Professional Custom Metal Stamping Processing

Precision Machining for Metal & Wood | One-stop Prototyping & Mass Production

High Precision, Fast Delivery, Direct Supply from China Factory

Overview: We are a professional cnc machining parts factory in China, equipped with full set of 3-axis / 4-axis / 5-axis / wood CNC machines, own independent machining workshop, surface treatment line and inspection center. As an experienced cnc machining company, we accept global OEM & ODM customized orders, provide one-stop service including free DFM optimization, drawing conversion, customs declaration and logistics. Our products are exported to Europe, America, Southeast Asia and Australia, and we can provide full material reports, precision inspection reports and export compliance documents.

What is CNC in Machining

CNC (Computer Numerical Control) machining is a precision manufacturing process. It uses programmed commands to control CNC machines, to cut, drill, mill and turn raw materials like metal, wood and plastic into finished parts according to drawing parameters. It can process complex irregular structures and high-precision parts without mold opening, flexibly fits single prototype, small batch customization and mass production, and is the mainstream manufacturing process for precision hardware, structural parts and prototype parts.

Key Industries

  • Automotive
  • Medical Devices
  • Industrial Equipment
  • Consumer Electronics
  • Home Appliances
  • Communications
  • Beauty & Cosmetics
  • Computer Peripherals
  • Precision Instruments
  • General Equipment

Our CNC Machining Capabilities

CNC Milling

Ideal for machining complex 3D structures, flat surfaces, grooves, holes and curved components. Widely applied to industrial brackets, electronic housings, mold cores and precision parts.

CNC Turning

Designed for processing cylindrical, conical and rotary parts, including shafts, sleeves, bolts, nuts and other rotational components.

CNC Drilling & Tapping

Specialized in precision hole drilling, tapping and thread processing, ensuring accurate hole positioning and high-quality threads to meet assembly requirements.

Precision CNC Machining

Suitable for high-precision parts with strict tolerance requirements (such as medical device components and aerospace parts), delivering exceptional dimensional accuracy.

Prototype CNC Machining

Fast low-volume prototype production to help customers validate product designs and accelerate project launch.

Custom CNC Machining

Fully customized based on customers’ 3D drawings, product dimensions, precision requirements and material types, supporting components with complex structures.

CNC Machining Materials

Metals

Aluminum Alloy: 6061, 7075, 5052, light weight, easy machining, good anodizing effect, first choice for general structural parts

Copper / Brass: H59, H62, Red Copper, high conductivity and thermal conductivity, for terminals and heat dissipation parts

Stainless Steel: 304, 316, 201, anti-rust and anti-corrosion, dedicated for medical, food and outdoor parts

Titanium Alloy: TC4, high strength and light weight, for aerospace and medical high-end parts

Carbon Steel / Alloy Steel: 45#, Q235, 40Cr, high strength and hardness, for load-bearing structural parts

Plastics

Aluminum Alloy: 6061, 7075, 5052, light weight, easy machining, good anodizing effect, first choice for general structural parts

Copper / Brass: H59, H62, Red Copper, high conductivity and thermal conductivity, for terminals and heat dissipation parts

Stainless Steel: 304, 316, 201, anti-rust and anti-corrosion, dedicated for medical, food and outdoor parts

Titanium Alloy: TC4, high strength and light weight, for aerospace and medical high-end parts

Carbon Steel / Alloy Steel: 45#, Q235, 40Cr, high strength and hardness, for load-bearing structural parts

CNC Machine Wood Materials

olid wood, MDF, plywood, acrylic, bamboo

Support cutting, carving, slotting, drilling and curved surface forming, suitable for furniture parts, wooden crafts, decorative parts and wooden structural parts processing

CNC surface treatment options

Metal CNC Machining Surface Finishes

  • Anodizing (clear / colored / hard coat)
  • Hard Anodizing
  • Nickel Plating / Zinc Plating / Chrome Plating / Copper Plating
  • Passivation (for stainless steel)
  • Black Oxide / Blackening
  • Polishing (mirror / matte)
  • Wire Brushing
  • Sandblasting
  • Powder Coating
  • Painting / Spray Coating
  • Electrophoresis / E-coating
  • Tin Plating
 

Wood & Non-Metal CNC Machining Surface Finishes

  • Sanding & Polishing
  • Varnishing / Painting
  • Wood Wax Oil Treatment
  • Edge Sealing / Glazing
  • Carving & Protective Coating

Small Batch & Mass Production Solution

  • Prototype Order: 1-10 pcs, no mold required, fast production, delivery in 3-5 days, suitable for R&D prototype, function test and appearance verification
  • Small Batch Order: 10-500 pcs, standardized production scheduling, best cost performance, suitable for new product trial production and small batch stock
  • Mass Production Order: Over 500 pcs, exclusive production line, optimized process for mass production, minimize unit cost, suitable for long-term repeat orders and large overseas orders

