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Precision Ring Dies &
Pellet Mill Components

Over 30 years of expertise in manufacturing high-performance ring dies, flat dies, rollers, and shells for global pellet mill brands. Trusted by industry leaders in feed and biomass energy.

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8,000+

Ring Dies Produced Annually

100,000+

Roller Shells Manufactured Yearly

30+ Years

Industry Experience

About Winho Machinery

Liyang Winho Machinery Co., Ltd is a professional manufacturer of all kinds of ring dies, flat dies, pellet dies, matrices, ring matrices, rollers, roller shells, and roller assemblies for most famous brands of pellet mills in the world.

With over 30 years of experience in die manufacturing, we produce more than 8,000 ring dies and 100,000 roller shells annually. Our precision engineering ensures extended service life, optimal pellet quality, and reduced downtime for our clients across the feed and biomass industries.

  • OEM/ODM Solutions Available
  • Custom Hole Diameters: 0.8mm to 16mm
  • Compatible with CPM, Andritz, Buhler, Salmatec, Munch & more
  • Advanced Heat Treatment & CNC Processing
Winho Machinery Factory

Our Premium Products

High-precision engineered components for feed and biomass pellet mills. Built for durability, efficiency, and consistent performance.

CPM 7932-5 Ring Die

CPM 7932-5 Ring Die

High-strength alloy steel ring die for CPM pellet mills. Ideal for feed pellet production with precision hole alignment.

Type: Feed Pellet Hole: 2.5–8mm
CPM 7930-4 Ring Die

CPM 7930-4 Ring Die

Durable ring die designed for high-capacity feed pellet lines. Optimized for wear resistance and long operational life.

Compatibility: CPM Material: 20CrMnTi
Salmatec 840 Ring Die

Salmatec 840 Ring Die

Precision-engineered ring die for Salmatec pellet mills. Suitable for both feed and biomass applications.

Application: Biomass Hole: 6–10mm
Munch 850 Ring Die

Munch 850 Ring Die

Robust ring die for Munch pellet mills. Designed for high-density biomass pelletizing with minimal maintenance.

Brand: Munch Hardness: HRC 58-62
Andritz PM 717 Ring Die

Andritz PM 717 Ring Die

High-performance ring die for Andritz PM series. Engineered for maximum throughput and energy efficiency.

Model: PM 717 Use: Industrial Biomass
Andritz PM 615 Ring Die

Andritz PM 615 Ring Die

Reliable ring die for medium-capacity Andritz pellet lines. Balanced design for consistent pellet quality.

Series: PM Hole: 3–12mm
Buhler DPHE 900-300

Buhler DPHE 900-300

Premium ring die for Buhler pellet mills. Precision CNC-machined for optimal fit and performance.

Brand: Buhler Model: DPHE
Buhler DPHD 660-265

Buhler DPHD 660-265

High-efficiency ring die for Buhler DPHD series. Ideal for feed pellet lines requiring consistent output.

Series: DPHD Diameter: 660mm
Flat Die for Amandus Khal

Flat Die for Amandus Khal

Custom flat die designed for Amandus Khal pellet mills. High wear resistance and thermal stability.

Type: Flat Die Application: Feed
Roller / Roller Shell

Roller / Roller Shell

High-quality roller shells compatible with major pellet mill brands. Precision-ground for smooth operation.

Material: 40Cr Qty: 100,000+/yr
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Advanced Manufacturing Technology

Our state-of-the-art production line ensures every component meets the highest standards of precision, durability, and performance.

Ring Die Hole Drill Process

CNC-controlled drilling ensures uniform hole diameter, depth, and alignment. Precision from 0.8mm to 16mm with ±0.02mm tolerance.

Heat Treatment

Advanced quenching and tempering processes enhance hardness (HRC 58-62) and wear resistance while maintaining structural integrity.

Fine Lathe Processing

High-precision lathe finishing ensures perfect surface flatness and dimensional accuracy for optimal mill performance.

Automatic Assembly

Automated roller shell assembly ensures consistent quality and tight tolerances for seamless integration into pellet mills.

Quality Inspection

Every product undergoes rigorous testing for hardness, dimensional accuracy, and surface finish before shipment.

Sustainable Practices

We prioritize energy-efficient manufacturing and material recycling to support the global biomass energy revolution.

8,000+

Ring Dies Annually

100K+

Roller Shells

30+

Years Experience

50+

Global Clients

Frequently Asked Questions

What materials are used for your ring dies?

We use high-grade alloy steels such as 20CrMnTi and 40Cr, selected for their excellent wear resistance, toughness, and thermal stability under high-pressure pelletizing conditions.

Can you customize hole diameter and pattern?

Yes, we can manufacture ring dies with hole diameters ranging from 0.8mm to 16mm, and customize hole patterns based on your mill specifications and pellet requirements.

Which brands are your parts compatible with?

Our components are compatible with CPM, Andritz, Buhler, Salmatec, Munch, Amandus Khal, and other major pellet mill brands.

What is the typical lead time for orders?

Standard products are shipped within 7–15 days. Custom orders may take 20–30 days depending on complexity and quantity.

Get in Touch

Reach out to us for product inquiries, custom solutions, or technical support. We're here to help optimize your pellet production.

Contact Information

  • Phone / Mobile:
    +86-13915861696
  • Address:
    No. 26 Zengjia Road, Kunlun Street,
    Liyang City, Jiangsu Province, China

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For full product catalogs, technical drawings, and company updates, please visit our official website.

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