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Optical Brinell Hardness Tester


Loads (kgf)

500 to 3000 in steps of 250

Initial load (kgf)


Max. test height x throat (mm)

380 x 200

Max. depth of elevating screw below base (mm)


Machine height (mm) approx


Size of base (mm) approx.

400 x 740

Net weight (kg)


Drive motor (hp)


Mains supply

3 Phase, 415V, 50Hz, A.C

Indentation measurement

By separate Or Built in Microscope



Testing table dia 200 mm

1 No.

Testing table dia 70 mm with “V” groove for round jobs dia 10 to 80 mm

1 No.

Ball holder dia 5 mm

1 No.

Ball holder dia 10 mm

1 No.

Test block HBW – 5 / 750

1 No.

Test block HBW – 10 / 3000

1 No.

Brinell microscope (25 x magnification)

1 No.

Allen key set

4 pieces

Brinell hardness tester, are designed for Brinell hardness measurement on steels and other ferrous materials and also on non ferrous materials like Brass, Bronze, Aluminum, etc. the material can be cast, forged or rolled and the shape can be flat, round irregular.

The actual load application system is of dead weight type combined with mechanical lever system. The supporting hydraulic system is for initial of load before each test and damping the load application system for smooth application of load.

A separate hydraulic power pack, positioned in the bottom part of the machine increase the machine stability.

Design of a floating fulcrum lever system ensures high accuracy and dependability.

The machine accuracies confirm to IS: 2281-2005 & BS: 240


  • The machine has a robust,C-type load frame & has been designed for production testing of cast or forged components like leaf springs, cam shafts, etc. for Brinell hardness value. This machine is suitable for foundries, engineering industry on production line.
  • Since most of the operations are fast and automatic, the test speed is high with less operator fatigue.
  • The cycle time (except loading / unloading) is about 12 seconds per test.
  • Load stages – 750 kgf and 3000 kgf.
  • Optical measuring equipment with 14 X magnification.
  • Job loading / unloading, push button operation, pushing cycle start, de-clamp buttons are only manual operations & rest all is automatic.
  • A push button is pressed for cycle start & hydraulic operations. After cycle time, impression is visible on screen, which (Diameter) is to be measured with the help of microscope of least count 0.01mm.
  • Computerized model is available .Computerized model has built in CCD and suitable advanced software. Hardness will be displayed On computer monitor automatically. Results printout can be taken.
  • Accuracy conforming to IS:2281.

Test Cycle

  • Start machine by ON push button. The clamping piston goes to bottom position and loading piston with indentor goes to the top position and the indentor shifts to indexed (fitted) position
  • Push the cycle start button. The bottom piston moves up and the job is clamped against the clamping cone with a force of 500 kg.Then the loading piston moves down. The indentor shifts to its vertical position and the set load is applied on the test piece a light signal is provided which glows when the load is applied. The applied load is kept constant for a pre set time. Then the loading piston moves up and the indentor is indexed so that the impression is visible on the screen. Measure the impression by the micrometer.
  • Push the de-clamp button.
  • Unload the job and machine is ready for next test.

(Dimensions and Photographs are for reference pupose only there may be variation at the time of supply due to constant R &D)

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