Mn18Cr2 Manganese Steel Roll Shells for Double Roll Crushers

Product Overview

Qirun supplies Mn18Cr2 manganese steel roll shells for double roll crushers used in mining, quarrying, coal processing, and mineral crushing.

Manufactured from wear-resistant high manganese steel, these replacement roll shells offer impact toughness and work-hardening capability under suitable crushing conditions. Mn13Cr2 and Mn18Cr2 material options are available according to the published product information.

Qirun supports custom roll shell dimensions, working surface profiles, and mounting configurations based on customer drawings and crusher specifications.

Technical Specifications

Actual material composition, surface profile, dimensions, weight, manufacturing process and installation requirements must be confirmed against the approved specifications.

Key Features of Mn18Cr2 Roll Shells

1. High Impact Toughness

Mn18Cr2 manganese steel is used for wear components exposed to repeated mechanical loading.

Its tough material structure helps roll shells withstand impact and compression during suitable crushing operations.

Actual performance depends on the selected material grade, casting quality, heat treatment, and operating conditions.

2. Work-Hardening Wear Resistance

High manganese steel can develop increased surface hardness when subjected to sufficient impact and compressive stress.

This work-hardening behavior helps the working surface resist wear while maintaining toughness beneath the surface.

Wear performance varies according to feed abrasiveness, crushing pressure, material chemistry, and equipment configuration.

3. Custom Roll Shell Geometry

Double roll crushers require wear components that match their roller assemblies.

Qirun supports customized roll shell manufacturing according to customer drawings.

Custom requirements may include:

• Outer and inner diameters

• Overall shell length

• Wall thickness

• Working surface profile

• Mounting holes and keyways

• Machined installation surfaces

Surface geometry should be specified according to the actual crusher configuration.

4. Replacement Roll Shell Applications

Roll shells protect the working surfaces of compatible crushing rollers.

As these components wear during operation, replacement may be required to maintain the intended crushing geometry.

Qirun supports replacement manufacturing based on existing part numbers, drawings, and dimensional specifications.

5. OEM Casting and Machining Support

Qirun provides wear-resistant casting services for mining machinery components.

Customers can submit equipment models, material requirements, and technical drawings for manufacturing assessment.

Mn13Cr2 vs. Mn18Cr2 Manganese Steel Roll Shells

Both Mn13Cr2 and Mn18Cr2 belong to the chromium-alloyed high manganese steel family.

Higher manganese content does not automatically guarantee longer wear life. The complete alloy chemistry, heat treatment, impact loading, and material abrasiveness must be considered.

Applications of Manganese Steel Roll Shells

Mining and Mineral Crushing

Double roll crushers are used in selected mining operations to reduce suitable minerals and ores.

Manganese steel roll shells provide replaceable working surfaces for compatible crushing equipment.

Coal Processing

Roll crushers are used in coal preparation and material handling systems.

Roll shell design and material selection depend on feed size, moisture, abrasiveness, and required crushing performance.

Quarry and Aggregate Processing

Quarry operations use roll crushing equipment for selected stone and aggregate applications.

Roll shells are exposed to repeated material contact, compression, and abrasion.

Industrial Material Crushing

Double roll crushers can process suitable industrial minerals and raw materials.

Replacement roll shell dimensions and material grades must match the equipment design and operating requirements.

OEM Crusher Roll Shell Manufacturing

Qirun supports customized replacement roll shell requirements for double roll crushers.

Our services can include:

• Mn13Cr2 and Mn18Cr2 material specifications

• Customized shell dimensions

• Drawing-based replacement manufacturing

• Casting and heat treatment requirements

• Machining of specified installation surfaces

• Mounting configuration adjustments

• Quality inspection according to agreed specifications

Information Required for a Quotation

Please provide:

1. Crusher manufacturer and model

2. Existing roll shell part number

3. Technical drawing or component dimensions

4. Required manganese steel grade

5. Working surface profile

6. Feed material and operating requirements

7. Estimated order quantity

This information helps Qirun review component compatibility and manufacturing requirements.

Request Custom Manganese Steel Roll Shells

Looking for Mn18Cr2 manganese steel roll shells for double roll crushers?

Qirun supplies wear-resistant crusher castings and customized replacement components for mining, quarrying, and mineral processing applications.

Contact us with your crusher model, material requirements, part number, or technical drawings to discuss manufacturing options and quotation details.

Email: vip@qrcrusher.com

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