FACTORY DIRECT PRECISION CNC MANUFACTURING

China CNC Machining Manufacturer

Advanced 5-axis CNC turning & milling precision machining with full metal surface treatment.

IATF16949 & ISO9001 certified factory, producing ±0.01mm ultra-precision custom metal parts for automotive, E-MTB, robotics, medical and audio equipment.

Free Professional DFM Drawing Review
Prototype to Mass OEM Production
Global Door-to-Door Shipping
Full In-house QC Inspection
5-Axis Precision CNC Machining

Get Free DFM & Quote Chat via WhatsApp

23+ Years Experience

Mature Bulk OEM Production

200+ CNC Machines

Urgent Batch Orders Supported

±0.01mm Tolerance

Auto & Industrial Precision

24H Quote Response

Save Cross-Timezone Delay

Full Mazak Workshop

In-house Machining & Finish

WHY US ADVANTAGES

Core Strengths For Your OEM Projects

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One-Stop Factory

Machining, anodizing, sandblasting and packaging all finished in our own workshop, no third-party outsourcing.

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Free DFM Analysis

Engineers optimize your drawings before production to reduce cost and avoid manufacturing defects.

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Strict Quality Control

CMM, calipers and full functional testing ensure every part meets micron-level tolerance requirements.

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Fast Lead Time

3-7 days for prototypes, 7-15 days for mass orders, stable production schedule without delay.

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24h Technical Support

Professional engineering team online all day to solve drawing and production problems.

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Global Shipping

Support DHL, FedEx, sea freight and air freight to all countries with complete export documents.

RAW MATERIALS

CNC Machining Raw Materials

We machine aluminum, stainless steel, copper, titanium, carbon steel and engineering plastics to produce high-precision custom CNC machined components with strict tolerance control.

Aluminum Alloy

Lightweight CNC & sheet metal material for automotive, e-bike and audio housings.

Stainless Steel

Corrosion-resistant material for enclosures, frames and structural parts.

Copper & Brass

High-conductivity material for electronic and precision hardware parts.

Titanium Alloy

High-strength, lightweight material for medical and aerospace components.

Carbon Steel

Rigid sheet metal material for equipment frames and support structures.

POM / ABS Plastic

Engineering plastic for non-metal CNC custom precision parts.

FACTORY VIDEO

See Rejin CNC Production in Motion

Professional CNC Machining Factory Strength

Our factory is equipped with full Mazak 3/5-axis CNC equipment, independent anodizing surface treatment workshop and standardized QC lab.

From prototype trial to mass production, every production link is controlled in-house, shorten lead time and stabilize product quality for global OEM buyers.

We support customized drawings, DFM technical review and 24-hour online engineering support for all precision metal machining projects.

5-Axis CNC Machining Surface Anodizing Strict QC Inspection Fast OEM Delivery

QUALITY CONTROL SYSTEM

Precision Inspection In Every Production Stage

01 CMM 3D Precision Inspection

Verify critical dimensions, hole positions and complex GD&T geometric tolerances via professional CMM equipment. Full 3D scanning avoids assembly defects for complex machined components.

02 In-process Dimensional Verification

Continuous in-process dimensional testing with precision measuring tools. Early defect identification minimizes scrap risk during mass OEM production.

03 Surface Finish & Visual Inspection

Strict inspection on surface finish, scratches, burrs and coating defects. Meet strict appearance requirements of aluminum alloy housings.

04 First Article Inspection (FAI)

Standardized first article inspection before mass production. Deliver formal FAI reports to stabilize dimensional consistency for bulk orders.

05 Raw Material Traceability Management

Complete material certification & batch records. All machined parts can trace back to raw material source for IATF16949 automotive compliance.

06 Final Functional Performance Checks

Comprehensive final functional inspections to identify hidden defects that dimension testing cannot catch, guarantee stable part performance.

FACTORY STRENGTH DISPLAY

Our Workshop Gallery

Equipped with full-set precision CNC machining equipment, independent quality inspection laboratory and surface treatment production lines, we realize one-stop customized manufacturing for metal precision parts.

Vertical CNC machining center for custom precision metal parts production

Vertical Machining Center

High-efficiency vertical machining centers for prototype trial, medium and large batch metal part production

Drill & Mill Machining Center

Integrated drilling, tapping and milling to reduce production turnaround time for metal fittings

Drill and mill CNC machining center for custom precision machined metal parts

Multi-task Machining Workshop

Combined drilling & milling machining line to support both small batches and mass production orders

CNC Production Workshop

Well-organized production zone supporting prototype sampling to large-volume mass OEM orders

CNC machining equipment for manufacturing high tolerance custom machined parts

Standard CNC Production Line

Systematic production layout improves machining efficiency and ensures reliable on-time delivery

Advanced CNC machine tools for custom precision aluminum alloy component processing

CNC Machining Equipment

Complete CNC machine fleet enabling stable continuous manufacturing for bulk OEM requirements

5-Axis CNC Machining Center

5-axis equipment to process complex multi-surface components in one single clamping setup

5-axis CNC machine for producing intricate high-precision CNC machined aluminum housings

Advanced 5-Axis Machine Tool

One-setup multi-face machining to maintain high accuracy for complex structural aluminum housings

3D CMM measuring equipment used for full dimension verification of CNC machined products

3D CMM Measuring Laboratory

Professional QC laboratory performing strict testing following IATF16949 automotive quality specifications

CMM coordinate measuring machine for high-precision dimensional inspection of CNC machined parts

CMM Inspection Equipment

High-precision CMM equipment to verify dimensions and guarantee consistent product tolerance

Height gauge precision inspection for tight tolerance CNC machined aluminum components

Precision Height Gauge Testing

Manual dimensional spot check to control precision for finished custom machined parts

Optical inspection equipment for visual quality checking of precision CNC machined workpieces

Optical Visual Inspection Station

Optical detector for appearance inspection and secondary dimension verification of machined workpieces

Professional CNC machining factory equipped with 5-axis CNC machining centers, CNC turning lathes, CMM inspection lab and in-house aluminum anodizing production lines. We provide one-stop custom manufacturing of precision metal parts, including CNC milling, CNC turning, surface treatment, quality testing and export packaging. Compliant with IATF16949 standards, supporting prototype and mass OEM orders for automotive, UAV drone, audio equipment, 3C electronics and robotics industries.

