Brass CNC Machining Services
High-precision brass CNC machining with faster turnaround and lower production costs.
Optimize material selection from C360 to lead-free brass while achieving consistent quality, tight tolerances, and excellent surface finish.
Custom Brass CNC Machining for OEM & Contract Manufacturing
We offer custom CNC machining for brass parts, providing full OEM and contract manufacturing services. Whether you need a rapid machining or large-scale production, our top-notch CNC machines and experienced team make sure your parts are precise, cost-effective, and delivered on time.From complex designs to tight tolerances, we’ve got you covered. Whether it’s one prototype or thousands of parts, we give you flexible, scalable solutions to fit your needs.We work with industries like automotive, medical, and industrial, delivering high-quality, affordable brass components that meet the strictest standards for precision, surface finish, and durability.
What is Brass CNC Machining?
Brass CNC machining is the process of producing precision parts from solid brass using computer-controlled cutting, drilling, and milling based on CAD designs.
Brass is highly machinable, durable, corrosion-resistant, and widely used in plumbing, automotive, electrical, and medical applications. It is ideal for producing both simple and complex geometries with excellent surface quality.
CNC machining enables efficient production of tight-tolerance parts, from single prototypes to high-volume manufacturing.
CNC Machining Brass Material Properties
| Material & Specs | CNC Machining & Application Notes |
| C360 (Free-Cutting Brass)Tensile: 15,000 psi / YieldElongation: 53%Hardness: Rockwell B35Density: 0.307 lb/in³Max Temp: 1650°F | Soft & easy to cut → fast machining, clean chips, smooth surface. Perfect for high-volume precision parts and tight tolerances. |
| C464 (Naval Brass)Tensile: 52,000 psi / YieldElongation: 30%Hardness: Rockwell B50Density: 0.31 lb/in³Max Temp: 1680°F | Stronger & corrosion-resistant → slower cutting, ideal for marine/outdoor applications. Holds tight tolerances in harsh environments. |
| C260 (Cartridge Brass)Tensile: 52,000 psi / YieldElongation: 27%Hardness: Rockwell B50Density: 0.31 lb/in³Max Temp: 1680°F | Highly ductile → great for deep drawing, stamping, and complex shapes. Needs careful machining to prevent deformation. |
| Lead-Free Brass (C932 / C443)Tensile: 45–50,000 psi / YieldElongation: 28–32%Hardness: Rockwell B42–B50Density: 0.31 lb/in³Max Temp: 1670–1680°F | Safe for medical, drinking water, and food-grade applications. Slightly harder than C360 but still machinable; maintains durability and compliance. |
Brass Material Selection Guide
| Brass Grade & Best For | Key Features & Applications |
| C360 (Free-Cutting Brass)High-volume production of small to medium parts |
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| C464 (Naval Brass)Marine and outdoor applications |
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| C260 (Cartridge Brass)Deep-drawn parts and components requiring formability |
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| Lead-Free Brass (C932 / C443)Medical, drinking water, and food-grade applications |
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Advantages of Brass CNC Machining
- Durable & reliable:Good strength, wear resistance, and surface finish
- Easy to machine:Smooth cutting, low tool wear, efficient production
- High precision:Tight tolerances with consistent repeatability
- Corrosion resistant:Long service life with low maintenance
- Heat resistant:Stable performance under elevated temperatures
- Non-sparking:Safe for flammable environments
- Recyclable:Fully recyclable and environmentally friendly
Brass CNC Machining Capabilities
We deliver world-class Brass CNC machining capabilities by integrating cutting-edge tooling technologies with advanced industry processes, providing clients with a one-stop solution from high-fidelity prototypes to full-scale production.
Supported by a team of over 120 experienced CNC specialists and design engineers, we handle complex geometries across aerospace, medical devices, and high-end electronics. Through real-time monitoring and thermal compensation, we maintain tight manufacturing tolerances of ±0.005 mm, ensuring smooth surfaces and consistent dimensional accuracy.
With optimized production scheduling and a closed-loop material recycling system, we fully leverage brass’s excellent machinability, significantly shorten lead times, and control costs, delivering efficient, reliable, and high-precision brass CNC machining.
Production Stability at Scale
Brass machining can be affected by thermal expansion, leading to dimensional drift and inconsistent batch results in many production environments.
At XTPROTO, we use advanced CNC systems with thermal compensation, real-time process monitoring, and calibrated inspection to control variation during machining. Material consistency is also ensured through strict supplier management.This enables stable, repeatable output from prototype to full production—ensuring every part meets the same level of accuracy, reliability, and performance.
