American Chemical Society Features Corporate Member Bareiss North America

This article previously appeared in “The Rubber Zone – Connecting the Elastomeric Industry” as a Featured Tier IV Corporate Member profile. 

As a leading German manufacturer, Bareiss has shaped the development of hardness testing on plastics, polymers, and elastometers for over 65 years. The driving force behind this Family owned and operated business is Oliver Wirth and Katrin Shen. As third generation visionaries, these owners continue to focus on expanding our material testing technologies deeper into the pharmaceutical, agriculture and food industry. To help shape the World of standards, Bareiss has increased their Global network by opening operations in China, Taiwan, USA and Canada.

As we navigate our way towards the future, Bareiss is proud to introduce the World’s first rotational closed cavity rheometer with unlimited oscillation strain. The RPA Ultra is an unconventional closed cavity rheometer with a rotational lower die, providing unrestricted oscillation strain and breakthrough of up to 100 Hz. The instrument is designed to measure dynamic and static properties of raw elastomers and rubber compounds in all stages of a curing process. Another technology breakthrough is the extended range of shear rate going from 0.001 to 500 1/s. The high shear rate can be used to simulate the extrusion process in a real production scenario.

Bareiss is also introducing a new Hybrid IRHD M hardness test system called BaRotation IV. We have a history of engineering dedication to the IRHD (International Rubber Hardness Degree) testing technology. It is the most widely used method for measuring elastomers with thickness less than 1 mm. BaRotation IV is built on the concept of multiple and hybrid tests in one go with almost no human operator needed throughout the entire testing process. The large rotational table can hold from 1 to 100 O-ring specimens depending on the sizes of O-rings. A complete test cycle starts from a laser scanning of the specimen for its highest or mid-point, followed by an IRHD M or Micro Shore A hardness test and finally an image capture for OD and ID measurements.