Cast Rectangular Hopper

Cast Rectangular Hopper for Rainwater Collection Systems

Shaanxi Rongbao Machinery Electronics Co., LTD. manufactures the Cast Rectangular Hopper using A356 aluminum alloy through precision gravity casting technology. This product weighs 2.1kg and serves as a critical component in rainwater collection tank systems. Built with CNC machining precision and shot-blasted surface treatment, it delivers exceptional durability for outdoor drainage applications. With a production capacity of 5,000 pieces and backed by ISO 9001:2015, ISO 14001, and ISO 45001 certifications, Rongbao provides reliable OEM/ODM customization to meet your specific project requirements. Our integrated manufacturing capabilities ensure consistent quality from mold development through final delivery.

Why Choose Our Cast Rectangular Hopper?

Your rainwater management system needs parts that can take the elements year after year. Our hopper is made of lightweight aluminium using rugged casting techniques.

The corrosion resistance of A356 material is good. This aluminum-silicon alloy is sufficiently durable to be structurally sound after lengthy exposure to collected water and ambient moisture.

The surface polish after shot blasting is uniform. This treatment removes defects and prepares the part for excellent adhesion of paint or coating, as needed.

CNC machining ensures perfect dimensional precision. Our components install the first time without the need for your installation crews to make adjustments on location.

Technical Specifications

Customization Capabilities for Your Projects

Every rainwater collection project presents unique installation requirements. We adapt our Cast Rectangular Hopper designs to match your specific system configurations.

Send us your technical drawings or 3D models. Our engineering team reviews your specifications and recommends the optimal manufacturing approach from our multi-process capabilities.

Need modifications to dimensions or mounting points? Our ODM service includes design consultation to ensure your customized hopper integrates seamlessly with your tank systems.

We maintain approximately 100 pieces as our standard minimum order quantity. This flexibility supports both pilot projects and large-scale developments.

Manufacturing Process Excellence

Integrated production workflow that guarantees quality at every level. Mould making takes 15-25 days while batch casting and machining takes 7-20 days.

Gravity casting allows the molten aluminium to flow into the mould via gravity. This approach reduces internal porosity and creates stronger and more reliable components than other processes.

Precision procedures are performed by CNC machines after casting solidification. Mounting holes, drainage canals and mating surfaces to your tight tolerances.

Surface preparation is completed by shot blasting. High velocity medium removes scale, and produces a uniform texture on all surfaces.

Quality Assurance You Can Trust

Rongbao is ISO 9001:2015, ISO 14001 and ISO 45001 certified. These management systems are the backbone of our quality control, environmental responsibility and worker safety policies.

For more than 20 years we have been supplying aluminium castings to customers in the U.S., Europe and Japan. We ship about 70 percent of our production.

All hoppers are checked for dimensional accuracy before packing. Your components are ready to install. No further processing is required.

We ship worldwide and use hardwood boxes for product protection. We deliver on schedule, so our equipment manufacturing partners don’t have to wait for production.

FAQ

Q: Can you modify the hopper dimensions to fit my existing tank design?

A: Yes, we provide full OEM/ODM customization services. Share your dimensional requirements, and we'll manufacture hoppers precisely to your specifications. Our 14 utility model patents demonstrate our technical capability to adapt designs for specialized applications.

Q: How does A356 aluminum perform in outdoor rainwater applications?

A: A356 offers excellent corrosion resistance due to its silicon content (6.5-7.5%). The material naturally forms a protective oxide layer when exposed to moisture, preventing degradation over years of outdoor service. Shot blasting enhances this protection by creating an even surface finish.

Q: What's your typical production timeline for a custom order?

A: After finalizing your design specifications, mold manufacturing requires 15-25 days. Batch production of your custom hoppers takes an additional 7-20 days. Total lead time typically ranges from 20-30 working days, depending on order complexity and quantity.

Q: Do you provide samples before full production?

A: We can manufacture sample units following your custom specifications. This allows you to verify fit and finish before committing to full batch production. Contact our team to discuss sample requirements and associated timelines.

Q: What surface treatments are available besides shot blasting?

A: While shot blasting is standard for this hopper model, our facility offers additional surface treatments including powder coating, anodizing, and painting. We'll recommend the best finish based on your application environment and aesthetic requirements.

Contact Us for Your Custom Hopper Solution

Ready to specify your rainwater collection components with Cast Rectangular Hopper? Email steve.zhou@263.net to discuss your project requirements today.