Shore Durometer HPSO

Durometer according to Shore for determining the indentation hardness of soft elastomers, soft elastic materials, medium fast textiles
Shore O hardness tester according ASTM D 2240

Durometer with large seating for accurate measuring

Special Features

  • The spring loaded outer ring assures a constant measuring pressure and eliminates false readings due to difference between operators
  • Flat bottom prevent tilting and improves the measuring accuracy
  • Working face 18 mm
working face hardness tester HPSO
  • Adjustable Min./Max. indicator marks to highlight working range of the hardness tester
  • Optionally available: Calibration certificate with calibration report
  • Standard Features

    • Easy to use
    • High repeatability
    • Application range 20 - 80 Shore O units
    • Certificate of Compliance with the order 2.1 according EN 10204 is included


    For measuring the hardness, the spring-loaded outer ring of the housing is pressed downwards until the edge of the ring meets the colored marking on the housing. This ensures a constant pressure and prevents measuring errors.
    The principle used to measure shore hardness is based on measuring the resistance force of the penetration of a pin into the test material under a known spring load. The amount of penetration is converted to hardness reading on a scale with 100 shore units.
    As the depth of indentation is max. 2.5 mm the testmaterial has to have a minimum thickness of 6 mm. If thickness is less stack some samples til you reach the required thickness.
    operation shore durometer HPSO

    Available Models

    HPS0Shore Osoft elastomers, soft elastic materials, medium fast textiles
    HPSAShore Asoft rubber, elastomers, natural rubber, soft PVC, leather, etc.more
    HPSA-R..-MShore Arubber coated rollers, rollers, and cotsmore
    HPSDShore Dplastic and medium hard to hard rubber materialsmore
    HPSBShore Bfor harder material than Shore Amore
    HPSCShore Cmedium hard rubber, elastomers and plasticmore
    HPSDOShore DOplastic and medium hard to hard rubber materialsmore
    HPSAOShore AOFoams, steering wheels and inner linings of motor vehiclesmore

    Attachments and Accessories

    Memory pointer Code M

    Memory pointer to capture and store value
    (last or highest reading) during measuring.
    Order code: e. g. HPSA-M

    Test Stand

    Model PSHP for series measurements

    • Height adjustable 0 - 200 mm
    • Stroke lever action 40 mm
    • Various plates available optional

    Click picture for more information

    Control Ring 

    To determine the displacement at 20 Shore
    Order number: HP-P20

    Click picture for more information

    Control Rings

    To determine the displacement at 20, 40, 60 and 80 Shore.
    Includes a base disk as basis and an inspection certificate.
    Order number: HP-P20-100

    Click picture for more information

    Calibration Certificate

    Calibration certificate with calibration report is optional available.

    Delivery Includes

    scope of delivery hardness tester HPSO: Hardness tester with carrying case, Certificate of Compliance with the
    order 2.1 according EN 10204 free of charge, operating instructions in
    english or german as requested


    Dimensions For PDF-file please
    click picture


    U-grooved 3/32'' 
    Depth of indentation:0 - 2.5 mm
    Typical applications:Soft elastomers, soft elastic materials, medium fast textiles
    Accuracy: 1 hardness unit
    Application range:20 - 80 Shore O
    Standard:ASTM D 2240
    Measuring spring force:0.55 - 8.065 N
    Test pressure*:Approx. 12.5 N
    Scale diameter:54 mm
    Display range:0 - 100 Shore O units
    Working face:18 mm
    Base plate:44.5 mm
    Weight, net (gross):Approx. 300 g (500 g)
    Dimensions:50 x 58 x 110 mm (LxWxH)

    Specifications subject to change without notice!
    * Spring load of outer ring to create constant pressure



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