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Qirun supplies Mn18Cr2 manganese steel toothed roll shells for double roll crushers used in mining, coal processing, quarrying, and industrial material crushing.
Manufactured from high manganese steel, these wear-resistant roll shells combine impact toughness with work-hardening capability. Their toothed surfaces help grip and fracture large feed materials during coarse crushing.
Qirun supports custom roll shell dimensions, tooth profiles, and mounting configurations based on customer drawings and crusher specifications. Our products are suitable for replacement wear part requirements and OEM crusher casting projects.
Parameter | Specification |
|---|---|
Product Name | Mn18Cr2 Toothed Roll Shells |
Brand | Qirun |
Material | Mn18Cr2 High Manganese Steel |
Product Type | Toothed Crusher Roll Shell |
Equipment | Double Roll Crushers / Toothed Roll Crushers |
Main Properties | Impact Toughness, Work Hardening, Wear Resistance |
Tooth Configuration | According to Crusher Design |
Tooth Profiles | Square, Wedge or Custom Profiles |
Shell Dimensions | According to Technical Drawings |
Mounting Features | Customized to Existing Roll Assembly |
Manufacturing | Casting, Heat Treatment and Machining as Required |
Applications | Coal, Limestone, Gypsum and Suitable Mineral Materials |
Customization | Material Specifications, Tooth Geometry, Dimensions |
Inspection | Composition, Dimensions and Casting Quality as Agreed |
Final dimensions, material composition, tooth geometry, weight and installation requirements are confirmed according to the customer's technical drawings.
Mn18Cr2 high manganese steel provides toughness for crusher components exposed to repeated compressive and impact loads.
This characteristic is useful for toothed roll shells working with coarse feed materials.
Appropriate material selection and heat treatment help reduce the risk of premature cracking under suitable operating conditions.
High manganese steel can develop increased surface hardness when subjected to sufficient impact and compressive loading.
This work-hardening behavior helps the working teeth resist wear during repeated crushing operations.
Actual wear performance depends on feed abrasiveness, crushing force, tooth geometry and operating conditions.
The toothed roll shell is designed to engage incoming feed and draw it into the crushing zone.
Its tooth geometry contributes to material gripping and fracture during the crushing process.
Depending on the crusher design, available profiles may include:
Square tooth profiles
Wedge-shaped teeth
Custom coarse crushing teeth
Customer-specified tooth arrangements
Tooth dimensions and spacing must match the crusher configuration and intended feed characteristics.
Mn18Cr2 toothed roll shells are designed for selected coarse crushing applications involving repeated mechanical loading.
They can be used in suitable equipment processing coal, limestone, gypsum and other mineral materials.
Material compatibility should be reviewed according to feed size, abrasiveness and operating conditions.
Different crushers require different shell dimensions, tooth arrangements and mounting structures.
Qirun provides custom manufacturing support based on technical drawings.
Available customization requirements may include:
Outer diameter and inner diameter
Shell length and wall thickness
Tooth height and pitch
Mounting holes and keyways
Contact surfaces and machining requirements
Casting weight and material specifications
Mn18Cr2 is a chromium-alloyed high manganese steel grade used in impact-resistant wear components.
The material offers a combination of toughness and work-hardening capability.
Its suitability depends on the applied crushing load, alloy composition and heat treatment conditions.
Feature | Mn18Cr2 Manganese Steel | High Chromium Cast Iron |
|---|---|---|
Main Advantage | Impact Toughness | Abrasion Resistance |
Work-Hardening Capability | Yes | Not a primary wear mechanism |
Impact Tolerance | Generally Higher | Generally Lower |
Wear Characteristics | Benefits from sufficient impact and compression | Benefits from hard chromium carbides |
Typical Application | Heavy-duty toothed crushing | Selected abrasive crushing applications |
Material Selection | High impact and compression requirements | Abrasion-dominant conditions with controlled impact |
Material selection should be based on actual crusher operating conditions. Neither alloy is universally superior in all crushing applications.
Qirun supports custom manufacturing of toothed crusher roll shells according to customer equipment requirements.
Our services can include:
Mn18Cr2 manganese steel casting
Custom shell diameters and lengths
Tooth height, pitch and profile customization
Replacement components based on drawings
Machining of mounting and contact surfaces
Heat treatment according to material requirements
Inspection according to agreed specifications
Please provide:
Crusher manufacturer and model
Existing roll shell drawing or part number
Shell outer diameter, inner diameter and length
Tooth profile, height and pitch
Required material grade
Feed material and operating conditions
Estimated order quantity
This information allows Qirun to review manufacturing feasibility and dimensional requirements.
Looking for heavy-duty toothed roll shells for your double roll crusher?
Qirun supplies manganese steel crusher wear parts and customized replacement castings for mining, coal processing and mineral crushing applications.
Send us your crusher model, roll shell drawings, tooth specifications or material requirements. Our team can review your needs and provide a manufacturing quotation.
Email: vip@qrcrusher.com
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