You are here: Home » Products » Crusher Casting Parts » Ball Mill Parts » Mn18Cr2 Toothed Roll Shells for Coal & Limestone Crushers

loading

Mn18Cr2 Toothed Roll Shells for Coal & Limestone Crushers

Wear-Resistant Manganese Steel Roll Shells for Industrial Crushing
  • Material: Mn18Cr2 High Manganese Steel
  • Product Type: Toothed Crusher Roll Shells
  • Performance: Impact Toughness & Work-Hardening Capability
  • Applications: Coal, Limestone & Mineral Crushing
  • Crusher Type: Compatible Toothed Double Roll Crushers
  • OEM Service: Custom Tooth Profiles, Shell Dimensions & Drawings
Request a Quote | Send Your Drawings
Availability:
Quantity:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button

Product Overview

Qirun supplies Mn18Cr2 manganese steel toothed roll shells for coal, limestone, and mineral crushing applications. These wear-resistant castings are designed for compatible toothed roll crushers, where the working teeth grip and fracture incoming materials through compression and shearing forces.

Mn18Cr2 high manganese steel offers impact toughness and work-hardening capability under suitable crushing conditions. Qirun supports custom tooth profiles, shell dimensions, and mounting configurations based on crusher models, technical drawings, and replacement part requirements.

Technical Specifications

Parameter

Specification

Product Name

Mn18Cr2 Toothed Roll Shells

Brand

Qirun

Main Material

Mn18Cr2 High Manganese Steel

Product Category

Double Roller Crusher Parts

Product Type

Toothed Roll Crusher Shell

Equipment

Compatible Toothed Roll Crushers

Material Properties

Impact Toughness, Work Hardening, Wear Resistance

Shell Outer Diameter

According to Customer Drawings

Shell Inner Diameter

According to Customer Drawings

Shell Length

Customized

Tooth Height & Pitch

According to Crusher Design

Mounting Configuration

According to Roll Assembly

Manufacturing

Casting, Heat Treatment & Machining as Required

Applications

Coal, Limestone & Mineral Crushing

OEM Support

Custom Tooth Profiles, Dimensions & Replacement Castings

Inspection

Material and Dimensional Checks as Agreed

Final dimensions, material composition, installation requirements, weight, and compatible crusher models must be confirmed according to approved technical drawings.

Key Features of Mn18Cr2 Toothed Roll Shells

1. High Impact Toughness

Mn18Cr2 manganese steel provides toughness for crusher components exposed to repeated mechanical loading.

This material is suitable for selected roll crushing applications where impact and compression are significant operating factors.

Appropriate casting quality and heat treatment help develop the material properties required for demanding crushing environments.

2. Work-Hardening Wear Resistance

High manganese steel can increase its working surface hardness under sufficient repeated impact and compressive stress.

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

Actual performance depends on crushing pressure, feed material, alloy composition, and operating conditions.

3. Customized Crushing Teeth

The toothed surface helps grip incoming feed and draw material into the crushing zone.

Qirun supports custom tooth configurations according to crusher design requirements.

Available customization specifications may include:

  • Tooth height and pitch

  • Tooth width and spacing

  • Tooth working face geometry

  • Shell thickness and overall dimensions

  • Mounting surfaces and installation features

The final tooth profile should match the crusher configuration and required feed characteristics.

4. Replacement Roll Shell Construction

Toothed roll shells are installed on compatible crusher roll assemblies.

Their internal dimensions and mounting features must match the existing equipment.

Qirun supports replacement casting requirements based on original component drawings, dimensions, and customer specifications.

5. OEM Manufacturing Support

Qirun provides custom manganese steel casting and machining support for crusher wear components.

Customers can submit roll shell drawings, crusher models, or existing part specifications for technical review.

Mn18Cr2 Manganese Steel Properties

Mn18Cr2 is a chromium-alloyed high manganese steel used in selected impact-resistant wear components.

Its main characteristics include impact toughness and the ability to develop surface hardness under appropriate loading conditions.

Mn18Cr2 vs. High Chromium Cast Iron

Feature

Mn18Cr2 Manganese Steel

High Chromium Cast Iron

Main Advantage

Impact Toughness

Abrasion Resistance

Work-Hardening Capability

Yes

Not the Primary Wear Mechanism

Impact Tolerance

Generally Higher

Generally Lower

Wear Behavior

Benefits from Impact and Compression

Benefits from Hard Chromium Carbides

Application Focus

Impact-Intensive Crushing

Selected Abrasive Crushing Conditions

Material Selection

Based on Load and Work-Hardening Conditions

Based on Abrasion and Impact Limits

Material performance depends on specific chemical composition, heat treatment, crusher design, and operating conditions.

