Rubber & Elastomer Testing Machines
Universal testing machines configured for tensile, tear, compression set and hardness testing of vulcanised rubber, thermoplastic elastomers and silicones.
Mechanical Testing of Rubber and Elastomers
High-elongation tensile, tear resistance and compression set testing — optimised for the unique demands of elastomeric materials.
Rubber and elastomers present unique testing challenges: extremely high elongation (500%+), low forces, viscoelastic behaviour and sensitivity to grip clamping. Cermac’s UTM-D (0.1–20 kN) delivers the precise speed control, sensitive load measurement and specialised grips needed for reliable rubber testing.
Combined with the X-Sight video extensometer for non-contact strain measurement on high-elongation specimens, the system provides accurate stress-strain curves without the limitations of mechanical clip-on extensometers.
Rubber Testing Features
High Elongation Capability
Crosshead travel accommodates 500%+ elongation typical of elastomeric materials.
Video Extensometer
Non-contact strain measurement via X-Sight DIC for accurate high-elongation curves.
Pneumatic Grips
Constant clamping force prevents specimen slippage without over-compression at the jaws.
Low-force Sensitivity
Class 0.5 accuracy at forces as low as 1 N for thin rubber films and O-rings.
Multi-test Capability
Tensile, tear, compression set, stress relaxation and hardness on the same platform.
Standard Calculations
Automatic tensile strength, elongation at break, modulus at 100/200/300% and tear strength.
Testing Standards
Tensile properties of vulcanised and thermoplastic rubbers.
Tear strength of vulcanised rubber — trouser, angle and crescent specimens.
Compression set of rubber at ambient and elevated temperatures.
Compression stress-strain properties of rubber.
Compression properties of rubber in compression.
Rebound resilience of rubber — pendulum method.
Applications
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Automotive — seals, gaskets, hoses, bushings, mounts and vibration dampers.
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Medical — silicone tubing, O-rings, stoppers and biocompatible elastomers.
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Industrial — conveyor belts, rollers, couplings and wear-resistant rubber components.
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Consumer — shoe soles, sports equipment and household rubber products.
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Aerospace — fuel system seals, de-icing boots and vibration isolation mounts.
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Raw material QC — incoming rubber compound acceptance and batch-to-batch consistency.
Machines & Accessories in Action
Why Choose Cermac
Since 1983, Cermac S.r.l. has designed and manufactured material testing machines at our ISO 9001:2015 certified facility near Milan, Italy. Direct access to the engineering team, fast spare parts and responsive technical support.
Tailored to Your Laboratory
At Cermac, every testing machine can be fully customised to match your specific requirements. From frame configuration and load capacity to grips, fixtures and software — we design the complete system around your laboratory workflow.
Our engineering team works directly with you to identify the optimal solution for your materials and testing standards.
Frequently Asked Questions
Why is video extensometry preferred for rubber?
Rubber elongates 500% or more — far beyond the range of mechanical clip-on extensometers. Video extensometry tracks strain optically without physical contact.
What grip type is best for rubber?
Pneumatic grips with flat rubber-coated faces provide consistent clamping without cutting into the specimen.
Can the same machine test plastics too?
Yes. The UTM-D handles both rubber (ISO 37) and plastics (ISO 527) by changing grips and speed settings.
What about compression set testing?
Compression set fixtures are available as accessories for the UTM-D, per ISO 815 and ASTM D395.
Request a Quote for Rubber Testing Equipment
Tell us about your testing requirements and our team will respond within 24 business hours.