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One-Stop Precision Metal Manufacturing from Mold to Delivery

Gravity Casting

Gravity Casting Process Principle

Gravity casting is a metal forming process that uses the force of gravity to fill molten aluminum alloy into a pre-designed mold cavity without applying external pressure.

During the process, molten aluminum flows naturally into the mold, then cools and solidifies to form the desired component shape. Through optimized mold design and controlled cooling processes, gravity casting produces parts with excellent structural strength, good mechanical properties, and reliable dimensional stability.

This process is widely used for aluminum components requiring high strength, durability, and complex structures.

Equipment & Capacity

With advanced gravity casting equipment and professional production management, Long Win Metal provides stable aluminum casting solutions from prototype development to mass production.


Our integrated capabilities include melting, gravity casting, machining, surface treatment, and quality inspection, ensuring consistent quality, flexible capacity, and reliable delivery for global customers.

OEM / ODM Services

Customized Gravity Casting Solutions
Long Win Metal provides professional OEM and ODM services for aluminum gravity casting components, supporting customers from product design review to mass production.

Our engineering team works closely with customers to optimize casting designs, develop reliable tooling solutions, and provide complete manufacturing support including prototype validation, process improvement, quality inspection, and final production.

With integrated engineering and manufacturing capabilities, we help customers achieve high-quality aluminum castings with stable performance and reliable delivery.

Quality Assurance

Strict Quality Control for Reliable Gravity Castings

Long Win Metal applies strict quality control throughout the gravity casting process, ensuring every component meets customer requirements for accuracy, performance, and reliability.


Our quality system covers:

1
Material Inspection
Verify aluminum alloy composition and material consistency.
2
Process Control
Monitor casting parameters to ensure stable filling, cooling, and solidification.
3
Dimensional Inspection
Use CMM and precision measuring equipment to verify critical dimensions and tolerances.
4
Final Quality Verification
Perform comprehensive inspection to ensure casting quality, surface condition, and product consistency before delivery.
Through advanced inspection equipment and professional quality management, we deliver reliable aluminum gravity casting components for demanding industrial applications.

Typical Applications

Reliable Aluminum Gravity Casting Solutions for Diverse Industries

Long Win Metal’s aluminum gravity casting components are widely applied in industries requiring high strength, excellent durability, and stable dimensional accuracy. With outstanding mechanical properties and flexible manufacturing capability, our gravity casting solutions support a wide range of applications including automotive, industrial equipment, renewable energy, electric vehicles, automation, and power systems.


We provide customized aluminum casting components from prototype development to mass production, helping customers achieve lightweight design, improved performance, and reliable product quality.

Electric Vehicles
Motor Hossings, Battery Enclosures, Control System Components
Home Appliances
Washing Machine Parts, Compressor Parts, Structural Components
Industrial Automation
Robotic Parts, Reducer Housings, Machine Base Components
LED Lighting
Heat Sinks, Lamp Housings, Lighting Structural Parts
Telecommunications
Antenna Mounts, Base Station Components, Heat Dissipation Parts
Renewable Energy
Solar Inverters, Energy Storage Systems, Wind Power Components
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Longwin Metal, founded in 2002 as Xiamen Zhenyuan Die Casting Factory, is now an integrated ODM/OEM manufacturer of precision aluminum and zinc die cast components based in Zhangzhou, Fujian.
Contact Us
Contact: Paul Hu
Phone: +86 13950196086
WhatsApp: +86 13950196086
Address: No. 18-1, Fu Zhao Road, Chen Xiang Town, Chang Tai District, Zhang Zhou City, Fujian Province, China
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