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SAG Discharge Grate Ball Mill Liner
,Casting Spare Ball Mill Liner
,Metal Ore Ball Mill Liner
SAG Mill Discharge Grate Plate OEM Casting For Metal Ore Coarse
Product Description
This OEM‑cast SAG mill discharge grate plate is heavy‑duty wear casting spare part for semi‑autogenous mills. Applied for metal ore coarse and medium‑fine grinding, it discharges qualified ore and retains grinding media inside. Multiple alloy material choices, custom dimensions and slot apertures per drawings, complete MT, UT, 3D‑scanning inspection documents are available.
Product Advantages
- Excellent impact and wear resistance for heavy‑duty SAG mill operation
- Precisely‑machined slot openings to stabilize coarse and medium‑fine ore discharging
- Effectively hold back grinding media and oversized particles for re‑grinding
- Reduce material blockage at discharge end
- Custom‑manufactured for various SAG mill models
Product Inspection
Every SAG mill discharge grate plate undergoes strict factory inspection before shipment for heavy‑duty metal ore grinding conditions. Inspection scope includes visual appearance check, magnetic particle testing MT, ultrasonic testing UT, dimensional inspection and 3D scanning. Bolt fitting test is performed to verify assembly compatibility. Raw material chemical composition and hardness test confirm material grade meets specifications. Defective castings will be rejected. Full inspection reports and quality certificates are available upon request for project acceptance.
- Visual inspection for surface defects, burrs and irregularities
- Nondestructive testing MT magnetic particle testing and UT ultrasonic testing
- Dimensional verification and 3D scanning to meet drawing tolerance
- Bolt fitting test to guarantee smooth field assembly
- Chemical composition & hardness test to verify alloy material
- Inspection reports and quality certificates supplied on request
Bolt Fit Test
Check whether the threaded holes or mating holes on the casting allow for smooth assembly with the bolts.
Dimensional Inspection
Inspect critical areas—such as length, hole diameter, thickness, and flatness—to ensure they meet the tolerances specified in the drawings. Focus on inspecting mounting interfaces, bolt hole spacing, and wall thickness
MT Magnetic Particle Testing
This method is based on the principle that when ferromagnetic materials are magnetized, “leakage magnetic fields" are generated at surface or near-surface defects. These leakage magnetic fields attract magnetic particles applied to the workpiece’s surface, forming visually detectable magnetic traces (which are much larger than the actual defects), thereby clearly indicating the location, size, and shape of the defects.
UT Ultrasonic Testing
This method utilizes the propagation characteristics of ultrasonic waves in materials. When sound waves encounter defects or heterogeneous interfaces within a material, they undergo reflection, refraction, and attenuation. The instrument determines the location, size, and nature of defects by receiving and analyzing changes in the energy of the reflected echoes or transmitted waves.
Hardness Testing
Examine the indentation resistance of the casting’s surface to verify that the hardness values meet the requirements specified in the drawings and that there are no excessive variations in hardness between different areas of the same casting.
Custom Service
- Full customization for ball mill discharge grate plate for ore fine grinding
- Custom dimensions, slot aperture shape and slot size per customer drawings
- Multiple material options: high‑manganese steel, ultra‑high‑manganese steel, multi‑alloy steel
- Custom marking and model numbers upon request
- All customized items comply with ASTM ISO CE quality standards
- Lead time and payment terms subject to your order specifications
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