Durometer Test Stands

F.A.Q.


Hydraulic & Pneumatic Speed-Dampened Stands (ASTM D2240 3.2 mm/s Descent Control)

To overcome internal spring resistance and seat the Durometer presser foot flat against the test specimen without excessive crushing force, ASTM D2240 mandates three specific dead-weight masses:

  • 400 grams: Required for low-force foam and gel scales (Shore OO, OOO, and OOO-S) using the Rex OS-4 Test Stand.
  • 1.0 kilogram (1,000 g): Required for medium-force elastomer scales (Shore A, B, E, and O)—supplied as the standard base mass on most test stands.
  • 5.0 kilograms (5,000 g): Required for high-force rigid polymer scales (Shore C, D, and DO)—achieved by adding an optional 4 kg auxiliary weight on top of a 1 kg stand arbor.

Why does descent speed affect Shore hardness readings on rubber and plastics?

If a Durometer is dropped too quickly onto an elastomer specimen, kinetic impact energy drives the indenter deeper into the surface than static spring force alone, causing artificially low hardness readings (or high transient spikes). Dampened stands like the Rex OS-2H and motorized stands like the Imada YMS regulate descent velocity below the ASTM D2240 limit of 3.2 mm/s for shock-free contact.

Can one Durometer test stand be used for both Shore A and Shore D testing?

Yes. Stands such as the Rex OS-2 / OS-2H, Checkline OS-300-2, Imada SY, and Imada YMS feature a 1 kg base arbor mass for Shore A testing and accept a removable 4 kg auxiliary weight (totaling 5 kg) whenever you swap in a Shore D Durometer.

Are Durometers included with the test stand?

No, Durometer operating stands are sold separately so you can pair them with your exact preferred analog or digital Durometer scale (Shore A, D, O, OO, or Type M). Always match the mounting thread of your Durometer brand (Checkline, Rex Gauge, or Imada) with the corresponding stand series.

Checkline PTS-HP HP Durometer Test Stand

$930.00
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About this item
  • Checkline PTS-HP HP Durometer Test Stand for HPSA, HPSD or HPSO Durometers
  • Spring loaded lever for fast & precise travel
  • Manufacturer: Rex
  • Warranty: One Year

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Checkline OS-300-2 Durometer Test Stand

About this item
  • Checkline OS-300-2 Durometer Test Stand
  • Spring loaded lever for fast & precise travel
  • Durometer Test Stand designed for use with AD-300 Analog Durometers
  • Manufacturer: Checkline
  • Warranty: One Year

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Imada SY Durometer Stand Lever-Operated Durometer Operating Stand

$2,562.00 - $2,772.00
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About this item
  • Simple lever operation
  • Auto Contact enables the durometer to make full, even contact
  • Pneumatic damper maintains consistent test speed

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Imada YMS Motorized Durometer Test Stand

$5,320.00 - $5,530.00
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About this item
  • OLED display is visible in dark environments
  • Simple operation: Press the MEASURE button
  • Auto height adjustment

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Rex EMS4 Remote Readout Data Collection App

$1,436.00
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About this item
  • Rex EMS4 Remote Readout Data Collection App
  • 7" Color Tablet with Remote Android App 
  • Custom Made Tablet Stand
  • AC Adapter
  • Set Tolerances

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Rex OS-1 Durometer Test Stand

$1,794.00
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About this item
  • Rex OS-1 Durometer Test Stand
  • Durometer Operating Stand for use with type A, B, C, D, DO, E, O, OO, and OOO
  • Compatible with RX-1600, RX-1700 & RX-DD Durometers
  • Manufacturer: Rex
  • Warranty: One Year

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Rex OS-2 Durometer Test Stand

$1,116.00 - $1,506.00
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About this item
  • Rex OS-2 Durometer Test Stand for Type A, B, E and O scale durometers
  • Eliminates operator error
  • Manufacturer: Rex
  • Warranty: One Year

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Rex OS-3 Durometer Test Stand for Type M Durometer

$1,506.00
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About this item
  • Rex OS-3 Durometer Test Stand for Type M Durometer
  • Required for Type M Durometers per ASTM D2240
  • Manufacturer: Rex
  • Warranty: One Year

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Rex OS-4 Durometer Test Stand for Type OO & OOO

$1,116.00 - $1,506.00
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About this item
  • Rex OS-4 Durometer Test Stand for Type OO & OOO
  • Eliminates operator error
  • Manufacturer: Rex
  • Warranty: One Year

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Rex OS-AUTO Motorized Durometer Test Stand

$5,430.00
FREE Ground Shipping
About this item
  • Rex OS-AUTO Motorized Durometer Test Stand
  • Manufacturer: Checkline
  • Warranty: One Year

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Asker CLE-150 Durometer Motorized Constant Speed - Load Stand

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About this item
  • Asker CLE-150 Durometer Motorized Constant Speed - Load Stand
  • Adjustable Test speed: 0.1~19.9 mm/sec in .1 mm increments
  • Unique flexible coupling system automatically aligns the presser foot to the surface of sample

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Hoto e-1000 e-5000 Durometer Constant Load Stand

Discontinued Product
About this item
  • Hoto e-1000 e-5000 Durometer Constant Load Stand
  • Stand for EX and X Series Durometers
  • Eliminates operator error
  • Manufacturer: Checkline
  • Warranty: One Year

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