Rubber and Plastic Hardness Testers

Affri full range of Shore and IRHD hardness testers, conform to ISO and ASTM standards.

SHORE AND IRHD HARDNESS TESTERS FOR PLASTIC AND RUBBER HARDNESS MEASUREMENTS

Here you will find plastic and rubber hardness testers divided by the level of automation. From simple to fully automatic and motorized hardness testers, portable or benchtop, analogical or digital, with the complete range of testing loads conforming to ASTM E2240 / ASTM 1415 / ASTM D1414 and ISO 7619 / ISO 48 / ISO 868.

IRHD and Shore hardness tester - affri hardness testers
IRHD and Shore hardness tester - affri hardness testers

MICRODAKO

Plastic and Rubber
Fully motorized IRHD and Shore hardness tester for rubber and plastic conform to ASTM 1415/ISO 48 international standards. Equipped with 5 hardness testing units on…
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irhd hardness tester - affri hardness testers
irhd hardness tester - affri hardness testers

IRHD

Plastic and Rubber
IRHD and Micro IRHD Hardness tester for laboratory to measure plastic and synthetic fibers. Conform to ASTM 1415/ISO 48 international standards.
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portable hardness tester shore - affri hardness testers
portable hardness tester shore - affri hardness testers

SHORE

Plastic and Rubber
Portable hardness tester in compliance with ASTM 2240, ISO R.868, DIN 53505, JIS K7215 standards. Slim measuring nose to ensure exact measurement also on small…
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PORTABLE HARDNESS TESTER FOR RUBBER, PLASTIC, MEDICAL COMPONENTS, PAPER AND SPONGE.

Shore A – B – C – D – D0 – 0 – 00 – E – M – 000 – 000S.
Digital portable hardness tester conform to ASTM 2240, ISO R.868, DIN 53505, JIS K7215 standards.

Portable hardness tester electronic shore, affri's range

SHORE AND IRHD HARDNESS TESTS

What are the Shore and the IRHD hardness tests and how do they work?

The procedure for testing the hardness on plastic, rubber and synthetic fibers is quite simple. The most used hardness scales are Shore, using a carbide tungsten indenter (ball, cone or frustum) with specific testing loads and the IRHD (and Micro IRHD) using a ball indenter, a clamping system with defined hole and a specified testing load depending on the specimen thickness.

SHORE
(ISO 7619 / ASTM E2240)
   
Shore AASTM E2240
ISO 7619
Frustum 35°Soft surfaces, flexible rubber, natural rubber, plastic, PVC, polyester, neoprene, leather, nitrile rubbers, tires, etc
Shore DASTM E2240
ISO 7619
Cone 30°Hard and rigid surfaces, ceramic and composites, acrylics, plexiglass, print rolls, cellulose, acetates, nylon, etc
Shore BASTM E2240Cone 30°Medium values. As A scale for higher values.
Shore CASTM E2240Frustum 35°Medium-hard values. As D scale for lower values.
Shore DOASTM E2240Ball 1.2 mmFrom medium-hard to hard values. As B and C.
Shore OASTM E2240Ball 1.2 mmLow values and very flexible materials. As A scale for low values.
Shore OOASTM E2240Ball 1.2 mmVery soft rubbers, sponges, expanded rubber, foam rubber, natural rubber and silicon
Shore EASTM E2240Ball 2.5 mmVery soft rubbers, natural rubber, elastomers, casting resin, soft PVC, leather, etc.
Shore MASTM E2240Cone 30°As A scale, for thin specimens and elastomer materials.
Shore 000ASTM E2240Ball 6.35 mmUltra-soft rubbers, sponges, expanded rubber, foam rubber, natural rubber and silicon.
Shore 000-SASTM E2240Ball 10.7 mmUltra-soft rubbers, viscoelastic polymers.

IRHD - MICRO IRHD
(ISO 48 / ASTM 1415)
     
Test Diameter (mm) and ApplicationContact Force (N)Loads Force (N)Total Force (N)Force at foot (N)
Method N (Standard)Indenter ball 2.50 ± 0.01 / Clamping 20 ± 0.01 / Hole 6 ± 0.010.30 ± 0.025.40 ± 0.015.70 ± 0.038.3 ± 1.5
Thickness >= 4 mm / Range: 35 - 85 IRHD or 30 - 95 IRHD
Method H (High hardness)Indenter ball 1.00 ± 0.01 / Clamping 20 ± 1 / Hole 6 ± 10.30 ± 0.025.40 ± 0.015.70 ± 0.038.3 ± 1.5
Thickness >= 4 mm / Range: 85 - 100 IRHD
Method L (Low hardness)Indenter ball 2.50 ± 0.01 / Clamping 22 ± 1 / Hole 10 ± 10.30 ± 0.025.40 ± 0.015.70 ± 0.038.3 ± 1.5
Thickness >= 6 mm / Range: 10 - 35 IRHD

IF YOU WANT TO KNOW MORE ABOUT THIS HARDNESS TEST METHOD, YOU’ RE WELCOME TO CONTACT US!

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