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The WAC11 Mk5 is Wallace Instruments’ next generation Compression Stress Relaxometer. (Source: Wallace Instruments)

24. November 2021

Wallace Instruments: Next generation Compression Stress Relaxometer

Wallace Instruments has launched its next generation Compression Stress Relaxometer, the WAC11 Mk5.

The testing machine allows the operator to easily measure the compression stress relaxation (CSR) characteristics of rubber seals, O-rings and gaskets to international standards to estimate their long-term sealing behaviour and predict service life. For safety-critical applications, it is essential that these components, whilst under compression, operate without failure for their expected lifespan. CSR is a measure of the ability of an elastomer to seal efficiently when held in compression over time and in varying environmental conditions and testing is increasingly being added to durability specifications for elastomeric parts used in the automotive, aerospace and construction industries.

Earlier this year Wallace Instruments joined forces with Ohio-based ACE Products & Consulting), a leading rubber and silicone testing and R&D laboratory who now act as its North American sales, calibration and service partner for the Wallace range of materials testing equipment.

ACE President & CEO Erick Sharp said, “We are delighted to be working with Wallace and have just received of one of its new Compression Stress Relaxometers for customer demonstration purposes and to complement our ever-growing range of test equipment. Wallace is known throughout the world as industry leaders in rubber testing and we are very impressed with the WAC11 Mk5 which ticks all the boxes in terms of cost, flexibility and reproducibility.”

Wallace Instruments has more than 70 years of supplying materials testing equipment specialising in products that measure physical properties such as hardness, plasticity viscosity, cure, compression as well as many other characteristics. Millions of tests are carried out annually on its testing instruments across the globe for research and development and quality assurance across a diverse range of industry sectors from natural rubber producers and tyre manufacturers to the aerospace industry. Its products are designed and manufactured by its sister company in the UK, Tenon Engineering who is also a supplier to other world-leading specialist scientific instrument companies. Both companies are located in Dorking, Surrey in the United Kingdom.


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