Custom Machining Parts
Your One-Stop Shop for Custom Machined Parts: From Prototype to Production
Choose from 50+ engineering-grade metals and plastics for our expert turning, milling, and multi-axis machining services. Upload your CAD file to get an instant quote today.
RALLY – Professional CNC Machining Parts Supplier in China
RALLY is a leading CNC machining parts supplier in China, specializing in custom precision components made to your technical specifications. With over 15 years of experience, we leverage advanced 5-axis CNC machining technology and ISO 9001-certified quality control to ensure exceptional accuracy and performance. We achieve ±0.01mm tolerance precision for both prototypes and mass production.
Serving industries such as aerospace, automotive, medical, and electronics, we offer more than 50 material options, including metals, plastics, and composites, to meet diverse manufacturing needs. Our free Design for Manufacturability (DFM) analysis helps optimize your designs, reducing production costs and improving part performance.
By partnering with RALLY, you benefit from up to 40% cost savings compared to Western suppliers, while enjoying 5-7 day rapid turnaround. Our efficient production processes allow us to deliver high-quality parts quickly, without compromising on precision. Whether you need a small batch or large-scale production, RALLY provides the best combination of quality, cost-efficiency, and speed.
Our Services / Capabilities
Precision machining for your custom part needs. We specialize in transforming your ideas into high-quality, precision parts, with a focus on efficiency and tight tolerances. Our expert team uses advanced machinery and techniques to deliver exceptional results, no matter the complexity.
Machining Processes：
-
CNC Milling (3-axis, 4-axis, and 5-axis capabilities)
We have the capability to machine complex surfaces, precision molds, and intricate geometries. Our CNC milling machines handle both small and large parts with remarkable precision. -
CNC Turning
Ideal for producing cylindrical parts, our CNC turning services ensure excellent surface finish and high dimensional accuracy, perfect for applications requiring smooth, tight tolerances. -
Electrical Discharge Machining (EDM)
For high-hardness materials and complex internal cavities, EDM offers unparalleled precision and is an essential process for intricate features. -
Additional Processes
We also offer Grinding, Drilling, and other finishing processes tailored to your part requirements.
Material Selection：
Over 50 materials to choose from, catering to a wide range of industries and applications. Whether you need prototypes or mass production, our material options cover both metals and plastics to meet your exact needs.
-
Metals:
-
Aluminum Alloys (6061, 7075)
-
Stainless Steel (303, 304, 316L)
-
Carbon Steel
-
Copper, Titanium Alloys
Each metal has specific applications based on strength, durability, and weight.
-
-
Plastics:
-
ABS, PC, POM (Delrin)
-
Nylon (PA6, PA66), PEEK
-
Acrylic
These materials are lightweight, corrosion-resistant, and ideal for various industrial applications.
-
Finishing Services：
Enhance the appearance and performance of your parts with our finishing options.
-
Anodizing
Offers improved wear and corrosion resistance, especially for aluminum parts. -
Bead Blasting
Ideal for achieving a matte finish and enhancing surface texture. -
Powder Coating
Adds color and extra durability, ideal for outdoor and heavy-duty applications. -
Plating & Passivation
For improved corrosion resistance, especially in demanding environments. -
Heat Treatment
Increases strength and hardness for metals and alloys.
Our CNC Machining Projects
At RALLY, we have successfully manufactured high-precision CNC machined parts for various industries, including automotive, aerospace, electronics, and medical. Our advanced CNC milling, turning, and Swiss machining capabilities ensure top-quality results for both prototypes and large-scale production. Explore our past projects to see our expertise in precision machining.
Start Your CNC Machining Parts Project
Why Choose Us?
Quality & Precision
“You will receive the highest standards of quality and precision. We strictly adhere to the ISO 9001 Quality Management System and provide full-size inspection reports (FAI), material certificates, and more. Our standard tolerances reach ±0.005 inches (±0.127 mm), with the ability to achieve even tighter precision upon request.”
Fast Lead Times
“You will benefit from fast delivery. With our optimized production processes and robust supply chain, standard parts can be shipped in as little as 3 business days. We understand the urgency of your project timelines and ensure on-time delivery.”
