Order Intelligent Programmed Digital Display Universal Hardness Tester 14~1000HV



HBMRRV(M)-250JMT     Intelligent Programmed Digital Display Universal Hardness Tester


Main Features

  • It has three hardness test methods of Brinell, Rockwell, and Vickers.
  • Chinese and English menus, large digital LCD screen, rich menu content, and complete functions.
  • Automatic loading and unloading of load, simple operation, a high degree of automation.
  • Hardness automatic display, high accuracy, small indication resolution, no artificial operation error.
  • It can automatically identify the minimum thickness of specimens and has a super-domain warning system.
  • Automatic conversion among various hardness.
  • It has three national intellectual property rights.

Application Range

  • Rockwell: It is used to measure Rockwell hardness of ferrous, nonferrous metals and nonmetallic materials. It is suitable for measuring Rockwell hardness of heat treatment materials such as quenching and modulation.
  • Vickers: Ceramics, steel, non-ferrous metals, non-metallic materials, carburizing layer, nitriding layer, electroplating layer. It is suitable for measurement of hardened layer and ultra-thin parts.
  • Brinell: It is used to measure Brinell hardness of ferrous metals, nonferrous metals, nonferrous alloys, and powder metallurgy materials. It is widely used in metallurgy, forging, casting, bearing alloys.


Main Technical Parameters

Items ModalHBMRRV(M)-250JMTStandard Configuration
Hardness ScaleRockwell:A, B, C, D, E, F, G, H, K, L,

M, P, R, S, V, N, T, W, X, Y


HBW2.5/31.25, ,HBW2.5/62.5,





HV30,HV50, HV100

15X Electronic Micrometer Eyepiece


Large Flat Test Bench 1

Small Flat Test Bench 1

V-type Test Bench   1

Slide Carriage 

Test Bench         1

Foot Screw          4

Power Cord        1

Diamond Rockwell Indenter 1

Diamond Vickers Indenter  1

Φ1.588 Tungsten

Carbide Ball Indenter 1

Φ2.5 Tungsten

Carbide Ball Indenter 1

Φ5 Tungsten

Carbide Ball Indenter     1

Hardness Block      5

Objective Lens (HBRV(M)-187.5D1)

2.5X Objective Lens      1

5X Objective Lens   1

Objective Lens(HMRV(M)-45D1)

5X Objective Lens   1

10X Objective Lens   1

Optional Accessories

Φ10mm Miniature

Flat Test Bench

Φ10mm Miniature

V Flat Test Bench 

Hardness Blocks

of Other Specifications

Test ForceKgf:3, 5, 6.25, 10,15, 15.625, 20, 30, 31.25,

45,50, 60, 62.5, 100, 125, 150, 187.5, 250

N:  294, 306, 588, 613, 980, 1471, 1839

15, 30, 45

147, 294, 441

Measuring Range20~88HRA,











70~100HRE, 50~115HRL, 50~115HRM,


Magnification of Measurement System37.5X(2.5x objective lens )75X(5x objective lens )75X(5x objective lens ),150X(10x objective lens )
Measurement Resolution of Microscope0.5μm(37.5X),




Indication Resolution0.1 hardness unit
Indication AccuracyIt conforms to GB/T 230.2, IS0 6508;

GB/T4340.2, ISO-6507;  GB/T231.2,  ISO 6506

LCD Display ContentHardness Value, Hardness Scale,

Total Test Force, Keeping Time, Field Temperature,

Upper and Lower Limits, Measurement Times, Average Value

Duration of Test ForceAdjustable in 1-99 seconds
Max Height of Specimen195mm(Rockwell),

145mm( Vickers,  Brinell )

Distance from Center of Indenter to Machine Wall140mm
OutputBuilt-in Micro Printer,

RS232 Serial Interface.

Voltage Supply220V/50-60HZ
External DimensionsLength* Width * Height 520*175*700mm
WeightNet weight :80kg, Gross weight :97kg



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