01 — Overview Why VNcontX

Contract Manufacturing Vietnam
Built for US, Australian & EU Buyers

VNcontX is a precision contract manufacturing facility in Bình Chánh District, Ho Chi Minh City, Vietnam — operating since 2016 under ISO 9001:2015. CNC machining, injection molding, sheet metal fabrication, and tooling — all produced in-house at the same facility. No brokering. No undisclosed subcontractors. You work directly with the factory that machines your parts.

±0.005mm Standard Tolerance ±0.003mm on precision features. Verified by Zeiss Contura CMM on every first article.

98.4% On-Time Delivery Tracked across all orders. Lead times committed in writing at quote — not revised post-order.

Cpk ≥1.67 Process Capability Cpk/Ppk report on request. Statistical process control on all volume runs.

100% FAI First Article Inspection CMM dimensional report on every new order and every new revision. No exceptions.

When a procurement manager in the US or Australia sources precision parts from Vietnam, two questions dominate: will the dimensions be right, and will it arrive on time?

±0.005mm is the tolerance we hold on aluminum, stainless steel, and titanium — not a marketing figure. 98.4% OTD is a tracked number. DMG Mori 5-axis and Mazak QT run production. Zeiss Contura + Mitutoyo CMM run inspection. The data comes with the parts.

Technical contact: Duc Nguyen, Engineering Director — duc.nguyen@vncontx.com ·
Facility: Bình Chánh District, Ho Chi Minh City, Vietnam · ISO 9001:2015 · Est. 2016

02 — Competitive Comparison

VNcontX vs. Typical Vietnam Broker vs. China CNC Shop

Five dimensions that determine actual landed cost and delivery risk — not marketing claims.

	Vietnam Broker / China Shop	VNcontX — Direct Factory, Bình Chánh HCMC
Tolerance	Unverified ±0.02–0.05mm quoted; actual delivery often wider. No CMM report. No Cpk data.	CMM Verified ±0.005mm standard / ±0.003mm precision. Zeiss Contura + Mitutoyo CMM report on every first article. Cpk ≥ 1.67 — process capability report on request.
US Tariff	25–145% (China) Section 301 tariffs applied at US customs on top of invoice. Landed cost far exceeds quoted price.	0% Section 301 Vietnam is not subject to Section 301 tariffs. What you quote is what clears US customs. EVFTA: duty-free access to EU market on qualifying HS codes.
Quality Docs	Inspection Gap CoC on request — often generic. No dimensional data. No process records.	Standard Package Every order ships with: CMM dimensional report, material CoC, FAI sign-off, surface finish verification. Medical orders: injection process parameters and cavity mapping records included.
Lead Time	Unguaranteed Lead times quoted verbally, often revised post-order. No written commitment.	Hard-Locked at Quote CNC standard: 7–12 days. Expedited: 5–7 days. Injection T1: 15–25 days. Written. Not revised.
DFM Review	Absent Parts run as-drawn. Manufacturability issues surface at inspection or delivery.	Pre-Production Standard DFM analysis before the first chip falls. Tolerance conflicts, surface finish callouts, material substitution flagged in writing before production starts.

03 — Tariff & Trade Advantage

Tariff Structure: Vietnam vs. China (US Import)

Section 301 tariffs on Chinese goods: 25% standard, up to 145% on strategic categories. Vietnam is not on the Section 301 list. For US-bound precision parts, this is typically a 30–40% landed cost advantage versus China-sourced equivalents.

🇻🇳 Vietnam — VNcontX 0%

Section 301 tariff rate on Vietnam-manufactured goods entering the US. Parts ship from Cat Lai Port, HCMC. Air freight to LAX: 2–3 days. Sea to US West Coast: 18–22 days.

🇨🇳 China — Typical Shop 25–145%

Section 301 tariff range on Chinese precision parts entering the US. Applied at customs on top of invoice value. Adds 30–40% to landed cost vs Vietnam on comparable parts.

🇪🇺 EU — EVFTA 0%

EU-Vietnam Free Trade Agreement eliminates import duties on most manufactured goods from Vietnam to EU member states. Effective for qualifying HS codes on CNC parts, molded components, and sheet metal assemblies.

04 — Technical Proof Points

Six Specific Reasons Procurement Teams Choose VNcontX

Verifiable technical facts — not marketing claims — that engineering and procurement managers ask about when evaluating Vietnam contract manufacturing.

01 — Machine Capability

DMG Mori 5-Axis + Mazak QT — Not Commodity Equipment

Production runs on DMG Mori 5-axis machining centers and Mazak QT turning centers — Tier-1 CNC platforms used by aerospace and medical suppliers globally. Parts with compound-angle features, tight-tolerance bores, and complex surface profiles are run in-house, not handed to a subcontractor with a 3-axis knee mill.

02 — Metrology

Zeiss Contura + Mitutoyo CMM — Data Ships With the Parts

Dimensional inspection runs on Zeiss Contura and Mitutoyo CMM units, calibrated and traceable. The CMM report is a standard deliverable on every first article — not an add-on. True position, flatness, cylindricity, profile: reported with actuals, not pass/fail stamps only.

03 — Single-Site

One Factory. Full Visibility. No Subcontracting Risk.

CNC machining, sheet metal fabrication, and injection molding — all at the Bình Chánh facility. The factory that quotes your order is the factory that machines it. No broker layer, no undisclosed subcontractor, no quality gap between quote and production.

04 — Materials

Full Material Range — Aerospace to Medical Grade

Standard stock: 6061-T6, 7075-T6, 303/304/316/316L/17-4PH stainless, 4140/4340 alloy steel, Ti-6Al-4V, POM, PEEK, PC. Injection resins: ABS, PP, PA66, POM, PC, TPU. Material CoC from supplier provided with every order — traceable to heat/lot on request.

