Custom CNC Machining Services
We offer a full range of CNC machining services, delivering everything from rapid prototypes to high-quality production parts.
- Tolerances down to ±0.0002″ (0.005mm)
- Parts as fast as five days
- 50+ material options
- ISO 9001:2015, IATF 16949:2016 Certified
Start a New CNC Project!
STEP | STP | IGS | IGES | PRT | SLDPRT | SAT | X_T
Max. file size: ≤15MB
Reliable CNC Machining Service Provider from China
Robotika is a precision CNC machining manufacturer in China, offering rapid and reliable CNC milling and turning services for both plastic and metal components. Equipped with advanced 3-, 4-, and 5-axis machining centers, we are capable of delivering quick-turn prototypes and high-accuracy end-use parts with tight tolerances. From early-stage design to final inspection, our CNC machining services are designed to solve real-world manufacturing challenges. We provide professional DFM (Design for Manufacturability) feedback, material selection advice, and machining strategies to optimize both cost and performance.
With over 10 years of experience in CNC manufacturing, Robotika produces more than 100,000 machined parts annually for customers worldwide. Our capabilities serve a wide range of industries, including automotive, medical devices, electronics, aerospace, and industrial automation. From startups to global OEMs, clients rely on us for flexible production volumes, competitive pricing, and responsive support throughout the product development lifecycle.
Our CNC Machining Capabilities
At Robotika, we offer a comprehensive suite of CNC machining technologies, including CNC milling, CNC turning, turn-mill compound machining, electrical discharge machining (EDM), and wire-cut machining. We work with a wide range of metals and plastics, including aluminum, stainless steel, carbon steel, brass, copper, titanium, POM, ABS, PC, PEEK, and other engineering-grade materials. Additionally, Robotika offers a variety of surface treatment options such as anodizing, powder coating, sandblasting, polishing, electroplating, black oxide, and laser engraving.
We have capabilities for 3, 4, and 5-axis machining to handle both simple and complex geometries with high precision and efficiency.
Our CNC turning equipped with standard and live tooling capabilities for manufacturing cylindrical parts like pins, shafts, and spacers.
Our 5 Axis CNC Machining is equipped with simultaneous multi-axis capabilities, enabling the production of complex, high-precision parts.
Our precision machining delivers ultra-tight tolerances and exceptional surface quality for critical components where accuracy is non-negotiable.
CNC Machining Capabilities
Part Size
2000 mm x 1500 mm x 600 mm
Minimum Wall Thickness
0.8 mm (metals), 1.5 mm (plastics)
Minimum Feature Size
0.5 mm or Ø 0.50 mm
Minimum Cutting Depth
0.3 mm
Cavity Depth
4x width (w)
As Machined Finish
Ra 125 or better
Undercut Width (T-slot)
3-40 mm
Complex Features
We provide curved surfaces, undercuts, deep cavities, grooves, complex contours, asymmetrical features, etc.
Our Latest CNC Machined Products We have Manufactured
Our precision-machined parts produced with tight tolerances, high repeatability, and production-ready quality.
CNC 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 |
- *Robotika 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
Carbon Steel is highly suitable for CNC machining due to its excellent strength, hardness, and machinability. It provides superior wear resistance and dimensional stability, making it ideal for structural and mechanical parts. Common applications include gears, shafts, fixtures, and industrial tooling, where durability and load-bearing capacity are essential.
• Mill Lead Time: As fast as 5 days
• Finishes: Raw, black oxide, zinc plated, polished
Alloy Steel
Alloy Steel is ideal for CNC machining due to its excellent strength, toughness, and wear resistance. It maintains high-dimensional stability even under heavy loads, making it perfect for precision engineering. Common applications include gears, shafts, automotive components, and machine bases that demand both strength and durability.
• Mill Lead Time: As fast as 5 days
• Finishes: Raw, black oxide, zinc plated, polished
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
Finishing Options for CNC Machining
| Name | Applicable Materials | Colors | Application | |
|---|---|---|---|---|
|
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 | — | — |
|
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 Design Guide
In this guide to CNC machining, you’ll learn how to create efficient, manufacturable metal and plastic parts for prototyping and production.
CNC Machining Service FAQs
What CAD type do you accept?
We accept native SolidWorks (.sldprt) and ProE (.prt) files, as well as solid 3D CAD models in IGES (.igs), STEP (.stp), ACIS (.sat), and Parasolid (.x_t or .x_b) formats. .stl files are also supported, but two-dimensional (2D) drawings are not accepted.
How do I get a quote?
Send us CAD files (such as STEP format), and tell us the quantity, material, surface finish, color, or other requirements you need, then we will check and evaluate, and give you a suggestion for the part design and quote you.
Does Robotika offer finishing options and secondary operations?
Yes, our services include a variety of enhanced finishing and secondary processing options, including injection molding, CNC machining, 3D printing, and sheet metal processing.
Who owns the mold?
Our customer! Mold belongs to our customer property, it will only be used to produce plastic parts for you, and handled by you.
Can the mold be modified after the first run?
Yes, if you are not satisfied with T1 samples and want to change some structures, just provide a newly changed CAD file, then we will check again, and tell you some necessary mold modification cost.
Can different parts be made in one mold?
Yes, it is called a family mold. If these parts are the same color, material, it is a good way to reduce the mold cost and make these parts in one mold.
Do you provide First Article Inspection (FAI) services?
Yes, we provide First Article Inspection (FAI) services for machined and molded parts.
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