Die Casting  Manufacturers, Traders, Suppliers

Die casting is a metal forming process in which molten metal is injected into a precision mold cavity at high pressure, which is cooled and solidified to form high-precision, high surface quality castings

High pressure and high speed filling: Liquid metal (such as aluminum, zinc, magnesium alloy) quickly fills the mold under high pressure to ensure the formability of complex structures. Rapid cooling: Molds are usually made of steel with a cooling system that allows the metal to cure quickly and maintain dimensional stability

Automobiles, 3C products, home appliances

Zinc Alloy Castings are precision-engineered components produced through the die-casting process, using high-quality zinc alloys for superior strength, durability, and dimensional accuracy. Zinc alloy castings offer excellent corrosion resistance, high hardness, and a smooth surface finish, making them ideal for complex shapes and intricate designs. Widely used in automotive, electronics, telecommunications, hardware, and consumer products industries, these castings are cost-effective for high-volume production while ensuring consistent quality and performance.

We have many years of experience in the industry to provide you with professional aluminum die casting services. Computer simulations are used to ensure the quality of die-cast products. In addition, our quality control engineers monitor each manufacturing process step to maintain standards and tolerances.

Small size: 0.2～10mm; general size: 10～800mm; large size to 8000mm

Durable, smooth, highly conductive, lightweight and textured surfaces, aluminum die castings are widely used in electronics, aerospace, automotive, and kitchen appliances for their corrosion resistance.

Precision OEM CNC Machining/Turning/Milling Manufacturer for plastic and metal parts.

Chuangyu was established in Qingdao in 2009, specializes in precision CNC machining for plastic and metal parts. Boasting a 5,000 square meter CNC machine shop, offer exceptional global services to over 350 clients in more than 15 countries, covering from independent design engineers to industrial,commercial, medical, automotive and even aerospace companies with advanced machining technology and highly skilled employees, we consistently maintain a competitive edge.
Additionally, we offer a comprehensive one-stop service and overall machining solutions. Expect a quotation within 24 hours of submitting your inquiry, Our team of seasoned engineers is always on standby, ready to transform your concepts into tangible products and deliver advanced manufacturing solutions tailored to your specifications.
Our production capabilities range from one piece to tens of thousands, ensuring we can accommodate your specific manufacturing requirements. Each project benefits from dedicated one-on-one project management support, guaranteeing personalized attention and seamless execution."
At Chuangyu, our advanced equipment enables us to handle the custom parts from simple milling or turning to complex and precise 5-axis CNC machining. We are dedicated to the continuous improvement of our CNC programming and machining processes, whether for prototyping or mass production. Typically, we achieve tolerances ranging from plus or minus 0.1 millimeter to plus or minus 0.05 millimeter, adhering to the internationally recognized standard ISO 2768. Beyond machining, we offer additional finishing services through our trusted subcontractors. It encompass painting, powder coating, anodizing, plating, vacuum metalizing, chromate passivation and more. In short, our solutions will exceed your expectations to truly achieve the ultimate surface quality required by a product. Whether it is the color, texture, gloss or surface functionality.
At Chuangyu, we rigorously adhere to your specifications, utilizing our advanced testing equipment to meticulously measure and inspect every part, ensuring superior quality across various dimensions, including tolerance, surface, hardness, threads, and fits. Our dedication to detail, problem-solving, and research into new materials and processes, coupled with our investment in cutting-edge technology, underscores our unwavering commitment to enhancing quality and elevating customer satisfaction.
After inspection, we expedite the packaging and global distribution, leveraging a range of shipping options including DHL, UPS, FedEx, ensuring swift delivery within a matter of days. Consistently, we offer specialized engineering support to facilitate the development process at every stage—before, during, and after production. Our goal is to be your premier partner, always available to assist. Initiate your inquiry today, and receive high-quality parts within just a few days. We appreciate your consideration.

We are specialized in Industries, such as Automation, Aerospace, Medical, Etc

Aluminum Alloy Die Casting is a high-pressure, high-speed metal casting process used to produce complex, dimensionally precise, and smooth-surface components from aluminum alloys. Molten aluminum is injected under intense pressure into a reusable steel mold (die), rapidly solidifying into the desired net-shape part.

