Project Description

shore A hardness tester

Durometer Hardness Tester | Durometer Gauge China Supplier

When it comes to rubber properties, there is no doubt that hardness is one of the crucial elements we need to focus on, which is directly related to the applications of final products. Using a user-friendly hardness measuring instrument is necessary for practitioners in the fields of rubber manufacturing, research & development.

Shore A hardness tester is used to measure the vulcanized or thermoplastic rubbers with average hardness. An indentor in the hardness tester is pressured toward the surface of the rubber vertically with the given force applied. The depth of penetration of the indentor forced into the rubber when the face of the pressure foot is in contact with the specimen’s surface is measured. The piercing length is inversely proportional to the hardness: The shorter the penetration depth is, the harder the specimen is, and vice versa.

It is widely used for determining the hardness of semi-finished products and finished products for quality control.

Shore A hardness tester is a portable hand-hold testing equipment featuring onsite measurement without limitation of time, environment and place. In order to heighten the accuracy, some operators use this gauge with an SLX stand together, adding a weight applied to the pressure foot. Both of them can be gainable from Amade.


Test Standards

ISO 7619, ISO 868, ASTM D 2240, DIN 53505, etc.

Technical Parameters

Model AT-R7004
Dimension 115 × 60 × 25 mm
Dial Value Range 0 ~ 100 HA
Measuring Range Recommended 10 ~ 90 HA
Indentor Travel Distance 2.5 mm
Indentor Dia. φ0.79 mm
Weight 4 kg

Durometer Gauge Features

  • Simple structure promotes ease of maintenance.
  • The small dimension of the durometer gauge allows it to be carried conveniently.
  • It is easy to use and supports onsite hand-hold measurement and operation with an SLX stand in the laboratory.
  • This Pointer-type durometer offers explicit readings.
  • Besides shore A hardness tester, Shore C & D hardness testers are also available for applications to specimens with the hardness of various degrees. 
  • Digital display Shore Hardness Tester is also available from Amade.

How to Choose a Proper Shore Hardness Tester

Shore A durometer for rubbers in the normal-hardness range.

Shore D durometer for rubbers in the high-hardness range.

Shore C durometer for rubbers in the low-hardness range and cellular rubbers.

  • If the hardness readings are less than 20 when you use shore D durometer, please select hardness tester – Shore A.
  • If the hardness readings are over 90 when you use shore A durometer, please select hardness tester – Shore D.
  • If the hardness readings are less than 20 when you use shore A durometer, please select harness tester – Shore C.

Shore Durometer Hardness’ Test Procedure

  1. Prepare well the test piece in conformance with relevant specifications ensuring the thickness of the specimen for durometers A & D shall be at least 6 mm, for durometer C it should be at least 1.5 mm ).
  2. Exert a prompt force to apply the pressure foot to the test piece positioned on a plain and rigid surface without shock.
  3. Take the reading within the specified time after the pressure foot is in firm contact with the specimen (The standard test time is 3 s for vulcanized rubber and 15 s for thermoplastic rubber).
  4. Carry out 5 measurements of hardness at different places on the specimen at least 6 mm apart for Shore A & D & C durometers, and then pick up the median value as the test result.

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Please feel free to contact us for more details on the product, price, lead time, payment terms, shipment methods, etc. Amadetech sales specialists will respond within one working day.

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