CNC Machining Services for Custom Parts

Date: 2024-08-16　‖　Author：FuDong Machinery

Our advanced milling centers and turning equipment deliver precision with tolerances as tight as 0.001 inches. Beyond standard machining, we provide value-added services like CNC routing, EDM machining, and precision grinding, perfect for designers and product developers seeking to actualize innovative ideas with top-quality custom components. Whether the project is straightforward or complex, our equipped machine shops are ready to take it on. We guarantee not only superior quality but also rapid delivery—custom simple machined parts are shipped within just 1 day.

1. Custom CNC Milling Services

CNC milling employs multi-axis operations, such as 3, 4, and 5-axis machining, to ensure precision and intricate geometries from blocks of metal or plastic, efficiently producing complex parts.

• Tolerances as tight as +/- 0.001 inches.
• Custom milled parts for prototyping and production.

From 3-axis basics to intricate 5-axis projects, our precision CNC milling makes your designs come alive with unmatched accuracy and craftsmanship.

　　　　　　

　　　　　　　　　　　　3-Axis CNC Milling　　　　　　　　　　　　　　　4-Axis CNC Milling

With 3-axis CNC milling, precision meets affordability.  It’s your go-to for simple parts that still demand accuracy. For some design, 4-axis milling may make it easier to machine on multiple sides.

For those complex and intricate parts, 5-axis milling is the master key. Bring your most ambitious designs to life.

　　　　　　　　　　　　　　　5-Axis CNC Milling

2. Custom CNC Turning Services

CNC turning uses CNC lathes and turning centers to shape metal rob stock, focusing primarily on cylindrical turned parts. Ensure components achieve consistent dimensions and smooth finishes.

• Achieves +/- 0.0005 inches precision.
• Custom turned parts for prototyping and production

Take advantage of the on-demand CNC turning and get reliable metal and plastic turned parts for your unique projects. With advanced technologies and expert technicians, FuDong produces high-quality custom prototypes and end-use production parts. Our CNC turning capabilities allow us to deliver turned parts with high accuracy, regardless of the complexity. You will get durable parts from flats to radial and axial holes, slots, and grooves as fast as one day.

Our precision CNC turning lathes provide low-cost parts for simple and complex cylindrical geometries. We also use Live tooling to create precise, complex geometries for features like axial and radial holes, grooves, slots, and flats. Full automation of these versatile machines allows us to produce hundreds of similar dimensions easier, faster, and cost-effectively.

3. CNC Machining Materials

At FuDong, our CNC machining service offers a diverse range of materials, ensuring precision and durability. This vast selection empowers our clients with optimal choices for their unique projects, boosting their product’s quality and performance.

Our CNC machining processes are compatible with a wide range of materials, including machine-grade metals and plastics. Depending on your applications, we can create precise rapid prototypes and low-volume production from various superior-quality materials. Check out some of the common materials for your CNC machining projects.

Frequently requested materials

① Steels	② Aluminum alloys
1.0037 | S235JRC+C | St37k	EN AW-1050A | 3.0255 | Al99,5
1.0038 | S235JR | St37-2	EN AW-2007 | 3.1645 | AlCuMgPb
1.0503 | C45	EN AW-5083 | 3.3547 | AlMg4,5Mn
1.0570 | S35J2 | St52-3	EN AW-5754 | 3.3535 | AlMg3
1.1730 | C45U	EN AW-6060 | 3.3206 | AlMgSi0,5
1.2379	EN AW-6061 | 3.3211 | AlMg1SiCu
1.2842 | 90MnCrV8	EN AW-7022 | 3.4345 | AlZnMgCu0,5
1.4301 | V2A	EN AW-7075 | 3.4365 | AlZnMgCu1,5
1.4305	④ Plastics
1.4404 | V4A	PEEK
1.7131 | 16MnCr5	PMMA | Acrylic glass
1.7225 | 42CrMo4	POM (white／black)
	PTFE | Teflon
③ Other metals	PVC
Copper | OF-Cu | 2.0040 | EN CW008A	Standard plastics
Brass|CuZn39Pb3 | 2.0401 | EN CW614N|Ms58	Engineering plastics
Bronze | CuSn8	High-performance plastics
Titanium | Ti6Al4V | 3.7165	Fiber-reinforced plastics

