23+
Years of Experience
200+
CNC Machines
±0.01mm
Machining Tolerance
24h
Quote Response
What We Do
Machining Services
Six core in-house capabilities covering the full precision-manufacturing chain.
CNC Turning
High-precision lathe parts: shafts, nuts, studs, connectors and custom fasteners.
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CNC Milling
3/4/5-axis milling of aluminum, steel, titanium, brass and engineering plastics.
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5-Axis CNC Machining
Complex free-form parts for aerospace, medical and new-energy applications.
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Sheet Metal Fabrication
Laser cutting, bending, welding and forming for enclosures and chassis.
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Metal Stamping
Progressive and compound stamping of high-volume precision parts.
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Surface Treatments
Anodizing, powder coating, electroplating, painting, laser engraving and more.
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Featured Work
Featured Products
Representative CNC-machined parts delivered for real OEM projects.
Knurled Audio Knob (6063 Aluminum)
Anodized Aluminum Audio Panel
Laser-Engraved Earphone Case
Aluminum Mixer Enclosure
Robot Joint Structural Parts
Why Ruijin
Core Advantages
One-Stop OEM / ODM
CNC turning, milling, 5-axis, sheet metal and finishing in-house — one partner for the whole part.
Free DFM & Fast Prototyping
Free DFM review on your drawings, rapid prototyping and low-volume trial before mass production.
Certified Quality System
IATF16949, ISO 9001 and ISO 13485 with CMM and full inspection reports.
±0.01mm Precision, 24h Quote
Stable tolerance control on bulk orders and a quote back within 24 hours.
Trusted OEM Partner
Brands We Manufacture For
Precision parts supplied to leading automotive, consumer electronics, audio and robotics brands.
How To Order
Simple 6-Step Process
From your CAD file to your door — transparent and fast.
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01
Upload CAD File
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02
Quote & DFM Analysis
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03
Order Confirmation
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04
Start Production
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05
Quality Inspection
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06
Fast Shipping
Certified & Reliable
Quality & Certifications
IATF 16949
Automotive Quality System
ISO 9001
Quality Management
ISO 13485
Medical Device Quality
±0.01mm
Machining Tolerance
Get in Touch
Request a Quote
Tell us about your part and we'll reply with a DFM review within 24 hours.