CNC Machining Services From China
As a reliable CNC machining manufacturer, Formioo cooperates with 200+ vetted suppliers to provide you with a faster and easier way to get precision CNC machining parts with tolerances up to ±0.0001 inches.
- 10+ years of CNC machining experience and a strong supplier network
- Precision CNC Machining with tolerances as tight as ±0.01 mm
- 50+ certified materials & 15+ surface finishing options
- Cost-effective solutions for both prototyping and mass production
- ISO 9001:2015 Certified, ensuring global quality standards
One Stop for All Your CNC Machining Needs
At Formioo, we specialize in high-precision CNC machining, providing cost-effective, reliable, and scalable manufacturing solutions for industries such as automotive, medical, electronics, and industrial equipment. Whether you need rapid prototyping or mass production, we can match you with the most advanced CNC technology to ensure that each part has excellent precision and consistency.
Through our own CNC machining factory and a reliable network of more than 200 suppliers, we offer 3-axis, 4-axis, and 5-axis milling, CNC turning, drilling, and surface finishing, supporting everything from rapid prototyping to mass production. Our ISO 9001:2015-certified quality system ensures tight tolerances as precise as ±0.01 mm across a wide selection of 50+ materials and 15+ finishing options.
As one of the leading CNC machining service providers in China, we are committed to providing cost-effective, high-performance parts with fast turnaround times. We can deliver to you in as little as five business days. All of our custom-manufactured components are competitively priced without compromising on quality.
Our CNC Machining Capabilities
Through professional, experienced, and fully audited owned factories and a network of more than 200 suppliers to provide one-stop, end-to-end CNC machining solutions. Our capabilities include CNC milling, CNC turning, EDM, and high-volume production, ensuring ±0.01 mm precision across 50+ certified materials. Within 48h quick quote, rapid prototyping, mass production, and multiple surface finishing options, we deliver cost-effective, high-quality parts with fast turnaround times.
Capabilities for 3, 4, and 5-axis machining to handle both simple and complex geometries.
Equipped with standard and live tooling capabilities for manufacturing cylindrical parts like pins, shafts, and spacers.
Wire and Sinker EDM are non-contact machining techniques designed for precision cutting of deep features.
High-volume CNC machining is the perfect solution for producing large quantities of high-precision parts for mass production applications.
CNC Machining Capabilities
Supported Materials
Capable of machining aluminum, stainless steel, brass, copper, carbon steel, and engineering plastics (POM, ABS, Nylon, PEEK, etc.), meeting various industrial and custom production needs.
Machining Accuracy
Standard tolerance controlled within ±0.01mm, ensuring high precision for mechanical components, electronic parts, and industrial applications.
Maximum Machining Size
Maximum machining size up to 1000mm × 600mm × 500mm, suitable for small to medium-sized parts.
Surface Finishing Options
Supports anodizing, polishing, sandblasting, powder coating, electroplating, laser engraving, and more for enhanced durability and aesthetics.
Delivery Time
Standard CNC machining lead time is 5-10 days, with expedited service available for urgent projects.
Our Latest CNC Machined Products We have Manufactured
Precision Machining Tolerance
| Name | Metals, PEEK, And ULTEM with Drawing | Other Plastics with Drawing | No Drawing |
|---|---|---|---|
| Linear Dimension | +/- 0.0025 mm +/- 0.0001 inch | +/- 0.05 mm +/- 0.002 inch | ISO 2768 Medium |
| Hole Diameters (Not Reamed) | +/- 0.0025 mm +/- 0.0001 inch | +/- 0.05 mm +/- 0.002 inch | ISO 2768 Medium |
| Shaft Diameters | +/- 0.0025 mm +/- 0.0001 inch | +/- 0.05 mm +/- 0.002 inch | ISO 2768 Medium |
- *Formioo accommodates part lengths of up to 48", depending on the process. For larger dimensions, please reach out to us for inquiries. The tolerances listed represent minimums under ideal conditions; however, looser tolerances may be necessary based on the process, material selection, or part geometry.
CNC Machining Materials
Aluminum
Aluminum is a lightweight, high-strength metal widely used in CNC machining for its excellent machinability, corrosion resistance, and thermal conductivity. Its common sizes are 6061, 7075, 5052, and 2024. It is ideal for aerospace, automotive, and electronics applications due to its durability and low density. Aluminum can also be anodized for enhanced surface hardness and aesthetics. Its versatility and cost-effectiveness make it a top choice for precision-engineered components.
• Mill Lead Time: As fast as 3 days
• Finishes: Raw, anodized, bead blasted, polished
Stainless Steel
Stainless steel is a high-strength, corrosion-resistant metal commonly used in CNC machining for its durability and excellent mechanical properties. Its common grades include 304, 316, and 410, each offering varying levels of strength, heat resistance, and anti-corrosion performance. Ideal for medical, aerospace, and industrial applications, stainless steel provides superior wear resistance and can withstand extreme environments. It is also compatible with various surface finishes, including polishing and passivation, to enhance its performance and aesthetics.
