Grate Cooler

Grate coolers cool clinker discharged from cement rotary kilns and recover heat through secondary and tertiary air streams. Designs include reciprocating grates and fixed grate floors with separate conveying mechanisms. Identify wear parts for the actual cooling, conveying and crushing configuration.

Equipment Section View

Grate Cooler cutaway part location diagram

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.

Individual parts

Individual and Maintenance Parts

Grate Plate / Grate Bar

Material Options: Heat-resistant cast steel ZG40Cr25Ni20 / ZG35Cr26Ni12
Installation and Function: Grate plate that supports and cools the clinker

Side Plate

Material Options: Heat-resistant cast steel ZG40Cr25Ni20
Installation and Function: Wear plates on both sides of the grate bed

Grate Support Beam

Material Options: Heat-resistant cast steel / carbon steel
Installation and Function: Beam structure that supports the grate plates

Hopper Discharge Valve

Material Options: High-chromium cast iron / wear-resistant steel plate
Installation and Function: Discharge valve for the hopper beneath the grate

Clinker Crusher Hammer

Material Options: Mn18Cr2 manganese steel / high-chromium cast iron
Installation and Function: Hammer that breaks large clinker pieces at the discharge end of the grate cooler

Crusher Breaker Plate

Crusher Impact Plate

Material Options: High-Manganese Steel / Wear-Resistant Steel Plate
Installation and Function: Impact plate for the clinker crusher

Drag Chain Link

Material Options: Alloy steel / stainless steel
Installation and Function: Drag conveyor chain beneath the grate

Drag Chain Conveyor Flight

Drag Chain Flight

Material Options: High-Manganese Steel / Hardox 400
Installation and Function: Scraper flight for a drag chain conveyor

Air Beam Duct Liner

Material Options: Stainless steel / wear-resistant ceramics
Installation and Function: Protects the ducts in an air beam grate cooler

Sealing Strip

Material Options: Heat-resistant alloy / graphite packing
Installation and Function: Seal between the grate bed and housing

Hydraulic Cylinder Seal

Material Options: Polyurethane / fluoroelastomer
Installation and Function: Seal for the hydraulic drive system

Guide Roller

Roller Guide

Material Options: Alloy Steel 42CrMo
Installation and Function: Guides grate bed movement

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

Material Information

ZG40Cr25Ni20: a candidate heat-resistant cast steel grade. Assess suitability from the applicable material standard, casting thickness, metal temperature and atmosphere. Clinker temperature is not the casting's allowable service temperature.
ZG35Cr26Ni12: a candidate heat-resistant cast steel grade. Specify composition, heat treatment and operating temperature range from the part drawing and material standard.
High-chromium cast iron (Cr26): an abrasion-resistant candidate for clinker crusher hammers.
Mn18Cr2 manganese steel: a work-hardening candidate for impact-loaded clinker crusher parts.
Hardox 400: wear-resistant plate for chain conveyor flights and liners in lower-temperature areas.

Brand Applicability

IKN (IKN GmbH), FLSmidth (Coolax/Cross-Bar), thyssenkrupp (POLYTRACK), Claudius Peters, CITIC, Sinoma

Industry Applications

Cement clinker cooling. Select parts separately for other materials and cooler designs.