Tan Phat Manufacturing Company Limited
Automated Die Casting + Dual CNC Lathe
Dewin Dolphin Audit verified: automated die casting machine with locked shot parameters + two CNC lathes for post-cast machining under one roof. Single-source die cast-to-finished-component capability, verified on-site by our ground team.
Factory Photos — Taken On-Site by Dewin's Audit Team
All photos captured by our on-ground team during the 50-point Dolphin Audit visit. No stock photography, no marketing renders.
Automated Die Casting Machine
CNC Lathe Machine #1
CNC Lathe Machine #2
Workshop Overview
Production Area
What Makes Automated Die Casting Different?
Automated vs manual die casting is one of the most impactful quality differentiators Dewin evaluates during factory audits — and one that buyers sourcing through unverified channels rarely know to ask about.
| Quality Factor | Automated Machine (Tan Phat) | Manual Die Casting |
|---|---|---|
| Shot injection speed | Electronically locked — same every cycle | Set by operator — varies between shifts |
| Injection pressure | Programmed parameter — not adjustable by operator | Operator-controlled — fatigue causes variability |
| Cooling hold time | Fixed per part program | Operator judgment — often shortened to hit output |
| Die temperature | Automated spray/coolant cycle per shot | Manual water spray — inconsistent die temp |
| Cycle time | Fixed — supports accurate lead time commitments | Variable — depends on operator pace and break timing |
| Defect traceability | Shot parameter logs per production run | No per-shot data — defect causes harder to isolate |
🔍 Dolphin Audit — Equipment Verification (Pillar 2)
During the Dolphin Audit Equipment & Capacity pillar review, Dewin's on-ground team physically confirmed at Tan Phat:
- ✅Automated Die Casting Machine — confirmed operational with programmable shot control. Not self-reported — physically observed during production floor walkthrough.
- ✅CNC Lathe ×2 — both units physically confirmed on-site. Two lathes confirm capacity for parallel post-cast machining operations without bottleneck risk.
- ✅Production Area — organized with defined production zones. Equipment placement and material flow observed and recorded.
Why Dual CNC Lathe Matters: Single-Source Die Cast to Finish
Single-Source Accountability
Die casting quality AND CNC machining quality owned by one factory. No inter-supplier disputes when a bore tolerance or thread form is out of spec.
No Inter-Vendor Handling
Parts move directly from die casting cell to CNC lathe — no external transit, no mixed-lot risk, no chain-of-custody gaps between vendors.
Competitive Total Unit Cost
Machining overhead absorbed in the factory — no second supplier margin. More competitive total-unit-cost vs split-source die cast + machining programs.
50-Point Dolphin Audit — Tan Phat Manufacturing
Key findings across all five Dolphin Audit pillars at Tan Phat's facility:
| Dolphin Audit Pillar | Key Findings at Tan Phat | Buyer Relevance |
|---|---|---|
| Pillar 1: Facility & Safety | Organized production floor; defined production zones; housekeeping reflects operational management discipline. | Facility condition is a proxy for management quality — disorganized factories typically also have disorganized quality systems. |
| Pillar 2: Equipment & Capacity | Automated die casting machine — confirmed operational. CNC Lathe ×2 — confirmed on-site. Both key machines physically verified. | Automation claim verified in person — not self-reported. Two lathes confirm post-cast machining capacity for parallel operations. |
| Pillar 3: Quality Systems | Visible QC station in production area. Conforming and non-conforming product separation observed during floor visit. | Defect segregation practice is a critical quality signal — factories that mix NG and conforming parts create traceability nightmares for international buyers. |
| Pillar 4: Workforce & Management | Management present and engaged during audit. Factory demonstrates capacity for ongoing program management with international buyers. | Management engagement with external audits indicates openness to buyer oversight — important for long-term program quality management. |
| Pillar 5: Export Compliance | Tan Phat operates as a genuine Vietnam manufacturer — eligible for VCCI Form B Certificate of Origin for US buyers ($0 Section 301) and FTA COO documentation for EU/CPTPP markets. | COO eligibility verification protects buyers from CBP anti-circumvention enforcement — critical for aluminum die cast parts where China transshipment risk is elevated. |
QCLDM Scoring Reference
FTA Advantage — Vietnam Die Cast Parts in Global Markets
Vietnam's 16+ Free Trade Agreements make it one of the best-positioned manufacturing hubs for global buyers — die cast aluminum parts from Vietnam benefit from preferential tariff access across major markets.
