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Roller Shell Materials

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ROLLER SHELL MATERIALS
Roller Shell Materials

We manufacture roller shells using premium-grade alloy and high carbon steels selected specifically for pelleting applications. Material selection is critical in determining roller shell durability, wear resistance, surface hardness and overall working life.

With decades of experience manufacturing roller shells for feed mills, biomass plants and industrial pelleting applications, we are able to recommend the most suitable material specifications for each customer's operating conditions.

Our roller shell materials are carefully chosen to provide excellent resistance to abrasion, cracking, corrosion and high-pressure operating environments.

All roller shells are precision machined and heat treated to ensure maximum performance and reliability.


COMMON ROLLER SHELL MATERIALS

  • C50 Carbon Steel
    C50 is a widely used medium carbon steel offering good strength, hardness and wear resistance. It is commonly used for standard roller shell applications and provides a good balance between durability and machinability.
  • 100Cr6 Bearing Steel
    100Cr6 is a high carbon chromium alloy steel with excellent hardness and abrasion resistance. This material is commonly used where extended working life and high resistance to wear are required.
  • 20MnCr5 Alloy Steel
    20MnCr5 is a case hardening steel designed for applications requiring a hard wear-resistant surface with a strong and durable core. This material is particularly suitable for heavy-duty pelleting operations.
  • Custom Material Specifications
    We can also manufacture roller shells according to customer's specific material requirements and technical specifications for specialised applications.

HIGH PERFORMANCE MATERIALS

Premium-grade steels and controlled heat treatment processes ensure maximum durability, wear resistance and long operating life for demanding pelleting applications.

ROLLER SHELL MATERIALS

HEAT TREATMENT & SURFACE HARDENING

All roller shells undergo controlled heat treatment and surface hardening processes to maximise wear resistance and extend service life.

Surface hardening improves resistance to abrasion while maintaining core toughness, reducing the risk of cracking or premature failure under heavy operating loads.

Depending on the material and application requirements, different hardening methods and hardness ranges can be applied.


MATERIAL SELECTION FOR DIFFERENT APPLICATIONS

The ideal roller shell material depends on the formulation being processed, operating pressure, production volume and pellet mill configuration.

Applications involving abrasive materials such as biomass, wood waste or mineral-rich formulations may require higher alloy content and increased surface hardness for improved durability.

Our technical team can assist customers in selecting the most suitable roller shell material based on their production requirements and operating conditions.


QUALITY CONTROL

All materials are carefully inspected and verified before manufacturing. Throughout production, roller shells undergo dimensional inspection, hardness testing and quality control checks to ensure consistent manufacturing standards.

Our in-house production process allows us to maintain strict quality control from raw material selection through to final machining and finishing.

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