Custom Toothed Roll Shell Manufacturing

Qirun provides OEM manufacturing support for manganese steel toothed roll shells.

Our customization services can include:

  • Mn18Cr2 material specifications

  • Custom outer and inner diameters

  • Shell length and thickness requirements

  • Tooth profiles, heights, and spacing

  • Mounting holes, keyways, and installation surfaces

  • Replacement components based on technical drawings

  • Heat treatment and machining requirements

  • Inspection according to agreed specifications

Information Required for a Quotation

Please provide the following details:

  1. Crusher manufacturer and model

  2. Existing roll shell drawing or part number

  3. Outer diameter, inner diameter, and shell length

  4. Tooth height, tooth pitch, and tooth profile

  5. Required material grade

  6. Feed material and crushing application

  7. Estimated order quantity and delivery requirements

These details help Qirun evaluate component compatibility and manufacturing specifications.

Request Custom Mn18Cr2 Toothed Roll Shells

Looking for wear-resistant toothed roll shells for coal or limestone crushers?

Qirun supplies Mn18Cr2 manganese steel crusher castings and customized replacement roll shells for mining and industrial crushing applications.

Send us your crusher model, roll shell drawings, tooth specifications, or material requirements to discuss OEM manufacturing and quotation details.

Email: vip@qrcrusher.com

Request a Quote | Send Your Drawings

Applications of Mn18Cr2 Toothed Roll Shells

Coal Crushing and Processing

Toothed roll crushers are used in coal handling and processing operations to reduce oversized coal into smaller material fractions.

The crushing teeth grip incoming material and apply compression and shearing forces.

Mn18Cr2 roll shells provide a wear-resistant option for suitable coal crushing conditions, particularly where mechanical loading is sufficient to support work hardening.

Limestone Crushing

Limestone processing plants use toothed roll crushers in selected crushing systems.

Roll shell tooth geometry is important for material engagement, reduction behavior, and wear distribution.

Qirun supports customized shell dimensions and tooth arrangements according to the crusher configuration and limestone feed requirements.

Industrial Mineral Processing

Toothed roll crushers are also used for selected industrial minerals and other crushable raw materials.

Wear component requirements vary according to particle size, abrasiveness, feed moisture, and crusher operating conditions.

Mining Material Preparation

Mining operations may use roll crushing equipment in preparation and material handling stages.

Replacement toothed roll shells help maintain the crusher's intended working geometry as components wear during operation.

Frequently Asked Questions

What are Mn18Cr2 toothed roll shells used for?

Mn18Cr2 toothed roll shells are wear-resistant components used in compatible toothed roll crushers for applications such as coal, limestone, and mineral crushing.

What is the advantage of Mn18Cr2 manganese steel?

Mn18Cr2 offers impact toughness and work-hardening capability. Under suitable mechanical loading, its working surface can become harder while retaining toughness beneath the surface.

Are these roll shells suitable for coal crushing?

They may be suitable for selected coal crushing applications where the crusher design and operating conditions are appropriate. Material suitability should be confirmed against the actual equipment and feed characteristics.

Can Mn18Cr2 toothed roll shells be used for limestone?

Yes, they can be considered for suitable limestone crushing equipment. The best material and tooth profile depend on the limestone characteristics and crushing conditions.

Can the tooth profile be customized?

Yes. Qirun supports custom tooth geometry, dimensions, and mounting specifications according to customer drawings.

What is the difference between toothed roll shells and smooth roll shells?

Toothed roll shells use protruding teeth to grip and fracture feed materials through compression and shearing. Smooth roll shells rely mainly on compression between their working surfaces.

Are the roll shells compatible with all double roll crushers?

No. Shell dimensions, mounting features, tooth profiles, and material specifications differ between crusher models. Compatibility must be confirmed before ordering.

What information is required for a quotation?

Please provide the crusher model, roll shell drawing or dimensions, tooth specifications, material requirements, and estimated order quantity.

Previous: 
Next: 

Product Category

Shuangfeng Qirun Machinery Parts Imp&Exp Co., Ltd. is a professional wear-resistant parts production enterprise.
We have domestically leading sand mold and lost mold casting production line.

QUICK LINKS

PRODUCTS CATEGORY

CONTACT US

JAMIE LV
Tel: +86-158-7428-2081
Landline: +86-731-8636-8522
WhatsApp: +8615874282081
Skype: jamielv1118
Copyright © 2025 Shuangfeng Qirun Machinery Parts Imp&Exp Co., Ltd. All Rights Reserved. | Sitemap | Privacy Policy