Durometer Test Stands


The OS-AUTO Durometer Test Stand is designed for precision hardness measurements on rubber, plastics, and other materials. The OS-AUTO provides constant load, controlled rate of descent, and application velocity, through a geared electric motor and braking mechanism that alternately lowers the durometer onto the specimen and then raises it in preparation for the next test.

OS-AUTO also provides an electronic timer that can adjust the amount of time the durometer remains in the lowered position (dwell time).

The durometer and carriage assembly has a mass sufficient for use with Types A, B and O. The incorporation of the large detachable mass is required for testing with Type C, D, and DO durometers. The OS-AUTO can also be configured for use with durometer Types OO, OOO, and OOO-S.

Durometer Sold Separately

For more info Please Request a quote now..!!


  • Motorized Controlled Rate of Descent.
  • Applies Correct Load Per ASTM D2240.
  • Eliminates Operator Error.
  • Adjustable Dwell Time
  • Precision Machined Frame with Powder Coated Base.
  • Stainless Steel Housing for Durability and Ease of Maintenance.
  • High Quality Electric Motor and Servos Provide Reliable Operation and Long Life.
  • Includes D Weight


Durometer Scales A, B, C, D, DO, O, OO, OOO, OOO-S, E (Specify requirement when ordering)
Over Dimensions (DxWxH) 13 x 6.125 x 9.75 in (356 x 156 x 248 mm)
Specimen Table Dimensions 7 x 6 in (177 x 182 mm)
Throat Depth 3.25 in (83 mm)
Throat Height 3.125 in (79 mm)
Weight (without additional mass) 35 lb (16 kg)
Specimen Thickness Minimum: 0.240 in (6 mm) per ASTM D2240 / Maximum: varies with durometer model; ~3 in (75 mm)
Timer Operation 0 through 9999 seconds
Power Requirements 120 VAC 60 Hz | 240 VAC 50 Hz optional
Operating Temperature 73.4 ± 3.6 °F (23.0 ± 2.0 °C)

Related Products

1500 Vernier Durometer With its lightweight and small size, the user can carry the QC at all times. Should it be dropped, even if not in its leather c ...
QC 1500 Vernier Durometer
Click image for more info
The Digital Complete O-Ring Hardness Kit is the most convenient and accurate way to perform repeatable hardness (durometer) testing on thin materials ...
OTK-DG Digital O-Ring Durometer Kit
Click image for more info
EMS4 Remote Readout Data Collection App Model RX-DD Digital Durometer has the capability of communicating over USB with this data collection syste ...
EMS4 Remote Readout Data Collection App
Click image for more info
For the technician that must perform hardness tests on various types of non-metallic materials, we offer the Multi-Scale durometer test kit. The Mu ...
RX-DD-MS Digital Multi-Scale Durometer
Click image for more info