We produce complex rotational components that combine precision diameters with milled flats, ports, cross-holes, bolt patterns and angled features. MAZAK Y-axis live tooling, TSUGAMI dual-spindle back-working and DESHAN multi-axis capability reduce machine transfers and protect feature-to-feature relationships, supported by DFM and drawing-defined inspection for aerospace, semiconductor, robotics and medical applications.
AS9100D · IATF 16949 · ISO 10012
Subject To Drawing Review
Production Machines
Confidential File Exchange
Our mill-turn machining services combine turning spindles, live milling, Y-axis travel, and sub-spindle back-working in a single machine — producing complex parts with turned profiles, milled flats, cross-holes, and off-axis features complete in one clamping. The coordinated route protects feature-to-feature relationships. Standard tolerances are ±0.02 mm, with ±0.005 mm reviewed for critical features; the agreed drawing, setup and inspection plan determine the final capability.
We support prototype and repeat-production orders for manifolds, fittings and other rotational components. Programs and first parts are verified before repeat production; inspection coverage and records follow the agreed order requirements. Complete RFQs receive an initial engineering response within one working day; the quotation follows confirmation of the manufacturing scope.
Our mill-turn resources combine Y-axis live tooling, dual-spindle back-working and multi-axis access to complete turning, milling, drilling, tapping, angled holes and rear-side features with fewer setups. Machine selection follows the diameter and length envelope, bar or chucking route, material behavior, feature relationships and inspection access.
A rigid turning platform with Y-axis live tooling for combining precision diameters, bores and threads with milling, drilling and tapping in one coordinated setup.
Dual-spindle machining transfers the component for rear-side facing, boring, threading and related operations without moving it to a separate machine and fixture.
A multi-axis route for angled holes, off-axis features and complex profiles on turned components where access and feature relationships justify the additional movement.
The values below describe our confirmed general mill-turn envelope. Dimensional values are specified in millimeters; inch equivalents are rounded. Final capability depends on material, stock form, wall thickness, unsupported length, tool reach, feature relationships and measurement access. The central advantage is not only an individual diameter tolerance, but the ability to control turned and milled features from a common setup when runout, true position or perpendicularity is functionally critical.
| Capability | Specification |
|---|---|
| Max turning diameter | Ø340 mm |
| Max turning length | 553 mm |
| Maximum bar capacity | Ø52 mm |
| Y-axis travel | 100 mm |
| Standard tolerance | ±0.02 mm (±0.0008 in) |
| Precision tolerance | ±0.005 mm (±0.0002 in) on critical features, subject to drawing review |
| Concentricity | 0.01 mm with single-setup machining |
| Surface finish | Ra 0.8 µm as machined; Ra 0.4 µm with precision finishing |
| Main spindle speed | Up to 6,000 rpm |
| Live tool speed | Up to 4,500 rpm |
| Live tooling capacity | Drilling Ø20 mm / milling Ø20 mm / tapping M20 × 2.5 |
| Batch size | 1 prototype to 10,000+ production parts |
| Typical lead time | 5–15 working days |
The manufacturing sequence covers drawing and technical requirements review, process planning, incoming material inspection, first article inspection, production machining, surface treatment and final inspection. Machining instructions and inspection records are tied to the approved drawing revision and production batch.
Material behavior influences tool selection, heat control, chip evacuation, workholding and the balance between turning and milling operations. We review bar, prepared blanks, forgings or castings against machining allowance, stock condition, hardness and traceability requirements; material certificates, including EN 10204 3.1 where specified, can accompany the order.
| Image | Material Family | Regular Grades | Performance Advantages | Typical Applications |
|---|---|---|---|---|
 | Aluminum |
| Low density, good machinability and high thermal conductivity; selected grades provide a strong strength-to-weight ratio. | Robotics frames, semiconductor chambers, aerospace brackets |
 | Stainless Steel |
| Corrosion resistance, mechanical strength and clean-service compatibility; precipitation-hardening grades add higher strength. | Vacuum and semiconductor parts, robotics fittings |
 | Titanium |
| High strength at low weight, excellent corrosion resistance and dependable performance at elevated temperatures. | Aerospace structural and engine components |
 | Superalloys |
| Retains strength under heat and resists oxidation, corrosion and creep in demanding operating environments. | Aerospace turbine and high-temperature parts |
 | Copper & Alloys |
| High electrical and thermal conductivity; selected alloys add strength, fatigue resistance and wear performance. | Semiconductor electrodes, ESD-conscious robotics parts |
 | Engineering Plastics |
| Low mass, chemical resistance and electrical insulation, with selected grades suited to heat, low friction or dimensional stability. | Wafer handling, lightweight robotic components |
 | Ceramics |
| High hardness, wear and heat resistance, electrical insulation and stable performance in clean or corrosive environments. | Semiconductor insulators, wafer chucks and wear components |
| Tool & Alloy Steel |
| High strength, hardness and fatigue resistance, with heat-treatment options for wear surfaces and load-bearing features. | Robotics reducers, shafts, couplings and gears |
Finishing is planned with coating allowance, masking, thread protection, sealing surfaces and post-process verification in mind. In-house and qualified partner processes are managed under one purchase order, with critical features rechecked after finishing when required by the drawing or control plan.
A finish left directly by the cutting process, with controlled tool marks and no additional surface treatment. The process capacity table and drawing define the required roughness.
Typical Applications: Robotics journals and bearing seats
A mechanical finishing process that smooths the surface to reduce roughness and improve sealing, cleanability or appearance.
