The Agricultural Sprayer Boom Suspension Bracket is a critical structural component engineered for modern self-propelled and trailed crop sprayers. Manufactured by Ningbo Ruican using advanced Investment Casting (lost wax) technology followed by precision CNC MACHINING, this bracket provides the structural backbone that supports and stabilizes the sprayer boom across varying field conditions. Cast from QT450-10 ductile iron, it delivers an optimal balance of tensile strength, impact resistance, and fatigue durability — essential for withstanding the dynamic loads encountered during field operation at boom widths exceeding 36 meters.
Material Specifications
| Parameter | Specification |
|---|---|
| Material Grade | QT450-10 (Ductile Iron / Nodular Cast Iron) |
| Tensile Strength | ≥ 450 MPa |
| Yield Strength | ≥ 310 MPa |
| Elongation | ≥ 10% |
| Hardness | 160–210 HB |
| Heat Treatment | Annealing / Normalizing |
| Surface Finish | Ra 3.2 µm (machined surfaces) |
| Dimensional Tolerance | CT7 (ISO 8062) |
| Weight Range | 2.5–8.0 kg |
Manufacturing Process
- Wax Pattern Injection: High-precision wax injection dies produce patterns with ±0.1mm accuracy
- Shell Building: Ceramic shell investment using zircon flour and fused silica stucco (5–7 layers)
- Dewaxing & Firing: Autoclave dewaxing followed by shell firing at 950–1050°C
- Pouring: QT450-10 ductile iron poured at 1380–1420°C with magnesium treatment
- Knockout & Cleaning: Ceramic shell removal, gate grinding, shot blasting
- Heat Treatment: Annealing to achieve target mechanical properties
- CNC Machining: 4-axis CNC Milling for mounting bores, pin holes, and mating surfaces
- Surface Treatment: Phosphate coating or powder coating per customer specification
- Inspection: Dimensional, visual, magnetic particle, and hardness testing
Key Features
- High Structural Integrity: QT450-10 ductile iron provides 450 MPa tensile strength with 10% elongation, absorbing shock loads during boom operation
- Precision Investment Casting: Complex geometry with internal ribbing achieved without machining, reducing material waste by 30% vs. Sand Casting
- CNC-Machined Interfaces: Pin holes and mounting surfaces machined to H7 tolerance for smooth pivot action and extended bearing life
- Corrosion Resistance: Phosphate or powder coating provides long-term protection against agricultural chemicals and weathering
- IATF 16949 Quality System: Full traceability from raw material to finished product, with PPAP documentation available
Application Fields
- Self-propelled crop sprayers (36–48 meter boom widths)
- Trailed field sprayers
- Orchard and vineyard sprayers with folding boom systems
- Fertilizer applicator boom systems
- Agricultural irrigation boom systems
Why Choose Ningbo Ruican
With 17+ years of investment casting experience and IATF 16949 certification, Ningbo Ruican delivers agricultural machinery components that meet global OEM standards. Our integrated casting + CNC machining facility eliminates multi-supplier coordination, reducing lead times by 25% and quality inconsistency risks. We serve agricultural equipment manufacturers across North America, Europe, and Australia with custom OEM/ODM solutions from drawings or samples.
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