YUANYI CNC
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Brass CNC Machining Services

Precision brass CNC machining services for custom prototypes and production parts. YUANYI machine C360, C260, C464 and other brass alloys using CNC milling, turning, Swiss machining and mill-turn processes.

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Our Brass CNC Machining Services

We provide brass CNC machining services for prototypes, low-volume production and precision custom parts. Our capabilities include CNC milling, turning, Swiss machining and mill-turn machining for a wide range of brass components.

Brass CNC milling for precision custom parts

CNC Milling

Suitable for brass parts with pockets, holes, slots, threads and multi-side features. Typical milling tolerances can reach ±0.005 mm for precision components.

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Brass CNC turning for shafts fittings and threaded parts

CNC Turning

Ideal for shafts, bushings, fittings, sleeves, nozzles and threaded brass parts. Turning tolerances can typically reach ±0.005 mm, depending on part geometry and feature size.

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Swiss machining for small precision brass components

Swiss Machining

Designed for small, slender and high-precision brass components such as pins, connectors and miniature shafts. Swiss machining tolerances can reach ±0.003 mm for suitable features.

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Mill-turn machining for complex custom brass parts

Mill-Turn Machining

Combines turning and milling in one setup for complex custom brass parts, helping reduce secondary operations, setup errors and overall lead time while maintaining consistent dimensional accuracy.

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Brass Materials & Grades We Machine

We machine a range of brass alloys for precision CNC parts, from free-machining grades to corrosion-resistant and lead-free options. Material selection can be based on machinability, strength, conductivity and application requirements.

Brass GradeKey CharacteristicsTypical Applications
C360 BrassExcellent machinability, good strength and corrosion resistanceFittings, valves, connectors, bushings and threaded parts
C260 BrassGood ductility, formability and corrosion resistanceElectrical parts, terminals, hardware and decorative components
C464 BrassGood strength and excellent seawater corrosion resistanceMarine fittings, fasteners and fluid-handling components
Lead-Free BrassLower lead content for regulated or environmentally sensitive applicationsPlumbing parts, valves, fittings and fluid-control components

Not Sure Which Brass Grade to Choose?

Send us your drawing and application requirements. Our engineering team can help recommend a suitable brass material based on machinability, strength, conductivity and corrosion resistance.

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Brass CNC Machining Capabilities & Specifications

Our brass CNC machining capabilities support prototypes, low-volume production and precision production parts. The table below shows our typical machining range and quality capabilities.

FeatureTypical Capability
Max Part Size (X/Y/Z)Up to 2300 × 1500 × 600 mm
Minimum Feature SizeDown to Ø1 mm
Minimum Wall ThicknessDown to 0.25 mm, depending on part geometry
ToleranceDown to ±0.003 mm for suitable features
Surface FinishTypically Ra 0.4–3.2 μm
Rapid Prototype Lead TimeAs fast as 3 working days
Production VolumePrototypes, low-volume production and repeat production
Machine TypesGantry CNC, 3-axis, 4-axis, 5-axis, mill-turn, Swiss-type CNC and CNC turning
Brass GradesC360, C353, C260, C464 and other brass alloys
InspectionCMM, VMM, micrometers, gauges and surface roughness testing
Quality DocumentsFAI, dimensional inspection reports and material certificates available

Custom Brass Parts We Machine

Brass CNC machined control knob with knurled edge
Brass CNC machined valve body with milled ports
Brass CNC machined pipe fitting with smooth threads
Brass CNC machined electrical connector with tapped holes
Brass CNC machined bushing with reamed inner bore

Brass CNC Machining Applications by Industry

Our brass CNC machining services support a wide range of industries where precision, corrosion resistance, conductivity and reliable machining performance are important.

Automation

Brass is commonly used for fittings, bushings, valve components and threaded parts in automated equipment and control systems.
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Automotive Applications

Suitable for precision fittings, sensor components, bushings, connectors and small mechanical parts used in automotive systems.
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Semi-Conductor

Precision brass parts can be used for connectors, small hardware and conductive components in semiconductor equipment.
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Consumer Electronics

Common applications include electrical contacts, terminals, threaded inserts, connectors and small precision brass components.
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Machinery

Brass is widely used for bushings, sleeves, couplings, fittings and other wear-resistant or low-friction machine components.
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What is Brass CNC Machining?

Brass CNC machining covers free-machining and structural brasses (e.g., C360, C353, C260, C464). Brass cuts cleanly, holds tight tolerances, and is ideal for connectors, valves, gears, and aesthetic parts thanks to its smooth finish.

  • Tooling: Sharp carbide/HSS with positive rake; polished flutes reduce built-up edge.
  • Chip control: Consistent chip load; use chip-breakers on turning to avoid long strings.
  • Coolant: Often optional; mist or light flood helps finish and tool life on long cycles.
  • Finishing: Easy deburr; supports plating, passivation, polishing, and engraving.
Brass CNC machining overview with polished carbide tools
Brass machinability and surface finish considerations

Key Considerations

Brass machines fast with minimal heat—great for short cycle times. Use higher SFM than steels, maintain steady feeds to prevent rubbing, and choose fine-edge tools for clean edges. For show-face parts, plan a light finish pass and gentle deburr/polish.

Avoid overly aggressive clamping on thin walls; brass can deform. For threads, form taps or sharp cut taps keep crests crisp.

Brass Grades

Common grades for fast machining and clean cosmetic finishes. Need a special spec? Contact us.

C360 brass free-machining turned fittings (3:2)

C360 (Free-Machining)

  • Excellent machinability; bright finish
  • Ideal for high-volume turned parts
  • Threads and knurls form cleanly
  • Common for connectors and fittings

Run high SFM with sharp tools; minimal coolant often sufficient.

C353 eco/low-lead brass precision parts (3:2)

C353 (Eco/Low-Lead)

  • Lead-reduced alternative to C360
  • Good machinability; RoHS-friendly
  • Plumbing, electronics, consumer
  • Polishes well for cosmetics

Similar parameters to C360; tune SFM/feeds per bar lot.

C260 cartridge brass machined bracket (3:2)

C260 (Cartridge)

  • Higher ductility; good formability
  • Slightly lower machinability vs C360
  • Decorative, architectural, hardware
  • Takes polish and plating well

Use sharp tools and light finish passes for cosmetic faces.

C464 naval brass corrosion-resistant valve body (3:2)

C464 (Naval)

  • Excellent seawater corrosion resistance
  • Good strength; bearings, marine fittings
  • Machines cleanly with sharp edges
  • Often used for valves and hardware

Keep chip load steady; polish or passivate per spec.

Brass CNC Machining FAQs

No. We support one-off prototypes, low-volume production and repeat orders, so you can start with a small quantity before moving into larger production.

Yes. We can produce prototype or sample parts first for dimensional, fit and functional verification before larger production runs.

Parts can be inspected using CMM, VMM, micrometers, gauges and other measuring equipment. Dimensional reports, FAI and material certificates can also be provided when required.

Yes. Send us your drawing and application requirements, and our engineering team can recommend a suitable brass grade based on machinability, corrosion resistance, conductivity and cost.

Yes. We support international orders and can package parts securely for overseas shipment.

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