HBRVD-187.5 Digital Brinell ,rockwell and vickers hardness tester - HBRVD-187.5 Digital Brinell ,rock...

HBRVD-187.5 Digital Brinell & Rockwell &Vickers Hardness Tester

Model HBRVD-187.5 digital Brinell ,rockwell and vickers hardness tester has intuitive LCD and microcomputer control system, so that hardness testing can be automatically operated . The machine built-in printer is to record the entire testing process of the main technical data. In addition to test hand-lift, the full realization of the test force imposing, removable, hardness value direct shows and other automated operation is achieved. The machine has high accuracy, eliminating the human operational error, is an integration of mechanical and electrical of high-tech and advanced hardness testing equipment. Therefore, the test machine with high precision, easy operation, high sensitivity, convenient use, reliable variable-Dutch, showing the stable value, is widely used in factory workshops, laboratories, universities and research institutions.

Main technical parameters

The preliminary Test Force (N) 98

Total Test Force

Vickers hardness test (N) 294,588,980

Rockwell hardness test (N) 588, 980, 1471

Brinell hardness test (N) 306, 613, 1839

Microscope magnification 37.5 ×, 75 ×

Hardness readings Indication mode LCD

Measuring eyepiece Automatic Digital encoder

Hardness Indication minimum division (HR) 0.1

Total test foce loading keeping time (s) 1-60

Max height of test piece (mm) 180 (Rockwell) 135 (Vickers, Brinell)

Depth of throat (mm) 140

Dimension (mm) 463 × 215 × 700

Supply Voltage AC220V

Source Voltage 5V/5W

Instrument Weight (kg) 75

Hardness test range

Rockwell Hardness Test

(70-85) HRA

(30-100) HRB

(20-67) HRC

Indication Accuracy ± 1HR

Indication Repeatability 0.8HR

Brinell hardness Test

(8-650) HB

Indication accuracy (δ /%) ± 2.5 shows the value of repeatability (Hcf /%) ≤ 3.0

Vickers hardness test

(14-1000) HV

Shows the value of precision (δ /%) ± 2 shows the value of repeatability (Hcf /%) ≤ 2.5