Ball mill steel-rubber composite lining

Mining Industry

Slurry transportation

Tailings systems

Cyclone feed pipelines

Mineral Processing Plants

Sand and gravel transport

Ore concentrate pipelines

Dredging Industry

Sand slurry transportation

River dredging systems

Chemical Industry

Corrosive slurry transfer

Power Plants

Ash slurry transportation

Aggregate & Cement Plants

Polyurethane Pipe VS Steel Pipe

Advantages of Polyurethane Pipes

• Excellent Wear Resistance：Polyurethane offers significantly better abrasion resistance than steel and rubber under severe slurry conditions.
• Long Service Life：Reduced wear results in lower replacement frequency and maintenance costs.
• Lightweight Structure：Easy transportation and installation compared with steel pipelines.
• Impact Resistance：High elasticity absorbs impact energy from abrasive particles.
• Corrosion Resistance：Suitable for corrosive and wet working environments.
• Energy Saving：Smooth inner surface reduces flow resistance.
• Noise Reduction：PU material absorbs vibration and operating noise.

Working Condition Analysis

• Proper liner selection requires analysis of:
• Ore abrasiveness
• Ore hardness
• Ore particle size
• Grinding media size
• Mill speed
• Slurry concentration
• Impact intensity
• Throughput capacity
• Wet or dry grinding conditions
• Different grinding conditions require different:
• Rubber hardness
• Liner thickness
• Steel reinforcement structure
• Lifter bar profile
• Wear-resistant formulation

Rubber Material Options

• Natural Rubber
• Excellent elasticity
• Good impact absorption
• Suitable for wet grinding systems
• High Wear-Resistant Rubber
• Improved abrasion resistance
• Suitable for severe wear conditions
• Special Composite Rubber
• Optimized for high-impact mining applications

Customized Solutions

• Large engineering flowchart section
• Fully Customized Mill Liner Solutions
• All steel-rubber composite mill liners are custom-engineered according to the customer’s grinding system and operating conditions.
• We support:
• OEM manufacturing
• Production according to drawings
• Reverse engineering from used liners
• Complete liner system design
• Mill liner optimization
• Wear life improvement solutions

Information Required for Engineering Analysis

• Basic Mill Information
• Mill diameter
• Mill length
• Mill speed
• Mill type
• Ore & Grinding Information
• Ore type
• Ore hardness
• Ore abrasiveness
• Particle size
• Grinding media size
• Liner Technical Requirements
• Liner thickness
• Hardness requirements
• Wear resistance requirements
• Existing liner drawings
• Operating life expectations
• Operating Conditions
• Wet or dry grinding
• Throughput capacity
• Slurry concentration
• Impact load conditions

Engineering Support

• Our technical team provides:
• Grinding condition analysis
• Material recommendations
• Liner layout optimization
• Installation guidance
• Drawing support
• Service life optimization

Factory photos + QC checklist

• Manufacturing Capacity
• We specialize in mining wear-resistant mill liner manufacturing.
• Main Production Capabilities
• Steel fabrication
• Rubber vulcanization
• Composite bonding
• CNC machining
• Mold manufacturing
• Customized liner production

Quality Control

• Every polyurethane pipe undergoes:
• Raw material inspection
• Hardness testing
• Dimension inspection
• Tensile testing
• Adhesion testing
• Appearance inspection

Production Advantages

• Advanced steel-rubber bonding technology
• Experienced engineering team
• Stable production quality
• OEM manufacturing capability
• Export experience worldwide

Service Life

• Steel-rubber composite liners are designed for high-impact abrasive grinding systems.
• Compared with traditional steel liners:
• Reduced vibration damage
• Lower maintenance frequency
• Improved operational stability
• Better grinding efficiency
• Actual service life depends on:
• Ore abrasiveness
• Grinding media size
• Impact intensity
• Mill operating conditions
• Installation quality

TechnicalTechnical Support

Copper Mine Grinding Project – Central Asia

Steel-rubber composite liners used in large wet grinding systems.

Gold Ore Processing Plant – Africa

Composite liners used in secondary grinding circuits with abrasive ore conditions.

Iron Ore Grinding System – South America

Heavy-duty composite liners used in high-capacity ball mills.

Cement Grinding Plant – Southeast Asia