Ring dies for wood and feed pelleting
Products & services – Everything from a single source
GRAF GmbH stands for precision and quality in the manufacturing of ring dies, roll shells, and spare parts for pellet mill. Complemented by comprehensive services such as consulting, delivery, and refurbishment, we provide solutions that are in use worldwide – reliable, efficient, and durable.
Discover our products
Our Products at a View
Ring Dies
Our ring dies are manufactured to the highest quality standards and are suitable for all pellet mill. Thanks to precise deep-hole drilling, optimal heat treatment, and intensive final inspection, you benefit from:
Maximum concentricity
Long service life
Immediate readiness for use / Plug’n’Play
The result: consistently high pellet quality and maximum throughput with minimal energy consumption.
Roll Shells
As the perfect complement to our dies, we supply roll shells that guarantee maximum precision and durability.
We offer:
- Roll shells dimpled, corrugated or diagonally corrugated
- Variants with open or closed ends
- Material selection from standard steel to special alloys (e.g. 100Cr6)
This ensures a long service life, reduced downtimes and smooth operation of your pellet mill.
Spare Parts
In addition to dies and roll shells, we supply a wide range of spare parts – perfectly tailored to your pellet mill:
- Wear rings and reinforcing rings
- Complete roll shell assemblies
- Spare parts in proven GRAF quality – precise, durable, and ready for immediate use
In this way, we ensure that your production continues to run reliably at all times – without compromising on quality or efficiency.
Our First-Class Service
Consulting
At GRAF, service does not end with the sale. We provide comprehensive advice – from selecting the right ring dies and roll shells to optimizing your entire pelleting process. Thanks to decades of experience, we understand the specific requirements of the feed and wood pellet industry and help you sustainably improve efficiency and pellet quality.
Delivery
With our Just-In-Time delivery, you benefit from planning security and flexibility. We deliver worldwide, securely packaged and on schedule by truck, ship, or plane.
Even with special regulations or complex logistical requirements, you can rely on our experience.
Repair & Refurbishment
A worn die does not always have to be replaced – we give it a second life. Using state-of-the-art technology, we precisely regrind and counterbore the pressing area.
This allows you to reduce operating costs and extend the service life of your dies.
Technology Consulting
The pelleting process is complex and depends on many factors. Our experts analyze your processes and identify opportunities for optimization. This allows you to increase throughput, energy efficiency, and product quality alike.
Made in Germany –
Quality without compromise
Our products are created by combining decades of experience with state-of-the-art manufacturing technology. In-house machine developments – including automated deep-hole drilling and counterboring machines – enable a precision that sets worldwide standards.
The result: longer service life, optimal concentricity and immediate readiness for use – for maximum cost-effectiveness in the pelleting process.
- In-house developed deep-hole drilling and counterboring machines for precise bores
- Vacuum hardening systems for ideal heat treatment
- Final inspection and breaking-in of every die
- 100% Made in Germany
Our products in action
GRAF ring dies and roller shells are in use in a wide variety of industries – wherever high-quality pellets are in demand. Whether in the feed industry or in wood pellet production: our products ensure consistent quality, high efficiency and low energy consumption.
We are also at your side with our expertise to advise you on new or particularly demanding raw materials.
Feed Industry
Optimal pellet quality at high capacity
Wood Pellets
Energy efficiency and constant product quality
Other Product
Tires, fertilizer, hops, tea, and other pelletizable products
Globally Connected
With customers and partners in over 50 countries, GRAF GmbH is active worldwide. Our international network ensures that you can count on competent contacts and reliable service wherever you are.