Toothed Roll Crusher / Sizer

Mineral sizers use low-speed toothed rolls to shear, split and size material, with the breaking action depending on tooth and machine design. Related MMD series include 500/625/750/1000/1300/1500. Applications include coal, limestone, gypsum, phosphate, bauxite and oil sands; confirm capacity and product size for the material and installed configuration.

Toothed Roll Crusher / Sizer

Mineral sizers use low-speed toothed rolls to shear, split and size material, with the breaking action depending on tooth and machine design. Related MMD series include 500/625/750/1000/1300/1500. Applications include coal, limestone, gypsum, phosphate, bauxite and oil sands; confirm capacity and product size for the material and installed configuration.

Equipment Parts

Part Identification and Technical Details

Explore part names, images, material options and technical requirements. Select a card to open the corresponding replacement part page.

Major Components and Assemblies

Major Components and Assemblies

Individual and Maintenance Parts

Individual and Maintenance Parts

01

Crushing Tooth / Tooth Segment

Crusher Tooth / Segment

Material Options
ZGMn18Cr2 manganese steel / high-chromium cast iron / bimetal composites
Installation and Function
Removable, replaceable toothed part that directly breaks the mineral feed
Maintenance Category
Very High
02

Tooth Segment Retaining Bolt

Tooth Segment Bolt

Material Options
42CrMo Alloy Steel
Installation and Function
Secures the tooth segments to the toothed roll
Maintenance Category
ZH
03

Roll Bodies

Roll Shell / Drum

Material Options
42CrMo alloy steel / hardfaced carbon steel
Installation and Function
Cylindrical body that supports the tooth segments
Maintenance Category
ZH
04

Toothed Roll Shaft

Roll Shaft

Material Options
42CrMo / 40CrNiMo
Installation and Function
Drives the toothed rolls
Maintenance Category
Low
05

Side Liner / End Plate

Side Liner / End Plate

Material Options
High-Manganese Steel / Hardox 500
Installation and Function
Protects the side walls of the crushing chamber
Maintenance Category
ZH
06

Base Liners

Bottom Liner / Base Plate

Material Options
Hardox 500 / Manganese Steel
Installation and Function
Protects the bottom of the crushing chamber
Maintenance Category
ZH
Gearbox
07

Gearbox

Gear / Drive Gearbox

Material Options
Case-carburized and hardened alloy steel
Installation and Function
Synchronizes the rotation of the two toothed rolls
Maintenance Category
Low
08

Bearing / Bearing Housing

Bearing / Bearing Housing

Material Options
Bearing steel / cast steel
Installation and Function
Supports the toothed roll shaft
Maintenance Category
Low
09

Scraper / Cleaner

Scraper / Cleaner

Material Options
Wear-Resistant Steel Plate
Installation and Function
Removes material adhering between the toothed rolls
Maintenance Category
ZH
10

Fluid Couplings

Hydraulic Coupling

Material Options
Aluminium alloy / steel
Installation and Function
Overload protection and power transmission
Maintenance Category
Low
11

Adjustment Shim

Adjustment Shim

Material Options
Stainless Steel
Installation and Function
Adjusts the gap between the toothed rolls
Maintenance Category
Low

Materials for similarly named parts may differ by OEM, machine model and operating conditions. Confirm the machine model, OEM drawing number and measured dimensions before ordering or manufacture.

Material Information

  • ZGMn18Cr2 manganese steel: a work-hardening candidate for sizer teeth. Suitability depends on impact energy, abrasiveness and tooth construction.
  • Cr26 high-chromium cast iron: a tooth material candidate for low-impact, highly abrasive service, with a candidate hardness of HRC 60-65 subject to the part specification.
  • Bimetallic construction: a high-chromium cast iron tooth crown on a forged steel base, combining abrasion resistance with base toughness.
  • Hardox 500/600: candidate wear-resistant plate grades for side and bottom liners. Confirm the hardness range for the specific product, thickness and material certificate.

Brand Applicability

Related equipment brands include MMD Group, FLS ABON, TAKRAF, McLanahan, Gundlach, CITIC and EXCT. Check parts separately for the actual toothed-roll, sizer or multi-roll configuration.

Industry Applications

Run-of-mine coal, limestone and gypsum crushing, bauxite and phosphate crushing, oil sands sizing, railway ballast processing and coke crushing

Materials for similarly named parts may differ by OEM, machine model and operating conditions. Confirm the machine model, OEM drawing number and measured dimensions before ordering or manufacture.

Equipment Manufacturers and Series

Request a Toothed-Roll Crusher / Sizer Wear Parts Proposal

Provide the machine model, operating conditions and target service life so our engineers can recommend materials and prepare a quotation.

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01

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02

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03

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04

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