01 / Build to print1
Build-to-print turning
We quote and produce against the drawing revision you approve — diameters, lengths, threads and finishes as specified.
Drawing revision controlled
DRAWING REVIEW AVAILABLE
Precision CNC Turned Parts
Precision CNC turned parts manufactured from your 2D drawings and 3D CAD files — shafts, bushings, pins, spacers and fittings as one-off prototypes or low-volume batches, with requirements reviewed before quotation.
Manufactured in Dongguan, Guangdong, China. Every project is reviewed against your drawing requirements before quotation.
MOQ
1 part (prototype to low volume)
Files accepted
STEP, STP, DWG, DXF, PDF
Manufacturing location
Dongguan, Guangdong, China
CNC turning for custom parts manufactured from customer drawings.
Review before quote
Material, diameter, thread, finish
Materials
Metals and engineering plastics
Response time
Within one business day
DRAWING-BASED MANUFACTURING
CNC TURNING
CNC Turning Service for Drawing-Based Parts
Rotational parts manufactured from customer drawings and CAD files. Every RFQ is reviewed before quotation, and we usually reply within one business day.
02 / Rotational parts2
Parts defined around an axis
Shafts, bushings, sleeves, pins, spacers and threaded fittings, from a single prototype to repeat low-volume batches.
Shafts to fittings
03 / Reviewed first3
Requirements confirmed early
Material availability, blank selection, proportions and threads are reviewed before quotation; MOQ is 1 part.
MOQ 1 part
TYPICAL TURNED PARTS
Typical CNC Turned Parts
Most turned parts fall into a small number of families. If your part looks like one of these, send the drawing for review; if it does not, send it anyway and we will confirm the process at quotation.
01 / Shafts1
Shafts
Stepped or straight shafts with shoulders, grooves and bearing fits, manufactured to the diameters and runout requirements your assembly defines.
Drawing-defined
02 / Bushings and sleeves2
Bushings and Sleeves
Plain or flanged bushings with bores, OD fits and lubrication features, reviewed for wall thickness and bore-to-OD concentration.
Bore / OD fits
03 / Pins and spacers3
Pins and Spacers
Dowel pins, locating pins and standoff spacers with chamfers, radii and length tolerances matched to the mating parts.
Chamfers / radii
04 / Fittings and adapters4
Fittings and Adapters
Threaded fittings, adapters and connectors with internal and external threads and seal seats, machined to the thread callouts on the drawing. Secondary flats or cross-features can be reviewed as additional operations.
Thread callouts
MATERIALS & BLANKS
Materials and Bar Stock
Turned parts are commonly produced from bar stock or tube cut to length, with blanks selected against the drawing. Availability is confirmed per RFQ; no substitution without your written approval.
01 / Metals1
Metals
Aluminum (6061-T6, 7075-T6/T651), stainless steel (304/304L, 316/316L, 17-4 PH), carbon, alloy and tool steel (4140, A2, 1018, 1045) and titanium (Grade 2, Ti-6Al-4V Grade 5).
Grades per drawing
02 / Engineering plastics2
Engineering Plastics
POM, PTFE, Nylon/PA and PEEK, reviewed for clamping and heat because plastics behave differently from metals.
POM / PTFE / PA / PEEK
03 / Bar stock and blanks3
Bar Stock and Blanks
Blanks selected against the drawing and cut to length; stock size and availability confirmed per order.
Confirmed per RFQ
TURNING DESIGN REVIEW
Turning Design Points We Review Before Quoting
Turning concentrates risk in a part's proportions. Three points are reviewed on every RFQ before quotation.
01 / Length-to-diameter ratio1
Length-to-Diameter Ratio
Long, slender parts deflect under cutting forces; the review confirms supports, sequencing and the tolerances that must survive deflection.
Deflection risk
02 / Thin walls2
Thin Walls
Thin-wall sleeves and tubes can distort in clamping and cutting; movement risk is flagged at review so the functional minimum wall is confirmed with you.
Distortion risk
03 / Threads and fits3
Threads and Fits
Thread profiles, pitch, fit classes and transitions to plain diameters are clarified before quotation, so mating behavior matches the drawing.
Mating behavior
DIAMETERS & RUNOUT
Diameters, Runout and Datums
The drawing governs. Functional diameters are identified as critical dimensions and reviewed before quotation; clearance features remain on the general tolerance.
