Eccentric Roll Crusher

The Eccentric Roll Crusher (ERC), developed by thyssenkrupp Mining, is now in the FLS portfolio. An eccentric roll and crushing wall form the crushing zone, while an integrated screen bypasses fines. Its compact design suits underground and mobile layouts; capacity and product size depend on the model and duty.

Eccentric Roll Crusher

The Eccentric Roll Crusher (ERC), developed by thyssenkrupp Mining, is now in the FLS portfolio. An eccentric roll and crushing wall form the crushing zone, while an integrated screen bypasses fines. Its compact design suits underground and mobile layouts; capacity and product size depend on the model and duty.

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

Roll Shell / Roller Surface

Roll Shell / Roller Surface

Material Options
ZGMn18Cr2 manganese steel / high-chromium cast iron / hardfaced composites
Installation and Function
The outer wear surface of the roll in direct contact with the material
Maintenance Category
Very High
02

Roll Shell Segment

Roll Shell Segment

Material Options
Manganese steel / high-chromium cast iron
Installation and Function
Roll surface with individually replaceable segments
Maintenance Category
High
03

Crushing Jaw / Swing Jaw

Crushing Jaw / Swing Jaw

Material Options
ZGMn18Cr2 manganese steel
Installation and Function
Jaw that compresses material against the roll
Maintenance Category
High
04

Fixed Jaw Plates

Fixed Jaw / Counter Jaw

Material Options
ZGMn18Cr2 manganese steel
Installation and Function
Jaw plate on the fixed side
Maintenance Category
High
05

Side Liner / Cheek Plate

Side Liner / Cheek Plate

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

Eccentric Shafts

Eccentric Shaft

Material Options
42CrMoMo / 40CrNiMo
Installation and Function
Drives the eccentric motion of the roll
Maintenance Category
Low
07

Bearing / Bearing Bushing

Bearing / Bearing Bushing

Material Options
Copper alloy / Babbitt metal
Installation and Function
Supports the eccentric shaft
Maintenance Category
Low
08

Hydraulic Cylinder / Tension Rod

Hydraulic Cylinder / Tension Rod

Material Options
Alloy steel / hydraulic parts
Installation and Function
Discharge setting adjustment and overload protection
Maintenance Category
Low
09

Feed Chute Liner

Feed Chute Liner

Material Options
Hardox 400
Installation and Function
Protects the feed area
Maintenance Category
ZH
10

Discharge Chute Liners

Discharge Chute Liner

Material Options
Hardox 400
Installation and Function
Protects the discharge area
Maintenance Category
ZH

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 is a candidate material for roll shells and crushing walls. Confirm the grade, heat treatment and in-service hardness against part drawings and operating conditions.
  • Cr26 high-chromium cast iron: a candidate roll-surface material for low-impact, highly abrasive duties.
  • Hardfaced composite: a chromium carbide wear overlay on the roll surface, with repair subject to the approved procedure.
  • Hardox 500: side and housing liners.

Brand Applicability

FLS ERC 18-14 / 22-20 / 25-25 / 25-30 / 25-34 range; identify legacy thyssenkrupp Mining installations by nameplate.

Industry Applications

Primary crushing of gold, copper and iron ores; underground and mobile crushing stations; aggregate production; and cement raw-material 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 eccentric roll crusher wear parts

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01

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02

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03

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04

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