High Manganese Steel Ball Mill Grate Plate and Casting Liners for Mining Machinery

High Manganese Steel Ball Mill Grate Plate and Casting Liners for Mining Machinery

Product Description
We are a professional manufacturer of high-end castings for the mining industry. Our core capabilities cover High Manganese Steel, High Chrome, Alloy Steel, and Ductile Iron, supplying critical wear components for Ball Mills, Jaw Crushers, and SAG/AG Mills. This grate plate is a vital part of the discharge system, engineered to control particle size and prevent material blocking while protecting the mill shell from severe abrasion .

Applications

• Ball Mill Grate Plates: Installed at the discharge end to screen finished materials and retain grinding media, ensuring smooth discharge and preventing the escape of oversize particles .

• SAG and AG Mill Liners: Heavy-duty castings designed to withstand high impact forces from large ore feed in semi-autogenous grinding circuits.

• Crusher and Screening Parts: Suitable for applications requiring high wear resistance, such as impact crusher liners and discharge grates .

Production and Quality Inspection
We implement a rigorous quality control system to guarantee product reliability and extended service life. Below is our inspection process with image placement suggestions:

1. Chemical Composition Analysis and Heat Treatment: We strictly control the content of Mn, Cr, and C, keeping S and P below 0.05% . The castings then undergo precise water toughening treatment (1050-1100C) to eliminate brittle carbides and achieve a uniform austenitic structure, ensuring high toughness 

2. Hardness Testing and 3D Scanning: We perform systematic hardness tests to verify the initial properties after heat treatment, ensuring the correct baseline for work hardening . Additionally, 3D scanning verifies the geometric slot dimensions and curvature against the original CAD design

3. Non-Destructive Testing MT and UT: To guarantee structural integrity under high impact loads, we perform Magnetic Particle Testing (MT) to detect surface micro-cracks and Ultrasonic Testing (UT) to identify internal defects such as porosity or shrinkage 

4. Dimensional Inspection and Metallographic Analysis: Precision measuring tools verify installation clearances and tolerances. Metallographic analysis examines the austenitic grain structure to confirm no excessive carbide precipitation, guaranteeing optimal work-hardening capacity 

Support and Services

• Custom Drawings: We accept customer drawings and offer OEM/ODM services with custom slot widths and sizes .

• Technical Consultation: Our engineering team assists in selecting the optimal material grade (High Mn vs. High Cr) based on your specific working conditions and mill type.

Packing and Shipping

• Packing: Standard export wooden pallets, steel frames, or custom crates as shown in the image, designed to prevent deformation during transit .

• Protection: Anti-rust oil treatment and VCI paper wrapping to prevent surface damage and corrosion during ocean freight .

• Shipping: Suitable for heavy sea freight; we support FOB, CIF, and DDP terms, ensuring safe and timely delivery to your port.