Lifting Bar
We supply Lifting bar for SAG mill and ball mills to the mine site.
- Product Introduction
Lifting bars (also called lifters or liner bars) are critical components in Semi-Autogenous Grinding (SAG) mills, designed to enhance grinding efficiency, protect the mill shell, and optimize ore breakage. Below are their key features and applications.
Product features and applications
1. Key Features of SAG Mill Lifting Bars/Liners
① High Wear & Impact Resistance
Material: Made from high-chromium cast iron (Cr-Mo), manganese steel (Mn18Cr2), or alloy steel.
Hardness: Typically 50-65 HRC to withstand abrasive ore and high-impact forces.
Surface Hardening: Some designs include carbide inserts or hard-facing overlays for extended lifespan.
② Optimized Geometry for Grinding Efficiency
Wave, Hi-Low, or Step Profiles – Enhance material lifting and cascading action.
Height & Spacing Design – Affects charge motion (cataracting vs. cascading).
Leading & Trailing Edges – Engineered to reduce wear and improve grinding kinetics.
③ Replaceable & Modular Design
Bolted or Wedge-Locked – Allows quick replacement without welding.
Symmetrical or Reversible – Some designs can be flipped to extend service life.
④ Customized for Mill & Ore Type
High-Impact Applications (Copper, Gold Ores) – Thicker, reinforced lifters.
Abrasive Ores (Iron, Taconite) – Ultra-high-chromium or composite liners.
⑤ Heat & Corrosion Resistance
Special Alloys (Ni-Cr, Mo-Enhanced) – For high-temperature or corrosive slurry conditions.
Product after-sales service
Vavi provides comprehensive after-sales guarantee services. The product warranty period is 12 months. If there are any installation, use or quality problems during the warranty period, Vavi will provide service guidance as soon as possible.
Product Quality Assurance
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