China Custom Aluminum Die Casting Services

Die casting services Material

steel die castings

High-precision steel alloy die castings, suitable for complex structures and precision parts.

It has good fluidity and is suitable for high-precision and thin-walled structure molding.
The surface has a high degree of smoothness, which is beneficial for electroplating and spraying.
Good dimensional stability and high repeatability
Long mold life, suitable for mass production

It has a higher density and a greater overall weight than aluminum and magnesium alloys.
Its high-temperature resistance is limited, making it unsuitable for high-temperature operating conditions.
Its strength is lower than that of steel and some aluminum alloys
Not suitable for products with extremely high lightweight requirements

Processing technology: Steel alloy smelting → High-pressure die casting → Deburring → Surface treatment

Machining tolerances:

Standard die-casting tolerance : ±0.20 mm
After finishing, the tolerance can reach ±0.05 mm (depending on the complexity of the structure).

Maximum size:

Maximum extrusion section width : ≤ 300 mm
Maximum extrusion length : ≤ 6000 mm
Minimum wall thickness : ≥ 1.2 mm (depending on the structure)

Supports rapid prototyping + small-batch trial production + mass delivery

Magnesium die castings

Lightweight, high-strength magnesium alloy die castings suitable for high-end structural applications.

With its low density and weight of about 30% lighter than aluminum, it is advantageous for lightweight design.
High specific strength and good rigidity, suitable for structural support components.
It has excellent heat dissipation performance and good electromagnetic shielding capability.
It has good formability and can realize complex thin-walled structures.

The material cost is higher than that of aluminum alloy.
Corrosion resistance needs to be improved through surface treatment.
Smelting and processing have high safety requirements.
Not suitable for long-term use in high-temperature environments

Processing technology: Magnesium alloy smelting → High-pressure die casting → Deburring → Surface treatment. Features: Lightest metal structural material, good shock absorption, can be formed into thin walls.

Machining tolerances:

Standard die-casting tolerance : ±0.20 mm
After finishing, the tolerance can reach ±0.05 mm (depending on the complexity of the structure).

Dimensional tolerances: Small parts (<50mm): 0.10~0.25mm; Medium parts (50~200mm): 0.25~0.55mm; Large parts (>200mm): 0.55~1.2mm

Geometric tolerances reference: Flatness: 0.15~0.6mm/1, Coaxiality: 0.20~0.4mm

Magnesium alloy

Material: AZ91D, AM60B
Features: High strength, good casting properties, and easy electroplating.

Aluminum die castings

Lightweight, corrosion-resistant, and with a high strength-to-weight ratio. Used in the manufacture of complex thin-walled automotive parts, aircraft components, and electronic products.

High forming precision and good dimensional consistency
Excellent surface quality reduces the need for subsequent processing.
High production efficiency, suitable for mass production
The strength-to-weight ratio is reasonable, making it suitable for structural applications.

It may contain air pockets and is not suitable for high airtightness requirements.
The mold cost is high, making it unsuitable for small-batch production.
Excessive thickness variation will affect molding quality.
Limited high temperature resistance

Processing technology: Aluminum alloy melting → High pressure die casting → Deburring → Finishing/Surface treatment

Materials: ADC12 (A383), A380, A360, ADC10 (A380), YL102, etc.

Features: Lightweight, high strength, corrosion resistant, excellent thermal and electrical conductivity

Tribute tea sizes: Small pieces (<50mm): ± 0.10~ ± 0.20mm; Medium pieces ( ± 50~ ± 200mm): 0.20~0.50mm; Large pieces (>200mm): ± 0.50~ ± 1.0mm

Geometric tolerances:

Flatness: 0.1~0.5mm/10
Coaxiality: 0.15~0.3mm

Maximum dimensions: Approximately 600 × 600 × 300 mm per piece (customizable)

Delivery time: Standard 20–30 days (including molds), negotiable for bulk orders.

Copper die castings

High temperature resistant and not prone to cracking under high temperature cycling. Easy to process and polish. European grade steel suitable for precision parts.

