Built on Precision.
Driven by Quality.
Founded to serve the exacting demands of Semiconductor OEM, Trinity Wen Co., Ltd has grown into a trusted one-stop contract manufacturer delivering fabricated components to the tightest tolerances in the industry.
From the Ground Up
Trinity Wen Co., Ltd was established with a singular focus: to provide Semiconductor OEM customers with a reliable, high-precision fabrication partner capable of handling every stage of the manufacturing process under one roof.
Operating from our facility in Pathum Thani (currently under construction), we have built our reputation on consistent quality, on-time delivery, and the technical depth to handle complex, multi-process components that demand both engineering knowledge and manufacturing discipline.
Today, Trinity Wen serves customers across Semiconductor, Industrial Automation, Medical Device, Precision Optics, and Defence & Aerospace — all held to the same uncompromising standard.
Manufactured to the Highest Standard
Every component that leaves our facility passes through a rigorous quality control process — from incoming material inspection to final dimensional verification.
Process Discipline
Our manufacturing processes are built on documented procedures, defined inspection points, and consistent execution — ensuring repeatable quality across every production run.
Dimensional Inspection
CMM and precision gauging at every critical stage. We verify tolerances down to ±0.01mm and provide full dimensional reports on request.
Material Traceability
Full material certification and traceability from mill certificate to finished part — essential for Semiconductor and Medical Device supply chains.
Surface & Coating QC
Powder coating adhesion, thickness, and finish are verified per batch. Treatment processes are documented and repeatable.
In-Process Control
Statistical process control and first-article inspection ensure that every production run meets specification from the first part to the last.
On-Time Delivery
We track on-time delivery as a core KPI. Our scheduling and capacity planning systems are designed to meet committed lead times, every time.
One-Stop Fabrication
Laser Cutting
CO₂ & Fiber · ±0.05mm
Bending
CNC Press Brake · ±0.1°
Machining
CNC Milling & Turning · ±0.01mm
Welding
TIG / MIG / Spot
Treatment
Anodising · Passivation · Plating
Powder Coating
Full colour range · TGIC & Polyester
Assembly
Sub-assembly & Final Assembly
Based in Pathum Thani, Thailand
508/23 Soi Phahonyothin 58, Yaek 8, Sai Mai, Bangkok 10220, Thailand (Temporary site)
เลขที่ 508/23 ซอยพหลโยธิน 58 แยก 8 แขวงสายไหม เขตสายไหม กรุงเทพมหานคร 10220 (Temporary site)
Registration No. 0105569144772
Ready to Work Together?
Send us your drawings and specifications. Our engineering team will review and respond with a detailed quotation.