Rockwell Hardness Testers



Impact Devices:

  • D-Probe:

    Universal standard unit. Will handle the majority of hardness testing applications. Weight: 75g

    Model No. PHT1800-100

  • D+15 -Probe:

    Very narrow contact area with a set back measurement coil. This device is used to measure hardness in grooves and recessed surfaces. Weight: 80g

    Model No. PHT1800-110

  • DL -Probe:

    This model features a needle front section with a diameter of 4mm and a length of 50mm. It is suitable for testing in extremely confined spaces, the base of grooves and on special components such as as gear wheels. For use on steel and cast steel only!

    Model No. PHT1800-115

  • DC-Probe:

    Very short impact device for those confined areas, i.e. inside bores for internal measurements. Conforms to the D measuring range. Weight: 50g

    Model No. PHT1800-120

  • G-Probe:

    This device has an enlarged test tip, and an increased impact energy range (approx. 9 times the D, 72 ft-lb.). Can be used on lower quality finishes for measuring hardness in the Brinell range only (max. 650 HB). Designed to be used with heavy components such as heavy castings and forgings.
    Weight: 250g

    Model No. PHT1800-125

  • C-Probe:

    A reduced impact energy impact device(approximately ¼ of the D Type 2 ft-lb.) for measuring the hardness of surface hardened components, coatings, thin wall or impact sensitive components. Applies a small superficial indentation.
    Weight: 75g

    Model No. PHT1800-130


Technical Data for Portable Hardness Tester Impact Devices

Note: Impact device D is standard device on all models. Specification is identical.

Impact Devices D/DC/DL D+15 C G
Impact energy 11Nmm 11Nmm 3Nmm 90Nmm
Mass of the impact body 5. 5g 7. 8g 3. 0g 20g
  DL: 7.3g      
Test tip        
* Hardness 1600HV 1600HV 1600HV 1600HV
* Diameter 3mm 3mm 3mm 5mm
* Material   Tungsten Tungsten  
*   carbide carbide  
Impact device        
* Diameter 20mm 20mm 20mm 30mm
* Length 147/86mm 162mm 141mm 254mm
* Weight 75/50g 80g 75g 250g
Max. hardness of sample 940HV 940HV 1000HV 650HB
Preparation of surface        
* Roughness class ISO N7 N7 N5 N9
* Max. roughness depth Rt 10 µ m 10 µ m 2.5 µ m 30 µ m
* Average roughness Ra 2 µ m 2 µ m 0. 4 µ m 7 µ m
Min. weight of sample        
* Of compact shape 5kg 5kg 1.5kg 15kg
* On solid support 2kg 2kg 0.5kg 5kg
* Coupled on plate 0. 1kg 0. 1kg 0. 02kg 0. 5kg
Min. thickness of sample        
* Coupled 3mm 3mm 1mm 10mm
* Min. thickness of layers 0. 8mm 0. 8mm 0. 2mm -
* Indentation of test tip        
* With 300 HV        
* Diameter 0. 54mm 0. 54mm 0. 38mm 1.03mm
* Depth 24 µ m 24 µ m 12 µ m 53 µ m
* With 600 HV        
* Diameter 0. 45mm 0. 45mm 0. 32mm 0.90mm
* Depth 17 µ m 17 µ m 8 µ m 41 µ m
* With 800 HV        
* Diameter 0. 35mm 0. 35mm 0. 30mm -
* Depth 10 µ m 10 µ m 7 µ m -

For Testing on Round Parts

12pc Universal Support Ring Set For Portable Hardness Testers

This set is designed to let the user confidently test on round (Concave or Convex) parts. Simple threaded design for quick change in the shop or out in the field.

Model No. PHT1500-300

Set Consist of: 1pc Universal Stand plus the following:

Concave Support Rings

11-13mm round 12.5-17mm round 16.5-30mm round
11-13mm square 12.5-17mm square 16.5-30mm square

Convex Support Rings

10-15mm round 14.5 – 30mm round  
10-15mm square 14.5 – 30mm square 25-50mm square

Calibrated Leeb Test Blocks

For all Leeb Portable Hardness Testers
  • HLD Test Block (for use with all “D” type Impact Devices) Range: 750-800 (50’s HRC)

    Model No. PHT1300-01
    Model No. PHT130001-CERT: NIST Certified (HRC)

  • HLD Test Block (for use with all “D” type Impact Devices) Range: 590-670 (40’s HRC)

    Model No. PHT1300-02
    Model No. PHT130002-CERT: NIST Certified (HRC)

  • HLD Test Block (for use with all “D” type Impact Devices) Range: 490-570 (20’s HRC)

    Model No. PHT1300-03
    Model No. PHT130003-CERT: NIST Certified(HRC)

  • HLD Test Block Double Sided (for use with all “D” type Impact Devices) Range: 750-800 (60’s HRC)

    Model No. PHT1300-05

Leeb Test Blocks for “G” Impact device

  • HLG Test Block (for use with large “G” Impact Device)

    Model No. PHT1100G-01
    Model No. PHT1100G-CERT: ASTM Certified(Brinell)

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