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High Precision Industrial OEM CNC Copper Parts Brass Turned And Milled Parts

High Precision Industrial OEM CNC Copper Parts Brass Turned And Milled Parts

Brand Name: Vigorous
Moq: 1 Piece
Price: Negotiable
Payment Terms: T/T,L/C
Supply Ability: 500–2000 pcs/month
Detail Information
Place of Origin:
China
Dimensional Tolerance:
±0.003mm - ±0.02mm
Surface Roughness:
Ra 0.4 - Ra 3.2 (customizable)
Max Turning Diameter:
Up To Ø200mm
Max Machining Length:
Up To 500mm
Tolerance Grade:
IT5 - IT7 (standard), IT4 Available
Thread Standards:
Metric, UNC, UNF, BSP, NPT, G Thread
Packaging Details:
Standard packaging uses corrugated cartons. For heavy single items or large-volume sea freight orders, fumigation-free plywood wooden cases are applied. Each precision machined part is individually wrapped with bubble wrap or EPE foam to protect against sc
Supply Ability:
500–2000 pcs/month
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Product Description
Custom OEM High Precision Industrial Brass CNC Turned and Milled Parts
Product Overview

Our brass CNC precision parts are custom manufactured through integrated turning and milling processes, delivering high dimensional accuracy and excellent surface finish for industries that demand corrosion resistance, electrical conductivity and reliable machinability.

By completing both rotary and prismatic features in a single clamping setup, we eliminate positioning errors caused by secondary fixturing, ensuring consistent concentricity and geometric alignment across every feature. We work with standard and lead-free brass alloys, supporting everything from single-piece prototypes to high-volume production runs for global OEM clients.

Custom Parameter Table
Parameter Item Specification Details
Machining Process CNC Turning + CNC Milling Composite Machining
Dimensional Tolerance ±0.003mm - ±0.02mm
Surface Roughness Ra 0.4 - Ra 3.2 (customizable)
Brass Materials C36000, C37700, C26800, C28000, Lead Free Brass
Surface Treatment Polishing, Nickel Plating, Chrome Plating, Passivation, Sandblasting
Max Turning Diameter Up to Ø200mm
Max Machining Length Up to 500mm
Inspection Equipment CMM, Micrometer, Caliper, Roughness Tester, Thread Gauge
Service Type OEM / ODM / Custom Drawing
MOQ 1 piece for prototype, bulk orders supported
Product Details

These brass precision components integrate turned features — including outer diameters, internal bores, threads, tapers and seal grooves — with milled features such as flat sides, keyways, cross holes, index slots and mounting faces. All operations are completed in one setup to guarantee perfect alignment between all functional surfaces.

Brass offers outstanding machinability, natural corrosion resistance and excellent electrical and thermal conductivity, making it an ideal material for fluid control, electrical connection and decorative precision parts. Every part undergoes full deburring and edge breaking, with smooth surfaces free of tool marks, burrs or sharp edges.

We accept 2D drawings, 3D models and physical samples for replication. Our engineering team provides DFM feedback specific to brass machining to optimize part geometry, reduce production cost and shorten lead time while preserving material performance.

Product Specifications
  • Tolerance Grade: IT5 - IT7 (standard), IT4 available for ultra-precision features
  • Thread Standards: Metric, UNC, UNF, BSP, NPT, G thread (per drawing)
  • Material Certificates: RoHS, REACH, lead-free certification available upon request
  • Secondary Operations: Tapping, reaming, knurling, crimping, assembly
  • Marking: Laser engraving, part number, logo (optional)
  • Packaging: Anti-tarnish paper, bubble wrap, export carton / wooden case
  • Lead Time: 3-5 days (prototype), 7-20 days (mass production)
Key Features
  • Single-setup compound machining for complex brass parts with both rotary and prismatic features
  • Micron-level tolerance control for precise fit and interchangeability in assemblies
  • Wide selection of brass alloys including lead-free options for drinking water and food contact
  • Natural corrosion resistance and excellent electrical/thermal conductivity of brass material
  • Smooth burr-free surfaces with customizable decorative and functional surface finishes
Product Advantages
Superior Material Performance

Brass provides excellent corrosion resistance, high electrical conductivity and good formability. It is also non-magnetic and easy to polish, making it suitable for decorative, electrical and plumbing applications.

Consistent Geometric Accuracy

One-time clamping eliminates repositioning errors between turning and milling operations. Concentricity, perpendicularity and positional accuracy are maintained at micron levels across every production batch.

Optimized for Brass Machining

Our processes are tuned for brass material to minimize tool wear, reduce cycle time and deliver excellent surface finish without burrs, even for complex internal features and fine threads.

Flexible Order Scaling

We support single-piece prototypes for design validation, small-batch runs for field testing, and high-volume production — all with the same quality standards and dimensional consistency.

Full Quality Traceability

All parts undergo in-process and final inspection with calibrated equipment. Material certificates and inspection reports are available upon request to meet your quality system requirements.

Application Scenarios
  • Fluid Control: Valve bodies, cartridge valves, plumbing fittings, pneumatic connectors
  • Electrical Industry: Connector terminals, switch components, sensor housings, grounding parts
  • Instrumentation: Gauge components, meter parts, precision adjustment screws
  • Sanitary & Plumbing: Faucet components, shower valves, pipe fittings, hose connectors
  • Automotive & Marine: Carburetor parts, fuel system components, marine hardware
  • Lighting & Hardware: Lamp bases, decorative fixtures, lock components, fasteners
Frequently Asked Questions
What brass alloys do you offer for CNC machining?

We commonly work with C36000, C37700, C26800 and C28000 brass. Lead-free brass alloys such as C89833 are also available for drinking water and food contact applications.

Can you provide lead-free brass parts with certification?

Yes. We supply lead-free brass parts that meet NSF/ANSI 61 and RoHS standards. Material certification and test reports can be provided with your shipment upon request.

What surface finishes are available for brass parts?

Standard finishes include as-machined, tumbled and hand polished. Decorative and protective options include nickel plating, chrome plating, passivation, sandblasting and antique brass finishing.

What is the tightest tolerance you can hold on brass CNC parts?

Our standard tolerance is ±0.02mm. For critical features, we can hold down to ±0.003mm for dimensions and ±0.005mm for positional accuracy, depending on part geometry.

Do you accept small prototype orders for brass components?

Yes, we accept orders as low as 1 piece for prototype and testing purposes. Prototype orders typically ship within 3-5 working days with full dimensional inspection reports.