Rejin CNC is a vertically integrated precision manufacturer — DFM, rapid prototyping, 200+ CNC centers and in-house finishing under one roof. Trusted by audio brands and engineers in 60+ countries.
Founded in 2003 by veteran CNC engineer Zhang Yi, Rejin started with three lathes and one principle: survive by quality, thrive by integrity. Two decades later, we run 200+ CNC centers — but the engineering-first mindset hasn't changed.
Two decades of engineering growth — every step driven by customer demand for tighter tolerances.
Started with 3 CNC lathes, focusing on precision turned parts for local manufacturers.
Expanded to 50+ machines, earned ISO 9001 certification, began shipping overseas.
Added in-house anodizing, plating and assembly. Achieved IATF 16949 for automotive.
Fully digital DFM and in-process CMM. Serving audio, 3C, medical and global brands.
What sets us apart from the hundreds of machine shops quoting your parts.
±0.005 mm on critical features with in-process probing. CMM reports, FAI and material certificates ship with every batch.
A senior manufacturing engineer reviews every drawing before quoting — flagging tight tolerances, undercuts and cost drivers.
Detailed quote and DFM feedback within one business day. Prototype parts ship in 3–7 days. Rush 24-hour service available.
Machining, anodizing, plating and assembly in-house. One PO, one QC standard, one point of contact — no subcontractor handoffs.
DHL, FedEx or sea freight to 60+ countries. Foam-lined crates, FBA-ready packaging, full customs documentation on every shipment.
Standard NDA before quoting. Files stored on encrypted internal servers, never reused or shared. We treat your IP as carefully as your tolerances.
You work directly with people who run machines — not account managers who quote from spreadsheets.
Founder and CEO with over 22 years of hands-on experience in CNC machining and manufacturing. Started as a mechanical engineer before moving into sales and leadership, now overseeing R&D, production and volume manufacturing for 3C electronics and automotive core components.
Leads international business development, customer relationship management and new project coordination. With deep experience in the CNC machining industry, she guides customers from initial inquiry and technical quoting through prototyping, order tracking and final delivery.
200+ CNC machines under one roof — vertical mills, turning centers, 5-axis, anodizing line and CMM lab.
Vertical Machining Centers
CNC Production Lines
Drill & Tap Centers
Workshop Floor
5-Axis Machining
Multi-Function CellsNo outsourcing — inspection, deburring and testing all happen under our roof.
5-Axis Machine
Advanced 5-Axis
CMM Inspection
3D CMM Lab
Height Gauge Check
Optical Inspection
Vibratory Deburring
Salt Spray Test
Thread Quality CheckReal production parts — not catalog renders. Every geometry, material and finish below ships weekly to global clients.
Every batch ships with material certificates, FAI reports and RoHS/REACH documentation on request.
Get a free DFM review and detailed quote within 24 hours — no minimum order, no obligation.
Fill in the form below and get your quote within 24 hours.
Your message lands directly with our senior engineers — instantly acknowledged.
We study your requirements and propose a workable solution with material & process options.
Detailed quotation with specs, options and lead time — no hidden fees.
Approve the sample, then we mass-produce with full QC and on-time shipping.
WhatsApp: +86 13790500374
Email: info@rejincnc.com
Your CAD files are kept strictly confidential. Quotation within 24 hours.
