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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 48-4, ISO 868, ASTM 2240

Durometer with curved working face for accurate measuring

Categories: HPS-R Series, Shore Durometer

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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

Adjustable min./max. indicator marks to highlight working range of the durometer HPSA-R

Shore hardenss tester with memory pointer to capture and store the last or highest reading during measuring

For diameters > 110 mm the standard model HPSA can be used

Optionally available: Calibration certificate with calibration report

Standard Features

High repeatability

Easy to use

Durometer with an application range of 10 – 90 Shore A units

Certificate of Compliance with the order 2.1 according EN 10204 is included

Available Models

Model	Application	Recommended Roller Ø	Radius of Flat surface
HPSA-R20-M	rubber coated rollers and rollers	< 40 mm	20 mm
HPSA-R35-M	rubber coated rollers and rollers	40 – 70 mm	35 mm
HPSA-R55-M	rubber coated rollers and rollers	70 – 110 mm	55 mm
	alternative
HPSA-M	rubber coated rollers and rollers	> 110 mm	18 mm Ø	more

Specifications

Shore:	Shore A
Indentor:	Cone 35°, Ø 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 oder 55 mm
Base plate:	45 mm Ø
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

Operation

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.

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 till 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 with a shore durometer of HPS series

Attachments and Accessories

PSHP - Test Stand
Model PSHP for series measurements
– Spring loaded lever for fast, precise positioning
– Height adjustable 0 – 200 mm
– Stroke lever action 40 mm
– Dimensions 162 x 100 x 320 mm (LxBxH)
– Weight net: approx. 2.3 kg
Various plates are optional available,
ask for more information !

HP-PR und HP-PT - Test Block
The test plate is used for testers with a curved surface. It can be tested, if the measuring pointer does a 360° turnaround conforming to an defined penetration.
Test method:
Place the tester on the block. Press down the instrument with its housing ( do not use spring – loaded outer shell). The pointer has to do a full turnaround from zero to zero marking. If the result of the verification is positive, the durometer should show correct readings over the complete range.
For durometers with curved working face
Order number: HP-PR (Radius 20 mm)
Order number: HP-PT (Radius 35 and 55 mm)