Extensive material list (incomplete)

① Steels	② Aluminum alloys
Basic steels	1000s: pure aluminum (> 99% aluminum)
Non-alloyed quality steels	2000s: alloys with copper
Alloyed quality steels	3000s: alloys with manganese
Non-alloyed high grade steels	EN AW-3003 | 3.0517 | AlMnCu
Alloyed high grade steels: tool steels	EN AW-3103
Alloyed high grade steels: high speed steels	4000s: alloys with silicon
Rolling bearing steels	5000s: alloys with magnesium
Steels with special magnetic or physical properties	6000s: alloys with magnesium and silicon
Alloyed high grade steels: stainless steels	7000s: alloys with zinc
Alloyed high-grade steels: heat-resistant steels	8000s: alloys with other elements (e.g. lithium or iron)
Alloyed high-grade steels: structural steels	③ Other metals
Alloyed high-grade steels: machine steels	Non-alloyed and low-alloyed copper
Alloyed high-grade steels: container steels	Brass (copper-zinc alloys)
Alloyed high-grade steels: nitriding steels	Bronze (copper alloys without zinc as main alloy additive)
	Non-alloyed titanium
	Titanium alloys

CNC Machining Surface Finishes

Achieve the perfect finish with our range of surface treatments. Whether you require anodizing, plating, or painting, we ensure your parts meet both aesthetic and functional specifications. We offer superior surface finishes that enhance part durability and aesthetics for applications requiring smooth or textured surfaces. 

Surface	Finishes	Description	Services	Applicable Materials
	As Machined	Standard finish, surface roughness of 3.2μm(126μin), removes sharp edges and deburs parts cleanly.	CNC machining, Sheet metal fabrication	Metals, Plastics
	Sand Blasting	Powerfully propels blast media against surfaces to remove coatings and impurities.	CNC machining, Sheet metal fabrication	Metals, Plastics
	Tumbling	Utilizes barrel or vibratory processes with abrasives to smooth and polish the surface of parts.	CNC machining, Sheet metal fabrication	Metals, Plastics, Glass
	Electropolish	Electrochemical process that smoothens, polishes, and deburrs metal surfaces to a high gloss.	CNC machining	Stainless steel, Copper, Aluminum
	Heat Treatment	Alters the physical (and sometimes chemical) properties of a material to achieve desired mechanical properties	CNC machining	Metals
	Alodine	Chemical treatment process providing corrosion protection and surface preparation for paint adhesion.	CNC machining, Sheet metal fabrication	Aluminum, Aerospace Alloys
	Anodizing	Electrochemical process that forms a durable, corrosion-resistant oxide layer on the surface of metals.	CNC Machining, Sheet metal fabrication	Aluminum
	Teflon Coating	Applies a protective layer of PTFE to reduce friction and enhance corrosion resistance.	CNC machining, Sheet metal fabrication, Injection molding	Metals, Plastics
	Black Oxidize	Chemical bath that creates a black oxide coating on metal to improve corrosion resistance.	CNC machining, Sheet metal fabrication	Steel, Iron
	Electroless Plating	Deposition of a metal coating on substrates using an autocatalytic chemical process.	CNC machining, Injection molding, 3D printing	Metals, Plastics
	Electroplating	Uses electric current to reduce dissolved metal cations to form a coherent metal coating.	CNC machining, Sheet metal fabrication	Metals, Plastics
	Painting	Application of paint for aesthetic improvements and protective coatings.	CNC machining, Sheet metal fabrication, Injection molding, 3D printing	Metals, Plastics, Wood
	Passivation	Chemical treatment to enhance the corrosion resistance of metals by removing free iron from the surface.	CNC machining, Sheet metal fabrication	Stainless Steel, Other Corrosion-resistant Alloys
	Powder Coating	Dry finishing process using powdered paint to provide a high-quality, durable finish.	CNC machining, Sheet metal fabrication, Injection molding	Metals, Some Plastics
	Electrophoresis	Coating process using charged particles suspended in a solvent, typically for uniform finishes.	CNC machining, Sheet metal fabrication	Metals, Ceramics
	Brushed Finish	Mechanical polishing that produces a unidirectional satin finish.	CNC machining, Sheet metal fabrication	Metals
	SPI Finish	SPI Finish standardizes surface textures on plastic parts, offer-ing finishes from high-gloss to matte, ensuring consistent aesthetics and functionality in injection molding.	Injection molding	Plastics

5. Tolerances for CNC Machining

Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.