• Mill Lead Time: As fast as 5 days
• Finishes: Raw, polished, passivated, bead blasted
Carbon Steel & Alloy Steel
Carbon Steel & Alloy Steel are strong, durable metals widely used in CNC machining for their high toughness, wear resistance, and cost-effectiveness. Common grades include 1018, 1045 (carbon steel), and 4140, 4340 (alloy steel), offering varying hardness and machinability. Ideal for automotive, industrial, and structural applications, these steels provide excellent mechanical properties and can be heat-treated for enhanced strength and durability. Various surface treatments, such as black oxide and zinc plating, improve corrosion resistance and appearance.
• Mill Lead Time: As fast as 5 days
• Finishes: Raw, black oxide, zinc-plated, powder-coated
Brass & Copper
Brass & Copper are highly machinable metals widely used in CNC machining for their excellent conductivity, corrosion resistance, and aesthetic appeal. Brass (C360, C464) is known for its low friction and antimicrobial properties, making it ideal for fittings, valves, and decorative parts. Copper (C110) offers exceptional electrical and thermal conductivity, making it a top choice for electrical components and heat exchangers. Both materials provide superior durability and can be polished or plated for enhanced performance and appearance.
• Mill Lead Time: As fast as 5 days
• Finishes: Raw, polished, nickel-plated, gold-plated
Titanium
Titanium is a high-strength, lightweight, and corrosion-resistant metal widely used in CNC machining for its exceptional durability and biocompatibility. Common grades include Grade 2 and Grade 5 (Ti-6Al-4V), offering a balance of strength and machinability. Titanium is ideal for aerospace, medical implants, and high-performance automotive parts, where weight reduction and extreme durability are critical. It also withstands high temperatures and harsh environments, making it suitable for demanding applications.
• Mill Lead Time: As fast as 7 days
• Finishes: Raw, bead blasted, polished, anodized
ABS
ABS (Acrylonitrile Butadiene Styrene) is a versatile and cost-effective thermoplastic widely used in CNC machining for its impact resistance, durability, and heat tolerance. Known for its excellent machinability and strength, ABS is a top choice for automotive, consumer electronics, and prototyping applications. It can be easily modified with additives to enhance flame retardancy, UV resistance, or surface hardness, making it adaptable to various industrial needs.
• Mill Lead Time: As fast as 3 days
• Color: Black, neutral matte finish
PC
PC (Polycarbonate) is a high-strength, impact-resistant thermoplastic widely used in CNC machining for its exceptional durability, heat resistance, and optical clarity. Known for its excellent mechanical properties, PC is ideal for automotive, aerospace, and electronic applications, including protective covers and lenses. It offers superior toughness and transparency, making it a great alternative to glass. Additionally, PC can be enhanced with additives for improved UV resistance and flame retardancy, expanding its industrial applications.
• Mill Lead Time: As fast as 3 days
• Colors: Transparent, black, neutral matte finish
POM
POM (Polyoxymethylene, Delrin®) is a high-strength, low-friction thermoplastic widely used in CNC machining for its excellent wear resistance, stiffness, and dimensional stability. Known for its low moisture absorption and high machinability, POM is ideal for gears, bearings, bushings, and mechanical components in automotive, industrial, and consumer applications. It offers good chemical resistance and retains its mechanical properties even in demanding environments, making it a reliable choice for precision parts.
• Mill Lead Time: As fast as 3 days
• Colors: Black, white, neutral matte finish
PMMA
PMMA (Polymethyl Methacrylate, Acrylic) is a transparent, lightweight thermoplastic widely used in CNC machining for its optical clarity, UV resistance, and weather durability. Known for its high impact strength and excellent machinability, PMMA is an ideal choice for display panels, lighting components, lenses, and protective covers. It offers superior scratch resistance compared to polycarbonate and can be polished to achieve a glass-like finish, making it a popular alternative to glass in various applications.
• Mill Lead Time: As fast as 3 days
• Colors: Transparent, black, neutral matte finish
PEEK
PEEK (Polyether Ether Ketone) is a high-performance engineering thermoplastic widely used in CNC machining for its exceptional strength, heat resistance (up to 260°C), and chemical resistance. Known for its superior mechanical properties, PEEK is ideal for aerospace, medical, and automotive applications, including structural components and high-wear parts. It offers excellent dimensional stability and biocompatibility, making it a top choice for demanding environments where durability and performance are critical.
• Mill Lead Time: As fast as 5 days
• Colors: Natural (beige), black
PTFE
PTFE (Polytetrafluoroethylene, Teflon®) is a high-performance thermoplastic widely used in CNC machining for its exceptional chemical resistance, low friction, and high-temperature tolerance (up to 260°C). Known for its non-stick properties and electrical insulation, PTFE is ideal for seals, gaskets, insulators, and medical components. It maintains stability in extreme environments, making it a preferred material for aerospace, chemical processing, and food-grade applications.
