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High-Pressure Die Casting Solutions

Die Casting dominates automotive, electronics, and industrial equipment sectors for mass production. Key parts:
  • Engine transmission housings
  • Heat sink assemblies
  • Power tool body frames
  • LED lighting enclosures
  • Pump and valve bodies
  • Aerospace sensor casings

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Die Casting
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Advanced Manufacturing Capabilities

Integrating Engineering Expertise, Advanced Manufacturing Processes, and Flexible Production Capabilities to Support Product Development from Initial Prototypes to Scalable Production.

High-Pressure Die Casting

Produces thin-walled complex parts (e.g., engine housings) with rapid high-pressure injection. Achieves high precision but may cause porosity, requiring process control.

Vacuum Die Casting

Removes mold air pre-injection to minimize porosity, enhancing part integrity. Ideal for critical EV battery enclosures requiring durability, though tooling costs exceed standard methods.

Semi-Solid Die Casting

Uses partially solidified slurry (30-60% solid) to minimize shrinkage and improve structural integrity. Perfect for aerospace valves but needs precise temperature control.

Squeeze Casting

Applies extreme pressure (1,000+ MPa) post-filling to eliminate voids and boost material density. Produces dense parts like wheel hubs but requires strong molds.

Our Precision Die Casting Parts

Specializing in aluminum/zinc die casting (100-3000T machines), we produce high-volume components with ±0.1mm tolerances and 1.5μm surface finish. Our automated cells yield 50,000+ monthly parts for automotive, IoT, and consumer electronics, featuring thin walls (0.6mm), threaded inserts, and customized alloys
Brass Casting
  • 10+ Years of Die Casting Services
  • Tolerances as tight as ±0.0004 in.（0.01mm）
  • MOQ：100 PCS
  • Lead times as fast as 15 working days
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High Pressure Die Casting Al Motor Housing & End Cover
  • 10+ Years of Die Casting Services
  • Tolerances as tight as ±0.0004 in.（0.01mm）
  • MOQ：100 PCS
  • Lead times as fast as 15 working days
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Customized Water Pump Housing
  • 10+ Years of Die Casting Services
  • Tolerances as tight as ±0.0004 in.（0.01mm）
  • MOQ：100 PCS
  • Lead times as fast as 15 working days
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Die Casting Materials

High-pressure casting of aluminum A380, zinc ZAMAK 3, and magnesium AZ91D with ±0.25mm tolerances. Multi-slide machines produce thin-wall (1.2mm) components for automotive and IoT housings with Class A surface finishes.

Metals

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Extremely lightweight (67% aluminum density), good vibration damping, requires surface treatment.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Excellent malleability, corrosion-resistant, decorative finishes, suitable for intricate stamped panels.
Price: $0
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High electrical conductivity, soft yet work-hardening, requires annealing during multi-stage forming.
Price: $0
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Cost-effective formability, high strength-to-weight ratio, requires anti-rust coating for exposed edges.
Price: $0
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Corrosion-resistant, retains strength after welding, maintains integrity in harsh environments.
Price: $0
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Aerospace-grade strength, biocompatible, seawater corrosion resistance, difficult to machine.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Plastics

Fast-flowing melt, low shrinkage (0.4-0.7%), requires pre-drying (80°C/4h), ideal for automotive dashboards and consumer electronics housings.
Price: $0
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High melt viscosity (300-350°C processing), moisture-sensitive (0.02% max), optical-grade clarity for LED lenses and medical device components.
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Crystallization-sensitive cooling (80-120°C mold), high dimensional stability, precision gears and fuel system valves.
Price: $0
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Moisture absorption (2.5-3.5%) requires post-molding annealing, self-lubricating bushings and automotive cable ties.
Price: $0
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Extreme processing temps (380-400°C), low shrinkage (0.1-0.3%), aerospace bushings and surgical sterilization trays.
Price: $0
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Heat distortion resistance (150°C), electrical insulation, glass-fiber reinforced automotive connectors.
Price: $0
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Aerospace-grade strength, biocompatible, seawater corrosion resistance, difficult to machine.
Price: $0
Lead Time: < 10 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Lightweight, high thermal conductivity, Excellent Machinability, Superior Dimensional Stability, Tight-Tolerance Capable, Perfect for Complex CNC Milling and Turning.
Price: $0
Lead Time: < 5 days
Tolerances: ±0.005″ (±0.125mm)
Max part size: 200 cm x 80 cm x 100 cm

