Precision Turned & CNC Components
CNC-turned, Swiss-turned and multi-spindle machined components held to tight tolerances. Produced on sliding head, CNC turning and automatic Traub machines across brass, stainless steel, copper and aluminium, from 2 mm to 200 mm diameter at tolerances of plus or minus 0.02 mm and above.
The actual parts
Turned parts made at Jay Ashapura.
Knurled sleeves, pins, shafts and general industrial components turned in brass, stainless steel, copper and aluminium.
Thread standards
- ISO Metric
- UNC
- UNF
- BA
- BSW
- Custom to drawing
Finishes
- Natural brass
- Electro tin
- Nickel
- Chrome
- Silver
- Gold
- Zinc blue
Swiss-type sliding head machines, Japanese-built, handle the small-diameter and long-thin work. Send your drawing →
Types we supply
Every machined part, to your drawing.
Whatever the geometry, we match the process, turning, milling or multi-axis, to your tolerance and volume.
Turning
- CNC Turned Parts
- Swiss Turned Components
- Multi-Spindle Turned
- Traub Turned Parts
- Micro-Turned Parts
- Long / Slender Parts
Milling & Machining
- CNC Milled Parts
- Multi-Axis (5-Axis) Machined
- Turn-Mill Parts
- Prismatic / Complex Parts
- Prototype Machined Parts
Common Machined Parts
- Shafts & Spindles
- Pins & Dowels
- Bushes & Sleeves
- Nozzles
- Adaptor Bodies
- Rods & Studs
Not only brass. The same part can be produced in stainless steel, copper, aluminium and other engineering alloys. Send the drawing with the grade you need and it is quoted in that material. See full material range →
Where they're used
Applications & industries served.
Applications
- Precision assemblies
- Instrumentation & metering
- Fluid & gas systems
- Electrical & electronics
- Medical devices
- Hydraulics & pneumatics
Industries served
- Electrical & electronics
- Automotive & EV
- Medical devices
- Aerospace & defense
- Oil & gas
- Instrumentation
See all the sectors we serve on our Industries page.
Materials
Machined from certified metal.
Free-machining grades for crisp features and tight tolerances, plus high-strength and compliant options. See full quality & traceability →
Free-Cutting Brass
C36000 · CW614N · CZ121, precision turning
High-Tensile Brass
For strength-critical machined parts
Low-Lead & Eco Brass
Medical, potable & RoHS compliance
Custom Alloys
Matched to your drawing or spec
How they're made
Manufacturing process.
Bar stock
Certified brass bar selected for machinability and the part's mechanical needs.
Turning / milling
CNC, Swiss, multi-spindle or multi-axis machining to the drawing's geometry.
Secondary ops
Drilling, tapping, knurling, cross-holes and sub-assembly as required.
Inspection
Dimensional and CMM inspection, surface-finish (Ra) verification, first-article reports.
Finishes, inspection & packaging
Delivered to print.
Surface finishes
- As-machined
- Polished
- Nickel / Chrome
- Tin / Zinc
- Bright-dipped
Inspection
- CMM / dimensional
- First-article (FAI)
- Surface finish (Ra)
- Thread gauge
Testing
- Material verification
- Hardness
- SPC on critical dims
- PPAP (on request)
Packaging
- Bulk / poly-bagged
- Individually bagged
- Tray / foam
- Custom-labeled
Documentation ships with the order. See our full quality standards →
Custom machined parts
Built to your drawing.
Send your drawing, CAD or a sample and we'll machine it to print in the right brass grade and finish, from a single prototype to millions of parts on special-purpose machines.
- Build-to-print & CAD
- Reverse engineering
- Tight-tolerance features
- Prototype to high-volume
Turned components FAQ
Questions, answered.
What materials do you turn?
Brass, stainless steel, copper and aluminium as standard, plus other engineering alloys to your specification. The material is quoted from the grade on your drawing rather than substituted.
Do you machine parts other than brass?
Yes. The IATF 16949 certificate covers machined metal components generally, not brass alone, and stainless, copper and aluminium are all in regular production.
What tolerances can you hold on brass turned parts?
We routinely hold ±0.02 mm, and tighter on critical features, with Swiss and precision CNC turning. Send your drawing and we'll confirm capability against your critical dimensions and surface finish.
What is the difference between CNC turning and Swiss turning?
CNC turning suits a broad range of part sizes and geometries; Swiss (sliding-head) turning excels at long, slender, high-precision parts in high volume. We run both, plus multi-spindle for high-volume simple parts.
Do you machine complex multi-axis brass parts?
Yes. Beyond turning we offer CNC milling and multi-axis machining for prismatic and complex brass components, with turn-mill and secondary operations as required.
Can you produce brass prototypes and high volumes?
Yes. We support single prototypes through to millions of parts on special-purpose machines, quoting the most cost-effective process for your volume.
What surface finishes are available on machined brass parts?
As-machined, polished, or plated (nickel, chrome, tin and more). Specify an Ra target and we'll match the finishing process to it.
Related: Bushings & Bearings · Custom & OEM · Manufacturing capabilities
Need turned components?
Send your drawings, CAD or a sample. We'll come back with the right brass grade, process and a clear quote.
Request a Quote