Shaanxi Rongbao Machinery Electronics Co., LTD. specializes in manufacturing premium Cast Impeller components using advanced aluminum alloy casting technologies. Our flagship high-speed train impeller, crafted from A356 aluminum alloy through low-pressure casting, delivers exceptional performance with a production capacity of 5,000 pieces and a precise weight of 15kg. Backed by 14 utility model patents and recognized as a National High-Tech Enterprise since 2003, we provide comprehensive solutions from mold design to finished component delivery. Our integrated manufacturing capabilities—including CNC machining and shot blasting surface treatment—ensure every impeller meets demanding international standards, with 70% of our production exported to the United States, Europe, and Japan.

Process of Advanced Manufacturing
The production process of our products is low pressure casting, which guarantees the excellent material density and structure.
This approach enables controlled pressure filling of the mould cavity with molten A356 aluminium alloy. This results in low porosity and high mechanical characteristics.
Your components experience less turbulence when being filled. This makes for smoother interior structures and better durability in high speed applications.
Quality of Materials
A356 aluminium alloy is the best combination of strength and weight. This material has good castability and corrosion resistance.
The thermal conductivity of the alloy is a good characteristic for applications needing efficient dissipation of heat. Your equipment will last longer and run cooler performance wise.
We provide shot blasting surface treatment for a uniform surface finish. This technique removes contaminants and provides a suitable base for any further protective coatings if needed.
Precision Machining Services
All products are CNC machined to your exact requirements. We use precision equipment to hold tight tolerances on dimensions.
Complex blade geometries are machined consistently from production run to production run. You get parts that fit into your assembly without any modification.
Our unique combination of casting know-how and modern machining technologies. This eliminates the synchronisation problems between several vendors.

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Parameter
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Details
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Application
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High-speed train systems
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Material
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A356 aluminum alloy
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Weight
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15kg
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Manufacturing Process
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Low-pressure casting
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Machining
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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
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Certifications
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ISO 9001:2015, ISO 14001, ISO 45001
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Customization
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OEM/ODM available
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MOQ
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Approximately 100 pieces
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Lead Time
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20-30 working days
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Packaging
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Protective wooden boxes
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Origin
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Xi'an, China
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Multi-System Certification
Our quality management follows ISO 9001:2015 standards, ensuring consistent production excellence. Environmental responsibility is maintained through ISO 14001 compliance.
Worker safety and operational standards meet ISO 45001 requirements. These certifications demonstrate our commitment to comprehensive manufacturing excellence.
We've successfully passed ABB's stringent SSBM audit. This validates our capability to serve demanding international clients with complex requirements.
Proven Global Performance
With approximately 70% export volume to international markets, our Cast Impeller products meet diverse regional requirements.
Your projects benefit from our extensive experience serving clients across continents. We understand varying technical specifications and delivery expectations for different markets.
Our technical team provides documentation support for compliance needs. You receive the information necessary for smooth integration into your applications.

OEM/ODM Service
We may work from your precise designs or assist you with the design of your project. Our engineers work from 3D models and technical standards.
Blade combinations, size and surface treatments are customisable. We customise our production method to fit the specific requirements of your application.
Standard MOQ of Approx. 100 pieces provides inexpensive entry for specialised projects. The more you get the better it is for arranging the production and the price.
Integrated Manufacturing Processes
One supplier from mould development to final delivery. This helps to enable communication and speed up project timeframes.
Mould making 15-25days , batch production 7-20days . For ordinary orders, your overall lead time is still 20-30 working days.
We have one stop capacity of casting, machining and surface treatment in one roof. This integration increases quality control and simplifies logistics.

Q: What makes low-pressure casting ideal for impeller production?
A: Low-pressure casting fills molds from bottom to top under controlled pressure, reducing turbulence and gas entrapment. This produces denser castings with superior mechanical properties compared to gravity casting, essential for high-speed rotating components like impellers.
Q: Can you modify the impeller design for different applications?
A: Yes, we provide full OEM/ODM customization based on your drawings, models, or performance requirements. Our engineering team can adapt blade geometry, dimensions, and material specifications to suit various fluid dynamics and operational conditions.
Q: How do you ensure consistent quality across large production runs?
A: Our ISO-certified quality systems include process controls at every stage—from incoming material inspection through final dimensional verification. CNC machining ensures repeatability, while our production capacity of 5,000 pieces allows efficient scaling without compromising standards.
Q: What packaging protects impellers during international shipping?
A: We use custom wooden boxes designed to prevent movement and impact damage during transit. Packaging is configured to meet international shipping regulations while providing adequate protection for the precision-machined surfaces.
Q: What lead time should we expect for custom impeller orders?
A: Standard timeline includes 15-25 days for mold development and 7-20 days for batch production, totaling 20-30 working days for regular orders. Rush projects may be accommodated depending on production schedule—contact us to discuss your specific timeline needs.
Ready to enhance your equipment performance with Cast Impellers? Contact our technical team at steve.zhou@263.net to discuss specifications.
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