Hardness Testers


    hardness-testers-hdt-001

  • LCD display of 128×64 matrix with back-light, showing all functions and parameters.
  • Converts to all common hardness scales (HV, HB, HRC, HRB, HRA, HS).
  • Powerful PC Software available and USB 1.0 interface and USB with Protective Membrane.
  • 7 optional Impact Devices, which don’t require recalibration.
  • The memory of 600 group data(impact times:32~1).
  • Lower limit setting and sound alarm.
  • Material of “cast steel” is added; HB values can be read out directly when the D/DC impact device is used to measure the “cast steel” workpiece.
  • Normal AAA battery and big power store while USB
    connected and charging controlling circuit.
  • The inbuilt function of Software Calibration.


  • Hardness scale: HL, HB, HRB, HRC, HRA, HV, HS
  • Memory: 48~600 groups (impact times: 32~1)
  • Measuring range: HLD(170~960)
    Accuracy: ±6HLD (760±30HLD) error of displayed value
    6HLD (760±30HLD) repeatability of the displayed value
  • Standard Impact Device: D
  • Optional Impact Devices: DC/D+15/G/C/DL
  • Max. Workpiece Hardness: 996HV(For Impact Devices D/DC/DL/D+15/C)
    646HB(For Impact Device G)
  • Min. Radius of Workpiece: Rmin = 50mm (with special support ring Rmin= 10mm)
  • Min. Workpiece weight: 2~5kg on a stable support
    0.05~2kg with compact coupling
  • Min. Workpiece thickness: 5mm (Impact Devices D/DC/DL/D+15)
    1mm (Impact Device C)
    10mm (Impact Device G)
  • Min. thickness of hardened surface: 0.8mm
  • Power: Normal AA Battery
  • Continuous Working time: approx. 100 h (backlight off)
  • Operating temperature: 0~40℃
  • Relative humidity: ≤90%
  • Overall dimensions: 125*67*31mm (main unit)
  • Weight: 0.3kg (main unit)