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TONGFEN CNCPrecision Manufacturing
★ OEM & Custom Zinc Die Casting Service Supplier in China
Custom Zinc Die Casting Manufacturer in China
High-precision zinc die cast components with thin-wall capability, excellent surface finish and consistent production quality for automotive, electronics, hardware and industrial applications.
We provide DFM analysis, mold design, high-pressure zinc die casting, trimming, CNC machining, polishing, plating, assembly and quality inspection for highly detailed metal components.
Zamak 3, Zamak 5 & ZA Alloys
Thin-Wall Detail
Plating & Finishing
Prototype to Production
What Is Zinc Die Casting?
Zinc die casting is a fast-cycle metal forming process in which molten zinc alloy is injected under high pressure into a hardened steel mold cavity. Once solidified, the mold opens and the part is ejected — delivering excellent detail, dimensional accuracy and thin-wall capability.
We support Zamak 3, Zamak 5, ZA-8 and hot-chamber process for high-volume production runs.
Learn more about the casting process →How Zinc Die Casting Works
1
Design & DFM
2
Tooling
3
Melting
4
Injection
5
Cooling
6
Ejection
7
Trimming
8
Machining
9
Finishing
10
Inspection
11
Assembly
12
Shipping
Why
Why Choose Zinc Die Casting?
Thin Wall Capability
★Wall thickness approximately 0.8–3.0 mm
★Complex ribs and details
★Lightweight design
Excellent Surface Finish
★Smooth as-cast surfaces
★Chrome plating
★Nickel plating
★Powder coating
Longer Tool Life
★Lower melting temperature
★Reduced die wear
★Cost-effective production
High Production Efficiency
★Fast cycle time
★High-volume manufacturing
★Consistent repeatability
Design Integration
★Multiple features in one casting
★Reduced assembly
★Lower manufacturing cost
Our Zinc Die Casting Capabilities
Advanced hot & cold chamber machines paired with in-house tooling, machining and finishing.
High-Pressure Zinc Die Casting
Advanced machines deliver consistent, defect-free zinc die cast parts
Multi-Slide Die Casting
Rapid tooling and flexible processes for prototypes and small batches
Multi-Cavity Tooling
Multi-cavity molds for high efficiency and stable mass production
Thin-Wall &Fine Detail
Excellent thin-wall capability and fine detail reproduction to 0.3 mm
CNC Secondary Machining
Precision machining for critical features, threads, and tight tolerances.
Plating, Finishing& Assembly
Chrome, nickel, powder coat, painting and full sub-assembly services.
Materials
Zinc Die Casting Alloys We Support
Advantages of Zinc Die Casting
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Excellent detail reproduction
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Superior surface finish
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Very Thin-wall capability
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Good dimensional stability
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Fast production cycle
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Strong impact resistance
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Cost-effective tooling
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Long mold life
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Excellent plating capability
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Strong threads and small bosses
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Low secondary finishing effort
Zinc Die Casting Mold Design and DFM Analysis
Our DFM team evaluates part geometry, draft angle, wall thickness, ribs, ejector pin locations and gating routing before tool cutting. This ensures optimum flow, minimum defects, shrinkage, mold filling efficiency, dimensional stability and repeatable production.
Why DFM Matters
DFM helps reduce cold shuts, flash, incomplete filling, warpage, plating defects, tooling changes and unnecessary cost.
Learn about our DFM process →
Why Choose Us for Zinc Die Casting
Trusted manufacturing expert providing high-quality zinc die casting solutions with precision tooling, advanced processes, and reliable service from prototype to production.
Fast Engineering Review
Quick DFM feedback and quotation.
Mold Design &DFM Support
Optimized design for quality and cost.
Multiple Zinc Alloy Options
Zamak 3, 5, 7 and ZA-8 available.
Thin-Wall & Fine Detail Capability
Complex shapes with high precision.
Advanced Tooling & Equipment
High-pressure machines and precise tooling.
CNC Machining& Finishing
Dimensional accuracy and perfect fit.
Plating & Surface Finishing
Aesthetic and corrosion resistance.
Strict Quality Control
ISO 9001 certified with full inspections.
Competitive Price & On-Time Delivery
Reliable delivery with cost efficiency.
Global Delivery & Support
Worldwide shipping and technical support.
Applications of Zinc Die Casting
Zinc die casting parts are used in a wide range of industries where precision, strength, appearance, and durability are essential
Automotive Components
Engine parts, brackets
Electronics Components
Housings, connectors
Connectors & Hardware
Locks, hinges, fittings
Industrial Equipment
Appliance parts
Furniture & Hardware
Handles, ornaments
Consumer Products
Handles, ornaments
CUSTOM PARTS
Custom Zinc Die Cast Parts We Manufacture
Connectors
Handles and Knobs
Locks and Latches
Small Housings
Automotive Hardware
Electronics Components
Decorative Hardware
Brackets and Mounts
Gears and Mechanisms
Hinges
Fasteners and Inserts
Custom Precision Components
As Cast
Polishing
Chrome Plating
Black Nickel
Brushed
Nickel Plating
Powder Coating
Gold PlatingSurface Finishes for Zinc Die Cast Parts
Enhance your zinc die cast parts with a variety of professional finishes including chrome plating, powder coating, polishing, painting and specialty coatings.
As CastVibratory FinishingTumblingBead BlastingPolishingBrushingPowder CoatingWet PaintingE-CoatingCopper-Nickel-Chrome PlatingBlack NickelBlack ChromeNickel PlatingChrome PlatingLaser MarkingSilk ScreeningQuality Control & Inspection
Comprehensive quality assurance from raw material inspection to final delivery, backed by international certifications.
