Custom Brass CNC Turned Threaded Fitting
Custom brass CNC turned threaded fittings manufactured to your exact engineering drawings, thread specifications, and dimensional requirements. Engineered for OEM equipment, fluid connections, pneumatic systems, HVAC assemblies, and industrial instrumentation where standard catalog fittings fail to provide the required combination of thread, bore, or geometry.
Custom Thread Specifications and Options
|
Category |
Available Customizations and Features |
|
Thread Types and Standards |
Metric, NPT, BSPP, BSPT, UNF, UNC (Internal female, external male, or male-to-female adapters) |
|
Thread Geometry |
Custom thread lengths, specified thread engagement, thread reliefs, and lead-in chamfers |
|
Bore and Wall Options |
Straight bores, stepped bores, reduced flow bores, and custom wall thicknesses |
|
Mating and Sealing Features |
O-ring grooves, metal-to-metal sealing faces, shoulder locations, and integrated wrench flats |
Brass Material Selection and Compliance
|
Material Alloy / Grade |
Primary Characteristics |
Common Applications |
|
C3604 / C36000 / CW614N |
Excellent machinability, high precision, good strength |
Standard fluid, pneumatic, and general industrial fittings |
|
CW602N / CZ132 (DZR Brass) |
High resistance to dezincification and water corrosion |
Aggressive water environments, HVAC, and boiler systems |
|
C27450 / C69300 (Lead-Free) |
Compliant with potable water and environmental regulations |
Safe drinking water systems, medical, and RoHS/REACH applications |
Key Problems Resolved by Custom Machining
Eliminating Unnecessary Adapters: Combining multiple thread sizes, step-down bores, or connection profiles into a single part eliminates extra adapters and reduces potential leak paths.
Overcoming Space Limitations: Custom outer diameters, shorter overall lengths, and tailored shoulder positions allow fittings to fit inside tight housings.
Preventing Thread Misalignment: Machining directly to drawing specs eliminates cross-threading and fitment failure during assembly.
Ensuring Clean Connections: Specialized deburring and cleaning prevent burrs from damaging O-rings, fouling valves, or clogging fluid pathways.
Manufacturing Process and Secondary Operations
|
Production Stage |
Operations Included |
|
Primary CNC Turning |
Bar stock feeding, OD turning, facing, drilling, boring, internal/external threading, grooving, parting |
|
Secondary Machining |
Cross-hole drilling, tapping, slot milling, and wrench flat machining |
|
Finishing and Cleaning |
Mechanical deburring, ultrasonic washing, surface polishing, electroplating (Nickel, Chrome) |
Quality Control and Inspection Standards
|
Inspection Feature |
Quality Assurance Method |
|
Internal / External Threads |
Thread Go / No-Go Gauges, Optical Profile Projectors |
|
Bore and Outer Diameters |
Pin Gauges, Micrometers, Bore Gauges |
|
Linear Dimensions and Shoulders |
Digital Calipers, Height Gauges |
|
Surface Finish and Sealing Faces |
Surface Roughness Testers (Ra), Visual Microscopic Inspection |
Typical OEM Applications
|
Industry |
Component Functions |
|
Fluid Handling Equipment |
Connectors, custom adapters, hose tails, and manifolds |
|
Pneumatic Systems |
Compressed air line adapters, valve body connectors, and control fittings |
|
HVAC and Plumbing |
Water distribution fittings, sensor ports, and specialized valve adapters |
|
Instrumentation and Controls |
Pressure gauge adapters, sensor housings, and small-bore test ports |
7.Flexible Production and RFQ Requirements
We support your full product lifecycle from early prototyping to repeat OEM production.
Prototypes and Pilot Batches
Low minimum order quantities to verify thread fit, sealing, and function.
Repeat Mass Production
Controlled manufacturing parameters stored for consistent repeat orders.
FAQ
Q: Can custom brass threaded fittings be manufactured from our drawing?
A: Yes. A 2D engineering drawing, 3D CAD model or detailed dimensional specification can be used as the manufacturing reference. The drawing should identify the material, thread requirements, dimensions and critical tolerances.
Q: Which thread standards can be produced?
A: Common requirements include metric, NPT, BSPP and BSPT threads. Other thread specifications can be reviewed according to the drawing and machining
requirements.
Q: Can you manufacture both male and female brass threaded fittings?
A: Yes. CNC turning can produce external male threads, internal female threads and fittings combining different thread configurations.
Q: Which brass grades are suitable for CNC turned fittings?
A: Common CNC-machined brass options include grades such as C3604 and CW614N. Other brass alloys can be considered when the application requires different mechanical, corrosion or regulatory characteristics.
Q: How are brass fitting threads inspected?
A: Thread requirements can be verified using appropriate thread gauges and dimensional measurement methods. Critical thread and mating features should be identified on the drawing so inspection focuses on the dimensions that affect actual assembly.
Q: Can the fitting be customized for a specific mating component?
A: Yes. Thread size, pitch, bore, overall length, shoulder location, sealing features and other dimensions can be designed around the mating component.
Q: Can samples be produced before a larger production order?
A: Yes. Prototype or sample production can be used to verify thread compatibility, dimensional fit and assembly before repeat or higher-volume production.
Q: What information is needed for a quotation?
A: The most useful information includes the engineering drawing or CAD file, brass material grade, thread standard, thread size, quantity, critical tolerances, surface finish and inspection requirements.
Hot Tags: custom brass cnc turned threaded fitting, China custom brass cnc turned threaded fitting manufacturers, suppliers, factory, Stainless CNC Turning Ring
