Ball Mill Composite Components
We specialize in the R&D, production and sales of wear-resistant accessories for mining grinding equipment.In response to the continuous heavy-duty, high-impact and high-abrasion operating characteristics of ball mills, we provide a full range of composite parts for ball mills.
Featuring bimetallic, rubber‑metal and polyurethane‑metal composite structures, our products combine high strength and toughness with excellent wear resistance. They effectively solve the shortcomings of traditional single-metal parts, such as easy cracking, rapid wear, high noise and corrosion in wet grinding.They are widely used in various dry and wet ball mills in metal mines, sand and aggregate processing, building materials, chemical engineering, metallurgy and other industries, significantly extending service life, reducing equipment downtime and lowering maintenance costs.
I. Core Composite Component Series for Ball Mills
We provide a full range of customized composite parts covering the mill shell, compartment separation, inlet & outlet, fastening and sealing systems, based on ball mill structure and working conditions.
1. Composite Liners for Ball Mills
- Rubber‑Metal Composite Liners: Metal frame with highly wear-resistant rubber layer, offering excellent shock absorption, noise reduction and impact resistance, ideal for bulk material impact and wet grinding.
- Bimetallic Composite Liners: Tough substrate bonded with high-chromium alloy wear layer, balancing hardness and toughness, with service life far exceeding ordinary high manganese steel liners.
- Polyurethane Composite Liners: Metal base with polyurethane wear layer, resistant to slurry corrosion and scouring, suitable for fine grinding and slurry applications.
2. Composite Screening Components
- Composite Diaphragm Plates for Ball Mills: Composite structure ensures wear resistance and deformation resistance during material classification, effectively improving grinding efficiency.
- Composite Grate Plates / Screen Plates: Anti-clogging composite structure, resistant to material scouring with longer service life, ideal for fine grinding and grading.
3. Composite Fastening & Clamping Components
- Composite Pressure Bars / Pressure Plates: Metal body with buffer wear layer, providing more stable liner fixing and reducing loosening from impact.
- Composite Wedge Blocks / Locating Blocks: Wear-resistant and deformation-resistant composite material ensures stable liner installation and easy assembly.
- Composite Fasteners: Buffer locking components designed for ball mills, reducing vibration-induced loosening.
4. Composite Inlet/Outlet & Hollow Shaft Components
- Composite Inlet/Outlet Sleeves: Metal matrix with wear-resistant rubber or polyurethane layer, resistant to slurry scouring and corrosion.
- Composite Hollow Shaft Guards: Composite structure protects hollow shafts against impact and wear, extending the service life of transmission parts.
- Composite Feed Hopper / Discharge Hopper Liners: Absorb impact and reduce damage to the equipment body.
5. Composite Sealing & Buffer Components
- Composite Sealing Rings & Retainers: Metal‑flexible material combination ensures strong sealing, preventing slurry leakage and dust ingress.
- End Buffer Components: Absorb vibration and impact, protect the mill shell and transmission system, and reduce operating noise.
II. Core Product Performance Features
Superior Combined Performance from Multi‑Material Integration
Integrate the structural strength of metal with the wear-resistant and cushioning properties of rubber, polyurethane and high‑chromium alloy, achieving high impact resistance, excellent wear resistance and corrosion resistance.
High Impact Resistance & Low Breakage Rate
Composite structure absorbs impact energy from steel balls and ores, greatly reducing chipping, fracture and spalling of liners.
Shock Absorption & Noise Reduction
Flexible composite layers effectively reduce vibration and noise during operation, improving the on-site working environment.
Wide Adaptability to Dry & Wet Grinding
Bimetallic parts for dry grinding; rubber‑metal or polyurethane‑metal parts for wet grinding / slurry conditions.
High Dimensional Accuracy & Easy Replacement
Manufactured to original equipment dimensions, directly replaceable with traditional metal parts without modification, simple to install and maintain.
Longer Service Life & Higher Cost Performance
Compared with conventional high manganese steel parts, service life is increased by 30%–120%, reducing replacement frequency and overall operating costs.
III. Application Scope
- Applicable Equipment: Overflow ball mills, grate ball mills, dry ball mills, wet ball mills, mineral processing ball mills.
- Applicable Industries: Non-ferrous metal mines, ferrous metal mines, sand & aggregate, cement & building materials, chemical engineering, metallurgy.
- Applicable Conditions: Dry/wet grinding, high-hardness ore milling, high-impact continuous operation, corrosive slurry environments, noise‑sensitive sites.
IV. Core Advantages of Hainan Sikejia Mining Equipment
Mature Composite Forming Technology
High-temperature vulcanization, metallurgical bonding and other processes ensure firm adhesion between different materials, no delamination or cracking under long-term operation.
Strong Working Condition Customization Capability
Customize materials and structures according to ore hardness, grinding method and equipment model to provide tailored wear protection solutions.
High Machining Precision & Good Compatibility
CNC finishing and moulding ensure tight dimensional tolerances, compatible with domestic and imported ball mills of all brands.
Sufficient Stock + Rapid Customization
Regular composite liners, pressure bars and seals in stock; large non-standard composite parts with short production lead times for emergency repairs.
Factory Direct Supply & Comprehensive After-Sales
Direct source production with no middleman margins, quality warranty, and free technical support for selection and installation.
V. Customization & Service Support
- Customization of all types of ball mill composite parts based on equipment model, drawings, samples or on-site measurement.
- Free full-process technical guidance for material selection, working condition optimization, installation and maintenance.
- Long-term fixed supporting supply for mining enterprises with dedicated inventory and priority production.
- Official quality warranty; after-sales support for non-artificial quality defects.
VI. FAQ
What are the advantages of composite parts over ordinary metal parts for ball mills?
Composite parts combine toughness and wear resistance, resist impact without cracking, offer better corrosion resistance in wet grinding, reduce vibration and noise, and deliver longer service life and improved performance.
Will composite liners delaminate during operation?
Our integrated composite forming technology ensures high bonding strength. No delamination or spalling occurs under normal working conditions.
Can composite parts be used in both dry and wet ball mills?
Yes. Bimetallic composite parts are recommended for dry grinding; rubber‑metal or polyurethane‑metal parts for wet grinding / slurry environments. We provide tailored solutions.
What information is required for customizing ball mill composite parts?
We can quickly complete design, quotation and production upon receiving the ball mill model, part dimensions, drawings or samples.