• Mill Lead Time: As fast as 5 days
• Colors: White, black
PEI
PEI (Polyetherimide, Ultem®) is a high-performance thermoplastic widely used in CNC machining for its exceptional heat resistance (up to 217°C), flame retardancy, and mechanical strength. Known for its dimensional stability and excellent electrical insulation, PEI is ideal for aerospace, medical, and electronic applications requiring high-performance materials. It also offers good chemical resistance and maintains strength under extreme conditions, making it a reliable choice for demanding environments.
• Mill Lead Time: As fast as 5 days
• Colors: Amber, black
Nylon
Nylon (Polyamide, PA) is a strong, durable thermoplastic widely used in CNC machining for its high wear resistance, toughness, and chemical stability. Known for its low friction and excellent mechanical properties, Nylon is ideal for gears, bearings, bushings, and structural components in automotive, industrial, and consumer applications. It can absorb moisture, which affects its dimensional stability, but additives can improve its performance for specific uses.
• Mill Lead Time: As fast as 3 days
• Colors: Natural (off-white), black
Finishing Options for CNC Machining
| Name | Applicable Materials | Colors | Can Be Applied with | |
|---|---|---|---|---|
|
Chem Film | Aluminum | Clear, gold | Media Blasting, Tumbling, Type II Anodizing* Type III Anodizing with PTFE* |
|
Anodizing | Aluminum | Clear, black, grey, red, blue, gold | Media Blasting, Tumbling, Chem film* |
|
Black Oxide | Steel, Stainless Steel | Black | Media Blasting, Tumbling, Passivation |
|
Electroless Nickel Plating | Aluminum, Steel, Stainless Steel | — | Media Blasting, Tumbling |
|
Electropolishing | Steel, Stainless Steel | — | — |
|
Hand Polishing | Acrylic | — | Enhanced Cosmetic Appearance |
|
Media Blasting | Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper | — | All post processes, except Electropolish and Powder Coat |
|
Nickel Plating | Aluminum, Steel, Stainless Steel | — | Media Blasting, Tumbling |
|
Passivation | Steel, Stainless Steel | — | Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting |
|
Powder Coating Services | Aluminum, Steel, Stainless Steel | Full Pantone or RAL color catalog | — |
|
Tumbling | Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper | — | All post processes, except Electropolish and Powder Coat |
|
Vapor Polishing | CNC Polycarbonate (Clear, Black) | — | Enhanced Cosmetic Appearance, Near Optically Clear Applications |
|
Zinc Plating | Steel, Stainless Steel | Clear (light blue coating). Black (glossy black coating). | Media Blasting, Tumbling, Passivation |
- *We offer a range of additional finishing options, including chromic acid anodizing, cadmium plating, copper plating, titanium anodizing (blue anodizing), gold plating, silver plating, and more. If you require finishes for materials not mentioned here, please reach out to us directly.
CNC Machining FAQs
What is your standard lead time for CNC machining orders?
Standard lead time is 3-7 days, depending on part complexity and order volume. Expedited options are available.
What types of materials work with your CNC machines?
We provide aluminum, stainless steel, carbon steel, copper, brass, titanium, and plastics like ABS, POM, PC, and Nylon, 45+ certified materials. You can always request a custom material through our custom RFQ process.
Do you offer free samples?
Yes, free swatches and stock samples are free, but the shipping needs to be paid at customers side.
What file format do we use?
All is acceptable, including Ai, tif, jpg, psd, pdf.
What industries do you serve?
We work with aerospace, automotive, medical, electronics, and industrial sectors, delivering high-quality machined parts.
Do you offer DFM (Design for Manufacturability) analysis?
Yes, we provide DFM analysis to help optimize your design, reduce costs, and improve manufacturability.
Can you machine complex parts?
Yes, we specialize in 3-axis, 4-axis, and 5-axis CNC machining, handling intricate designs with high precision.
What tolerances can your CNC machines achieve?
Our standard tolerance is ±0.01 mm, but we can meet tighter tolerances upon request.
How do you safeguard the confidentiality and security of our designs and intellectual property?
At Formioo, we understand the importance of protecting your valuable design IP. That’s why our platform is built with top-tier security and confidentiality at its core. From login to file upload and through to part fulfillment, our secure Digital Manufacturing Ecosystem ensures your intellectual property remains safe and protected at every step of the process.
Is there a minimum order quantity (MOQ) for CNC machining?
We recognize the varying needs of our customers, from single prototypes to large-scale production runs, which is why we do not impose a strict minimum order quantity (MOQ). Whether you need a single machined part or thousands, we are fully equipped to deliver customized solutions tailored to your requirements. Our flexible approach ensures that every client, regardless of order size, receives exceptional service and top-quality results.
How long does it take to receive a part once an order is placed?
The lead time for receiving a CNC machined part from Formioo depends on various factors, such as the complexity of the design, the chosen material, and our current production schedule. CNC machining is renowned for its efficiency, especially for simpler parts, enabling quick turnarounds. In many cases, parts can be delivered as quickly as one week after the machining setup is finalized. For the most accurate estimate tailored to your project, we encourage you to reach out to us for a detailed quote. This ensures we can provide a precise timeframe based on your specific requirements.
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