Textile Durometers

HPSA-R Printing Roller Durometer

HPSA-R Printing Roller Durometer is used for rubber rollers, for cots, pressure rollers, and many other rubber-coated rollers, etc. The correct Shore A hardness of the cots is a critical factor to get the desired yarn structure and quality. As cots are abrasive, the hardness should be checked from time to time as they age.

Models Available

roller diameters up to 1.57″ / 40mm
roller diameters up to 2.75″ / 70mm
roller diameters up to 4.33″ / 110mm

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  • Constant-pressure indicating system assures uniform test pressure eliminating false readings due to differences between operators.
  • Supplied in a foam-fitted carrying case.
  • Operation is as easy as pressing the spring-loaded knurled aluminum shell down to the red line.
  • Standard Memory Pointer to capture peak measurement.


Work Face Radius HPSA-R20 - 20mm/HPSA-R35 - 35mm/HPSA-R55 - 55mm
Indenter Cone 35°, 1.3 mm ⌀
Typical applications Hardness of elastomers and rubber etc.
Depth of indentation 0 - 2.5 mm
Test pressure Approx. 12.5 N
Measuring spring force 0.55 - 8.065 N
Display range 0 - 100 Scale
Scale diameter 56 mm
Working face 16 mm ⌀ = 2 cm²
Weight, net (gross) approx. 300 g (500 g)
Dimensions 50 x 50 x 110 mm (L x W x H)

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