Excellent thermal fatigue performance, suitable for repeated high-temperature operating conditions.
Good toughness and crack resistance, long mold life
Stable high-temperature strength and strong resistance to softening
Uniform structure, dimensionally stable after heat treatment

The material cost is higher than that of ordinary tool steel.
Strict requirements for processing and heat treatment.
Hardness is less than that of high-speed steel materials
Not suitable for extremely high wear resistance applications

Processing technology: Copper alloy powder proportioning → Pressing → High-temperature sintering → Quenching + Tempering → Finishing

Material: Brass (e.g., C87850)
Features: Wear-resistant, good electrical and thermal conductivity, relatively high cost

Machining tolerances:

Standard die-casting tolerance : ±0.20 mm
After finishing, the tolerance can reach ±0.05 mm (depending on the complexity of the structure).

Dimensional tolerances: Small parts (<50mm): 0.15~0.30mm, Medium parts (50~200mm): 0.30~0.60mm, Large parts (>200mm): 0.60~1.5mm

Geometric tolerances:

Flatness: 0.2~0.8mm/10
Coaxiality: 0.25~0.5 mm

Geometric tolerances:

Maximum dimensions: Approximately 300 × 300 × 120 mm per piece (customizable)

Delivery time: 20-30 days normally, negotiable for large orders.

Zinc die castings

It has excellent heat resistance, is tougher than H13 steel, has better thermal conductivity, and a longer service life, making it suitable for heavy-duty casting operations.

Excellent thermal fatigue performance, suitable for repeated high-temperature operating conditions.
It has higher toughness than ordinary H13 and stronger crack resistance.
Stable high-temperature strength and long mold life
Uniform structure, minimal deformation after heat treatment

High material and processing costs
The heat treatment process has strict requirements.
The hardness is slightly lower than that of high-speed steel.
Not suitable for ultra-high abrasion resistance applications

Processing technology: Zinc alloy powder proportioning → Pressing → High-temperature sintering → Quenching + Tempering → Finishing

Material: Zamak 3, Zamak 5 (Zinc Alloy 3/5)
Features: High strength, good casting properties, and easy electroplating.

Machining tolerances:

Standard die-casting tolerance : ±0.20 mm
After finishing, the tolerance can reach ±0.05 mm (depending on the complexity of the structure).

Geometric tolerances: Small parts (<50mm): ± 0.05~ ± 0.15mm; Medium parts (50~200mm): ± 0.15~ ± 0.35mm; Large parts (>200mm): ± 0.35~ ± 0.8mm

Maximum dimensions: Approximately 300 × 300 × 120 mm per piece (customizable)

Delivery time: 20-30 days normally, negotiable for large orders.

steel die castings

Magnesium die castings

Aluminum die castings

Copper die castings

Zinc die castings

*For materials not listed here,

Name	Applicable materials	color	Can be used in combination with the following methods:
Chemical Thin Films	aluminum	Transparent Gold	Sandblasting, tumble polishing, anodizing
Anodizing	aluminum	Transparent, black, gray, red, blue, gold	Sandblasting, tumbling
black oxides	Steel, stainless steel	black	Sandblasting, tumbling
Electroless nickel plating	Aluminum, steel, stainless steel	—	Sandblasting, tumbling
Electropolishing	Steel, stainless steel	—	—
Hand polishing	acrylic fiber	—	Improve appearance
Sandblasting	Aluminum, steel, stainless steel, brass, bronze, copper	—	All post-processing processes except electropolishing and powder coating
Nickel plating	Aluminum, steel, stainless steel	—	Sandblasting, tumbling
passivation	Steel, stainless steel	—	Black oxidation, electroless nickel plating, zinc plating, tumble polishing, sandblasting
Powder coating services	Aluminum, steel, stainless steel	Complete Pantone or RAL color catalog	—

Die casting services Industrial applications

Automotive parts

Die casting is widely used in the production of automotive engine blocks, housings, and structural supports. This process allows for the creation of complex shapes with minimal machining. High dimensional accuracy ensures proper assembly and mechanical properties. Stable material properties enhance the product's durability under the thermal and mechanical stresses of the automotive environment.

