Shore Durometer HPSA-R-M

Durometer according to Shore for determining the indentation hardness of cots, pressure rollers, aprons and many other rubber coated rollers, etc. with max. diameter 200 mm
In dependence to Shore A according DIN 53505, ISO 7619/2, ISO 868, ASTM 2240

Durometer with curved working face for accurate measuring

Special Features

  • The spring loaded outer ring assures a constant measuring pressure and eliminates false readings due to difference between operators
  • Working face slightly curved to fit on rollers
working face hardness tester HPSA-R
  • For diameters > 110 mm the standard model HPSA can be used
  • 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 10 - 90 Shore A 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 collored marking on the housing. This ensures a constant pressure and prevents measuring errors.
application for hardness tester HPSA-R General:
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 test material has to have a minimum thickness of 6 mm. If thickness is less stack some samples til you reach the required thickness.

Important for Spinning-Cots
The correct Shore hardness of rubber rolls, special cots, is a critical factor to get the desired yarn structure and quality. As cots have abrasion or rubber is aging, the shore hardness should be checked from time to time.
operation for hardness tester HPSA-R

Available Models

Radius of
flat surface
HPSA-20R-Mrubber coated rollers and rollers< 40 mm20 mm
HPSA-35R-Mrubber coated rollers and rollers40 - 70 mm35 mm
HPSA-55R-Mrubber coated rollers and rollers70 - 110 mm55 mm
HPSA-Mrubber coated rollers and rollers> 110 mm18 mm more

Attachments and Accessories

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

Test Block

For Hardness tester with curved working face
Order number: HP-PR (Radius 20 mm)
Order number: HP-PT (Radius 35 and 55 mm)

Click picture for more Information

Calibration Certificate

Calibration certificate with calibration report is optional available.

Delivery Includes

scope of delivery hardness tester HPSA-R: Hardness tester with memory pointer and 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


Shore:Shore A
Indentor:Cone 35, 1.25 mm
Depth of indentation:0 - 2.5 mm
Applications range:10 - 90 Shore A units
Measuring spring force:0.55 - 8.065 N
Test pressure*:Approx. 12.5 N
Display range:0 - 100 Shore A units
Scale diameter:54 mm
Working face radius:20, 35 or 55 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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