Portable hardness tester
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Portable hardness tester

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L / 119 , G. I. D. C.
Industrial Town Ship,
Odhav, Ahmedabad.
Gujarat (India)

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Optional Impact Devices


Optional Impact Devices

D    DC    DL    C    D+15    G

Technical Specifications
Application range of Impact Device D type general pieces DC type for hole or Cylinder DL type for long and marrow channel or hole D+15 type for measuring in grooves or recessed surface C type for measuring light and small piece and surface hardness layer G type for measuring heavy and rough cast and forged pieces
Impact Device D/DC/DL D=15 C G
Impacting energy 11mj 11mj 2.7mj 90mj
Mass of impact body 5.5g/5.5g/7.3g 7.8g 3.0g 20g
Hardness of spherical test tip 1600HV 1600HV 1600HV 1600HV
Diameter of spherical test tip 3mm 3mm 3mm 5mm
Material of spherical test tip Tungsten carbide Tungsten carbide Tungsten carbide Tungsten carbide
Diameter of Impact Device 20mm 20mm 20mm 30mm
Length of Impact Device 147/86mm/75mm 162mm 141mm 254mm
Weight of Impact Device 50g 80g 75g 250g
Max. hardness of workpiece 940/940/950HV 940HV 1000HV 650HB
Average surface roughness of the test piece Ra: 1.6 um Ra: 1.6 um Ra: 0.4 um Ra: 6.3 um
Min. weight of test piece Direct measuring 5kg 5kg 1.5kg 15kg
on stable support 2kg 2kg 0.5kg 5kg
with compact coupling 0.05kg 0.1kg 0.02kg 0.5kg
Min. thickness of test piece Compact coupling 5mm 5mm 1mm 10mm
Min. case hardened depth 0.8mm 0.8mm 0.2mm 1.2mm

 Size of indentation of spherical test tip

Hardness 300 HV Indentation diameter 0.54mm 0.54mm 0.38mm 1.03mm
Indentation depth 24 um 24 um 12 um 53 um
Hardness 600 HV Indentation diameter 0.54mm 0.54mm 0.32mm 0.90mm
Indentation depth 17 um 17 um 8 um 41 um
Hardness 800 HV Indentation diameter 0.35mm 0.35mm 0.35mm  
Indentation depth 10 um 10 um 7 um  
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