01 / Functional diameters1
Functional Diameters
Bearing seats, seal surfaces and thread majors are reviewed as critical dimensions before quotation.
Critical dimensions
02 / Concentric features2
Concentric Features and Runout
When a bore must run true to an OD, or a shoulder square to an axis, the drawing tells us which surfaces matter.
Reviewed as a system
03 / Datums and revisions3
Datums and Revisions
Tell us the datums, or confirm them when a revision changes; ambiguities are resolved before quotation.
Resolved before quote
SURFACE FINISHING
Surface Finishing for Turned Parts
Surface treatments can be coordinated per project requirements, with feasibility confirmed at quotation. Identify masking on the drawing when threads, bearing seats or seal surfaces must stay uncoated; confirm which diameters apply before or after finishing where coating thickness affects fits.
01 / Anodizing and coatings1
Anodizing and Coatings
Anodizing, hard anodizing, painting and powder coating, with masking requirements identified on the drawing.
Masking on drawing
02 / Blasting and polishing2
Blasting and Polishing
Bead blasting and polishing for surface texture and cosmetic requirements.
Texture and cosmetics
03 / Marking and other processes3
Marking and Other Processes
Passivation, electropolishing, laser marking and black oxide, with heat treatment coordinated where the drawing requires it.
Coordinated per order
QUALITY & INSPECTION
Inspection and Documentation
Finished parts are checked against the confirmed drawing and project requirements, with basic dimensional verification using calipers, micrometers, depth gauges and height gauges. Inspection scope and documentation requirements are reviewed during quotation: requested photographs, recorded dimension
Dimensional verification
Critical dimensions checked with calipers, micrometers, depth gauges and height gauges.
Agreed scope
Inspection covers the dimensions and requirements agreed in the quotation scope.
Documentation on request
Photographs, recorded dimensions and documentation formats are agreed during RFQ.
FROM YOUR ENGINEERING DATA
Working From Drawings and CAD Files
Every quotation is based on your engineering data. Send the available 2D drawing and/or 3D CAD model — STEP, STP, DWG, DXF and PDF files are accepted. Where both are supplied, they should identify the same revision; if the drawing and the CAD model differ, we ask you to confirm which one governs ins
What to send
The available 2D drawing and/or 3D CAD model, material specification with grade and condition, and quantity — from a single prototype to a repeat low-volume batch.
Requirements to identify
Tolerances, critical diameters, runout requirements, thread callouts, surface finish and any inspection or documentation requirements, identified before quotation.
Response time
Reviews are completed and we usually reply within one business day.
PROTOTYPES TO LOW-VOLUME BATCHES
CNC Turning Prototypes and Low-Volume Batches
MOQ is 1 part. A single turned prototype can be used for assembly checks and engineering review before a low-volume batch is released. Design iterations approved during validation are incorporated into an updated drawing revision before repeat production, and each order is re-quoted against the curr
One-off prototypes
Single parts for assembly checks and engineering review, manufactured to the approved drawing revision.
Design iterations
Changes approved during validation are incorporated into an updated drawing revision before repeat production.
Repeat low-volume batches
Repeat orders are re-quoted against the current drawing revision, quantity, material and inspection requirements.
HOW TO ORDER
How to Order CNC Turned Parts
From your first drawing to shipped parts, each stage is confirmed before the next begins.
01 / Send drawings1
Send drawings
Send the available 2D drawing and/or 3D CAD files with material, quantity, diameters, threads, finish and inspection requirements.
STEP / DWG / PDF
02 / Drawing review2
Drawing review
We check file consistency, material and blank availability, proportions, threads and tolerances, and flag any risks before quoting.
Per RFQ
03 / Quotation3
Quotation
You receive a quotation with the confirmed requirements in writing.
In writing
04 / Manufacturing4
Manufacturing and finishing
Parts are turned and finished to the confirmed files.
Per confirmed files
05 / Inspection5
Inspection
Parts are checked to the agreed scope before shipment.
Agreed scope
06 / Packaging and shipment6
Packaging and shipment
Parts are packaged and shipped; documentation agreed for the order is provided as agreed.
Per order
CNC TURNING FAQ
Precision CNC Turned Parts — FAQ
Answers to the questions engineers and buyers ask most often before requesting a quote for turned parts.
Have a different question about a turned part? Send your drawing and project details — we usually reply within one business day.