Low melt strength (LDPE: 160-240°C), high flow rate for thin-wall containers and chemical-resistant pipeline fittings.
Price: $0
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Low density (0.9g/cm³), living hinge capability, disposable syringes and automotive HVAC ducts.
Price: $0
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High mold temperature (60-80°C) reduces internal stress, low warpage, replaces glass in automotive taillights and cosmetic packaging.
Price: $0
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Die Casting Tolerances and Standards

With precision die casting services, Bright Future is your ideal partner to create precision machined prototypes and parts tolereance is down to±0.0004 in. We can also achieve special tolerances as long as you indicate your requirements for your drawing.

Surface Finishes by Material

Different materials require different finishing processes. Explore the most suitable surface finishes for aluminum, stainless steel, titanium, brass, copper, engineering plastics, and more to achieve the ideal balance of protection, appearance, and performance.

As Machined
As Machined
Description: Standard finish with surface roughness of 3.2 μm (126 μin), removes sharp edges and deburrs parts cleanly. Key Use: Functional parts requiring no post-processing (e.g., brackets, gears). Process Tolerance: Dimensional ±0.1 mm, Ra 3.2±0.5 μm Process Specifications: ISO 2768-m standard, burr height ≤0.05 mm
Anodizing
Anodizing
Description: Electrochemical oxide layer for corrosion resistance and aesthetics. Process Compatibility: Post-machining surface treatment Key Use: Aerospace components, consumer electronics (e.g., phone frames). Process Tolerance: Coating thickness 10-25 μm±2 μm, color consistency ΔE≤1.5 Process Specifications: MIL-A-8625 or ISO 7599, sealing pH 5.5-6.5
Alodine
Alodine
Description: Chemical film for corrosion protection and paint adhesion. Process Compatibility: Post-cleaning chemical immersion Key Use: Aviation and automotive electrical housings. Process Tolerance: Film thickness 0.5-3 μm, visual uniformity Process Specifications: Immersion time 3-10 min, bath temp. 20-30℃
Black Oxide
Black Oxide
Description: Thin magnetite layer for corrosion resistance and reduced glare. Process Compatibility: Post-machining chemical treatment Key Use: Tools, firearms, automotive fasteners. Process Tolerance: Coating thickness 0.5-1.5 μm, salt spray ≥24 hrs Process Specifications: Alkaline bath pH 13-14, process time 5-30 min
Brushed Finish
Brushed finish
Description: Linear abrasive finish for decorative texture. Process Compatibility: Manual/CNC abrasive belts Key Use: Appliance panels, architectural trims. Process Tolerance: Texture depth 0.05-0.2 mm, angle deviation ≤5° Process Specifications: Abrasive belt grit 80-240, feed speed 10-30 m/min
Etching
Etching
Description: Chemical/mechanical removal for micro-texturing or marking. Process Compatibility: Laser/chemical masking Key Use: Circuit boards, decorative logos. Process Tolerance: Etch depth 0.01-0.5 mm±5%, alignment ±0.1 mm Process Specifications: Etchant concentration 10-30%, laser power 20-100 W
Electroless Plating
Electroless Plating
Description: Uniform metal coating (e.g., nickel) without electricity. Process Compatibility: Chemical bath deposition Key Use: Wear-resistant industrial valves, connectors. Process Tolerance: Coating thickness 5-50 μm±5%, porosity ≤5/cm² Process Specifications: Bath temp. 85-95℃, pH 4.5-5.5
Electroplating
Electroplating
Description: Electrochemical metal coating (e.g., chrome, zinc) for durability. Process Compatibility: Post-machining electrodeposition Key Use: Automotive trim, jewelry. Process Tolerance: Coating thickness 5-25 μm±2 μm, adhesion ≥4B (ASTM B571) Process Specifications: Current density 1-10 A/dm², bath temp. 40-60℃
Electrophoretic Coating
Electrophoretic
Description: Polymer coating via electric field for corrosion resistance. Process Compatibility: Post-cleaning immersion Key Use: Automotive frames, HVAC components. Process Tolerance: Coating thickness 15-30 μm±3 μm, edge coverage ≥80% Process Specifications: Voltage 50-300 V, cure 160-200℃×20 min
Electropolishing
Electropolish
Description: Electrochemical finishing for smoother, cleaner, corrosion-resistant surfaces with a bright finish. Process Compatibility: Post-machining. Key Use: Medical, pharmaceutical, semiconductor, and aerospace parts. Process Tolerance: Material removal 5–25 μm, Ra 0.1–0.4 μm. Process Specifications: ASTM B912 or ISO 15730 with controlled electrolyte and current density.