Japan, Canada, Australia, NZ, Malaysia, Singapore, Mexico, Peru, Brunei, Chile
Preferential rates on aluminum articles — HTS Ch.76 equivalent tariffs reduced or eliminated for CPTPP Certificate of Origin holders.
European Union (27 member states)
EU MFN rates of 3–5.7% on aluminum articles reduced toward 0% under EVFTA staging schedule. EUR.1 or REX declaration required.
ASEAN, China, Japan, South Korea, Australia, New Zealand
Regional value chain preferential rates. Strong for intra-ASEAN supply chains and Japan/South Korea market entry.
United Kingdom
Preferential tariff access to UK market. Standard UK MFN rates on aluminum articles reduced under UKVFTA schedule.
Dewin vs Alternatives — Vietnam Die Casting Sourcing
| Factor | Dewin (Tan Phat) | Alibaba / Direct | Trade Fair |
|---|---|---|---|
| Factory verified on-site | ✅ 50-point Dolphin Audit | ❌ Self-reported claims | ❌ Booth presentation only |
| Automation claim verified | ✅ Physically confirmed in production | ❌ Photos only — unverified | ❌ Not assessed |
| COO documentation managed | ✅ VCCI Form B, FTA CO | ❌ Buyer manages independently | ❌ Not included |
| Pre-shipment inspection | ✅ AQL ISO 2859-1 Level II | ❌ Not included | ❌ Not included |
| Anti-circumvention protection | ✅ Genuine manufacturing verified | ❌ No CBP-defensible verification | ❌ Not verified |
| English-speaking contact | ✅ 24h response | ⚠️ Variable quality | ⚠️ One-time contact |
How Dewin Sources Die Cast Parts — 6-Step Process
RFQ & Technical Review
Submit drawing + requirements. Dewin reviews DFM for die casting suitability, alloy spec, tolerance callouts, and post-machining requirements.
Factory Match & Quote
Match to Dolphin-audited factory (Tan Phat or equivalent) with verified automation and CNC lathe capability. Quote within 3–5 business days.
Tooling & First Article
Die tooling with buyer-owned tooling agreement. FAI report with dimensional ballooning before production approval.
Production Oversight
On-ground milestone monitoring. Photo/video updates at critical stages. Shot parameter records reviewed for key programs.
Pre-Shipment Inspection
AQL sampling per ISO 2859-1 Level II before loading. Dimensional check, visual inspection, COO document verification.
COO & Export Docs
VCCI Form B + full export documentation package. FTA CO for EU/CPTPP markets on request.
What International Buyers Say About Dewin
"What I appreciated most was the on-site audit. Dewin didn't just send us a supplier list — they physically verified the machines were there and operational. That's the difference."
Greg L. Wilhite
DOMS
"We were paying 25% Section 301 on all our die cast housings. Dewin qualified a Vietnam factory in 6 weeks, and we eliminated the tariff entirely. The parts passed FAI first time."
Francisco García Quintana
LAROME
"The Dolphin Audit report gave us confidence before we wired any tooling deposit. We knew exactly what we were getting — verified equipment, verified quality systems."
Vishnu Shanker
Texas Technology
Frequently Asked Questions
What does the Dolphin Audit verify at a Vietnam die casting factory? ▼
What FTA tariff benefits apply to die cast aluminum parts from Vietnam? ▼
Why does automated die casting produce better quality than manual operations? ▼
What parts is Tan Phat best suited to produce? ▼
Source Die Cast Parts from Audited Vietnam Factories
Browse Dewin's 179+ audited Vietnam factory network — real photos, real audit results, FTA-eligible COO documentation for US, EU, CPTPP, and UK markets.