Live-tool turn-mill
Turning, milling, drilling and tapping can be combined where tool access and workholding allow. Confirm the route and any separate setup for the part.
CNC Turning Service for Complex and High-Tolerance Parts
Assess shafts, pins, fittings and flanged rotational parts with Jaquent. We review diameter and length, clamping and support, side features, finishing and inspection against the current drawing.
Turning proof points
Rotational relationships
Identify the relevant diameters, datum axis, runout or other stated geometric control. Inspection must evaluate the actual requirement rather than substitute a diameter reading.
Tolerances confirmed via DFM
Where no individual or general drawing tolerance applies, ±0.10 mm is a common quotation basis. Selected milling/turning features may be reviewed to ±0.01 mm where material and geometry allow; confirm through DFM.
What we provide
CNC turning and live-tool turn-mill suit rotational features such as shafts, pins, sleeves, flanged housings and threaded fittings. Swiss-type work covers suitable small or slender geometry; chuck turning handles larger work, with an existing reference outside diameter up to about Ø250 mm.
Review diameter together with length, overhang, wall thickness, support, tool access and final unclamped condition. Flats, cross-holes and threads can need live tooling or another operation. Confirm the interfaces that must remain related after each setup and any finishing.
The aluminum knurl case below documents visual process adjustment and acceptance for that case. For your own part, specify dimensional and geometric requirements separately.
Identify the journal or surface that establishes the datum axis on the controlled drawing, then show which other diameters and faces must relate to it. For a thin sleeve or long shaft, also state the required condition after unclamping and finishing. This helps distinguish a size requirement from a relationship between features.
Process flow
RFQ / CAD review
Share the current part requirements and available STEP model / marked PDF. Identify the revision, material, quantity and open questions for review.
DFM
We review the drawing’s stated size, runout or other geometric controls, thin walls, groove access and thread class. The specified control determines the inspection method.
Material & process planning
Bar stock, chucking strategy, and live-tool plan matched to grade and geometry.
Machining
Turning and turn-mill cycles with setup verification after tooling or fixture changes.
Inspection
Dimensional and thread verification per drawing — production-floor gauges and CMM as needed.
Shipping
Protected packaging for shafts and threaded parts; documentation per PO.
CNC turning specifications
| Item | Capability |
|---|---|
| Processes | CNC turning, live-tool turn-mill, drilling, tapping; Swiss-style for small diameters |
| Materials | Aluminum, stainless, steels, brass/copper alloys, engineering plastics — see material pages |
| Typical tolerance | Where no individual or general drawing tolerance applies, ±0.10 mm is a common quotation basis. Selected milling/turning features may be reviewed to ±0.01 mm where material and geometry allow; confirm through DFM. |
| Diameter range (ref.) | Swiss-style roughly Ø0.5–32 mm; chuck turning up to about Ø250 mm — confirm per part |
| File formats | STEP (.step / .stp) and a marked PDF recommended. The RFQ page lists direct upload formats; agree delivery of other formats and assembly dependencies before sending. |
| Inspection options | Micrometers, thread plug/ring gauges, CMM as required; FAI and reports on request; scope per drawing |
Materials and surface finishes
Aluminum CNC machining
Round and hex stock for shafts, spacers, and fittings.
Steel CNC machining
Carbon, alloy, and stainless bar for durable rotational parts.
Copper CNC machining
Brass and copper alloys for fittings and conductive components.
Plastic CNC machining
POM, PTFE, PEEK, and nylon for bushings and insulation parts.
CNC surface finishes
Plating, passivation, and related finishes with dimensional notes.
CNC materials guide
Grade comparison and selection guidance.
Case study: custom aluminum knurled component
This custom aluminum component required a clear, continuous diamond knurl. During process setup, the team identified irregular knurl patterns.
Coordinated process adjustment. To address the irregular patterns, the team adjusted knurling-wheel selection and alignment together with spindle speed and feed.
Visual verification. After adjustment, the knurl was inspected visually and compared with a reference sample for pattern appearance and continuity. The resulting knurl met the required visual acceptance criteria.
Request a Quote for your custom turned component.
From machined batch to black-finished component
Machined aluminum batch
The production photograph documents the aluminum components with their diamond-knurled surfaces.
Black-finished component
The same component after black surface finishing. The specific alloy and finishing process are confidential.
Turn-mill shaft evidence
The stepped shaft illustrates rotational features that may be combined with a flange, holes, flats or threads. Identify the datum axis, functional faces and runout or other geometric requirements on the drawing. The process and inspection plan must address those relationships after unclamping and finishing.
See functional tolerances and GD&T for requirement preparation.
Spools and drive shafts
Hydraulic valve spool
Illustrative part geometry. Stepped lands and radial ports where diameter control and surface finish matter for flow.
Servo output shaft
Illustrative part geometry. Integrated flange, wrench flats, and keyway for torque transmission in compact drives.
Tolerance and quality
Delivered limits are per drawing and confirmed via DFM. We perform pre-shipment inspection at the authorized manufacturing facility according to the agreed inspection plan — including 100% checks on critical characteristics when that scope is specified for the job. Material test reports (MTR) are available on request. Customer-specified FAI forms and drawing-characteristic coverage are available when specified and quoted. See CNC machining quality control for IQC / IPQC / FQC detail.
Applications
Industrial equipment
Illustrative application. Shafts, pins, bushings, and connectors for machinery and automation lines.
Fluid and fitting hardware
Illustrative application. Threaded and sealing features where concentricity and surface finish matter.
Precision assemblies
Illustrative application. Rotational interfaces that mate with milled housings and multi-axis parts.
CNC turning FAQ
What file formats do you accept?
STEP (.step / .stp) and a marked PDF drawing are recommended for geometry, diameters, threads and geometric controls. The RFQ page lists direct upload formats. For .iges, DWG, DXF or an assembly, agree conversion, delivery and dependencies before sending.
How does CNC turning differ from CNC milling?
Turning rotates the workpiece against the tool — ideal for cylindrical and concentric features. Milling moves the tool across a stationary (or indexed) workpiece — better for pockets, flats, and multi-face prismatic shapes. Many parts use both.
What materials can you turn?
Common metals and engineering plastics including aluminum, stainless, steels, brass, and polymers such as POM and PEEK. Stock form and grade are confirmed during DFM.
Prepare a process-specific inquiry
- Part number, revision, units and available STEP / marked PDF.
- Material grade and condition, outside diameter, length and any constrained stock or support areas.
- Critical diameters, datum axis, runout or other geometric callouts, threads and burr-sensitive edges.
- Finish, heat treatment, final acceptance state, quantity and required inspection records.
Request a Quote with the available information. With a complete RFQ, we typically respond within one business day; complex multi-process projects may take 1–2 business days.
Ready to start your CNC project?
Share the available drawing and project requirements. We review manufacturability, inspection and quotation scope before an order is confirmed.