Grinding
Grinding
Description: Precision abrasive finish for tight tolerances. Process Compatibility: Surface/cylindrical grinding Key Use: Bearing races, hydraulic shafts. Process Tolerance: Dimensional ±0.005 mm, Ra 0.4-0.8 μm Process Specifications: Wheel grit 60-120, coolant flow 5-20 L/min
Heat Treatment
Heat Treatment
Description: Thermal process to alter material hardness/toughness. Process Compatibility: Post-machining quenching/tempering Key Use: Gears, cutting tools. Process Tolerance: Hardness HRC 45-60±2, distortion ≤0.1% Process Specifications: Quench temp. 800-1000℃, temper time 1-4 hrs
Knurling
Knurling
Description: Diamond or linear pattern for improved grip. Process Compatibility: CNC lathe rolling Key Use: Handles, adjustment knobs. Process Tolerance: Pattern depth 0.2-0.5 mm, pitch ±0.05 mm Process Specifications: Roller pressure 200-500 N, feed 10-50 mm/min
Laser Engraving
Laser Engraving
Description: Permanent marking via laser ablation. Process Compatibility: Post-processing laser systems Materials: Metals, plastics, wood Key Use: Serial numbers, branding on industrial parts.
Overmolding
Overmolding
Description: Molding soft material (TPU/silicone) over rigid inserts. Process Compatibility: Injection molding Materials: Plastics, metals (as inserts) Key Use: Ergonomic handles, waterproof seals. Process Tolerance: Overmold thickness 1-5 mm±0.2 mm, bond strength ≥5 MPa Process Specifications: Injection pressure >5 MPa, mold temp. 40-80℃
Polishing
Polishing
Description: Mirror-like finish via abrasive compounds. Process Compatibility: Manual/robotic buffing Key Use: Medical instruments, luxury fixtures. Process Tolerance: Ra 0.025-0.1 μm, gloss ≥90 GU Process Specifications: Wheel speed 1000-3000 rpm, compound grit 2000-5000
Passivation
Passivation
Description: Acid treatment to remove free iron and enhance corrosion resistance. Process Compatibility: Post-cleaning chemical immersion Key Use: Surgical tools, food processing equipment. Process Tolerance: Film thickness 0.001-0.01 μm, salt spray ≥96 hrs Process Specifications: Nitric acid 20-50%, process time 20-60 min
Powder Coating
Powder Coating
Description: Electrostatic polymer powder cured into durable film. Process Compatibility: Post-cleaning spray and bake Key Use: Outdoor furniture, automotive wheels. Process Tolerance: Coating thickness 60-120 μm±10 μm, ΔE≤1.0 Process Specifications: Voltage 30-90 kV, cure 180-200℃×15 min
Phosphating
Phosphating
Description: Phosphate layer for lubrication and paint adhesion. Process Compatibility: Chemical immersion Key Use: Engine components, firearm parts. Process Tolerance: Coating weight 2-5 g/m², crystal size ≤5 μm Process Specifications: Bath pH 2-4, process temp. 40-70℃
Painting
Painting
Description: Liquid coating for color and protection. Process Compatibility: Spraying/dipping Materials: Metals, plastics Key Use: Consumer electronics, automotive body panels. Process Tolerance: Coating thickness 20-50 μm±5 μm, adhesion ≥3B (ASTM D3359) Process Specifications: Spray pressure 0.3-0.6 MPa, cure 80-120℃×30 min
Sandblasting
Sand blasting
Description: Abrasive jet finish for uniform matte texture. Process Compatibility: Post-machining blasting Materials: Metals, glass, stone Key Use: Architectural facades, engine blocks. Process Tolerance: Ra 1.6-6.3 μm, coverage ≥95% Process Specifications: Grit size 80-120, air pressure 0.4-0.7 MPa
Teflon Coating
Teflon Coating
Description: Non-stick, chemical-resistant polymer layer. Process Compatibility: Spraying/baking Materials: Metals, ceramics Key Use: Cookware, chemical valves. Process Tolerance: Coating thickness 15-50 μm±5%, non-stick cycles ≥1000 Process Specifications: Sintering 360-400℃, cure time 10-30 min
Tumbling
Tumbling
Description: Barrel polishing for edge rounding and deburring. Process Compatibility: Vibratory/rotary barrels Materials: Metals, plastics Key Use: Jewelry, small hardware components. Process Tolerance: Edge radius R0.1-0.5 mm, weight loss ≤1% Process Specifications: Media size 3-10 mm, speed 10-30 rpm, time 1-12 hrs
SPI Finish
SPI Finish
Description: Graded texture (e.g., SPI-A1 for glossy, SPI-C3 for matte). Process Compatibility: EDM, polishing Materials: Tool steel, aluminum molds Key Use: Plastic injection molds for consumer products. Process Tolerance: Ra 0.05-1.6 μm, texture replication ≥90% Process Specifications: SPI-SPE-1 standard, EDM current 5-50 A

