CNC Milling Services

Reliable on-demand CNC milling services for rapid prototypes and production parts. Get top-notch custom milled parts from various high-quality metals and plastics at competitive prices.

Robust CNC Milling Service

Effectively bring your products to market faster with a reliable CNC milling company. From rapid prototyping to custom production runs, take advantage of quality 3-axis, 4-axis, and full 5-axis CNC milling for highly accurate and quality CNC milling products. RapidDirect offers quality CNC milling services to help transform your designs into complex geometric shapes. Take control of your CNC milling projects by working with our in-house machining team and receive custom parts that meet your strict requirements.

3 Axis CNC Milling

A profitable and efficient solution to your CNC milling needs! We ensure the machining of parts with complex geometrical shapes, including undercut features, threaded holes, sharp edges, and planar profiles. Complete multiple operations through effective integration with an automatic tool changer. We can also design 3-axis milling centers to meet the unique requirements of each client.

4 Axis CNC Milling

Get more complex CNC milled parts with our 4-axis CNC milling. We consistently produce precise and accurate results, with greater control and more flexibility, even with complex shapes. Ensure cost-effective machining of angled features that are rather impossible with 3-axis machines. With more power, greater control, and higher precision, 4-axis milling is your ideal solution.

5 Axis CNC Milling

Machine complex custom CNC milled parts with a single setup. Our 5-axis CNC milling machines save time, improve efficiency, and reduce cost, ensuring that you meet market demands faster and cost-effectively. We can reach higher cutting speeds without excessive pressure on the cutter. Get rapid prototypes and low-volume production parts with better surface finishes.

Why Choose Us for CNC Milling Service

At RapidDirect, we are committed to helping you reach your manufacturing goals. We constantly strive for effective solutions through our progressive technological approaches and machining techniques. Our CNC milling services ensure you get highly precise prototypes and production parts with superior quality.

Quote in Seconds, Operate at Your Fingertips

Upload your design and experience smart CNC milling quotes in seconds and all-in-one management for rapid and digital manufacturing without hesitation.

Instant Quotation

Get instant CNC quotes in a minute by simply uploading your design files. Our big data quoting engine calculates CNC machining quotes instantly and provides you with competitive prices.

DFM Feedback

Our platform built with an advanced machine learning algorithm can automatically identify part geometry that may be difficult to machine. Give you a comprehensive design-for-manufacturing analysis for your custom CNC parts within minutes.

All-in-one order Management

Quickly check, search, and manage all your CNC orders in one place. What's even better is that you get visibility into all stages of the production process and every aspect of the manufacturing operation.

From CNC Prototyping to Production

CNC machining is a computerized and versatile manufacturing process ideal for rapid prototyping and on demand production. Here are the custom CNC services available at the RapidDirect.

Rapid Prototyping

With our instant quotation platform and strong capacity, you can get excepted prototypes in short lead times. This allows you to quickly test prototype parts and get them to market.

Bridge Production

Bridge-to-production is critical for closing the gap between the part design and the actual product rollout. No worries. Our professional engineering team is always ready to provide practical design suggestions for your low volume machined parts.

On-Demand Production

Our full service for on-demand production orders ensures that you get high precison and high standard of quality products. Enhanced production rate also allows for just-in-time delivery of production parts.

Let's Start A New Project Today

CNC Milling Tolerances

RapidDirect offers a range of CNC machining tolerances to suit your unique design requirements, including GD&T callouts. Based on your part’s geometry and chosen material, we can accommodate standard thread sizes, machine custom treads, and reach tolerances of up to ±0.001”. Our standard tolerances for CNC milled metals are ISO 2768-m and ISO 2768-c for plastics.

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

Materials for CNC Milling Parts

Depending on your applications, our CNC milling process is compatible with an extensive range of materials. We stock over 30 production-grade metal alloys for producing various CNC milled parts for different industries. In addition to metals, RapidDirect’s high-precision CNC milling service is also compatible with many plastic materials. Check out some of the widely used materials for CNC milling parts.

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Aluminum
Copper
Brass
Stainless Steel
Titanium
Plastics

Plastics are also very popular option for CNC machining because of its wide choices, relatively lower price, and significantly faster machining time needed. We provide all common plastics for CNC machining services.

POM	PEEK	HDPE	PET
Nylon	PTFE	PVC	PP
ABS	PC	PMMA

More Details>>

Surface Finishes for CNC Milling

Gain access to quality surface finishing for custom CNC milling parts to remove aesthetic flaws and improve the appearance of your products. We also provide rigid protection and additional resistance and strength to your parts through superior surface finishes.

