Impact Hardness Tester HPS

for testing of concrete with dense microstructure and the Brinell hardness of metals

The Impact Hardness Tester HPS functions dynamically. The ball impression is created by a blow. The impact energy is stored in a spring. The tester is pressed by hand against the sample and the spring thereby tensioned. When the setpoint is reached, the hammer is released and creates a permanent impression in the sample via the ball. The impression is measured using a measuring magnifier.

Intended purpose

The ball impact method permits direct testing of the concrete; it provides a large number of measured values with minimum effort without destroying the test specimen. The cube compressive strength of the concrete is then estimated from the diameters of the ball impressions made in the concrete sample to be tested.

The guidelines for performing this test are laid down in DIN 1048 Part 2. The tester is also used for testing metallic materials, in particular for the testing of large workpieces. The measured values obtained here are only comparative figures, but can be related to the Brinell hardness using conversion graphs.

Technical data

Impact effort: Can be set to 1.225 Joule and 4,90 Joule
Test ball diameter: 10 mm and 5 mm
Dimensions: 370 x 140 x 100 mm
Weight: 2 kg net, 8 kg gross

Accessories in tester case:

  • Measuring magnifier 10x 0 .. 10 mm measuring range
  • Hardness normal for adjusting the impact force
  • Replacement balls