RUD, the conveyor technology specialist, has expanded its product portfolio with the launch of a newly developed range of central chains designed for use in high-performance bucket elevators. Featuring a new design and significantly reduced weight, the latest generation of RUD central chains is available in multiple sizes and in two configuration options: with an integrated mounting bracket or as a separate bracket version. This development extends RUD’s offering for lower nominal sizes, providing new application flexibility for industries such as cement, mining, chemical processing and bulk materials handling.

RUD’s central chains have been manufactured since 1992 and are widely used as a robust traction component in bucket elevators handling abrasive and high-temperature materials such as cement, limestone, coal, gravel, rock salt and soda. The latest redesign incorporates a revised system that functions similarly to a bicycle chain. RUD has updated the technology behind the rotating pins, achieving a lighter chain structure that delivers higher performance due to reduced deadload within the system.

The new design is a response to market needs. A global customer and partner survey identified chain weight as a key factor for improvement. By addressing this requirement early in development, RUD succeeded in optimising the design to improve efficiency while maintaining strength and durability.

The central chains are manufactured according to VDI 2324 and can be installed in new bucket elevator systems or retrofitted into existing equipment that uses round link chains or belts. This enables production and maintenance engineers to upgrade plants to high-performance operation without major structural changes. In addition, original equipment manufacturers benefit from the ability to design narrower and more cost-efficient bucket elevators operating at higher speeds.

RUD’s expanded product line includes the RU 100 model with a separate fixing bracket, offering 1,000 kN breaking force and suitable for bucket widths from 400–800 mm. For integrated bracket variants, the RU 40, RU 55 and RU 70 chain sizes cover bucket widths from 200–630 mm, supporting a wide range of system configurations.

www.rud.com.

New design and lower weight: the new central chains from RUD