Lead Time & MOQ

  • Drawing Review & Quotation: 1-2 working days
  • Prototype Delivery Time: 3-5 working days
  • Small Batch Production Lead Time: 5-10 working days
  • Mass Production Lead Time: 10-20 working days
  • MOQ: No strict minimum order, support 1 piece order, prototype customization, small trial order and long-term bulk cooperation

Quality Control & Precision Assurance

  • Dimensional Tolerance: Standard ±0.05mm, Precision ±0.01mm~±0.03mm
  • Surface Roughness: Ra0.8~Ra6.3, polishable to Ra0.2
  • Min Machining Hole Diameter: 0.2mm
  • Min Inner Radius: ≥0.3mm
  • Max Machining Size: Full coverage for regular workpieces within 1500mm
  • Min Machining Wall Thickness: 0.3mm (adjusted according to material)

Types of CNC Machining Process

CNC Milling: Flat, cavity, curved surface and irregular structure processing

CNC Turning: Shaft, circular and rotary parts processing

CNC Milling: Flat, cavity, curved surface and irregular structure processing

4-axis / 5-axis Machining: Multi-face integrated and complex curved surface precision processing

Swiss-type Machining: High-speed mass production of micro precision shaft parts

Wood CNC Machining: Wood cutting, carving, slotting and forming

Common Machining Defects & Solutions

🚫 Machining Vibration Lines

✅ Optimize tool clamping length, adjust cutting parameters, add workpiece support

🚫 Dimensional Out of Tolerance

✅ Calibrate machine accuracy, optimize tool wear compensation, strictly control machining allowance

🚫 Thin-wall Part Deformation

✅ Adopt layered cutting, reduce clamping pressure, do stress relief treatment

🚫 Over-cut & Tool Deflection

✅ Optimize tool path, reduce cutting depth, select rigid tools

🚫 Poor Surface Roughness

✅ Increase spindle speed, reduce feed rate, replace sharp tools

CNC Machining Process

  • Receive customer 3D/2D drawings + DFM machinability optimization evaluation
  • Confirm processing material, precision requirement and surface finishing plan
  • CNC programming, tool selection and equipment debugging
  • Raw material cutting and leveling pretreatment
  • CNC rough machining + finish machining integrated forming
  • Deburring, chamfering and corner cleaning post-processing
  • Full dimension inspection via CMM or caliper
  • Customized surface finishing processing
  • Final re-inspection, anti-rust packaging and delivery arrangement

TOPWELL CNC Machining Advantages

High Precision & Tight Tolerances

With multi-axis CNC equipment, we deliver parts with tolerances as tight as ±0.01mm, ensuring reliable fit and function even for complex geometries. We work with a full range of materials, including aluminum, steel, copper, zinc alloys, and engineering plastics like ABS, PC, POM, and PEEK.

Fast Lead Times & On-Time Delivery

Prototypes can be ready in just 1–3 business days, while small-batch orders (10–1000 units) ship in 7–15 days. Our streamlined scheduling keeps our on-time delivery rate above 98%, so your project stays on track.

One-Stop Machining Service

From DFM review and programming to machining, surface finishing (anodizing, painting, blasting, plating), and quality inspection — we handle every step in-house. You only need one point of contact, eliminating miscommunication and delays from multiple vendors.

Rigorous Quality Control

Every part undergoes three-stage inspection: first-article confirmation, in-process checks, and final verification. Critical dimensions are 100% inspected, and we provide CMM reports, material certifications, and RoHS compliance documents to meet your export and audit requirements.

Flexible Support From Prototyping to Mass Production

We seamlessly bridge prototyping, pilot runs, and full-scale production. No need to re-qualify processes later — we adjust our machining strategy to reduce per-unit costs as your order volume grows, setting you up for smooth, scalable manufacturing.

Frequently Asked Questions

We can process full series metal including aluminum, stainless steel, carbon steel, copper, titanium, as well as non-metal including solid wood, board, acrylic and plastic, wood CNC machining is available.

No minimum order quantity, we support 1 piece prototype order and large volume long-term orders.

We support metal surface treatments including anodizing, plating, powder coating, wire drawing, black oxide, polishing, as well as wood grinding, painting and edge sealing.

Professional original CNC machining factory in China

Full range metal & wood processing, accept prototype and mass production orders

Free drawing evaluation, process optimization and accurate overseas quotation

Contact us now to start your CNC machining purchasing project

Custom CNC Machining Parts

Precision mechanical parts, auto parts, new energy structural parts, electronic equipment housings, medical device parts, aerospace components, furniture wooden parts, wooden crafts, prototype parts, custom non-standard structural parts, full range of cnc machining parts covered

汽车工业

材料:
汽车支架

消费电子行业
电子硬件:连接器针脚、外壳冲压部件、散热器、电池触点

家用电器行业
家用电器硬件:控制面板、支架、装饰性冲压部件、门把手

工业设备行业
工业五金:机械支架、垫圈、紧固件、冲压部件

硬件与建筑行业
建筑用五金:门窗配件、家具五金、冲压紧固件