Die Casting Vietnam

Die Casting Services Vietnam
Aluminum, Zinc & Magnesium

High-volume aluminum (A380, ADC12) and zinc (Zamak 3, 5) die casting via our Verified Partner Network foundries in Ho Chi Minh City. Post-cast CNC machining, CMM inspection, and finishing all completed in-house — single point of contact, zero middlemen.

Vietnam’s Section 301 tariff rate is 0% versus 25–145% from China. Combined with EVFTA zero-duty access to the EU, sourcing aluminum castings from VNcontX cuts your landed cost by 30–40% without touching your quality spec. ISO 9001:2015. CMM report every shipment.

Die casting Vietnam — aluminum HPDC production at VNcontX partner facility Ho Chi Minh City
±0.005mm Post-CNC Tolerance
15–20 Days T1 Sample Lead Time
98.4% On-Time Delivery
0% Tariff Section 301 (vs China)

Why Source Die Casting from VNcontX Vietnam

Most Vietnam die casting suppliers hand you raw castings and walk away. VNcontX runs the complete post-cast value chain in our own facility: 5-axis CNC machining to ±0.005mm, EDM for hardened inserts, anodizing, powder coating, and Zeiss Contura CMM verification — before anything ships. One purchase order covers everything.

  • 0% Section 301 tariff — saves 25–145% vs China-sourced castings
  • Post-cast CNC ±0.005mm — in-house DMG Mori 5-axis, Cpk ≥ 1.67
  • CMM report every order — Zeiss Contura + Mitutoyo, FAI included
  • T1 samples 15–20 days — full dimensional balloon report included
  • No MOQ — prototype quantity to high-volume production
  • H13/P20 hardened steel tooling — 300K–1M shot life
  • ASTM-certified alloys with XRF composition verification per heat lot
  • Air freight to LAX 2–3 days · Sea West Coast 18–22 days
  • EVFTA zero-duty exports to EU — no import tariff for European buyers
VNcontX Verified Partner Network die casting facility Ho Chi Minh City Vietnam
ISO 9001:2015 · Cpk ≥ 1.67 Post-cast CNC + CMM report every order · 98.4% OTD

How Die Casting Works — Process Overview

Die casting forces molten metal under high pressure into a reusable steel die cavity. The process produces near-net-shape parts with tight dimensional tolerances and smooth surface finish — reducing or eliminating secondary machining. A typical production cycle runs 30–90 seconds per shot depending on part complexity and alloy.

Step 01
Die Design & DFM
H13 or P20 steel die designed in SolidWorks. Mold-flow simulation verifies fill pattern, gate location, and cooling channels before first tool cut.
Step 02
Alloy Melting
Aluminum (A380, ADC12) or zinc (Zamak 3/5) ingots melted in electric furnace. Temperature controlled within ±5°C. XRF composition check per heat lot.
Step 03
High-Pressure Injection
Molten metal injected into die at 1,000–20,000 PSI (HPDC) or 7–30 PSI (LPDC). Fill time under 100 milliseconds for thin-wall aluminum parts.
Step 04
Cooling & Ejection
Part solidifies in die under controlled cooling. Ejector pins release the casting. Flash and overflow trimmed at the press.
Step 05
Post-Cast CNC & Finishing
Critical features machined to ±0.005mm on DMG Mori 5-axis. Parting lines removed. Surface finishing: anodize, powder coat, bead blast, or electroplate.
Step 06
CMM Inspection & Shipment
100% dimensional verification on Zeiss Contura CMM. FAI balloon report, XRF cert, and CoC included with every shipment. Air or sea freight from HCMC.
VNcontX difference: Steps 01–03 handled by our Verified Partner Network foundry. Steps 05–06 completed in our own facility — same roof, same quality team, same CMM equipment used on our CNC machining orders. Single purchase order covers everything.

Die Casting Industry Applications

VNcontX supplies die cast components across six core sectors. Each program includes DFM review, alloy recommendation, and industry-specific compliance documentation.

Automotive & EV

Engine brackets, transmission housings, EV battery enclosures, heat sinks. A380 and ADC12 alloys. High-volume HPDC with PPAP Level 3 documentation.

Consumer Electronics

Laptop frames, speaker housings, connector shells, LED heat sinks. Thin-wall zinc (Zamak 3) and aluminum castings with EMI shielding finishes.

Industrial Hardware

Valve bodies, pump housings, pneumatic fittings, gear cases. A380 and A383 for corrosion resistance. Salt spray tested to 240 hours per ASTM B117.