Common Aluminum Alloys Used:
A380 (ADC10): Most widely used. Excellent fluidity, strength, pressure tightness, castability.
ADC12 (A383): Similar to A380, better die life due to lower Fe content, slightly lower strength.
A360: Superior corrosion resistance and pressure tightness; good fluidity.
A413 (ADC3): Excellent pressure tightness and impact strength.
AlSi9Cu3(Fe) (EN AC-46000): Common European alloy, high strength and hardness.

Typical Applications:
Automotive: Engine blocks/parts, transmission housings, intake manifolds, brackets, structural components.
Electronics: Laptop/phone housings, heat sinks, connector housings.
Industrial: Pump housings, power tool bodies, valve bodies, machinery components.
Consumer Goods: Appliance housings, power tool casings, furniture hardware.
Lighting: LED heat sinks and housings.

Aluminium Pressure Die Casting Parts, High Pressure Die Casting

Material: A380，A360，ADC12，A413，6061，etc
Standard
Dimension: max: 350X300X150mm
min: 20X15X5mm
Weight: 5g to 3000g
Process: Tooling, Casting, Deburring, Machining, Surface Treatment, Assembly, Inspection, Packaging
Surface Treatment: Vibration Grinding, Shot Blasting, Polishing, Brushing,
Plating(Chrome, Nickel, Zinc)，Anodization，Painting，Powder Coating，Electrophoretic Coating

Automotive, Construction Machinery, Electric, Motor Industries......

die casting

zinc die casting and aluminum die casting

automotive, electronic connectors, smart home furnishings, telecommunications, power tools, mechanical components, AI devices, and more.

Casting Parts refer to components manufactured by pouring molten metal or alloy into a pre-shaped mold, allowing it to cool and solidify, then removing the mold to obtain the final product. This process is widely used for producing complex geometries that are difficult or expensive to machine from solid materials.
Key characteristics of casting parts include:

• Versatility: Suitable for various materials (metals like iron, aluminum, steel, copper, and non-metals in some cases).
• Complex Shapes: Capable of forming intricate internal/external structures, thin walls, and hollow sections.
• Cost-Effectiveness: Economical for high-volume production and large components.
• Design Flexibility: Minimal limitations on part size, shape, and surface finish (depending on the casting process).

1. Casting ProcessesSand Casting:Uses sand molds (reusable or disposable) for low-cost, large-scale production of complex parts (e.g., engine blocks, valves).
Die Casting:High-pressure injection of molten metal into reusable metal dies, ideal for high-precision, thin-walled parts (e.g., automotive transmission components, electronic housings).
Investment Casting:Creates detailed, smooth-surface parts via a wax pattern and ceramic mold (e.g., aerospace turbine blades, medical implants).
Gravity Die Casting:Molten metal flows into a mold by gravity, suitable for medium-sized parts with moderate precision (e.g., aluminum wheels).
Centrifugal Casting）:Uses centrifugal force to form hollow parts (e.g., pipes, cylinder liners).
2. Materials
Ferrous Metals: Cast iron (gray, ductile), carbon steel, alloy steel (high-strength applications).
Non-Ferrous Metals: Aluminum alloys (lightweight, corrosion-resistant), copper alloys (conductivity), magnesium alloys (ultra-light), zinc alloys (high-pressure die casting).
Other Materials: Some polymers or ceramics for specialized non-metal casting.
3. Design Considerations
Wall Thickness: Uniform thickness to avoid shrinkage defects; minimum/maximum thickness based on material and process.
Draft Angle: Angles on vertical surfaces to facilitate mold removal.
Fillet/Radius: Rounded internal/external corners to reduce stress concentrations and improve mold filling.
Surface Finish: Dependent on mold type (e.g., sand casting yields rough surfaces; die casting offers smooth finishes).
4. Quality Control
Non-Destructive Testing (NDT): Radiography, ultrasonic testing, dye penetrant inspection for internal/external defects.Mechanical Testing: Tensile strength, hardness, impact resistance tests.
Heat Treatment: Annealing, quenching, or tempering to improve material properties.
Post-Processing: Machining, coating, or surface finishing to meet dimensional/functional requirements.