Name

Description

Materials

Color

Texture

Link

Anodizing	Anodizing improves corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface. Widely used in mechanical parts, aircraft, and automobile parts, precision instruments, etc.	Aluminum	Clear, black, grey, red, blue, gold.	Smooth, matte finish.	Learn More>>
Bead Blasting	Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.	ABS, Aluminum, Brass, Stainless Steel, Steel	n/a	Matte	Learn More>>
Powder Coating	Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light.	Aluminum, Stainless Steel, Steel	Black, any RAL code or Pantone number	Gloss or semi-gloss	Learn More>>
Electroplating	Electroplating can be functional, decorative or corrosion-related. Many industries use the process, including the automotive sector, in which chrome-plating of steel automobile parts is common.	Aluminum, steel, stainless steel	n/a	Smooth, glossy finish	Learn More>>
Polishing	Polishing is the process of creating a smooth and shiny surface, either through physical rubbing of the part or by chemical interference. The process produces a surface with significant specular reflection, but in some materials is able to reduce diffuse reflection.	Aluminum, Brass, Stainless Steel, Steel	n/a	Glossy	Learn More>>
Brushing	Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes.	ABS, Aluminum, Brass, Stainless Steel, Steel	n/a	satin	Learn More>>

Ultimate Guide to CNC Machining

The comprehensive guide provides you with the basics, design considerations, materials, surface finish, cost, and more about CNC machining to help you create quality machined parts with aesthetic appearance.

Download it now

Gallery of CNC Milling Parts

Check out our extensive gallery that shows precision milled prototypes and parts from our valued customers.

See What Our Customers Say About Us

A customer’s words have a more substantial impact than a company’s claims – and see what our satisfied customers have said regarding how we fulfilled their requirements.

From the instant and accurate quotation to production process to the timely delivery of parts, RapidDirect responded to our demands with complete professionalism. They handled every aspect of this CNC machining project quickly and cost-effectively. We will surely work with them again in the future.

Mark Alford

– Chief Engineer

RapidDirect has been our quality supplier of CNC machined parts. Fast delivery is very important for our business, and RapidDirect always offers short lead time and competitive pricing. Andy responds fast to all our emails and questions. This has improved our working relationship, and we continue to value this partnership.

Piscary Herskovic

– Product Designer

Hi, Fiona. I’d like to thank you and everybody at RapidDirect for contributing to the great service we received. You constantly handle our difficult CNC machining projects, and offer instant quotation and free DFM analysis for the part design. Best of all, you show superior quality in short lead times. Our department supervisor confirmed that you will continue making these parts now. The quality is outstanding!

Luc Szorc

– Mechanical Engineer

Our small R&D group requires high precision CNC machined parts within short periods. RapidDirect consistently delivers these parts at great values and quick turnarounds. The reliability of this company places them above our other part suppliers.

Kayne Espinosa

– Project Manager

We asked RapidDirect to fabricate parts for a critical supplier demo, and you came through with a short lead time. Your work is always high quality, and we are grateful for your precision in machining components. The help in checking our designs and material selection has also saved our company from making expensive errors. We look forward to doing future projects with you guys.

Hari Mackenzie

Our horizontal milling machines perform 4-axis milling and are suitable for heavy milling operations. Our multi-axis milling machines can move along different axes and cut at various angles. They include 2-, 3-, 4-, and 5-axis CNC milling machines.

2. Can I combine CNC milling with 3D Printing?

Yes, you can combine both manufacturing processes to reinforce your custom parts. Printed parts can be milled to achieve dimensions with tight tolerances or to meet surface quality requirements. Intelligently combining these two methods can ensure faster manufacturing, less waste, and lower costs. It even achieves higher accuracy and precision, repeatability, and sustainable production.

3. What are your CNC milling capabilities?

At RapidDirect, we can produce highly complex and intricate rapid prototypes and low-volume production parts. The CNC milling process is suitable for a wide selection of materials for various applications. Our CNC milling service can achieve standard tolerances of +/- 0.05mm. However, tighter tolerances of up to +/- 0.01mm are also possible.

4. What’s the difference between CNC milling and CNC lathe?

The major difference between CNC milling and CNC lathe is in their machining process. CNC milling involves rotating the cutting tools against a stationary bar stock or workpiece. In contrast, a CNC lather works by rotating the bar stock or workpiece against a stationary tool. CNC milling is more suitable for machining irregular and flat surfaces, while CNC lathes work best for cylindrical or conical parts.

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Aluminum

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