Telecommunications

5G antenna housings, base station enclosures, fiber optic junction boxes. Aluminum die casting with chromate conversion or powder coat for outdoor exposure.

Lighting & Electrical

LED street light housings, junction boxes, switchgear panels. Thermal conductivity requirements met through A360 or ADC12 with optimized fin geometry.

Renewable Energy

Solar inverter housings, wind turbine brackets, EV charging station enclosures. IP65/IP67 rated castings with gasket grooves machined post-cast.

Die Casting Capabilities

Castings produced through Verified Partner Network foundries in HCMC. Post-cast machining, EDM, finishing, and CMM inspection completed in our own facility.

High Pressure Die Casting

1,000–20,000 PSI injection. Fastest cycle times, tightest tolerances, complex geometries. Primary process for aluminum.

7–30 PSI Low Pressure Die Casting

7–30 PSI inert gas drives melt upward. Superior for structural frames, wheels, and uniform density parts.

Hot & Cold Chamber

Hot chamber for zinc/magnesium — fast cycle, submerged piston. Cold chamber for aluminum — handles high-melting alloys.

DFM & Mold-Flow Simulation

SolidWorks CAD, mold-flow analysis, draft angle check, wall thickness review. Included before first tool cut.

Aluminum Alloys

ADC12, A380, A383, A360 — industry-standard HPDC alloys. ADC12 dominates automotive; A380 for complex geometry; A360 for superior corrosion resistance.

JIS H5302 / ASTM B85

Zinc Alloys

Zamak 3, Zamak 5 — exceptional fluidity for thin-wall sections ≥0.5mm. Zamak 5 adds copper for higher strength in load-bearing parts.

ASTM B86 / EN 1774

Magnesium Alloys

AZ91D, AM60B — lightest structural casting metal. Best strength-to-weight for electronics housings, EV brackets, portable equipment.

ASTM B94 / ISO 16220
XRF verification: Every heat lot verified by XRF spectrometer. Material CoC and composition report available on request. RoHS compliant: Pb ≤1000 ppm, Cd ≤100 ppm per EU 2011/65/EU.

As-Cast

No secondary treatment. Natural die-cast texture Ra 1.6–3.2 µm. Most cost-effective for internal structural parts.

ISO 1302

Anodizing (Type II / III)

Type II decorative 5–25 µm or Type III hard anodize 25–75 µm. MIL-A-8625F. See our anodizing services page.

MIL-A-8625F

Powder Coating

Electrostatic dry powder, cured 180–200°C. Impact and UV resistant. Any RAL/Pantone. 60–100 µm thickness.

ASTM D3359 / ISO 2409

Bead Blasting

Glass beads at controlled velocity. Uniform matte finish, eliminates parting lines and gate marks.

SAE J444 / AMS 2431

Chromate Conversion

Chemical conversion on aluminum and zinc. Improves paint adhesion 3–5×. Salt-spray resistance >168 h. RoHS compliant.

MIL-DTL-5541F Class 1A/3

Electroplating

Nickel, chrome, or copper deposited 5–50 µm. Enhances hardness, solderability, and cosmetic appearance.

ASTM B456 / ISO 1456

Post-Casting CNC & Secondary Operations

VNcontX operates dedicated CNC machining centers configured specifically for post-die-casting operations. Parting lines removed, critical GD&T features machined to ±0.005mm, and complex geometries that cannot be cast produced in a single setup. Every part passes through our Zero-Defect Protocol before shipment.

5-Axis CNC Machining

Multi-sided complex features in one setup. DMG Mori 5-axis. Cpk/Ppk process control, full dimensional report on every run.

EDM Sinking & Wire EDM

Hardened insert features, deep slots, tight-corner geometries beyond conventional milling. Hardened H13 and D2 at full hardness — no distortion.

Flash Removal & Surface Finishing

Parting line integrity verified by Precision Field Inspectors. Bead blast, anodize, powder coat, electroplate — all in-house.

Post-casting CNC machining aluminum die casting component ±0.005mm VNcontX Vietnam
Parameter As-Cast (NADCA Gr.2) Post-CNC (VNcontX)
Linear tolerance / 25mm±0.10 mm±0.005 mm
Flatness / 100mm0.30 mm0.08 mm
True positionØ0.50 mmØ0.15 mm
Surface roughnessRa 1.6–3.2 µmRa 0.8 µm standard
CMM reportSampling100% every order

Ready to get pricing? Upload your drawing — DFM review and alloy recommendation included.