From Prototype to Production
“You will gain complete manufacturing support. Whether you need a single prototype for design validation or tens of thousands of production parts, we can meet your needs and ensure consistent quality throughout each stage.”
Expert Support
“You will have access to expert engineering support. Our team of engineers has extensive Design for Manufacturability (DFM) experience. Before you place an order, we’ll review your design and provide optimization suggestions to help lower costs and improve performance.”
Materials We Machine
Our CNC machined components are trusted by clients across multiple industries that demand precision, reliability, and high-quality performance. No matter your sector, RALLY has the experience and capability to deliver components that meet industry standards and application needs.
Custom Machined Aluminum Parts
We provide professional custom aluminum part machining services, from lightweight 6061 to high-strength 7075 aerospace aluminum. We meet your needs for both lightweight and high-strength components.”
-
Aluminum 6061
- Aluminum 6082
-
Aluminum 7075
-
Aluminum 5052
Custom Machined Brass Parts
Brass is favored for its excellent conductivity and corrosion resistance. We provide precision custom brass parts for the electronics, piping, and decorative industries.
-
Brass C360
-
Brass C377
-
Brass C280
- Brass C385
Custom Machined Plastic Parts
With extensive experience in machining engineering plastics, we can produce a wide range of custom plastic parts, from functional prototypes to final product components. We work with materials including ABS, PC, Nylon, PEEK, and more.
-
ABS
-
Nylon
-
PEEK
-
Delrin (POM)
Custom Machined Bike Parts
We specialize in custom machining services for bicycle components, including frame parts, gears, and custom accessories. Whether you need lightweight or high-strength materials, we deliver precision parts for all types of bikes.
-
Bike Frame Components
-
Gears & Sprockets
-
Custom Bike Accessories
Custom CNC Auto Parts
From engine components to suspension parts, we provide high-quality custom machined car parts designed to meet the performance and durability standards of the automotive industry.
-
Engine Components
-
Transmission Parts
-
Suspension Parts
Custom Machined Motorcycle Parts
Our custom machined motorcycle parts include everything from engine components to decorative elements, all made with precision and tailored to meet your specific needs.
-
Engine Parts
-
Exhaust Systems
-
Custom Motorcycle Accessories
Industries We Serve
We have extensive experience serving a wide range of industries. No matter your sector, our expertise ensures you receive the highest-quality machined parts for your specific needs.
Aerospace
“We specialize in producing precision components for the aerospace industry, where safety, performance, and durability are paramount. Our machined parts meet strict industry standards to ensure reliability in flight.”
Medical
“From surgical instruments to medical device components, we offer precision machining services that meet regulatory standards like ISO 13485. Our parts help drive innovation and improve patient outcomes.”
Automotive
“We provide high-performance components for the automotive industry, including parts for engines, transmissions, and electronic systems. Our parts are designed to handle the demanding conditions of modern vehicles.”
Robotics & Automation
“Parts for robotics and automation require precision and reliability. We manufacture custom components that power robotic systems, ensuring they perform with accuracy and efficiency.”
Consumer Electronics
“We supply precision components for consumer electronics, including enclosures, connectors, and precision parts for mobile devices, wearables, and more. Our parts are designed for durability and high performance.”
Industrial
“Our custom machined parts serve various industrial applications, from manufacturing machinery to equipment parts. We provide high-quality, durable components that support efficiency in production environments.”
Start Your CNC Machining Project
1️⃣ Send Your Specifications – Provide dimensions, material, frequency range
2️⃣ Get a Quote & Approval – Receive a detailed quotation & confirm your order
3️⃣ Manufacturing & Delivery – CNC machining, quality testing & global shipping
General Questions:
Other Products You May Like
Aluminum Parts
Brass Components
Copper Parts
Plastic Parts
Request a Quote
Looking for a custom solution? Our quote request process is straightforward and accessible.
Simply fill out our online form with your project details, and a member of our team will get back to you promptly to discuss your project in detail and provide a comprehensive quote.
English 
German 
Portuguese 
French 
Polish 
Spanish 
Italian