SIMEC specializes in providing customized ring dies for wood pellet production. Our in-depth expertise and decades-long experience in manufacturing customized ring dies have been widely acknowledged within the wood pellet production industry. The ring dies are made from forged special stainless-steel blanks. We use a CNC machining center and a CNC ring die deep-hole drilling machine to ensure high-precision processing.
 
After undergoing high-temperature heat treatment within a vacuum furnace, the ring dies can attain a hardness of up to 54-56 HRC. This high hardness substantially improves their durability. As a result, the replacement cycle of the customer's ring dies can be extended, and the maintenance cost of the wood pellet machine can be significantly reduced.
 
Specifically, we carefully design the inlet conical holes, straight holes, and release holes. The design aims for an optimal compression ratio, which is crucial for efficiently producing pine wood pellets. Our integrated approach, covering material selection, hole design and precise manufacturing, enables us to meet the strict requirements of clients in the wood pellet industry.

SIMEC has a regular client based in Pine Bluff, Arkansas. This client commands a leading position in the US wood pellet production market. The factory is equipped with a dozen Andritz PM30 pellet mills. Thanks to the outstanding quality of its wood pellets and the stable production volume, the factory has gained a great reputation in the wood pellet market.
 
Our partnership with the client commenced in 2022 with a trial order of one PM30 ring die. During the months of operation, the SIMEC ring die performed exceptionally well. It demonstrated a remarkable service life of 2,150 hours without the need for any refurbishment. This outstanding performance convinced our client to enter into a long-term, regular cooperation with SIMEC.

In April 2024, the client placed a milestone order for 20 ring dies. Building on this, in November 2024, they ordered 30 PM30 pellet mill ring dies. This new order was split into two shipments. Specifically, the first consignment was dispatched to the client's premises in December 2024, while the second consignment was shipped in February 2025. 15 ring dies were individually packaged into five cartons, each of which was wrapped in plastic film and firmly loaded onto a plywood pallet for safe transportation.