CNC Milling Services
From prototyping to series production. We use 3-axis, 3+2-axis and full 5-axis milling centers to produce high-precision and high-quality parts to meet your most stringent requirements.
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Our Service
We provide high-precision and efficient parts processing solutions with high-precision 3-axis, 4-axis and 5-axis CNC milling machines and a professional team with more than 20 years of experience.
We can process complex 2D and 3D features, including planes, slots, holes, curved surfaces, etc., with tolerance accuracy up to ±0.01mm, and support a variety of metal and plastic materials. Whether it is a single prototype or mass production, we can deliver quickly to meet the needs of multiple industries such as automotive, aerospace, medical devices, consumer electronics, etc., while providing a variety of surface treatment options to ensure the perfect combination of part performance and appearance. Contact us now for a free quote.
Gallery of CNC Milled Parts
How can we help you?
Types of CNC Milling
Why Choose us ？
We want to help you achieve your manufacturing goals at Rapid Protos. We always try to find good solutions by using the latest technology and approach to things. Our CNC milling services ensure your prototypes and production parts are accurate and high quality.
Rapid Turnaround
RPS can produce high precision, fast-turn parts in as little as 3 days using our CNC milling machines. We can also provide instant quotes on CNC machined parts, shortening your RFQ process.
Tight Tolerances
Flexible Processing
CNC milling is ideal for prototypes and low-volume production parts. RPS’s 60+ CNC equipments can help you scale from the testing phase to a production run of 100,000 parts or more.
Excellent Customer Service
Provide full tracking service from consultation to delivery to ensure that every customer’s question can be answered in time and every demand can be accurately met.
Quality Assurance
We are ISO9001, IATF16949, ISO13485 certified and equipped with professional testing equipment to ensure the quality and consistency of each part.
Factory Direct Price
We use our own equipment directly in production, without any price difference from middlemen, and we offer factory prices.
What is CNC Milling Service ?
CNC milling service is a service that uses computer numerical control (CNC) technology to control milling machines for precision machining. It uses milling machines with multiple adjustable tools to cut various metal and plastic materials to produce parts with complex geometries and high precision requirements. CNC milling can operate in multiple directions simultaneously, supports 3-axis, 4-axis and even 5-axis machining, and can process multiple features such as planes, holes, slots, curved surfaces, etc. This service is widely used in industries such as automotive, aviation, medical, and electronics, and is suitable for prototyping, small batch production, and large-scale manufacturing.
How CNC Milling Machine Works?
A 3-axis milling machine consists of 3 free-moving spindle systems (X, Y, and Z). In 3-axis milling, the workpiece remains fixed and the tool rotates along the x, y, and z axes according to the NC machining program path compiled from the 3D graphics. Perform feed cutting. At the same time, most newer milling machines can accommodate two additional axes, 4-axis CNC machining and 5-axis CNC machining are more versatile, and they are often used for the production of high-precision and complex parts.
Creating the features described above requires various milling operations:
- Surface milling
- Face milling
- Angle milling
- Form milling
- Profile milling
- Gear milling etc.
Our CNC Milling Service Capabilities
With our professional technology and rich experience, we are able to provide customers with high-quality and reliable CNC milling solutions to meet the needs of various industries for precision parts.
High-precision machining
Our CNC milling service can achieve high precision of ±0.01mm, ensuring that the size and shape of the parts fully meet the design requirements.
Multi-axis machining capabilities
We provide 3-axis, 4-axis and 5-axis CNC milling processing, capable of machining complex 3D features and multi-faceted parts to meet the needs of different projects.
Complex part machining capabilities
We can process a variety of complex parts, including holes, slots, curved surfaces, bevels and spiral features, etc., to meet the needs of various precision parts.
Efficient delivery cycle
With advanced equipment and efficient production processes, we are able to complete processing in a short time and provide timely delivery services to meet the needs of rapid prototyping and small batch production.
Tolerances for CNC Milling Parts
Rapid Protos offers different CNC machining tolerances, such as GD&T callouts, so that your design can be made to fit your needs. We can make standard thread sizes, custom threads, and reach tolerances of 0.001″ depending on the shape of your part and the material you choose. The standard for CNC-milled metals is ISO 2768-m, and the standard for CNC-milled plastics is ISO 2768-c.
| Type | Tolerance |
|---|---|
| Linear dimension | +/- 0.025 mm (+/- 0.001 inch) |
| Hole diameters (not reamed) | +/- 0.025 mm （+/- 0.001 inch） |
| Shaft diameters | +/- 0.025 mm （+/- 0.001 inch） |
| Part size limit | 950 * 550 * 480 mm （37.0 * 21.5 * 18.5 inch） |
Available Materials for CNC Milling Parts
Our CNC milling processes can process a wide range of metal and plastic materials to suit your needs, including metals such as aluminum, steel, stainless steel, brass, titanium alloys, and engineered plastics such as ABS, POM, nylon, and PEEK. We stock over 30 production-grade metal alloy materials that can be used to manufacture a wide range of CNC milled parts for a variety of industries.
Surface Finish Options
After the parts are processed, the surface treatment is carried out to form a unique surface layer to meet the hardness, corrosion resistance, and appearance requirements of the product. The choice of surface treatment depends on the material properties and application of the part. RPS offers the following surface treatment options for CNC-machined metal parts:
Anodizing can improve the corrosion resistance of aluminum alloys, increase the surface hardness and wear resistance, and have a good appearance after the coloring surface treatment.
Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike traditional liquid paint, which is applied with an evaporating solvent, powder coating is typically applied electrostatically and cured with heat or ultraviolet light.
Black oxide, or blackening, is a conversion coating for ferrous metals, stainless steel, copper and copper-based alloys, zinc, powdered metals, and silver solder. It produces an oxide film on the metal surface to add modest corrosion resistance, improve appearance, and reduce light reflection. Black oxide must be treated with oil or wax to provide maximum corrosion resistance.
Bead blasting produces a smooth, matte-textured surface, and sharp edges can be broken and deburred for safe handling. Bead blasting can also improve the mechanical strength, wear resistance and corrosion resistance of parts.
Electroplating is the process of coating an object in a layer of metal using electrodeposition. Electroplating is widely used to improve the surface qualities of metals, such as resistance to abrasion and corrosion, lubricity, reflectivity, and electrical conductivity. Electroplating can also make metals look better.
Polishing is a technique for creating a smooth and shiny surface by rubbing it or applying a chemical treatment. The process creates a surface with significant specular reflection, but it can also reduce diffuse reflection in some materials.
Brushing is a surface treatment process in which an abrasive belt is used to draw marks and lines on the surface of products to achieve a decorative texture.
Accurate Quotes at No Additional Cost
Rapid Protos can help you with accurate ordering and manufacturing processes through its in-house, self-developed quotation assistance system and engineers with more than ten years of drawing review experience for DFM analysis and manufacturing cost calculations. And provide the cheapest and fastest manufacturing process feasible solution.
FAQ
Application
CNC milling services are widely used in many industries such as automobiles, aerospace, medical equipment, industrial equipment, consumer electronics, robotics and mold manufacturing. Through high-precision processing technology, CNC milling can manufacture complex parts, precision components and functional components to meet the needs of various industries for high quality, durability and customization, thereby supporting product research and development, prototyping, small batch production and large-scale manufacturing.
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