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High Pressure Grinding Rolls

High-pressure particle-bed comminution. Roll surface studs and tyres carry extreme compressive loads; cemented carbide studs are a key wear-life consideration.

High Pressure Grinding Rolls

Equipment Section View

High Pressure Grinding Rolls cutaway part location diagram
High Pressure Grinding Rolls cutaway part location diagram

High-pressure grinding rolls comprise a fixed roll, floating roll, main bearings, hydraulic loading system, supporting frame and feed and discharge arrangements. Material is compressed in a particle bed between counter-rotating rolls. Confirm roll diameter, width, capacity and operating pressure for the model, ore properties and feed conditions.

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

Roll Surface / Tyre
01

Roll Surface / Tyre

Roll Surface / Roller Tyre

Material Options
Alloy steel roll body with tungsten carbide studs, or a wear-resistant hardfacing layer
Technical Requirements
Hardfaced working layer: typically approximately 58—65 HRC. Prioritize resistance to spalling and impact, together with repairability.
Studs / Roll Studs
02

Studs / Roll Studs

Stud / Roller Stud

Material Options
WC-Co Cemented Carbide
Technical Requirements
Typically approximately 88—92 HRA. Consider transverse rupture strength; select cobalt content and grade for the impact loading imposed by the ore.
Edge Guard
03

Edge Guard

Edge Protection / Edge Liner

Material Options
High-chromium white iron, cemented carbide composites or hardfaced steel
Technical Requirements
High-chromium cast iron: commonly approximately 58—65 HRC. Control edge chipping and wear from material bypass.
Side Guard
04

Side Guard

Cheek Plate / Side Liner

Material Options
High-chromium white iron, bimetallic composite plate or NM450/NM500
Technical Requirements
Wear-resistant steel: a typical candidate hardness range of approximately 450—540 HBW. Consider impact resistance and ease of replacement.
Feed Chute Liner
05

Feed Chute Liner

Feed Chute Liner

Material Options
NM450/NM500, bimetallic composite liners or high-chromium cast iron
Technical Requirements
Consider tough wear-resistant steel for heavy feed impact and high-chromium composite liners where erosion predominates.
Discharge Chute Liners
06

Discharge Chute Liners

Discharge Chute Liner

Material Options
NM400—NM500, ceramic-rubber composite panels or bimetallic liners
Technical Requirements
Address erosion by compacted material and buildup, and provide for sectional replacement.
Bearing / Bearing Seal
07

Bearing / Bearing Seal

Bearing / Bearing Seal

Material Options
GCr15/100Cr6 bearing steel; NBR, HNBR or FKM seals
Technical Requirements
Raceway: commonly approximately 60—64 HRC. Select seal materials for temperature, grease compatibility and dust exposure.
Hydraulic Cylinder Seal
08

Hydraulic Cylinder Seal

Hydraulic Cylinder Seal

Material Options
Polyurethane primary seals with NBR/FKM secondary seals
Technical Requirements
PU: commonly approximately 90—95 Shore A. Control pressure resistance, extrusion gaps, wear resistance and leakage.
Scraper / Cleaner
09

Scraper / Cleaner

Scraper / Cleaner

Material Options
Wear-resistant polyurethane, wear-resistant rubber or hardfaced steel scrapers
Technical Requirements
Elastomer scraper blades: commonly approximately 85—95 Shore A. Adjust installation clearance according to the equipment manual.
Frame Liners
10

Frame Liners

Press Frame Liner

Material Options
NM400/NM450/NM500 or bimetallic wear plate
Technical Requirements
Typical candidate hardness: approximately 400—540 HBW. Use removable sections to protect the underlying frame.

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.

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

FLS thyssenkrupp Mining Technologies (legacy)

Request a High Pressure Grinding Rolls Wear Parts Proposal

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Manufacturing Services in China

From Technical Assessment to Finished-Part Delivery

ANRANST provides customers worldwide with coordinated consulting, supplier sourcing, quality control and finished-part delivery for custom parts, wear parts and industrial spares from China, with scope to support other custom industrial parts.

01

Technical Advice

Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.

02

Supplier Introductions

Match requirements with suitable manufacturers in China and coordinate the exchange of technical information.

03

Quality Control

Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.

04

Finished-Part Delivery

Coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts.

Provide the existing model, drawings, drawing or part numbers, materials or operating conditions so we can identify the appropriate technical review and supply route.

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