, Is the test point difficult to reach?
5, What is the quantity of testing that will be done?
6, How accurate does your test result need to be?
7, What is your budget?
8, What is the required return on investment and do you have ways to measure reductions in costs- yields, throughput, operator efficiency?
9, What testing problems have you experienced in your current method?
10, How knowledgeable are the users of the tester?
Principle of Rockwell Test
The Rockwell test consists of measuring the additional depth to which a carbide ball or diamond penetrator is forced by a heavy (major) load beyond the depth of a previously applied light (minor) load (SET point).
The minor load is applied first and a SET position is established on the dial gauge or displacement sensor of the Rockwell tester. Then the major load is applied. Without moving the piece being tested, the major load is removed and, with the minor load still applied, the Rockwell hardness number is automatically indicated on the dial gauge or digital display.
The diamond penetrator is used for testing materials such as hardened steels and cemented carbides. The carbide ball penetrators, available with 1/16 inch, 1/8 inch, 1/4 inch, and 1/2 inch diameter, are used when testing materials such as steel-copper alloys, aluminum and plastics to name a few.
Rockwell testing falls into two categories: Regular Rockwell testing (e.g., C and B scales) and Rockwell superficial testing (e.g., 30 N and 30 T scales).
High Rockwell hardness numbers represent hard materials and low numbers soft materials.
|Product Name||Rockwell Hardness Tester||Superficial Rockwell |
|Twin Rockwell |
|Total test force||60Kgf(588.4N),|
|Rockwell Scales||HRA, HRB, HRC, HRD, HRE, HRF, HRG, |
HRH, HRK,HRL, HRM, HRP, HRR, HRS, HRV
|Superficial Rockwell |
|Twin Rockwell Scales||HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK,HRL, HRM, HRP, |
|Dwell Time||Adjustable 1-60s|
|Hardness Indication||High definition backlight LCD|
|Loading Control||Auto Loading/Dwell/Unloading|
|Max. Height Of |
|Power supply||AC 220V/50Hz;AC110V/60Hz|
|Execution Standard||GB/T230.2, JJS Z2245, EN-ISO 6508 , ASTM E-18|