Shaanxi Rongbao Machinery Electronics Co., LTD. specializes in manufacturing high-performance Starter Aluminum End Cap Casting using advanced gravity casting technology. Engineered from premium 380 aluminum alloy, each component weighs 3.8kg and demonstrates exceptional dimensional precision for elevator applications. With 14 utility model patents and National High-Tech Enterprise certification, Rongbao delivers integrated manufacturing solutions from mold design through CNC machining and shot blasting surface treatment. Our production capacity reaches 5,000 pieces per product line, supported by ISO 9001:2015, ISO 14001, and ISO 45001 certifications. Exporting 70% of output to the United States, Europe, and Japan, we maintain a proven delivery performance of 20-30 working days for regular orders, ensuring your production schedules remain uninterrupted.

Your equipment needs components that get the balance right between strength, weight and manufacturing precision. Our product meets these requirements through precisely controlled gravity casting techniques that reduce porosity and maximise structural integrity.
The composition of the 380 aluminium alloy has good fluidity in the molten state and good mechanical qualities after solidification. The choice of material guarantees that the end caps can endure the strains of operation, but still retain the light weight features that are required in modern lift systems.
The type of gravity casting we use has benefits that are exclusive to the process. This controlled flow of metal results in a homogeneous grain structure throughout all components. That means consistent performance throughout your whole production run.
Surface treatment of shot blasting improves aesthetics and functional performance. This procedure removes flaws from the casting and produces an ideal surface for subsequent assembly operations or coating treatments.

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Parameter
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Detail
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Material
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380 Aluminum Alloy
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Weight
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3.8kg
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Casting Process
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Gravity 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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Quality 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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Packaging
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Wooden Box
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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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Our integrated production facility combines multiple capabilities under one roof. This consolidation eliminates coordination delays common in multi-supplier arrangements.
Mold Development: Your project begins with precision tooling manufactured within 15-25 days. Our engineering team optimizes mold design for gravity casting requirements while considering your specific dimensional tolerances.
Gravity Casting: The controlled pouring process allows aluminum to fill mold cavities naturally. This technique reduces turbulence that can introduce defects, resulting in cleaner internal structures compared to high-pressure methods.
CNC Machining: Computer-controlled precision equipment removes excess material and creates finished dimensions. This secondary processing ensures your Starter Aluminum End Cap Casting meets exact specifications for mounting points and interface surfaces.
Quality Verification: Each production batch undergoes dimensional inspection and material testing. Our quality management systems align with international standards, providing documentation you need for supplier audits.
Design criteria are lift manufacturer specific. OEM and ODM services with flexible manufacturing solutions to suit your unique requirements.
Must include technical drawings, 3D models or performance specs. Our engineering team examines production viability and suggests process improvements. Due to the minimum order number of about 100 pieces, custom development is economically feasible for particular applications.
Design changes might be made to achieve weight targets, mounting arrangements or compatibility with current assemblies. Our multi process capabilities enable us to choose the best manufacturing method for your component geometry.

Starter assemblies require components that perform reliably under cyclic loading and environmental exposure. The combination of aluminum alloy properties and precision manufacturing delivers several operational advantages.
Weight Reduction: Aluminum offers strength-to-weight ratios that reduce overall system mass. This characteristic improves energy efficiency and reduces structural loading on elevator frameworks.
Corrosion Resistance: Natural oxide formation protects aluminum surfaces from environmental degradation. This property extends service life in elevator shafts where moisture and temperature variations occur.
Dimensional Stability: Gravity casting combined with CNC machining produces consistent part-to-part dimensions. This uniformity simplifies your assembly processes and reduces fitting adjustments.
Thermal Management: Aluminum's thermal conductivity helps dissipate heat generated during starter operation. This characteristic contributes to electrical component longevity.

Q: What makes gravity casting suitable for starter end caps?
A: Gravity casting allows controlled solidification that creates uniform mechanical properties throughout the component. This process works particularly well for the 3.8kg weight range, producing structural integrity without the high tooling costs associated with die casting methods.
Q: Can you modify dimensions for different starter motor configurations?
A: Yes, our OEM services accommodate dimensional adjustments based on your technical requirements. Provide interface specifications and mounting details, and our engineering team will evaluate manufacturing feasibility during the mold design phase.
Q: How do you ensure consistent quality across production batches?
A: Our ISO 9001:2015 certified quality management system includes incoming material inspection, in-process monitoring, and final dimensional verification. Each product undergoes standardized testing protocols before packaging.
Q: What information do you need to quote custom specifications?
A: We require technical drawings or 3D models showing dimensions, tolerances, and material requirements. Include annual volume estimates and any specific certification requirements for accurate lead time and pricing calculations.
Q: Do you provide material certification documentation?
A: Yes, we supply material test reports and dimensional inspection certificates with each shipment. Additional documentation requirements for specific markets can be arranged during order processing.
Ready to discuss your component requirements with Starter Aluminum End Cap Casting? Email steve.zhou@263.net to start your project evaluation today.
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