Metal Components for SAG Mills
JCH-TIKTOP specializes in the R&D, production and sales of accessories for large-scale mining grinding equipment. In response to the harsh operating conditions of semi-autogenous (SAG) mills featuring high impact, severe abrasion, and mixed grinding of bulk materials and steel balls, we professionally manufacture a full range of metal components for SAG mills.
All products are made of high manganese steel, high-chromium alloy and special alloy steel, formed through precision casting and water toughening heat treatment. They feature high structural strength, impact resistance, non-cracking property and long wear life, perfectly suitable for various large-scale wet and dry SAG mills. They are widely used in large mining grinding sections of non-ferrous metals, ferrous metals, sand and aggregate, etc.
I. Core Metal Component Series for SAG Mills
Liner Components (Core Wear Parts)
- Shell Liners: Installed on the inner wall of the mill shell to resist impact and abrasion from steel balls and ores. Available in wedge, bar and wave types. Made of Mn13, Mn18Cr2 high manganese steel with excellent impact hardening and toughness.
- Head Liners / Feed End Liners: Protect the front and rear heads of the mill, with a structure matching the shell curvature for even stress distribution and high crack resistance.
- Discharge End Liners: Adapted to discharge conditions, balancing wear resistance and smooth material flow to prevent blockage and deformation.
Grate & Diaphragm Plates
- Discharge Grates / Diaphragm Plates: Separate qualified pulp from steel balls and coarse particles with rational openings for smooth flow. Cast from high-chromium alloy for wear resistance and dimensional stability.
- Compartment Grates: Used for staged grinding with high strength and impact resistance to ensure orderly material passage.
Lifting & Clamping Components
- Lifting Bars (Lifter Bars): Mounted between liners to lift steel balls and ores for improved grinding efficiency. High-alloy material provides impact resistance and resistance to breakage.
- Pressure Bars, Clamping Blocks & Wedge Blocks: Secure liners to prevent loosening and displacement during operation, featuring strong locking force and high strength.
Fastening & Structural Components
- Special Bolts for SAG Mills: Made of high-strength alloy steel with high tensile and shear strength, suitable for heavy-duty vibrating conditions without breakage or loosening.
- Sealing Gaskets & Lock Washers: Used with bolts for anti-loosening and anti-slurry leakage, enhancing overall sealing performance.
Shaft Sleeve & Inlet/Outlet Components
- Hollow Shaft Sleeves & Feed Sleeves: Installed at feed and discharge hollow shafts to protect shafts from abrasion with high precision and tight fit.
- Feed & Discharge Guides: Guide smooth material flow, reduce impact and lower equipment wear.
II. Product Performance Features
- Strong Impact Resistance & High ToughnessMade of Mn13, Mn18Cr2 high manganese steel with water toughening treatment. The surface work-hardens continuously under impact, becoming more wear-resistant with use, without chipping or cracking.
- Excellent Wear ResistanceHigh-chromium alloy and special alloy steel formulas adapt to severe abrasion and long-running conditions, greatly extending replacement cycles.
- Precise Dimensions & Perfect FitPrecision casting plus CNC machining ensure accurate curvature and mounting holes, tight fit with mill shell and heads, no looseness or slurry leakage.
- Stable Structure & Fatigue ResistanceOptimized for continuous rotation and high-frequency impact, with high fatigue strength, no deformation or breakage during long-term operation.
- Strong Universality & CustomizationComply with standard sizes for large industrial SAG mills; non-standard customization available according to imported/domestic mill models, drawings and measured dimensions.
- Easy Installation & MaintenanceModular design and bolted structure allow simple assembly and disassembly, greatly reducing mill downtime for maintenance.
III. Application Scope
- Applicable Equipment: Wet SAG mills, Dry SAG mills, large mining SAG mill units, primary grinding equipment for mineral processing.
- Applicable Industries: Large metal mines including copper, gold, iron and silver mines; sand & aggregate and building material grinding sections.
- Applicable Conditions: Mixed grinding of bulk ore and steel balls, high-impact & high-abrasion environments, long-period continuous grinding.
IV. Standard Specifications (Non-standard Customization Supported)
- Liner Sizes: Customized for SAG mills with diameter Φ3m–Φ8m
- Materials: Mn13, Mn18Cr2 super-high manganese steel, high-chromium alloy, high-strength alloy steel
- Grate Opening Sizes: Customized per grinding particle size requirements
- Fastening Bolts: M24–M64 high-strength mill special bolts
- Processing: Precision sand casting, CNC finish machining, custom manufacturing from drawings
V. Core Advantages of Hainan Sikejia Mining Equipment
- Grinding-Specific MaterialsOptimized alloy composition tailored to high-impact, high-abrasion SAG mill conditions, balancing toughness and wear resistance far beyond ordinary cast steel.
- Mature Large Casting TechnologyCapable of integrated casting of large mill liners and grates with dense internal structure, free of blowholes and sand defects, ensuring stable quality.
- One-Stop Supply of Full-Series ComponentsComplete coverage from liners, grates to lifting bars, bolts and shaft sleeves to meet full machine maintenance and replacement needs.
- Strong Non-Standard Customization CapabilityOne-to-one precise customization based on imported mill drawings, on-site measurements and equipment models.
- Factory Direct Supply & High Cost PerformanceSource casting and processing with no middlemen, transparent pricing, ideal for bulk procurement and long-term supporting supply.
VI. Customization & Service Support
- Customization of full-set metal wear parts according to SAG mill model, diameter, feed size and operating conditions.
- Free technical services including on-site measurement, drawing optimization, material selection and installation guidance.
- Long-term fixed supply for large mining SAG mill parts with stable delivery.
- Quality warranty provided; after-sales support available for non-artificial cracking, breakage and deformation.
VII. FAQ
How often are SAG mill liners replaced?
Under normal conditions, service life ranges from 6 to 18 months depending on material hardness and operating hours. High manganese steel performs better in hard rock grinding.
Are SAG mill metal components universal?
Interchangeable for mills of the same specification; large/imported SAG mills require customization based on drawings or measured dimensions.
Why use high manganese steel for SAG mill parts?
High manganese steel work-hardens under heavy impact, offering superior wear resistance and toughness to avoid fracturing, making it ideal for SAG milling.
What documents are required for customizing SAG mill parts?
Precise customization and quotation can be provided with mill model, component drawings, dimensional parameters or actual photos.