Request a Technical Quote →

LPDC vs HPDC Die Casting — When to Use Each

The choice of process determines what tolerances, wall thicknesses, and geometries are achievable without post-machining. Use this reference before submitting your drawing.

Criteria Low Pressure (LPDC) High Pressure (HPDC)
Injection Pressure5–30 PSI1,000–20,000 PSI
Injection SpeedSlowFast (10–100× LPDC)
Recommended Wall>0.18 in (4.5mm)0.04–0.16 in (1–4mm)
Dimensional AccuracyModerate Higher
Complex GeometriesLimited Better suited
Undercuts PossibleNo
Best forWheels, structural framesAutomotive, electronics housings

Die Casting Quality & Compliance

VNcontX enforces NADCA-aligned cosmetic and dimensional acceptance criteria across all die cast production. Full traceability from first article through serial production — no exceptions.

In-Process Inspection

  • CMM dimensional report — Zeiss Contura + Mitutoyo, every shipment
  • XRF alloy composition verification per heat lot
  • X-ray porosity testing — max Grade 2 per NADCA / ASTM E505
  • Brinell hardness testing at 5 locations per part
  • Salt spray 96 h or 240 h per representative lot — ASTM B117

Cosmetic Zones (NADCA)

Zone A — Primary cosmetic Zero flash. No porosity >Ø0.5mm. Ra ≤1.6µm.
Zone B — Semi-critical Flash ≤0.1mm. Porosity ≤1.0mm / 3 pits per dm².
Zone C — Non-cosmetic Functional inspection only.

Standards Referenced

ISO 9001:2015 NADCA Product Spec ASME Y14.5-2018 ASTM B85/B86/B94 ANSI/ASQ Z1.4 ASTM B117 EU RoHS 2011/65/EU

Full standard references: NADCA Engineering Standards · ASTM B85 Aluminum Die Casting Alloys

Die Casting Vietnam — Frequently Asked Questions

Do you own die casting machines or work through partners?
VNcontX works through a Verified Partner Network of foundries in Ho Chi Minh City for the casting operation itself. All post-cast operations — CNC machining, EDM, finishing, and CMM inspection — are performed in our own facility. This is standard practice for contract manufacturers of our size; what matters to buyers is quality traceability and single-point accountability, which we provide on every order.
What alloys are available and how are they verified?
Standard alloys: A380, ADC12, A383, A360 (aluminum), Zamak 3/5 (zinc), AZ91D (magnesium). All supplied to ASTM B85/B86/B94 or JIS H5302. XRF spectrometer composition check is performed per heat lot. Results are retained with the lot traveler and included in the Certificate of Conformance shipped with every order.
What tolerances can you hold on die cast parts?
As-cast: NADCA Grade 2 ±0.10mm per 25mm linear dimension. Post-cast CNC machining on critical features: ±0.005mm standard, ±0.003mm precision. Draft angles minimum 1° exterior walls, 2° internal cores. Any zero-draft feature requires post-cast CNC — flagged at DFM review before tool cut. See our CNC machining page for full tolerance capabilities.
Is there a minimum order quantity?
No hard MOQ. We run prototype quantities (1–50 pcs) through T1 sample stage and scale to production volumes on the same tooling. Tooling cost is a one-time investment; per-part cost drops significantly at higher volumes. Request a quote with your target annual volume and we’ll give you a tiered price breakdown.
How does the Section 301 tariff benefit apply?
Vietnam-origin die cast parts enter the US at 0% tariff under standard MFN rates. Chinese die castings currently face Section 301 duties of 25–145% depending on HTS code. On a $100,000 annual casting spend, that’s $25,000–$145,000 in avoidable import duties. We provide country-of-origin documentation with every shipment for US customs compliance.
What is the lead time for tooling and first samples?
T1 samples: 15–20 days from drawing approval including tooling build. FAI and CMM dimensional report shipped with T1 parts. Production tooling using H13/P20 hardened steel dies: 20–35 days. Expedited T1 available in some cases — discuss with our engineering team at duc.nguyen@vncontx.com.

Get a Die Casting Quote from Vietnam

Upload your drawing for a factory-direct quote. DFM review, alloy recommendation, and landed cost estimate included. Response within 24 hours.

Request a Technical Quote → Talk to an Engineer →

duc.nguyen@vncontx.com  ·   ·  Bình Chánh, HCMC, Vietnam

Related Services:   CNC Machining Vietnam  ·  Tooling & Die Making  ·  Anodizing Services Vietnam  ·  Injection Molding Vietnam  ·  Sheet Metal Fabrication