Efficient Brass CNC Machining
High-precision brass components often carry high costs due to fluctuating material prices, slow machining cycles, and significant scrap waste, making them a major expense on your BOM and limiting product competitiveness. At XTPROTO, we address these challenges by leveraging brass’s excellent machinability with high-speed, high-feed CNC machining strategies, combined with a 100% closed-loop scrap recovery system and advanced tool-life management, ensuring every cycle is efficient and waste is minimized. By turning material recovery and process optimization into direct cost savings, we provide competitively priced, precision Brass CNC machined parts that maintain strict tolerances and consistent quality, helping you maximize profitability and build a cost-resilient supply chain.
Advanced Brass CNC Techniques
Although brass is relatively easy to machine, it can still experience heat expansion, burr formation, and dimensional drift without proper process control.At XTPROTO, we use high-speed spindles up to 15,000 RPM, sharp carbide tooling, and optimized 5-axis and Swiss CNC workflows to improve cutting stability, reduce burrs, and maintain consistent accuracy. Advanced chip recovery and process control further improve efficiency and material utilization.This enables us to deliver brass components with excellent dimensional stability, superior surface finish, and reduced production cost, ensuring reliable quality at competitive pricing.
Quality Assurance for Brass CNC Machined Parts
- 3D Coordinate Measurement (CMM Inspection):High-accuracy dimensional inspection to ensure parts meet specifications
- Material Certification:Certified material traceability for correct brass grades (e.g., C360, C464)
- Quality System Certification:ISO 9001 compliant process control with full traceability
- Plating Thickness Testing:Verification of coating thickness for plated components
- Surface Roughness Testing:Ensures required surface finish and functional quality
- Pre-Production DFM Analysis:Engineering review to reduce risks and improve manufacturability
Brass CNC Machined Parts We Produced
Why Choose Us for Brass Machining?
Our Factory capability
Our purpose-built facility is designed for high-precision manufacturing, with 500+ skilled employees, including 120 engineers supporting complex projects.
Spanning 160,000 sq ft, we are equipped with advanced CNC machines including 5-axis, Swiss-turn, and multi-axis milling and turning centers, enabling both prototype and high-volume production.
With optimized workflows, automated material handling, and strict quality control from material inspection to final checks, we ensure consistent accuracy, reliable quality, and on-time delivery for complex brass components.
Engineering Expertise
Our manufacturing advantage starts with engineering involvement before machining. With a team of 120+ engineers, we combine advanced CNC capabilities with deep understanding of Brass material behavior.
- Design Optimization:At the start of each project, we perform detailed DFM analysis of your CAD designs, refine geometry to reduce wasted cycles, and support optimal Brass grade selection.
- Process Pre-Control:From chip evacuation in complex housings to thermal expansion control in precision pins, our engineers plan machining strategies early to avoid common manufacturing issues.
- Balanced Efficiency: This ensures stable production with tight accuracy (as low as ±0.005 mm), better efficiency, and optimized cost for reliable brass CNC components.
Precision Brass CNC Machining Processes
CNC Machining
CNC Milling
CNC Turning
Swiss Machining
CNC Drilling
CNC Threading
Tolerances for Brass CNC Machining
| Feature | Standard Requirement | Precision / Maximum |
| Machining Tolerance | ±0.02 mm (ISO 2768-f) | Up to ±0.01 mm* |
| Surface Roughness | Ra 0.8–1.6 μm | Custom finishes available |
| Max Part Size | 1200 × 500 × 300 mm | Up to 1800 x 1000 x 500 mm |
| Min Feature Size | 0.2 mm | 0.50 mm (Material dependent) |
| Thread Standards | Metric, UNC, UNF | Full international compliance |
| Lead Time | Standard 3-5 Days | Fastest: 1 Day |
Surface Finishing Options for Brass Parts
| Finishing | Purpose & Applications |
| Polishing | Improves appearance and surface smoothness; ideal for decorative parts, displays, and visible components. |
| Plating (Nickel, Gold, Silver) | Enhances corrosion resistance, durability, and electrical performance; used for connectors, decorative hardware, and functional components. |
| Chemical Passivation / Oxidation | Prevents tarnishing and oxidation; suitable for parts exposed to air or moisture. |
| Bead Blasting / Grinding | Removes machining marks to create a uniform matte or textured finish; used for industrial or decorative panels. |
| Coating / Painting | Protects natural brass color and prevents corrosion; ideal for display items and decorative hardware. |
| Electroless Plating | Provides uniform protection against wear and corrosion on complex geometries; suitable for precision and functional parts. |
Industries & Applications of CNC Machined Brass
Aerospace & Aviation
Automotive Industry
Electrical & Electronics
Medical Devices
Industrial Equipment
Marine Industry
Frequently Asked Questions
What materials and part sizes can you handle?
What is your precision capability for tight tolerances?
How fast can I get my parts?
Do you support low-volume prototyping or only mass production?
Do you provide finishing and assembly services?
Start Your Brass CNC Project Today
From design to prototype to production, we deliver high-quality brass parts on time and on budget.Let’s make your project a reality. Contact us now to get started!