What is Die Casting?How Does Die Casting Work?‌

Die Casting is a ‌high-pressure metal casting process‌ that forces molten metal (e.g., aluminum, zinc, or magnesium alloys) into a reusable steel mold (die) to produce precise, complex-shaped parts‌. Known for its efficiency and repeatability, it creates components with excellent surface finish, dimensional accuracy, and structural integrity‌. Common applications include automotive parts, electronic housings, and industrial machinery components‌.

  • Die Preparation‌:A two-part steel mold (die) is preheated and coated with lubricant to facilitate part release and cooling‌. The die is clamped under high pressure to withstand molten metal injection‌.
  • Metal Injection‌:Molten metal is melted in a furnace (e.g., aluminum at 600–700°C) and injected into the die cavity at high pressure (10–210 MPa)‌.In ‌hot-chamber die casting‌ (for low-melting-point metals like zinc), the injection system is submerged in molten metal. ‌Cold-chamber die casting‌ (for aluminum/magnesium) uses a separate chamber‌.
  • Cooling & Solidification‌:The metal rapidly cools and solidifies within the die, retaining the mold’s intricate details‌. Cooling channels in the die regulate temperature to minimize defects like porosity‌.
  • Ejection & Finishing‌:The die opens, and ejector pins release the solidified part‌.Excess material (flash, sprues) is trimmed, and surfaces are polished, painted, or plated for enhanced aesthetics and functionality‌.

Success Stories of Die Casting Projects

FAQs

What is the difference between die casting and Mould casting?‌

Die casting injects molten metal at 10-175MPa pressure into steel molds, achieving ±0.05mm tolerances and 1.6-12.5μm surface finishes. Gravity 

casting relies on atmospheric pressure, resulting in ±0.5mm tolerances and 25-50μm finishes. Die casting suits high-volume production (500-1000 

shots/day) of complex geometries, while mold casting is preferred for low-volume, large components with simpler designs.

Die cast mold manufacturing follows a rigorous 5-stage process:

  • CAD design validation (DFM analysis)

  • CNC machining of hardened steel blocks (±0.01mm accuracy)

  • Cooling channel integration (conformal or baffle designs)

  • Surface enhancement (nitriding, polishing to Ra 0.2μm)

  • Trial runs with thermal imaging for hotspot detection.

  • This ensures dimensional stability under cyclic thermal stress (ΔT 300-700°C).

Die casting utilizes high-grade tool steel molds (H13, P20) consisting of fixed and movable halves. The stationary fixed half aligns with the injection 

system, while the movable half integrates with the ejector mechanism. These precision-machined dies withstand 500-1200°C molten metal 

temperatures and 10,000-100,000+ cycles. Material selection depends on production volume (prototype vs. mass production), alloy type 

(Aluminum/Zinc/Magnesium), and part complexity (thin walls, tight tolerances).