GET YOUR FREE QUOTE

Submit Your Drawing & Get Best Quote

How To Get A Fast Quote

1. Fill in your basic project information below

2. Upload your 2D/3D drawing files (STEP, IGES, PDF, DWG)

3. Our engineer will send DFM analysis & quotation within 12 hours

📱 WhatsApp: +86 13790500374 ✉️ Email: info@rejincnc.com

Frequently Asked CNC Machining Questions

1. What is the ordering process for custom metal parts? +

1、Send us your 2D/3D CAD drawings & detailed requirements 2、We conduct DFM review and send you an official quotation within 24 hours 3、Confirm order details and arrange payment 4、Arrange prototyping & mass production step by step 5、Complete full quality inspection and arrange delivery

2. What custom machining services can you provide? +

We integrate full-set precision manufacturing services: 3/5-axis CNC milling, CNC turning, sheet metal fabrication, professional surface finishing and DFM design consulting, covering prototype development and large-volume OEM batch production.

3. What materials are applicable for CNC precision machining? +

We process various metals: aluminum alloys, stainless steel, carbon steel, brass, copper and titanium alloy. Different engineering plastics are also available according to your actual usage demands.

4. What payment terms do you accept for OEM orders? +

We support flexible international payment methods including T/T bank transfer, Western Union and PayPal. For long-term bulk cooperation clients, negotiable payment terms are available upon discussion.

5. Can I track my order production status online? +

Absolutely. Our sales team will regularly update production progress including raw material preparation, machining, surface treatment and final inspection. You can inquire about order details anytime via email or WhatsApp throughout the whole production cycle.

6. What machining tolerance can your CNC manufacturing reach? +

Our stable machining tolerance ranges from ±0.005 mm to ±0.01 mm for precision metal components. Strict dimensional inspection is conducted for all finished parts to meet tight precision requirements of automotive, drone and audio equipment industries.

7. Do you offer DFM design assistance and rapid prototyping services? +

Yes. We provide free DFM manufacturability analysis for all submitted CAD drawings to optimize structure, reduce production costs and avoid processing defects. We also support fast prototyping for CNC turned, milled, 5-axis and sheet metal parts to verify appearance and assembly performance before mass production.

China CNC Machining Manufacturer

23+ Years Experience

200+ CNC Machines

±0.01mm Tolerance

24H Quote Response

Full Mazak Workshop

From Machining to Finishing, All Under One Roof

CNC Turning

CNC Milling

5-Axis CNC Machining

Sheet Metal Fabrication

Surface Treatments

Support DFM service

Precision CNC Machined Parts For Multiple Industries

3C Electronics Accessories

Automotive Parts

CNC Precision Parts & Fasteners

Electroacoustic Components & Parts Manufacturing

Audio & Visual Electronics Industry

Aerospace & UAV Components

Medical Devices & Equipment Manufacturing

Robotics Components Manufacturing

Custom Precision Machined Components

iPad Hub Manufacturer | CNC Metal iPad Dock & Expansion Hub

Precision Stamping Parts Manufacturer | Custom Metal Stamping Components

Custom CNC Machined Robot Joint & Structural Parts | Precision Metal Components

Custom CNC Machined Medical Device Metal Parts | Stainless Steel & Aluminum | OEM Service

Precision CNC Machined Aluminum & Stainless Steel UAV Structural Parts | Aerospace Components

Custom CNC Turned Aluminum Audio Knob | 6063 Aluminum | Knurled & Anodized

Custom CNC Turned Nut & Stud | Brass / Aluminum / Stainless Steel Fasteners

Custom CNC Machined Aluminum Bicycle & MTB Parts | Lightweight Cycling Components | OEM / ODM

Precision Stainless Steel Wheel Bearing | CNC Machined Automotive Component

Custom Stainless Steel Automotive Fasteners | Precision Machined & Anodic Oxidation

Custom Sheet Metal Fabrication Parts | Aluminum & Stainless Steel | Laser Cutting & Welding

Custom Stamped Aluminum Audio Decorative Sheet | Aluminum | Painted & Screen Printed

Precision CNC Machined Aluminum Audio Interface Panel | 6063 Aluminum | Anodized

Custom CNC Machined Aluminum Mixer Enclosures | 6063 Aluminum | Anodized & Silk Printing

Custom CNC Machined Aluminum Audio Control Panel | 6063 Aluminum | Anodized Finish

Portable CNC Machined Aluminum Audio Enclosure | 6063 Aluminum | Anodized Finish

Custom CNC Machined Aluminum Audio Enclosures | 6063 Aluminum | Anodized & Painted Finish

CNC Turned Aluminum Earphone Metal Components | 6063 Aluminum | Anodized Finish

Custom Aluminum Earphone Case with Laser Engraving | CNC Machined 6063 Aluminum

Custom CNC Machined Aluminum Earphone Housing | Aluminum | Anodized & High Gloss Finish