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560RSS Digital Double Rockwell Hardness Tester

Product description:

1.Hardnessisoneoftheoften-usedmechaniccharacteristicsofthematerialwhilethehardnesstestingisanimportantmethodtojudgethequalityofthemetalmaterialoritscomponentparts.Thehardnessofthemetaliscorrespondenttoitsothermechaniccharacteristics,andsoits

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-560RSS Digital Double Rockwell Hardness Tester
1. Hardness is one of the often-used mechanic characteristics of the material while the hardness testing is an important method to judge the quality of the metal material or its component parts. The hardness of the metal is correspondent to its other mechanic characteristics, and so its mechanic characteristics such as the strength, tiredness, wriggling and wearing out can be tested out approximately through its hardness testing.
2. Digital Double Rockwell Hardness Tester with a novel and pleasing appearance, full functions, easy operation, clear and direct-viewing display, and stable performance is a high-tech and new product combining the mechanic and electric features. This tester is able to measure the Rockwell and superficial Rockwell hardness value with all scales. Its main function is as follows:
2.1 The Selection of all hardness scales for Rockwell and superficial Rockwell.
2.2 The hardness values exchange among various hardness scales.
2.3 The selection of dwell time for hardness test.
2.4 The revising of the value for year, month and date.
2.5 The RS232 serial communication is supplied to clients for the functional expansion.
The Present hardness tester with the storage function can be browsed the hardness testing page and output the hardness testing results with printer.
 
Technical Specifications
1. The Power Source and the Voltage:       AC220V±5%, 50-60 Hz
2. Time-delayed control:                 2-60 seconds, adjustable
3. The Max. Height of the Testing Specimen:            175 mm
4. The Distance from the Indenter Center to the Instrument Body:    165mm.
5. Overall Dimension (Length×Width×Height):     551×260×800 mm
6. The Net Weight of the Tester:                    80kg (Approx).

Rockwell Hardness
7. The Technical Specifications of Rockwell Hardness
Rockwell Hardness
Test Force Initial Test Force(N) 98.07(10kg) Tolerance±2.0%
Total Test Force(N) 588.4(60 kg) Tolerance±1.0%
980.7(100 kg)
1471(150kg)
Indenter Diamond Cone Indenter
Ф1.5875mm Ball Indenter
Scale HRA HRB HRC HRD HRE
HRF HRG HRH HRR HRM
HRP HRS HRK HRL HRV
 
8. The allowed tolerances of the Rockwell hardness displaying values
Scales Hardness Range of the 
Standard Hardness Blocks
Allowed Tolerance of
 Displaying Value
Allowed Repeatability of 
Displaying Value a
A (20~≤75)HRA ±2HRA ≤0.02(100-H)
 or 0.8 Rockwell unit b
(>75~≤88) HRA ±1.5HRA
B (20~≤)45HRB ±4HRB ≤0.04(130-H)
or 1.2 Rockwell unit b
(>45~≤80)HRB ±3HRB
(>80~≤100)HRB ±2HRB
C (20~≤70)HRC ±1.5HRC ≤0.02(100-H)
or 0.8 Rockwell unit b
a:H means average hardness value        b:select a larger value
 
Superficial Rockwell hardness
9. The technical specifications of superficial Rockwell hardness
Superficial Rockwell
Test Force 29.42(3 kg) Allowed Tolerance±2.0%
147.1(15 kg) Allowed Tolerance±1.0%
294.2(30 kg)
441.3(45 kg)
Indenter Diamond Cone Indenter
Ф1.5875mm Ball Indenter 
Scales HR15N、 HR30N 、 HR45N
HR15T、 HR30T 、 HR45T
HR15W、 HR30W、 HR45W
HR15X、 HR30X、 HR45X
HR15Y、 HR30Y、 HR45Y
 
10. The repeatability of the superficial Rockwell hardness displaying values and allowed tolerance of displaying value
Scales Hardness Range of the Standard Hardness Blocks Allowed Tolerance of Displaying Value Allowed Repeatability of Displaying Value a
15N (0~77)HR 15N ±2 HRN ≤0.04(100-H)or 
1.2 Rockwell unit b
(78~88)HR 15N
(89~91)HR 15N
30N (42~54)HR 30N
(55~73)HR 30N
(74~80)HR 30N
45N (20~31)HR 45N
(32~61)HR 45N
(63~70)HR 45N
15T (73~80)HR 15T ±3 HRT ≤0.06(100-H)or
2.4 Rockwell Unit b
(81~87)HR 15T
(88~93)HR 15T
30T (43~56)HR30T
(57~69)HR 30T
(70~82)HR 30T
45T (12~33)HR 45T
(34~54)HR 45T
(55~72)HR 45T
a:H means average hardness value
b:select a larger value