Saturn Machine Knives Ltd is the manufacturer of the world-renowned Rotatech Brand of Biomass blades.
Using only the highest quality chipper steel sourced directly from accredited steel mills you can be assured of consistent quality. Both 8% and 5% Chrome grades of steel are available, depending on your application. All heat treatment is carried out by our Aerospace certified subcontractor and Vacuum heat-treated to OEM specification.

We are the biggest supplier of machine knives to the recycling, biomass, sawmill and arborist industry in the UK. Submit an enquiry today and see how Saturn Machine Knives can reduce your machine knife replacement costs.

All manufacturing is carried out in our Sheffield facility using the latest CNC machinery to ensure consistent quality time and time again.
Rotatech Biomass blades the toughest and most durable blades available on the market today.

We can supply blades for any make or model of chipper or shredder.
Many blades are held in stock for next day delivery, alternatively, we have the shortest manufacturing lead time in the UK. Having Saturn Machine Knives Ltd as your Biomass blade supplier means that you get the very best quality, service and value.

Call our team today on +44 (0)114 278 90 90 or email us at for comprehensive guidance and advice around our range of industrial machine knives. When you choose Saturn Machine Knives as your blade supplier, you’re joining a large network of customers who trust the performance and quality of our Rotatech products.

"Great for doing regrinding.Took 6 working days to return the blades once they were dispatched though."

"I can’t recommend these guys highly enough for the complete and professional service ..."

"Never had any issues here. Next day delivery always arrives on time, handy for my business!."