Custom CNC Milling Services
High quality precision CNC milling services in China you can trust. Competitive pricing and fast turnaround
- Over 80 Certified Materials
- ±0.01mm Tight Tolerance
- Custom Finishes
- Lead times from 7 days
- Customer data security
Precision CNC Milling Services From China
Looking for a reliable supplier of CNC machined parts?
Our 20+ CNC mills, including 3-, 4-, and 5-axis centers, quickly produce precise prototypes and low-volume parts with complex shapes. Ideal for intricate details, slots and grooves.
We specialize in producing functional parts such asBrackets, gears, fittings, housings, casings, molds, engine parts, medical devices, punches and dies.Ideal for use in many industries.
Materials for CNC Machining Parts
YD provides a comprehensive range of materials for custom CNC machining, plastics and metals, including but not limited to:
CNC Metals
Aluminum:The combination of aluminium’s strength-to-weight ratio, economy and recyclability has resulted in its utilisation in a diverse range of industries across the globe.
Alloys: 6061-T6, 7075-T6, 5052, 6060, 6082, 5005, 5083, 2017
The available finish options are as follows: anodised, II, III, III + PTFE type anodised, ENP, media blasted, nickel plated, powder coated, and roller polished.
Stainless steel:The Versatile, durable alloy primarily composed of iron and carbon.
Alloys:SS303, Stainless Steel 304/304L, Stainless Steel 316/316L, Stainless Steel 17-4, Stainless Steel 416, etc.
TThe item has undergone a series of processes, including machining, bead blasting, polishing, decorative chrome plating, powder coating, nickel plating, gold plating, and silver plating.
Alloy Steel:Alloy steels are a combination of elements, including manganese, nickel and chromium, which serve to enhance the strength, hardness, corrosion resistance and durability of the material for specific applications.
Alloys: AISI 1215, AISI 4140, AISI 4340, AISI 8620, AISI 4130
The processes of polishing, plating, painting and powder coating, among others, are employed in this context.
Tool Steel:Designed for the manufacture of cutting tools, dies and moulds, it is a high hardness, wear resistant alloy.
Alloys: A2 Tool Steel, D2 Tool Steel, O1 Tool Steel, S7 Tool Steel, M2 Tool Steel
The processes include bead/sand blasting, polishing, plating, painting, powder coating, heat treatment, and so forth.
Brass:Brass is an alloy of copper and zinc, especially metal material with more than 20% zinc content, which is the most commonly used metal material in cnc machining.
Alloys: C360, C260
Nickel Plating, Bead Blasted, Gold Plating, Silver Plating.
Copper: Copper is a malleable metal with excellent thermal and electrical conductivity, rendering it a material of significant importance to numerous industrial sectors.
Alloys: C10100, C11000, C12200, C14500, C17200
Finishing Option: Plating, Polishing
Aluminum:A strong, lightweight metal with excellent corrosion resistance, widely used in aerospace, medical implants, and high-performance applications.
Alloys: Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-3Al-2.5V
The final stage of the process is the finishing option. The finishing options include polishing, anodising, sandblasting, chemical etching, laser engraving, and so forth.
Magnesium:A lightweight, strong metal with excellent machinability and high thermal conductivity, often used in aerospace, automotive, and electronics applications.
Alloys: AZ31B, AZ91D, We43, AM60B, ZK60A, QE22
Finishing options include blasting, anodising, chromate conversion coating, passivation, powder coating and electroplating, among others.
CNC Plastics
POM (Delrin/Acetal): A strong, low-friction thermoplastic with excellent dimensional stability and wear resistance, widely used in precision engineering applications like gears and bearings.
Color: White, Black, Brown
Grade: POM, UV-stabilised POM, food-grade POM.
PMMA:A transparent, lightweight plastic with excellent optical clarity and weather resistance, often used as a glass substitute in windows, displays, and lighting fixtures.
Color: transparent.
Grade: PMMA, UV-stabilized, Heat-resistant.
PEEK:A high-performance thermoplastic known for its exceptional strength, heat resistance, and chemical stability, used in demanding applications like aerospace, medical devices, and industrial components.
Colour: Beige without transparency
Grade: Unfilled PEEK, 30% glass fibre reinforced PEEK, 30% carbon fibre reinforced PEEK, bearing grade PEEK.
ABS:A tough, impact-resistant thermoplastic known for its strength, versatility, and ease of molding, commonly used in automotive parts, consumer goods, and 3D printing.
Colour: ABS is naturally opaque and is available in a range of colours including black, white and grey.
Grade: General purpose ABS, Flame retardant ABS, High impact ABS, Heat resistant ABS.
