Rosta’s RPU: tailored torsion power for every unique application need

The RPU, or Rosta Plastic Unit

As a leading producer and supplier of machine elements and components, Rosta Inc. works off the groundbreaking innovations of its parent company in Switzerland – providing solutions in three areas of technology: rubber-suspension, oscillating-conveyor, and tensioning technology. The corporation is always expanding its selection with new products, of which a relatively recent development is the Rosta Plastic Unit, or RPU. This element represents a higher level of customization from the skilled Rosta team.

Versatile range of function

The RPU is designed to meet the exact specifications of any customer, as a fully bespoke torsion-spring-based solution that Rosta has engineered and developed by leveraging advances in material science, modern manufacturing techniques, and its own vast background of experience spanning decades. Just like the standard Rosta element, the RPU is a torsional spring with inherent damping, but with a versatile range of function. The plastic unit can serve customers as a pivot bearing while offering vibration isolation, and it can exert or resist a force, absorb kinetic energy, and guide or control oscillating motion.

The crew at Rosta is willing and able to use its decades of experience to collaborate with customers, to understand their specific needs for the element’s performance and to co-develop the right solutions. Rosta will make and sell the RPU as per the client’s exact specifications after initial prototyping, testing, and fill customer approval.

RPU technology functions in a unique way: a rigid material forms the inner and outer sections, as a second flexible polymer material provides connecting elasticity. The design, geometry, and choice of flexible polymer in the construction can determine the level of relative movement of both the inner and outer sections. In addition to this, the physical limitations and the performance can be engineered precisely, including the spring rate and the damping co-efficient.

Crucial to the company portfolio of specialized machine components designed to provide a variety of useful functions, the standard Rosta element is an elastomer-powered torsional spring that offers reliable performance across a wide range of industrial tasks. From agriculture to mining and transportation, many sectors trust in Rosta.

To learn more, contact Rosta.

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