Professional Custom CNC Aluminum Prototype - RALLY
At RALLY, we have been mastering the precision art of CNC aluminum prototyping for over 15 years. By combining cutting-edge technology with exquisite craftsmanship, we continue to produce prototypes that are built to last and built with exquisite detail. Each product is the embodiment of our unwavering commitment to sculpting from the finest aluminum.
In addition, our products are exported to more than 40 countries around the world, earning us a wide range of trust that is a testament to our relentless pursuit of excellence.Equipped with state-of-the-art CNC machines ranging from 3-axis to 5-axis, RALLY is capable of breathing life into even the most intricate designs. So choosing RALLY means being part of an ecosystem of innovation, efficiency and attention to detail that harmoniously blend together to elegantly realize the masterpiece you envision.

Why choose RALLY Custom CNC Aluminum Prototypes?
State-of-the-art machinery: Leveraging an arsenal of 48 sets of advanced CNC machines, which range from 3-axis to 5-axis, we're superbly equipped to transform raw materials into finely crafted components. Consequently, we ensure unmatched precision at every turn.
Simplicity: Rooted in our expertise, no shape is too complex and no design too intricate for us to handle. At RALLY, we seamlessly embrace challenges, and as a result, we turn every complicated blueprint into a tangible masterpiece with unparalleled ease and finesse.
Just-in-time delivery: At RALLY, we don't merely craft perfection; instead, we do it with a sense of urgency. Thus, you can realize your unique vision and expect it to be delivered to your doorstep in an astonishing 3-7 days.
Globally Trusted: In the machining world, our reputation clearly precedes us. As evidence of our excellence, we're proudly serving an expansive and continually growing clientele across North America, Europe, and South America. Consequently, RALLY has emerged as a beacon of trust, quality, and unparalleled service in the industry.


Our Equipments
Having honed our skills in CNC machining for 18 years, we've not only amassed expertise but also expanded our equipment inventory significantly. At the heart of our operations, we proudly boast 50 CNC machining centers. In addition, complementing these are our 20 sets of CNC lathes. Furthermore, to ensure versatility in our services, we have invested in 10 sets of 4-axis linkage machining centers. Not stopping there, we've also incorporated 4 sets of 5-axis linkage machining centers. Lastly, our arsenal is completed with 10 sets of Citizen walking centers, underscoring our commitment to precision and excellence.








Aluminum CNC Prototyping Product Display
Delving into the realm of Aluminum CNC Prototyping, our showcase features impeccable craftsmanship and precision. Beginning with raw aluminum, our transformative process culminates in intricate designs that embody excellence. Consequently, each piece stands as a testament to our meticulous attention to detail, spotlighting our unparalleled expertise in the industry.








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Material Grades For CNC Aluminum Prototyping
Starting with the basics, aluminum is a popular metal for prototyping, largely due to its unique combination of beneficial properties such as strength, lightweight nature, conductivity, and resistance to corrosion. Delving deeper, different alloys provide various properties, each tailored for specific applications. To give you a clearer picture, here are some commonly used types of aluminum for prototyping:
Aluminum 6061
Its great weldability, strength, and resistance to corrosion make it ideal for a wide variety of applications, including automotive parts, aircraft components, and bicycle frames.
Aluminum 2024
With excellent fatigue resistance and a high strength-to-weight ratio, 2024 is predominantly used in aerospace applications, such as fuselage structures and aircraft skins.
Aluminum 7075
Known for its superb strength-to-weight ratio, 7075 is often used in applications where high strength is essential, such as aircraft wings, aerospace components, and rock-climbing equipment.
Aluminum 5052
This alloy has good corrosion resistance, especially in saltwater environments. It’s often used for marine components, electronic enclosures, and some architectural applications.


Aluminum 5083
Recognized for its high resistance to corrosion, especially in marine environments, 5083 is frequently used for shipbuilding and other marine applications.
Aluminum 3003
This is a general-purpose alloy with moderate strength and good workability. It's used mainly for drawn and formed parts in the automotive and container industries.
Surface Finish for CNC Aluminum Prototyping
Diving into details, choosing the right finish not only enhances the appearance but also improves wear and corrosion resistance, while ensuring better adhesion for paints and coatings. To guide you through the selection process, here are some common surface finishes for CNC aluminum prototyping:
1. Anodizing:
One of the most popular finishes for aluminum, anodizing provides a hard, wear-resistant layer on the surface. It can be done in various colors, enhancing the prototype's appearance. Anodizing also improves corrosion resistance.
2. Bead Blasting:
This process uses bead-shaped media to create a smooth matte surface. It's primarily for aesthetic purposes and to provide a uniform appearance.

3. Powder Coating:
A dry finishing process that creates a hard, protective layer on the prototype. Available in a wide range of colors, it provides both aesthetic appeal and additional protection against wear and tear.
4. Polishing:
Producing a reflective, mirror-like finish, polishing enhances the prototype's appearance. It's often used for prototypes that require a high-end look.
5. Brushed Finish:
This finish creates a uniform, parallel grain surface that can help in hiding machining marks. It offers an aesthetic appeal and is often followed by anodizing.
7. Laser Etching:
While not strictly a finish, laser etching can be used to mark the aluminum prototype with serial numbers, logos, or other essential information without affecting the part's integrity.
9. Painting:
Like powder coating, painting provides a colored finish. However, it's a wet process and often requires a primer and a top coat. It's essential to prepare the aluminum surface properly to ensure paint adhesion.
6. Chromate Coating:
A protective layer is formed on the aluminum surface, improving corrosion resistance and providing a good base for paint or adhesive bonding.
8. Electroplating:
Electroplating can be used to deposit a thin layer of another metal (like chrome or nickel) onto the aluminum prototype. It can improve wear resistance, reduce friction, and provide a shiny appearance.
10. Passivation:
This process enhances the natural oxide layer on the aluminum surface, improving its corrosion resistance.
When selecting a surface finish for CNC aluminum prototyping, it's essential to consider the intended use of the prototype, environmental conditions it might be exposed to, and the desired aesthetic appeal. Combining finishes (like brushing followed by anodizing) can often achieve both functional and aesthetic requirements. .
What Our Partners Say About Us
Lead Product Designer
Alex Thompson
"RALLY's CNC aluminum prototyping service is second to none. The precision and attention to detail ensured that our design was brought to life flawlessly. Truly impressive!"
Head of R&D
Maria Gonzales
"Having worked with several CNC service providers, RALLY stands out. Their just-in-time delivery and commitment to quality are genuinely remarkable. Highly recommended!"
Mechanical Engineer
Sarah Mitchell
"What I value most about RALLY is their consultative approach. They don't just machine parts; they provide insights and suggestions to enhance our designs, ensuring optimal functionality."
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