- ISO 9001:2015
- IATF 16949
- CMM Inspection
- X-Ray Testing
- Salt Spray Test
- Material Analysis
- Dimensional Check
- Surface Testing
CMM Inspection
Dimension Inspection
Plating Thickness Test
Surface InspectionReady to Start Your Zinc Die Casting Project?
Upload your CAD file and get a fast, competitive quote from our engineering team.
Rapid Prototyping
From Zinc Die Cast Prototypes to Production
Prototype and Design Validation
CNC machining, rapid tooling or limited casting trials can support early verification.
Low-Volume Zinc Die Casting
Bridge production and specialized programs where tooling economics are suitable.
Production Zinc Die Casting
Recurring and high-volume programs requiring fine detail and repeatability.
Decorative Zinc Die Casting for Premium Appearance
Zinc die casting is widely used for handles, knobs, locks, consumer hardware, appliance parts, bathroom hardware, furniture hardware and automotive trim.
Cosmetic design should consider parting lines, ejector marks, polishing allowance, plating thickness, gloss, texture and logo quality.
Common Zinc Die Casting Defects and Prevention
Typical defects include cold shuts, misruns, flash, flow marks, blisters, porosity, warpage, ejector marks, plating pits and surface scratches.
We reduce risk through proper gate and runner design, effective venting, stable melt and die temperature, balanced filling, controlled polishing, plating preparation and tool maintenance.
Thin-Wall Zinc Die Casting
Zinc alloys provide excellent fluidity and can produce thin walls, small details and integrated features.
Final wall thickness must be confirmed through DFM and flow analysis.
Zinc Die Casting vs Aluminum Die Casting
Zinc Die Casting vs CNC Machining
Secondary CNC Machining for Zinc Die Cast Parts
Design Guidelines for Zinc Die Cast Parts
Keep wall thickness uniformAdd adequate draft angleUse ribs instead of heavy sectionsAvoid sharp internal cornersUse fillets and radiiMinimize unnecessary undercutsConsider parting linePlan ejector pin locationsAdd plating allowanceDesign bosses carefullyAvoid isolated thick sectionsDefine cosmetic surfacesUse realistic tolerancesIdentify polished and plated areasTool Life
Zinc Die Casting Mold Maintenance and Tool Life
Zinc's lower casting temperature often supports longer die life than aluminum, but proper lubrication, slide maintenance, ejector maintenance, gate inspection, cooling-channel care and mold cleaning remain essential.
REQUEST A QUOTE
Our Zinc Die Casting Process
Send your drawing, material notes, quantity, and project details. We will review the part and provide a quotation with practical machining guidance.
1
Upload CAD Files
2
DFM Review
3
Alloy and Tooling Recommendation
4
Quotation
5
Mold Design
6
Tool Manufacturing
7
Mold Trial and Samples
8
Process Adjustment
9
Production Zinc Die Casting
10
Trimming and Deburring
11
CNC Secondary Machining
12
Polishing and Plating
13
Quality Inspection
14
Packing and Delivery
Start Your Zinc Die Casting Project
Need custom zinc connectors, handles, locks, housings, automotive hardware, decorative components or precision mechanisms? Upload your CAD files and requirements to receive a fast zinc die casting quotation, DFM feedback and alloy recommendations.
Upload Drawing NowFrequently Asked Questions About Zinc Die Casting
What is zinc die casting?
Zinc die casting injects molten zinc alloy under high pressure into a reusable steel mold to produce detailed metal parts.
What zinc die casting services do you offer?
DFM, mold design, tool manufacturing, casting, trimming, CNC machining, polishing, plating, assembly and inspection.
What zinc alloys can you die cast?
Zamak 3, Zamak 5, Zamak 7, ZA-8 and other customer-specified zinc alloys.
What is the difference between Zamak 3 and Zamak 5?
Zamak 3 offers excellent castability and finishing, while Zamak 5 provides higher strength and hardness.
Do you provide mold design and manufacturing?
Yes. Mold design, DFM and tool manufacturing are available.
Can you make prototypes?
Prototype evaluation may use CNC machining, rapid tooling or limited casting trials depending on the project.
Do you support low-volume zinc die casting?
Yes, when tooling economics and project requirements make the process suitable.
What wall thickness can you achieve?
Common guidance is approximately 0.8–3.0 mm, but final capability depends on size, flow length and geometry.
What tolerances can you achieve?
Tolerance depends on alloy, size, geometry, tooling and whether critical features receive CNC machining.
Can zinc die cast parts be CNC machined?
Yes. Precision holes, threads, bores, sealing faces and fits can be machined after casting.
What surface finishes are available?
Polishing, nickel plating, chrome plating, black finishes, powder coating, painting and laser marking are available.
Can zinc die cast parts be chrome plated?
Yes. Zinc is well suited to decorative and functional plating when polishing and surface preparation are controlled.
Can you produce decorative hardware?
Yes. Handles, knobs, locks, latches and decorative fittings are common zinc die casting applications.
How do you prevent plating defects?
Part design, polishing, cleaning, surface preparation, coating control and inspection help reduce pits, peeling and cosmetic defects.
What CAD files do you accept?
STEP, STP, IGES, X_T, SLDPRT, STL, DWG, DXF and PDF drawings.
Do you provide inspection reports?
Yes. Dimensional, material, trial, plating and coating reports can be provided when requested.
Do you ship globally?
Yes. We supply customers worldwide.
Are you a zinc die casting factory or trading company?
We are direct zinc die casting factory in China. We operate our own die casting machines, tooling workshop, CNC machining, and finishing lines in-house — not through subcontractors or trading agents.
