The Mining Conveyor Idler Roller Bracket is a structural mounting component that secures idler rollers along the length of a mining conveyor belt system. Operating in harsh mining environments with heavy abrasive loads, continuous vibration, and exposure to dust and moisture, these brackets must maintain precise roller alignment while resisting wear, impact, and corrosion.
Ningbo Ruican manufactures these brackets using precision Investment Casting of ZG270-500 cast steel, followed by CNC MACHINING of mounting holes, bearing seats, and alignment surfaces. Our integrated production ensures consistent quality across high-volume orders, with full traceability from casting to finished product.
Material Specifications
| Parameter | Specification |
|---|
| Material | ZG270-500 (GS-52) cast steel |
| Tensile Strength | ≥ 500 MPa |
| Yield Strength | ≥ 270 MPa |
| Elongation | ≥ 18% |
| Impact Toughness | ≥ 35 J (at room temperature) |
| Hardness | 140–190 HBW |
| Heat Treatment | Normalized at 900°C |
Casting Specifications
| Parameter | Specification |
|---|
| Casting Process | Silica sol investment casting |
| Dimensional Tolerance | ISO 8062 CT6–CT7 |
| Surface Roughness | Ra 6.3–12.5 μm (as-cast); Ra 3.2 μm (machined) |
| Weight Range | 2–25 kg |
| Wall Thickness | 6–20 mm |
| Batch Size | 500–10,000+ units |
CNC Machining Parameters
| Parameter | Specification |
|---|
| Bearing Seat Tolerance | H8 (bore fit) |
| Mounting Hole Position | ±0.1 mm |
| Flatness (mounting surface) | ≤ 0.1 mm |
| Surface Finish (bearing seat) | Ra 3.2 μm |
| Angle Tolerance (roller axis) | ±0.5° |
| Machining Equipment | 4-axis CNC horizontal machining center |
Quality Control
- Statistical process control (SPC) on critical dimensions
- 100% visual inspection for surface defects
- Dimensional sampling per ISO 2859-1 (AQL 2.5)
- Magnetic particle inspection on high-stress areas
- Hardness verification per batch
- Material certificate per EN 10204 3.1
Applications
- Underground and surface mining conveyor systems
- Bulk material handling conveyors (coal, iron ore, copper)
- Aggregate and quarry conveyor systems
- Port and terminal bulk loading conveyors
- Cement and mineral processing plant conveyors
相关
评价
目前还没有评价