Manufacturing Process
Manufacturing Process
From raw material to finished product, Fengwei controls every step of production in-house to ensure consistent quality.
Production Flow
1. Raw Material Selection
High-quality manganese steel and chrome alloy raw materials, sourced from certified suppliers. Chemical composition verified before use.
2. Melting
Medium frequency induction furnaces melt the raw material at 1450-1550°C. Spectrometer checks chemical composition in real-time.
3. Casting
Sand Mold Casting: Traditional sand mold process for large parts (up to 5 tons). Suitable for jaw plates, mill liners.
Lost Foam Casting: Precision lost foam process for complex geometries. Higher dimensional accuracy and smoother surface.
4. Heat Treatment
Water toughening treatment at 1050-1100°C improves wear resistance and toughness. Hardness reaches HRC 58-62 for high manganese steel.
5. Machining
CNC machining for critical dimensions: bolt holes, seating surfaces, threads. Tolerance ±0.5mm or per drawing.
6. Inspection
- Chemical composition analysis (spectrometer)
- Hardness testing (HRC)
- Dimension inspection (CMM)
- Visual and surface defect check
7. Packing
Wooden cases or pallets, suitable for sea transport. Marked with product name, material, quantity, and PO number.
Production Capacity
| Item | Capacity |
|---|---|
| Annual Output | 10,000+ tons |
| Factory Area | 20,000+ sqm |
| Max Single Part | 5 tons |
| Melting Furnaces | 2 sets (1.5T + 3T) |
| Lead Time | 15-30 days (standard), 7-15 days (stock items) |