MASHPROJECT

St.Petersburg

phone/fax: (812) 337-55-47

phone: (812) 939-34-58

control3@mail.wplus.net



Рабочий контроль

Russian Russian


Metrological support of portable hardness testers, their development, production and introduction are the main lines of activities of the MASHPROJEKT-St.Petersburg

Portable ultrasonic hardness tester TKM-459

TKM-459 portable ultrasonic hardness tester

It is intended for measuring hardness of metal and alloy articles by Rockwell, Brinell, and Vickers scales as well as for determination of the rupture strength limit. Is consists of the ultra-sound transducer (sensor) and the electronic module. The principle of the tester operation is based on determination of frequency change in free oscillation of the indentor (an acoustic resonator with Vickers diamond pyramid) subjected to the constant force of 50 N.

Dynamic portable  hardness tester TKM-359

TKM-359 portable dynamic hardness tester

It is intended for measuring hardness of metal and alloy articles by Rockwell, Brinell, Vickers, Shore D and other scales. It consists of the dynamic transducer (sensor) and the electronic module. The principle of the tester operation is based on determining velocity ratio of the indentor (the impact component with hard-alloy spherical tip) before and after striking the surface of the article being tested.


The hardness testers developed and produced by MASHPROJECT-St.Petersburg are high-precision new generation portable hardness testers. Their precision of measurement is ensured by transfer of Brinell, Rockwell and Vickers hardness scales with minimum of errors from the State hardness standards directly to the portable hardness tester skipping intermediate links of the state measurement chain.

portable ultrasonic hardness testers, portable dynamic hardness testers

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