About OPTCJ Machining
A precision-driven manufacturing partner built on expertise, technology and an unwavering commitment to quality.
Precision CNC Machining in Dongguan
Based in Chang'an Town — the heart of China's Pearl River Delta manufacturing region — OPTCJ Machining is a CNC precision workshop producing machined aluminum and other metal components for overseas brands that need an outsourced machining partner.
Our in-house capability covers 5-axis and 4-axis machining centers, Swiss-style and turn-mill turning, plus anodizing and secondary finishing. Every job is dimensionally checked in-house on our optical measuring systems before it ships.
What sets us apart is not just our machines — it is our people. Our engineering team brings decades of combined machining experience, and every project is assigned a dedicated project manager who stays with you from quote to delivery.
Our Scale & Capacity
- 5-axis & 4-axis CNC machining centers
- Swiss-type & turn-mill precision turning
- Aluminum 6061-T6 & other metals, prototype to production
- Anodizing & secondary finishing in-house
- Dimensional inspection on optical measuring systems
What You Get Working With Us
A straight-talking partner for outsourced precision machining.
One accountable contact on every order, from your first DFM review to final inspection and delivery.
In-house machining, finishing and inspection under one roof — no layers of subcontracting in the middle.
Clear, honest answers on what we can and cannot hold. We do not claim capability we do not have.
Inside Our Factory
A look at our production environment, equipment and workspace.
Ready to Machine Your Part?
Send your drawings and requirements. Quote, lead time and DFM feedback by email.