Tel : + 27 11 704 7001 / 5 / 8
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Impact Instruments was established in 2004 as an importer, agent and or distributor for several leading, international brands. Our territory covers South Africa and surrounding SADC countries, where agreements permit. With more than thirty years combined industry experience, we provide technical solutions and believe in not only selling equipment but ensuring that users are product and application trained. We guarantee high quality products and an outstanding level of service at all times. Should you not find what you are looking for, please contact us directly.

Portable Hardness Testers for Steel

Leeb and UCI Hardness Testers


QH2 Portable Leeb Hardness Tester 

QH2 samples

QH25 year warranty


Applications :


  • Hardness in steel, cast steel, alloys steel and stainless
  • Measure large parts in-situ
  • Conduct checks in production
  • Verify finished products
  • Classify materials
  • Identify material types


Kit includes : 

QH2 hardness tester, type D impact device, quick users guide, high impact carrying case, USB cable, DMQ DataCenter software

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QH5 Leeb, Brinell, Rockwell, Vickers Metal Hardness Tester 

QH 5 samples

 QH5 5 year warranty

Uses Cal-Tag Technology to automatically identify which impact device is connected. 

Complies to : Meets ASTM A-956 standards


Applications :


  • Identify and classify materials
  • Conduct tests during production
  • Check large or heavy parts on-site
  • Measure flat and curved surfaces


Three models to choose from : 


DMQ  model D or DC 

Uses impact devices D or DC 


DMQ Model M 

Uses impact devices D, DC, C, DL and G 


DMQ Model G

Uses impact device G impact only
To measure hardness in massive, founded and or forged parts with rough surface finishes. 


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QH5U Ultrasonic Contact Impedance (UCI) Metal Hardness Tester 

QH5 U samplesGear teeth

QH5 U5 year warranty

Using the Ultrasonic Contact Impedance (UCI) method. 

Conversions by E 140 and DIN 50150 standards

Complies to : DIN 50159 and ASTM A1038

Features : 

  • Diamond pyramid tip
  • No indentation
  • No part damage 


Applications :


  • Thin parts
  • Flat and curved surfaces
  • Gear teeth
  • Tubes and pipes
  • Weld heat affected zones


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QH7 Heavy Duty Leeb and UCI Metal Hardness Tester 

qh7 samples

QH7 Hardness Tester bluetooth 2

Complies to ASTM A-956 & ASTM E-140 standards


Applications : 


  • Heavy solid parts
  • Founded or forged steel as well as aluminum alloys
  • Weld Heat Affected Zones
  • Tubes and pipes
  • Bars
  • Metal plates and sheet metal coils
  • Non-homogenous surfaces
  • Thin parts


Three models to choose from : 


QH7 L Metal Hardness Tester 

 QH7 LEEB5 year warranty

Uses impact devices D, DC, C, DL and G.


QH7 U (UCI) Metal Hardness Tester

QH7 UCI5 year warranty

Uses UCI 10N or 50N probes.


QH7 C Combined Leeb and UCI 

QH7 LEEB UCI5 year warranty

Uses impact device and or UCI probe.

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