Shaanxi Rongbao Machinery Electronics Co., LTD. specializes in manufacturing Casting Collection Box Parts designed for professional rainwater collection systems. Since 2003, we have developed enterprise-grade aluminum alloy components using advanced gravity casting technology. Our products feature A356 aluminum material with a precise weight of 1.8kg per unit, manufactured through integrated processes including CNC machining and shot blasting surface treatment. With 14 utility model patents and National High-Tech Enterprise certification, we deliver production capacity up to 5,000 pieces per batch. Our quality management systems comply with ISO 9001:2015, ISO 14001, and ISO 45001 standards. Approximately 70% of our products serve customers in the United States, Europe, and Japan.

Your rainwater management system demands components that withstand constant moisture exposure while maintaining structural integrity.
Our products deliver exceptional corrosion resistance through A356 aluminum alloy composition. This material choice ensures long-term performance in outdoor environments.
The gravity casting process we employ creates dense, uniform structures. This manufacturing method eliminates common defects like porosity that compromise collection system reliability.
Each component undergoes precision CNC machining to meet your exact dimensional specifications. Tight tolerances ensure seamless integration with your existing rainwater infrastructure.
Shot blasting surface treatment provides superior adhesion for protective coatings. This preparation step extends component lifespan in harsh weather conditions.

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Parameter
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Details
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Application
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Rainwater Collection Systems
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Material
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A356 Aluminum Alloy
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Unit Weight
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1.8 kg
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Manufacturing Process
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Gravity Casting
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Machining Method
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CNC Precision Machining
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Surface Treatment
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Shot Blasting
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Production Capacity
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5,000 pieces per batch
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Customization
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OEM/ODM Available
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Quality Certifications
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ISO 9001:2015, ISO 14001, ISO 45001
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Standard MOQ
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100 pieces
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Lead Time
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20–30 working days
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Origin
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Xi'an, China
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Material Selection and Melting
We use A356 aluminum alloy for its excellent fluidity and low shrinkage characteristics. This material maintains uniform structure during the controlled solidification process.
Our centralized melting system removes excess gas and impurities from raw materials. This purification step suppresses casting defects at the source.
Gravity Casting Method
Molten aluminum flows naturally into mold cavities under gravitational force. This gentle filling method reduces turbulence and prevents air entrapment.
The bottom-to-top filling path allows gases to escape naturally. Your components achieve superior density and internal cleanliness.
Controlled cooling rates in gravity casting minimize internal stress. This results in dimensionally stable Casting Collection Box Parts that resist warping over time.
Precision Machining
CNC equipment machines critical dimensions to your specifications. Multi-axis capabilities handle complex geometries with consistent accuracy.
Automated tool changes maintain production efficiency for batch orders. You receive components ready for immediate installation.
Surface Preparation
Shot blasting removes surface oxidation and creates uniform texture. This mechanical treatment improves coating adhesion by up to 40%.
The finished surface resists environmental degradation better than untreated castings. Your investment delivers years of reliable service.

Your application might need dimension changes or extra functionality. We offer versatile OEM/ODM services based on your drawings or 3D models.
Our engineering staff will look over your technical specifications during the quote step. We can discover potential manufacturing issues before the mould is even made.
The typical minimum order number of 100 pieces makes it suitable for pilot projects and volume production. This flexibility is designed to meet your project scalability demands.
The production of a mould takes between 15 and 25 days, depending on its intricacy. After mould approval, batch production is done within 7-20 days.
Multi-Level Inspection Protocol
Raw material verification is carried out before melting to establish alloy composition. In-process inspections monitor the mould temperature and in-fill rates.
Dimensional examination is carried out using measurement equipment calibrated to traceable international standards. Every batch is checked against your authorised designs.
Surface quality inspection: detects cosmetic problems before packaging. Only components that pass our strict requirements come to your facility.
Certifications of Management Systems
We are ISO 9001:2015 certified which means we are committed to quality management consistently. Each stage of production is controlled by documented protocols.
ISO 14001 compliance ensures they manufacture in an ecologically responsible manner. We reduce waste and hence we reduce our ecological footprint.
ISO 45001 certification keeps workers safe by systematically identifying hazards. A safe workforce delivers superior components to you.

Q: What makes A356 aluminum suitable for rainwater collection applications?
A: A356 offers excellent corrosion resistance in moisture-rich environments. Its low shrinkage characteristics maintain dimensional stability over years of thermal cycling. The alloy's strength-to-weight ratio provides structural integrity without excessive mass.
Q: Can you modify the standard 1.8kg design for different applications?
A: Absolutely. Our ODM services accommodate weight optimization based on your load requirements. Provide your functional specifications and we'll propose design modifications. Wall thickness adjustments and feature additions are common customizations.
Q: How do you ensure consistent quality across large production batches?
A: We implement statistical process control monitoring key parameters like mold temperature and cooling rates. First-article inspection validates setup before full production begins. Random sampling throughout the batch confirms ongoing conformance to specifications.
Q: What packaging methods protect components during international shipping?
A: Standard wooden box packaging provides rigid protection against impact damage. Interior foam cushioning prevents surface scratches during transit. We can customize packaging based on your specific shipping route requirements.
Q: Do you provide technical support for installation and integration?
A: Our technical team offers guidance on mounting configurations and sealing methods. We can review your installation drawings to identify potential compatibility issues. Post-delivery support continues throughout your product lifecycle.
Ready to enhance your rainwater collection system with precision-engineered Casting Collection Box Parts components? Contact steve.zhou@263.net to discuss your specifications today.
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