Hardness is one of the important mechanic characteristics of the material while the hardness testing is the most quickly and economic testing method，as well as an important method to judge the quality of the metal material or its component parts. The mechanic characteristics of most metal materials such as the strength, tiredness, wriggling and wearing out can be tested out approximately through its hardness testing.

The Motorized Brinell Rockwell & Vickers Hardness Tester, a multi-functional hardness tester with Brinell, Rockwell &Vickers 3 kinds of testing methods and 7 steps testing force will meet the needs of many kinds of hardness measurement. The instrument is adopted automatic shifter to load, dwell and unload testing force, therefore the operation for this instrument is simple, easy and quickly.

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Technical specifications

  1.  The Initial Test Force: 98.07N (10Kg); Tolerance: ± 2.0%
  2.  The Tolerance of Total Test Force: ± 1.0%
    2.1   The Test Force of Brinell Hardness:  294.2N(30kg), 306.5N (31.25kg), 612.9N (62.5kg),
    980.7N(100kg), 1893N(187.5kg)
    2.2   The Test Force of Rockwell Hardness:  588.4N (60kg), 980.7N (100kg), 1471N(150kg)
    2.3   The Test Force of Vickers Hardness:  294.2N (30Kg), 980.7N (100Kg)
  3.   The Indenter Specifications:
    3.1   The diamond Rockwell indenter
    3.2   The diamond Vickers indenter
    3.3   The φ1.5875 mm, φ2.5 mm, φ5 mm ball indenter
  4.  The Power Source and the Voltage:  AC220V±5%, 50-60 HZ
  5.  Time-delayed control:  2-60 seconds, can be adjusted
  6.  The Distance from the Indenter Central Point to the Instrument Body:  165mm.
  7.  The Max. Height of the Specimen:
    7.1   For Rockwell Hardness:  175mm
    7.2   For Brinell Hardness:  100mm
    7.3   For Vickers Hardness:  115mm
  8.  The Amplification of Objective:  37.5×;  75×
  9.  The Overall Dimension of Hardness Tester(Length×Width×Height): 520×215×700mm
  10.  The Total Weight of the Tester:  78kg

Rockwell Hardness

The Tolerance of Rockwell Hardness Display Value

Hardness Scale Hardness Range of The Standard Testing Blocks The Max. Tolerance of Hardness Display Value
HRA 20～≤75HRA ±2HRA
>75～≤88HRA ±1.5HRA
HRB 20～≤45HRB ±4HRB
>45～≤80HRB ±3HRB
>80～≤100HRB ±2HRB
HRC 20～≤70HRC ±1.5HRC

Brinell Hardness

The repetition and tolerance of displayed Value for Brinell hardness tester

Hardness Value of Standard Testing Blocks (HBW) Tolerance of Displayed Value (%) Repetition of Displayed Value (%)
≤125 ±3 ≤3
125＜HBW≤125 ±2.5 ≤2.5
＞225 ±2 ≤2

 

Vickers Hardness

The Tolerance and Repetition of Displayed Value for Vickers Hardness Tester

Tolerance of Displayed Value Repetition of Displayed Value
Hardness Scale Displayed Value of Hardness Test Block Tolerance of Displayed Value Displayed Value of Hardness Test Block Repetition of Displayed Value
HV30

HV100

 ≤250HV ±3% ≤225HV 6%
300~1000HV ±2% ＞225HV 4%

 

Accessories (The Packing List )

Accessories Kit of Main Tester Body

No. Description of Goods Quantity
1 Diamond Rockwell Indenter 1 PC
2 ф1.5875mm Ball Indenter 1 PC
3 Large Testing Table; Medium Testing Table; “V” Shaped Testing Table Total 3 PCS
4 Standard Rockwell Hardness Block:

HRC ( High); HRC(Lower); HRB

 Each 1 PC
5 Weight 0, 1, 2, 3, 4 Total 5 PCS
6 Power Cord 1 PC
7 Fuse 2A  2 PCS
8 Level 1 PC
9 Horizontal Regulating Screw 4 PCS
10 Screwdriver; Spanner Each 1 PC
11 Nylon Anti-dust Bag 1 PC
12 Instruction Manual 1 PC
13 Check List of Vickers Hardness 1 PC
14 Check List of Brinell Hardness 1 PC

Accessories Kit of Microscope

No. Description of Goods
1 Seat of Microscope (with Inside Light) 1 PC
2 Eyepiece 1 PC
3 2.5╳ Objective 1 PC
4 5╳ Objective 1 PC
5 Slipped Testing Table 1 PC
6 Outside Light 1 PC
7 Diamond Vickers Indenter 1 PC
8 ф2.5mm, ф5mm Ball Indenter Total 2 PCS
9 Standard Vickers Hardness Block(HV30) 1 PC
10 Standard Brinell Hardness Block(HBW/2.5/187.5) 1 PC

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