Rejin CNC delivers precision CNC milling, turning, 5-axis machining, surface finishing, prototyping and volume manufacturing. As an ISO9001 & IATF16949 certified manufacturer, we supply OEM custom metal enclosures and structural parts with consistent tight tolerances, reliable lead times and 24-hour engineering support for global B2B buyers.
One supplier, fewer handoffs. CNC turning, milling, 5-axis machining and surface treatments managed end-to-end, delivering consistent quality and reliable on-time delivery.
Multi-spindle turning for shafts, bushings, connectors and threaded parts. We maintain strict runout and concentricity from first article samples to mass OEM orders, ensuring stable dimensional accuracy batch after batch.
3-axis & 4-axis milling for structural and functional components. Materials include aluminum, stainless steel, copper, brass and engineering plastics. In-process inspection guarantees critical features stay within tight tolerances across mass runs.
Single-setup machining for complex contours, compound angles and undercuts. Eliminates repeated repositioning errors, cuts cycle time for intricate components requiring multiple fixturing steps.
In-house surface treatments including anodizing, electroplating, sandblasting, polishing, powder coating and laser marking. Processes run right after machining for stable finish quality and predictable lead times, no third-party subcontracting.
Incoming material, in-process dimensions, surface finish and final shipment — each checked before the part moves forward.
Explore precision CNC machined components & custom metal enclosures from Rejin CNC for automotive, professional audio, drone, AI liquid cooling, robotics and industrial electronics.
Send drawings, quantity, material, tolerance and finish requirements.
We review manufacturability, cost drivers and potential production risks.
Produce samples for dimensional, functional and appearance confirmation.
Controlled machining, finishing and in-process inspection.
Verify dimensions, appearance, documentation and packing requirements.
Coordinate export packing, shipment documents and delivery support.
Machining, surface treatment, inspection and process control — shown as they actually run, not staged for a brochure.
Provide complete requirements to improve quotation accuracy and shorten the engineering review cycle.
Every successful product starts with a manufacturability check. Upload your CAD file to instantly receive automated DFM analysis on key factors like geometry, tolerances, and wall thickness. For critical projects, our engineers perform a detailed manual review within one business day, providing clear, actionable recommendations on design adjustments, materials, and processes to ensure quality and avoid delays.
We combine in-house manufacturing with a vetted partner network under strict quality standards. Unlike intermediaries, we provide integrated engineering support, from prototyping to full-scale production and packaging. With dedicated project management and a focus on industries like automotive, medical, and electronics, we ensure reliability, consistency, and seamless scale-up for every order.
Lead times vary based on part complexity, quantity, and process. Rapid prototypes (CNC/3D printing) can ship in 2–5 days. Low-volume production typically take 2–4 weeks. Submit your design details for an instant quote with a precise timeline.
We provide instant online quotes for standard manufacturing services. Simply upload your 2D or 3D files and select your preferred process, material, finish, and quantity. If your project is more complex, a dedicated engineer will reach out within one business day to review your requirements and prepare a customized proposal.
Yes, we accommodate engineering change requests wherever possible. Minor adjustments during the prototyping stage are generally straightforward, while changes during mass production may affect cost and lead time. Our team will provide a clear impact assessment and assist you in implementing changes with minimal disruption.
We support common 2D and 3D formats, including STEP, STL, IGES, X_T, DWG, and PDF. For best results, please upload complete, dimensioned drawings and specify critical tolerances, surface finishes, and material preferences in your notes.
For prototyping and low-volume orders, we offer no MOQ so you can order as few as one part. For injection molding and large-scale production, MOQ depends on the tooling and process—our team will provide a detailed breakdown during quoting.
We are ISO 9001:2015 certified and comply with industry-specific standards such as IATF 16949 (automotive) etc. We can also provide material certifications, FAIRs, and third-party inspection reports upon request.
Our team will review your drawing, manufacturing requirements and expected volume, then provide quotation feedback.