Consumer electronics

Housing components, heat sinks, and connectors are typically manufactured using die casting. Thin walls and precise dimensions allow for more compact product designs without compromising strength. Tight tolerances reduce post-processing requirements and improve assembly efficiency. This facilitates the mass production of high-quality, high-reliability electronic products.

Industrial machinery

Die-cast components, such as gears, levers, and housings, provide stability and precision for heavy machinery. High-volume production ensures consistency in parts. Reduced machining requirements shorten delivery times and lower costs. This contributes to improved operational reliability of industrial systems and reduced maintenance.

Aerospace applications

Die-cast housings and connectors are widely used in telecommunications equipment, providing mechanical protection and signal integrity. The die-casting process enables the production of components that are small, lightweight, have tight tolerances, and a high strength-to-weight ratio. Uniform material density helps maintain mechanical properties under stress. Complex geometries can be produced without extensive post-processing, ensuring safety, reliability, and efficiency for aerospace applications. Precise dimensions improve assembly quality and system stability. High repeatability supports large-scale deployment. Durable material properties extend the lifespan of network equipment.

Telecommunications equipment

Die-cast housings and connectors are widely used in telecommunications equipment, providing mechanical protection and ensuring signal integrity. Precise dimensions improve assembly quality and system stability. High repeatability supports large-scale deployment. Durable material properties extend the lifespan of network equipment.

Medical equipment

Die casting processes can produce precision housings, supports, and functional components for medical devices. The excellent surface finish ensures compliance with sterilization and hygiene standards. Reduced dimensional tolerances improve assembly accuracy. This ensures the products are safe, reliable, and perform consistently in medical applications.

Power tools

The motor housing, gear cover, and structural components all benefit from the strength and precision of the die-casting process. Consistent dimensions reduce vibration and noise during operation. High repeatability enables efficient mass production. The result is a robust, reliable power tool suitable for harsh working environments.

Robotics

Die casting provides lightweight yet robust components for robotic arms, joints, and mounting brackets. Complex shapes can be achieved with minimal machining. Tight tolerances ensure smooth movement and precise positioning. This guarantees stable and repeatable robotic operation in automated production lines.

Home appliances

Die casting is used to manufacture durable metal components for household appliances such as washing machines, air conditioners, and kitchen equipment. Consistent quality ensures reliable assembly and operation. Reduced post-processing steps shorten production cycles, thereby extending product lifespan and improving performance for the end user.

Lighting equipment

Die casting processes enable the production of heat sink housings for LED luminaires and high-performance lighting equipment. Precise dimensions ensure proper assembly and fitting. Smooth surfaces reduce subsequent machining requirements. This guarantees reliable operation and aesthetic appeal for both commercial and residential lighting.

Smart home devices

Die-cast housings for sensors, locks, and control units combine compactness and durability. Consistent quality ensures long-term performance and reliability. Minimal post-processing reduces manufacturing costs. This enables the efficient production of high-quality smart devices for the mass market.

Industrial locks and hardware

Die casting allows for the production of complex lock bodies, handles, and mechanical components. High repeatability ensures precise operation of each unit. Material strength and dimensional stability enhance security and durability. This is crucial for industrial security and access control systems.

Aerospace instruments

Die casting technology provides structural support for aerospace instruments. The lightweight design combined with high strength ensures precision assembly. Dimensional consistency guarantees accurate calibration and operation, which is crucial for reliable operation under harsh flight conditions.

Office equipment

Die-cast components in printers, copiers, and scanners provide structural integrity and precise mechanical movement. Consistency reduces assembly problems and operational errors. Complex shapes can be formed without extensive secondary machining. This contributes to increased productivity and product reliability in office environments.

Energy equipment

Die-cast components, such as housings, brackets, and connectors, are widely used in renewable energy equipment and electrical systems. High material density ensures their durability under thermal and mechanical stresses. Tight tolerances guarantee reliable system integration. This contributes to long-term stability and high performance in energy applications.