- Adhesion Testers
- Bolt Tension Monitors
- Coating Thickness Gauges & Inspection Equipment
- Dewpoint Meters
- Ferrite Meters
- Force Gauges
- Gloss meters
- Hardness Testers
- Hire Equipment
- Intrinsically Safe Phones and Computers
- MPI Magnetic Particle Inspection
- Shore Durometers
- Surface Roughness Testers
- Ultrasonic Thickness Gauges
Portable metal hardness testers provide fast and accurate on site measurements. The DMV UK range of hardness testers includes dynamic rebound (Leeb), Rockwell and UCI (Ultrasonic Contact Impedance) type testers and a selection of probes to cover a wide range of applications. Hardness values are displayed in various scales including Vickers, Brinell and Rockwell.
Our Range of Hardness Testers
The MH600 is an advanced Leeb type portable hardness tester with special features including : colour TFT display, automatic detection of probe direction, IP65 protection rating & high / low tolerance alarm. Software and cable are included.
The dynaROCK II works according to the Leeb rebound hardness test method for metallic materials. It is made in Germany by BAQ GmbH. Supplied with test block, impact device D, data transfer software and test certificate.
The alphaDUR mini UCI hardness tester provides fast and accurate test results and is useful for measuring the hardness of test objects that are too small or thin for other types of portable hardness tester. It is made in Germany by BAQ GmbH.
The Equotip 550 Leeb & Rockwell is a rugged and versatile portable metal hardness tester, which is suitable for most metals. It offers unmatched ease of operation and has a large and clear display integrated in a specially designed housing for on-site usa
portable testers with the best repetition rate and the greatest accuracy on the market. Equotip Bambino 2 is particularly suitable for quick and easy on-site hardness checks. Equotip Piccolo 2 offers advanced measurement statistics and Piccolink software
PORTABLE HARDNESS TESTER GUIDE There are three main types of portable metal hardness tester available – Dynamic Rebound (Leeb), Rockwell and Ultrasonic Contact Impedance (UCI). Dynamic rebound testers project a spring loaded impact body with a spherical tip towards the test object at a defined velocity. The impact creates a plastic deformation of the surface which causes the impact body to rebound at a slower speed. This loss of velocity is measured by the passage of the impact device through a magnetic coil and this produces a Leeb hardness value (HLD) which the instrument can convert to hardness scales HRB, HRC, HV, HB etc. Modern portable rebound testers can produce fast and accurate results and are particularly suitable for use on solid heavy components, coarse grained materials and thick walled tubing. Rockwell hardness is a static test where the penetration depth of a diamond cone indenter is measured at 2 defined loads. It can be used on a wide variety of applications such as small, light, thin, walled or tubular test objects, and large and heavy objects where the surface roughness and grain size are small enough. Test objects need to be least 10 times the thickness of the indenter penetration depth. UCI hardness testers are not restricted to large mass items and can be used on smaller, thinner walled components and on finer grained materials. These instruments apply a known force to a Vickers diamond which is attached to the end of a metal rod which oscillates longitudinally. The diagonals of the resulting indentation are evaluated electronically by measuring the ultrasonic frequency shift which is proportional to the size of the indentation. The difference in ultrasonic vibration frequency is then converted to hardness scales such as Vickers, Rockwell or Brinell etc.