1. Automotive IndustryEngine components: Cylinder blocks, cylinder heads, crankshafts, transmission cases (sand/die casting).Chassis parts: Suspension brackets, wheel hubs (aluminum die casting for lightweighting).Brake systems: Calipers, rotors (cast iron for heat resistance).2. Aerospace & AviationTurbine blades and vanes (investment casting for high-temperature alloys like Inconel).Structural components: Wing brackets, engine mounts (magnesium/aluminum alloys for strength and weight reduction).Landing gear parts: Complex geometries requiring high reliability.
3. Energy & PowerIndustrial turbines: Generator housings, steam turbine components (steel/iron casting).Renewable energy: Wind turbine hubs, gearbox casings (large-scale sand casting for ductile iron).Oil & gas: Valves, pumps, and connectors (corrosion-resistant alloys like duplex stainless steel).
4. Industrial EquipmentHeavy machinery: Gearboxes, frames, and housings for construction/agricultural equipment (cast iron for durability).Pumps and valves: For water treatment, chemical processing (cast steel, bronze for corrosion resistance).
5. Consumer GoodsElectronics: Heat sinks, laptop/phone frames (aluminum die casting for thermal management).Hardware: Faucets, door handles (zinc/copper alloy die casting for aesthetics and cost).
6. Medical & DentalImplants: Hip/knee prosthetics, dental crowns (titanium investment casting for biocompatibility).Surgical instruments: High-precision components with smooth surfaces.
7. Construction & ArchitectureStructural elements: Ornamental ironwork, manhole covers (gray iron casting).Pipes and fittings: Ductile iron pipes for water/gas distribution.

Die casting is an efficient metal forming process in which molten metal is injected into a mold cavity under high pressure. After cooling and solidification, parts with precise dimensions and good surface quality are produced. This process is particularly suitable for mass production and is widely used in sectors such as the automotive, aerospace and electronics industries.
In the die casting process, the metal is melted and then quickly injected into the mold at high pressure (typically between 150 and 1200 bar). This high-pressure injection ensures that the metal completely fills the complex structures of the mold, allowing parts to be produced with high precision and detail. The mold usually consists of two parts, which allows for easy removal of the casting after solidification.
Commonly used metals in die casting are low-melting alloys such as aluminum, zinc and magnesium. These materials are characterized by good flow properties and plasticity, which makes them suitable for the die casting process. Die-cast parts generally have a smooth surface and precise dimensions, which reduces the need for subsequent machining.
However, die casting also has its limitations. The cost of designing and manufacturing the molds is relatively high, which makes the process more economical for mass production. In addition, die casting is mainly suitable for low-melting-point metals, while its application for high-melting-point metals is limited.

Die casting is a manufacturing process in which molten metal is injected into a mold under high pressure and quickly cooled to obtain the desired shape. This process is used in numerous industries. In the automotive industry, die casting is used to produce key components such as engine blocks, transmission housings and wheel rims to ensure high strength and precision while reducing weight and increasing fuel efficiency. In the electronics industry, die casting is used to produce heat sinks, cell phone housings and connectors to meet the demands of miniaturization and complex designs. In the household appliances sector, die casting is used to produce structural parts for appliances such as washing machines and refrigerators to improve the durability and aesthetics of the products. In addition, die casting is widely used in tool manufacturing, toy production and lighting devices, highlighting its advantages in the efficient mass production of complex metal parts.

Rex factory covers an area of 6,000 square meters with a die casting shop,a CNC shop,2 spraying shops and 2 assembly lines. The die casting shop equipped with 10 sets of 120T-1000T die-casting machines,which can produce parts weighing up to 15 kg and provide daily output of 10,000 pcs/day. The CNC shop equipped with 12 sets of CNC machines,which has max processing dimension of 1200mm*900mm*500mm,and 10 sets of CNC turning machines,which has max processing diameter of 800mm. The spraying shops equipped with 3 lines of liquid and powder spraying,which includes Ceramic Coating,Nano-coating,Organosilicon Modified coating,etc that can withstand high temperature of 420°.
In addition, our greatest core competency is our professional experienced staff, we have 85 employees, 6 management personnel,12 technical personnel and 4 quality personnel.
Our engineers can provide the services of 3D model building,design optimization,mold designing,machining tooling and inspection fixture designing.