Nylon (PA): A versatile, durable thermoplastic known for its strength, wear resistance, and flexibility, commonly used in textiles, automotive parts, and industrial components.
Colour: Nylon is often used in its natural off-white or slightly yellowish colour.
Grade: Nylon 6, Nylon 6/6, Nylon 11, Nylon 12.
PTFE (Teflon): A highly versatile fluoropolymer known for its exceptional chemical resistance, low friction, and non-stick properties, widely used in coatings, gaskets, and electrical insulation.
Color: PTFE color is typically white or cream.
PVC (Polyvinyl Chloride): A durable, versatile plastic known for its chemical resistance and low cost, widely used in construction, piping, and electrical insulation.
Color: clear or opaque
Grade: UPVC, PPVC, CPVC
PEI (Ultem): A high-performance thermoplastic known for its exceptional strength, flame resistance, and thermal stability, commonly used in aerospace, medical, and electronic applications.
Color: Amber or brownish color
Grade: Unfilled PEI, Glass-Filled PEI, Carbon-Filled PEI, Ultem PEI
Polycarbonate is extremely durable and has high impact resistance, along with excellent clarity, used in bulletproof glass and protective gear.
PC Black
PC Clear
PC White
PC Yellowish White
PC+GF30 Black
CNC Milling General Tolearances
YD offers a variety of CNC machining tolerances tailored to your specific design needs, including GD&T callouts. Depending on your part geometry and selected material, we can accommodate standard and custom thread sizes, achieving tolerances down to ±0.001″. Our standard CNC milling tolerances for metals are ISO 2768-m, while for plastics we adhere to ISO 2768-c.
+/- 0.025 mm
+/- 0.001 inch
+/- 0.025 mm
+/- 0.001 inch
+/- 0.025 mm
+/- 0.001 inch
950 * 550 * 480 mm
37.0 * 21.5 * 18.5 inch
Surface Finishes for CNC Machined Parts
In addition to our custom CNC machining services, we offer complete surface finishing solutions for precision machined parts. If you need a custom surface finishing solution that is not listed, please contact us and we would be honored to customize our services for you.
As machined (Ra 3.2μm / Ra 126μin)
The fastest finishing option. A surface finish that results directly from the machining process, without additional polishing or treatment, characterized by visible tool marks and high dimensional accuracy.
Smooth machining (Ra 1.6μm / Ra 63μin)
Smooth machining is like machining but with less visible marks. Parts are machined at lower speeds, so there's no need for hand polishing.
Polishing (Ra 0.8μm / Ra 32μin or better)
A finishing process that enhances surface smoothness and shine, achieving a low roughness average (Ra) for improved aesthetics and reduced friction.
Spray painting
Spray painting is a surface treatment process used to apply paint or coatings for protection or aesthetics, commonly applied to plastic, metal, and other materials.
Bead Blasting
A surface finishing process that uses fine glass beads to create a smooth, matte texture, removing imperfections and providing a uniform appearance.
Tumbled
Tumbling is a process of vibrating parts to remove sharp edges. Tumbling can also remove marks from parts that aren't machined.
Bead blasted + Anodizing type II
Before anodizing, parts are blasted to improve corrosion resistance and appearance.
Bead blasted + Anodized type III (Hardcoat)
Before anodizing, parts are sandblasted to #120 grit. Type III is thicker and more abrasion-resistant than Type II.
Black Oxide
A surface treatment that applies a thin, corrosion-resistant black coating to steel or iron parts, enhancing appearance and providing mild protection without altering dimensions.
Powder Coated
A durable finishing process where a powder is electrostatically applied and then cured under heat, creating a tough, protective, and uniform coating with various color options.
Chromate Conversion Coating
A corrosion-resistant surface treatment applied to metals, primarily aluminum, providing a protective layer that enhances paint adhesion and resists oxidation.
Plating
This group includes nickel, silver, gold, zinc, chrome, and tin plating. It reduces corrosion, improves appearance and functionality, and increases solderability and conductivity.
Why Order CNC Milled Parts From YD PROTOTYPE?
FAQs For CNC Milling Services
Contact Us
If you require a product made from metal or plastic, please contact the YD sales team for a prompt quotation.
- Phone: 0086 139 2847 2576
- Mail: info@ydrapid.com
- Address: No.802 Wangfeng Innovation Industrial Park No.1054 | 358 Provincial Rd | Shatou village | Chang'an Town 523861 | Dongguan | Guangdong | China
Find Us
Submission of drawings and detailed requirements via
- Phone: 0086 139 2847 2576
- Mail: info@ydrapid.com
- Address: No.802 Wangfeng Innovation Industrial Park No.1054 | 358 Provincial Rd | Shatou village | Chang'an Town 523861 | Dongguan | Guangdong | China