Heavy Duty Rotary Valves for the Cement Industry

High Volume, Handled with Ease

Industry: Mining & Minerals

The problem:

  • Our customer was replacing four rotary valves in their cement system, but there was no like-for-like match. The specification required the use of direct drive motors, rather than our standard chain drive.
  • The required throughput was over 200 tonnes an hour, handling an abrasive product.

The requirement:

  • To provide rotary valves that would deliver the specified throughput whilst withstanding the abrasion that the product could cause.

The solution:

  • Our 600mm rotary valves running at 27 rpm would provide the required throughput of 214 tonnes an hour. Support frames were designed and fabricated in-house to support the motors. To withstand the abrasiveness of the product, we supplied mild steel rotors with abrasion resistant, replaceable blades.

The result:

  • A set of four rotary valves that can resist abrasion without compromising the effectiveness of the valves.


Working in collaboration, creating tailored solutions, engineering designed to match your needs.

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What our customers say

"I wanted to congratulate the entire team at Rotolok on the initial sales consultation, after sales support, technical documentation and most importantly the quality and reliability of your finished product. Notably the two ATEX certified rotary valves we bought from you last year have been faultless!" Rob Rogers, Technical Director, Gough Engineering
"You delivered the first 2 rotary valves in around 3 weeks, which was not only 1 week sooner than you quoted me, but an impressive 17 weeks faster than I was quoted by a competitor of yours!!” Richard Stanton, RAS Extraction Ltd
“I would like to take this opportunity to express my thanks to every staff member at Rotolok for their sincere support throughout. I would definitely recommend Rotolok to be considered on our future projects where advice is sought” Mechanical Engineer, Multi-National Project Management Consultancy
"We have been working with Rotolok for many years, throughout we have been overwhelmed with the product quality and especially the communication." General Manager, Major OEM Supplier, Lithuania
“The RotoFlex Valves arrived today and I could not be happier with them!” James Saker, Maintenance Technician at DDW, The Color House
“You may not know this but I bought twenty 250 drop through seals from Dan McCauley when he first started up in the mid to late 70’s. I think I picked them up from his home near Gatwick- they are still running perfectly!!” Duncan Marston, Former Director at C Marston and Sons (Now known as Heygates, Icklingham)
"Thank you so much for the prompt response and great support as always!” Multinational Consumer Goods Manufacturer
"I was really happy about the service and the fast responses I received.” Mischa Ruf, Process Engineer, Ingelia
"The specification was exactly as ordered and the Rotolok valve worked very well in every moment of production. We appreciate the interest to deliver the perfect product for our application." Alessandro Gonzalez, Mechanical Designer, IRIS S.R.L, Italy