1.Temperature control
Pouring temperature:
Silicon aluminum alloy (such as ADC12): simple structural components at 610-630 ° C, complex components at 644-680 ° C 12.
Alloys with poor fluidity require an increase in temperature (e.g. A380 alloy can reach 720 ° C).
Mold temperature:
Aluminum alloy molds are recommended to be heated between 200-280 ° C, with higher temperatures required for thin-walled/complex parts.
2.Injection parameters
Injection speed:
Slow stage 0.1-0.5m/s (exhaust), fast stage 2-6m/s (filling) 45.
Thin walled components require a speed of ≥ 4m/s, while thick walled components can reduce the speed by 5.
Pressure ratio:
Thin walled components have a pressure range of 80-120MPa, while thick walled components can reduce pressure but require an increase of 5% in boost pressure.
3.Time parameter
Filling time: 0.01-0.1 seconds, extended by 3 seconds when the alloy temperature is high or the mold heat dissipation is fast.
Pressure holding time: ≥ 2 seconds, with an extension of 0.5 seconds for every 1mm increase in thick walled components.
4.Material and Composition Standards
ADC12 (Japanese standard, silicon content 10.5-12%), A380 (American standard, good fluidity) 7.
Domestic Y102/Y112 are suitable for different strength requirements.
Composition requirements:
Aluminum content ≥ 90%, silicon 7-12%, copper/magnesium adjusted by grade 8.

1.Temperature control
Pouring temperature:
Silicon aluminum alloy (such as ADC12): simple structural components at 610-630 ° C, complex components at 644-680 ° C 12.
Alloys with poor fluidity require an increase in temperature (e.g. A380 alloy can reach 720 ° C).
Mold temperature:
Aluminum alloy molds are recommended to be heated between 200-280 ° C, with higher temperatures required for thin-walled/complex parts.
2.Injection parameters
Injection speed:
Slow stage 0.1-0.5m/s (exhaust), fast stage 2-6m/s (filling) 45.
Thin walled components require a speed of ≥ 4m/s, while thick walled components can reduce the speed by 5.
Pressure ratio:
Thin walled components have a pressure range of 80-120MPa, while thick walled components can reduce pressure but require an increase of 5% in boost pressure.
3.Time parameter
Filling time: 0.01-0.1 seconds, extended by 3 seconds when the alloy temperature is high or the mold heat dissipation is fast.
Pressure holding time: ≥ 2 seconds, with an extension of 0.5 seconds for every 1mm increase in thick walled components.
4.Material and Composition Standards
ADC12 (Japanese standard, silicon content 10.5-12%), A380 (American standard, good fluidity) 7.
Domestic Y102/Y112 are suitable for different strength requirements.
Composition requirements:
Aluminum content ≥ 90%, silicon 7-12%, copper/magnesium adjusted by grade 8.

1、 Automotive manufacturing field
Lightweight core technology
Aluminum alloy die-casting parts can reduce car quality by 10%, achieve a reduction of 0.3-0.6L in fuel consumption per hundred kilometers, and reduce CO ₂ emissions by 8.5g/km.
Applied to engine systems, transmissions, three electric systems (battery/motor/electronic control), and body structural components, such as Tesla's integrated die-casting bottom plate, which can reduce the number of parts by 70%.
Breakthrough in new energy vehicles
For every 10% weight reduction in pure electric vehicles, the range increases by 5% -8%. Die casting technology has become the preferred process for key components such as battery pack shells and motor brackets.
2、 In the field of consumer electronics
Heat dissipation and structural components
Aluminum alloy die-casting parts are used for mobile phone frames and laptop shells, with both heat dissipation (thermal conductivity of 180W/m · K) and impact resistance.
The 5G base station radiator adopts die-casting technology to achieve a complex microchannel structure, which improves the heat dissipation efficiency by 40%.
Smart Home Applications
Intelligent door locks, router housings, and other products achieve IP67 protection level through die-casting, with salt spray corrosion resistance of over 1000 hours.
3、 Industrial and emerging fields
Aerospace
The aircraft engine mounts and landing gear components are made of magnesium alloy die-casting, reducing weight by 30% while maintaining strength.
Photovoltaic energy storage
The inverter casing is die cast to achieve IP65 protection and is suitable for extreme environments ranging from -40 ℃ to 85 ℃.
Medical devices
The surgical instrument handle is made of aluminum alloy die-casting, which meets the requirements of high temperature sterilization (121 ℃) and surface Ra ≤ 0.4 μ m