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| Indentor |
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Height: 2.50mm Shape: Spherical |
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| Hardness Tester Selection Chart |
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Our product line consists of various types of durometers applicable to specific materials
as indicated in the chart above.
Type A Durometer (ASKER A type), conforming to JIS K 6235 is the most popular type of durometer for measuring rubber hardness.
However, verification is recommended because a significant difference is estimated to be the largest when a durometer indicates measurement values from 10 to 90 points.
For hard specimens for which Type A Durometer readings indicate more than 90 points, measurements should be undertaken using the Type D Durometer (ASKER D type). However, for soft specimens with measurements of less than 20 points, the ASKER C type or Type E Durometer (ASKER E type) should be used. The most important consideration in using durometers is to select the correct type for purposes of measurement according to the specimen.
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Specification |
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| Standards |
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JIS K 6253
ISO 7619 |
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| Indication range |
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0 point - 100 point (262 degree dial scale) |
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| Minimum indication |
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1 point (Accuracy : ±1 point) |
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| Indentor Design (mm) |
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Height: 2.50 5.00 Dia. Spherical |
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| Spring Forces [mN(g)] |
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| Central hole of diameter of Pressure foot |
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Φ5.5 |
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Pressure foot
Dimension (mm) |
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φ16 Longer foot type Length: 18 |
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| Outer Dimension (mm) |
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Approx. Width 57×Depth 30×Height 94 |
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| Weight (g) |
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200 |
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| Application |
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soft rubber, urethane foam, sponge, rolled-threads, film rolls and pottery clay |
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Outer Dimension (mm) |
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| Outer Dimension (mm) |
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Option |
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Two-pointer type (max-hand and active hand) of Rubber Hardness Tester
The stationary set hand (max-hand) makes the maximum value easier to read and allows the creep characteristics of a specimen.
Accurate measurement is made possible for specimens* for which stress relaxation occurs over time or for specimens for which it is difficult to take readings from the front.
*Materials for which the reading decreases immediately after the indentor has been pressed against the surface. |
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Constant Loader for Durometer
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Constant loarder assures uniform test pressure eliminating false readings due to differences between operators in measuring by hand. |
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High accuracy and repeatability of the hardness readings are assured by the flexible joint function. |
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Indentor Extension Tester
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The gauge to check the indentor height on a durometer and the reading indicator mechanism. |
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Inspection is conducted at 2, 50, and 100 points respectively. |
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Load Tester for Hardness Tester
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Tester to check load properties of the spring on a durometer |
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Inspection is conducted at 2, 50, and 75 points respectively. |
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