High Manganese Ball Mill Grate Liner Discharge Casting Mining AG SAG Wear Parts

This ball mill grate liner also known as discharge grate liner is critical wear resistant casting installed at the discharge end of ball mill. It is designed with orderly arranged slots to control discharging particle size and prevent oversized materials from staying inside the mill chamber. It bears continuous impact extrusion and abrasive friction during ore grinding operation.

Our factory specializes in high end castings with multiple optional materials including high manganese steel high chromium alloy steel alloy steel and ductile cast iron. Our main product range covers liners for ball mill jaw crusher autogenous mill and semi autogenous mill and other mining machinery wear spare parts.

We can produce custom grate liners strictly according to customer technical drawings or physical samples. Different slot sizes overall dimensions and single piece weight can be customized to match various grinding mill working conditions. Each casting goes through complete casting and heat treatment process to guarantee stable wear resistance and mechanical performance.

This ball mill grate liner is widely applied in mineral concentrators cement plants metallurgical plants and aggregate processing lines. It fits for ball mill AG mill and SAG mill equipment. It works for grinding metal ore non‑metal ore rock and mineral slag under heavy‑duty continuous mining grinding conditions. It plays an important role for material classification and discharging at the mill outlet.

We implement full‑process multi‑item inspection from raw material incoming to finished goods delivery to guarantee casting quality. Chemical composition test is carried out to analyze all element contents and ensure raw material meets the required material grade standard. Dimensional inspection covers overall outline mounting hole position slot dimension and installation tolerance to make sure the grate liner can fit and assemble on mill equipment smoothly. MT magnetic particle testing is performed to detect surface and near‑surface casting defects such as cracks and inclusions on the complex slotted structure of grate liner. UT ultrasonic testing is used for internal flaw detection, checking hidden internal shrinkage cavity porosity and crack defects inside heavy castings which cannot be observed from appearance. Metallographic analysis tests the internal microstructure of finished castings, verifying grain structure and phase condition so as to confirm actual metallurgical property and wear‑resistant performance.

All test records and inspection reports can be provided for customers upon request before shipment.

OEM and ODM custom casting services are acceptable based on customer drawings or physical samples. Our technical team can provide professional material grade selection and structural optimization suggestions according to customers ore hardness processing capacity and actual site working environment. We keep updating production progress during order execution. After goods shipment we offer installation reference advice and collect product usage feedback. Long‑term stable supply of matched mining wear spare parts is available for repeat orders.

Heavy‑weight ball mill grate liners are firmly fixed on heavy‑duty steel trays or reinforced wooden boxes with high‑strength steel belts. The packing can effectively avoid collision shifting and surface damage during long distance export transportation. Sea transportation is the main delivery solution. Trade terms including EXW FOB CFR CIF are all acceptable. We can supply complete export documents such as packing list and commercial invoice for customs clearance.