05 — Finishing

MIL-SPEC Finishing — Anodize to Electropolish

Capabilities include Anodize Type II & III (MIL-A-8625F), Electroless Nickel (ASTM B733), Passivation (ASTM A967 / AMS 2700), Black Oxide (MIL-DTL-13924), hard chrome, chem film, laser marking, powder coat, bead blast, and electropolish. Surface roughness Ra 0.4μm achievable on precision features.

06 — Logistics

HCMC Port + Airport Under 25km. Air to LAX in 2–3 Days.

Cat Lai Port (sea) and Tan Son Nhat International Airport (air) are within 25km of the Bình Chánh facility. Air freight to Los Angeles: 2–3 days. Sea freight to US West Coast: 18–22 days. Export documentation prepared in-house and shipped with every order.

05 — Quality System

Quality System — Standard on Every Order, No Extra Charge

Every item below is included as standard. No surcharge. No chasing for paperwork after the fact.

ISO 9001:2015 Certified QMS covers all production processes: CNC, sheet metal, injection molding, and finishing.

100% First Article Inspection (FAI) Every new order, every new revision. CMM report delivered before shipment approval.

Cpk ≥ 1.67 Process Capability Tracked per feature on volume runs. Cpk and Ppk report available on request.

Surface Finish Ra 0.8μm Std / Ra 0.4μm Fine Verified by profilometer. Callout-specific compliance reported in inspection package.

Material Certificate of Conformance (CoC) Supplier mill cert or resin lot certificate included. Heat/lot traceable on request.

GD&T Enforcement — ASME Y14.5 True position, flatness, cylindricity, perpendicularity — all measured and reported with actuals.

06 — Production Process

10-Step Production Process

From order confirmation to export documentation — every step defined, tracked, and documented. This is how quality does not slip between stages.

01 Order Confirmed Drawing review, tolerance, lead time and material confirmed in writing.

02 Drawing Review Engineering verifies 2D/3D files against spec. Revision locked before production.

03 DFM & Quotation DFM analysis — tolerance stack-ups, undercuts, material subs flagged in writing.

04 Material Procurement Sourced from verified suppliers. CoC matched to order at material receipt.

05 FAI / First Article CMM report on first-off parts. Customer approval gate before mass production.

06 Mass Production Full production run. SPC monitoring active. Cpk tracked at critical features.

07 In-Process Inspection Mid-run dimensional checks at defined intervals. Non-conforming parts pulled immediately.

08 Final Inspection 100% outgoing QC against drawing. CMM spot-check on production lot.

09 Packing & Labeling Packed per customer spec. Labels: part number, revision, qty, lot traceable to CoC.

10 Shipment & Export Docs Commercial invoice, packing list, CoC, CMM report shipped. Air or sea from Cat Lai Port HCMC.

07 — FAQ

Frequently Asked Questions

Questions procurement managers and engineering teams ask before placing their first order with a Vietnam manufacturer.

Is Vietnam subject to US Section 301 tariffs on manufactured goods?

No. Section 301 tariffs are levied specifically on goods manufactured in China. Vietnam is not included in Section 301 lists. Parts manufactured at VNcontX in Ho Chi Minh City enter the US at 0% Section 301 tariff rate. Standard US MFN import duties apply depending on HS code — typically 0–5% for precision machined parts. This represents a 25–145% cost advantage versus China-sourced equivalents on the tariff component alone.

What certifications does VNcontX hold? Is ISO 13485 available for medical parts?

VNcontX holds ISO 9001:2015 certification covering all production processes. We do not hold ISO 13485 certification. For medical device components that require ISO 13485 documentation from the manufacturer, we confirm this limitation before any order is placed — we do not accept orders where we cannot meet the stated regulatory requirement. For Class I device components and non-regulated medical plastics, our ISO 9001:2015 QMS, 100% FAI, and full documentation package is typically sufficient. See our medical injection molding page for detail.

What is the minimum order quantity (MOQ) for CNC machining and injection molding?

For CNC machining, there is no formal MOQ — single prototype parts are accepted. For injection molding, tooling must be quoted and built first; production runs typically start from 500–1,000 pieces. Prototype (soft) tooling is available for low-volume validation runs of 50–500 pieces. For sheet metal fabrication, single-piece prototypes are accepted with a 5–10 day lead time.

What file formats do you accept for quoting, and how long does a quote take?

We accept STEP, IGES, SolidWorks (.sldprt), DXF, DWG, and PDF technical drawings. STEP + dimensioned PDF is the preferred combination. Quotes with DFM review are returned within 24 hours for standard CNC and sheet metal parts. Injection mold tooling quotes take 2–3 business days. Submit files at vncontx.com/request or email directly to duc.nguyen@vncontx.com.

How do you handle tolerances tighter than ±0.005mm on critical features?

Features requiring ±0.003mm or tighter are flagged during DFM review and confirmed for feasibility before order acceptance. Precision features are machined on DMG Mori 5-axis centers with in-process gauging, then verified on Zeiss Contura CMM. We do not accept tolerances we cannot reliably hold — if a feature is at the edge of capability for the specified material, we say so in writing and propose an alternative approach (ground finish, EDM, or tolerance relaxation on non-functional surfaces).

Ready to Source Precision Parts from Vietnam?

Send your STEP or PDF drawing. Receive a DFM-reviewed quote within 24 hours. ±0.005mm tolerance. CMM report included. 0% Section 301 tariff on US-bound shipments.

Request a Technical Quote → Talk to an Engineer →

Or contact directly: duc.nguyen@vncontx.com ·

Contract Manufacturing VietnamBuilt for US, Australian & EU Buyers