	Description
General Tolerances	Metals : ISO 2768-m　／　Plastics : ISO 2768-c
Precision Tolerances	FuDong can manufacture and inspect parts with strict tolerances according to your drawing specifications and GD&T annotations, including tolerances tighter than +/- 0.001 inches.
Min Wall Thickness	0.5 mm
Min End Mill Size	0.5 mm
Min Drill Size	1 mm
Maximum Part Size	CNC Milling: 4000×1500×600 mm 　‖　　CNC Turning: 200×500 mm
Minimum Part Size	CNC Milling: 5×5 ×5 mm 　‖　　CNC Turning: 2×2 mm
Production Volume	Prototyping: 1～100 pcs　‖　Low volume: 101～10,000 pcs　‖　High volume: Above 10,001 pcs
Lead Time	5 working days for most projects. 　‖　　Delivery of simple parts can be as fast as 1 day.

6. CNC machining design guide assistant

	Description
Radii	In CNC machining, sharp internal corners on a workpiece will naturally form rounded corners (radii). The depth must not exceed 12 times the diameter of the drill. For end mills, the depth must not exceed 10 times the diameter of the tool.
Threads and Tapped Holes	Diameter Φ 1.5-5 mm, depth: 3 times the diameter. 　‖　Diameter Φ 5 mm or larger, depth: 4-6 times the diameter. 　‖　FuDong can produce threads of any specification and size as required by the customer.
Undercuts	Square profiles, full radius, dovetail profiles.
Text	CNC Milling: Minimum width of 0.5 mm and depth of 0.1 mm. 　‖　CNC Turning: FuDong can use laser marking to create standard text for CNC turned parts. 　‖　FuDong can create standard text via CNC engraving or laser engraving as per customer requirements.

7. Prototyping or Proofing

Accelerate product development with our rapid machining services. We offer fast turnaround times and specialize in quick production of high-quality prototypes and mold tooling, aiding your design verification process.

8. Low and High-Volume Production

Whether you need small batches or large-scale production, we can offer you both. With stringent tolerance controls and comprehensive capabilities, we adapt to your volume requirements without compromising on quality.

9. Fudong’s CNC Machine Workshop

CNC machining begins with a design drawing of the part. The machine then precisely removes the material, transforming your drawing idea into a machined part within reach. This cutting can be done from different angles using machines with 3, 4 or 5 moving parts called axes.

At FuDong, our own CNC machining factories are located in Shenzhen and Dongguan, adjacent to Hong Kong. Not only do we have nearly 100 CNC machines, but we also have grinders for smoothing surfaces, wire cutters for precise cuts, and EDM machines for detailed shapes. This variety allows us to tackle complex designs that produce unique CNC machined parts with specific requirements. Our skilled machinists work with exceptional accuracy, achieving tolerances as precise as 0.01mm. This level of detail is crucial for components that must fit perfectly into larger assemblies.

FuDong’s Factory CNC Workshop

We also use automated production lines. These are setups where machines work together smoothly and quickly, which helps us produce large quantities faster and reduces the chance of errors. This efficiency means we can deliver quality machined parts quickly to meet our clients’ needs, keeping projects on schedule.

10. CNC Machining for Various Industries

FuDong’s CNC machining services cater to a wide range of industries, from automotive to aerospace, ensuring that each sector’s unique requirements are met with precision.

Contact us and upload a CAD file as soon as possible and you will receive instantly quotes, lead time, and DFM details for your CNC components. Specializing in CNC machining for metals and plastics, we provide adaptive production and shipping solutions to align with your product development needs.

Let’s Get Started.