Saturn Machine Knives Ltd is the manufacturer of the world-renowned Rotatech Brand of Granulator blades.


Using only the highest quality of D2 sourced directly from accredited steel mills you can be assured of consistent quality. All heat treatment is carried out by our Vacuum heat-treated to our own Tuftech specification.
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 Granulators are considered by many to be the toughest and most durable blades available on the market today.
  • Many blades are held in stock for next day delivery, alternatively, we have the shortest manufacturing lead time in the UK.

We specialise in the following industries:

Plastic recycling, rubber recycling, recycling of Nonferrous metals, recycling of textiles.

Having Saturn Machine Knives Ltd as your granulator blades 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 sales@saturnmachineknives.co.uk 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!."