Typical Applications: Semiconductor sealing faces and vacuum bores
A surface treatment that creates a uniform matte texture by blasting fine abrasive media onto the part surface.
Typical Applications: Aerospace and robotics surfaces
Type II anodizing builds a protective oxide layer on aluminum for corrosion protection and appearance. Clear natural and dyed finishes are color options within the same process. A custom color reference and acceptance sample can be specified.
Typical Applications: Aluminum housings, robotics arms, brackets and visible components
Hard anodizing is selected for wear-resistant aluminum surfaces. Coating allowance and masking are planned around critical fits; any hardcoat color requirement is reviewed with the specified alloy and thickness.
Typical Applications: Sliding guides, bushings and wear-contact aluminum components
A chemical treatment for stainless steel that removes free iron from the surface and supports its natural corrosion resistance.
Typical Applications: 316L semiconductor and vacuum parts
A chemically deposited nickel coating that provides consistent thickness on complex geometry and improves corrosion and wear resistance.
Typical Applications: Semiconductor chambers and robotic leadscrews
A corrosion-resistant precious-metal coating that provides stable electrical contact performance and low contact resistance.
Typical Applications: Precision contacts and semiconductor electrodes
A highly conductive metallic coating used to improve electrical and thermal transfer on functional component surfaces.
Typical Applications: High-current contacts and conductive components
A thin conversion finish for ferrous metals that reduces glare and adds mild corrosion protection with the specified seal or oil.
Typical Applications: Steel fasteners, tooling and fixtures
A crystalline conversion coating for steel that improves lubricant or paint adhesion and supports wear-in and corrosion protection.
Typical Applications: Aerospace fasteners and wear components
A permanent marking process for part numbers, lot codes and traceability without adding a separate label.
Typical Applications: Traceability and part numbers
An electroplated zinc layer provides sacrificial corrosion protection for carbon and alloy steel components with controlled coating thickness.
Typical Applications: Steel fittings, couplings and industrial hardware
Through-hardening, case hardening or precipitation hardening is coordinated with material grade, distortion allowance and final verification.
Typical Applications: Shafts, couplings, gears and wear features
Grinding refines critical journals, outside diameters and surface finish when a bearing or sealing requirement exceeds the practical turning limit.
Typical Applications: Bearing fits, journals and precision locating diameters
Single-setup machining reduces fixture-to-fixture error, but it does not replace verification. The first part is checked against the released drawing, critical turned and milled features are sampled at defined stages, and final inspection uses calibrated equipment selected for diameter, runout, true position, perpendicularity, profile and surface finish. Zeiss CMM programs support complex relationships, while AS9102 FAI, material certificates, SPC evidence and certificates of conformance are planned when requested at the RFQ stage. Additional checks use 10 microscopes for burrs, edges and surface condition, plus roughness instruments for drawing-defined surface finish.
Our mill-turn service connects process selection, workholding, multitasking equipment, qualified finishing and a measurement room led by a Zeiss CMM. One engineering team follows the drawing from quotation and first-part approval through repeat delivery and documented changes.
Turning, milling, drilling and tapping remain on one coordinated route so concentricity, runout and true position depend less on fixture-to-fixture transfer.
Back-working on the TSUGAMI and angled-feature access on the DESHAN keep more of the complete component inside the mill-turn cell.
AS9102 FAI, material traceability, drawing-defined inspection and requested production evidence are planned around aerospace, semiconductor, robotics and medical requirements.
We review whether mill-turn is justified, identify tolerances and features that drive cost, and explain when a simpler turning or milling route is more practical.
Turned and milled characteristics receive defined measurement methods, sampling and release evidence before the production program is approved.
Machining, qualified finishing, post-process verification and documentation are coordinated under one purchase order and one responsible engineering team.
Mill-turn machining supports industries where mixed rotational and prismatic geometry must be delivered with stable datum relationships, traceable materials and inspection evidence aligned with the drawing and program requirements.
AS9102 first-article planning, material traceability and controlled inspection support tight relationships between turned datums, ports, mounting faces and functional bores.
Ti-6Al-4V · Inconel 718 · 7075-T6
Released revisions, material identity, critical dimensions and retained inspection evidence are controlled around the drawing, purchase order and program requirements.
17-4PH · 7075-T6 · Ti-6Al-4V
Sealing faces, internal passages, surface finish, burr control and material records are planned together for equipment that depends on cleanliness and stable interfaces.
316L · 6061-T6 · copper alloys
Sealing geometry, surface finish, intersecting passages and any specified leak or cleaning requirement are reviewed as part of one manufacturing and inspection plan.
316L · aluminum · engineering plastics
Runout, bearing fits, positional relationships and assembly datums are controlled together where smooth motion and repeatable reducer performance depend on them.
Aluminum · stainless steel · alloy steel
Customer-defined medical quality controls support traceable materials, burr and edge requirements, controlled finishes and drawing-defined inspection documentation.
316L · Ti-6Al-4V ELI · PEEK
Mill-turn machining, also called turn-mill or multitasking machining, combines a turning spindle with live milling capability and coordinated multi-axis tool movement. The workpiece rotates for diameters, bores, faces and threads, then holds indexed or controlled positions while tools cut flats, pockets, keyways, cross-holes, ports and contours.
The process is designed for components that are fundamentally rotational but carry substantial non-rotational geometry. Instead of moving the part from a lathe to a machining center, turning, milling, drilling, boring, tapping and rear-side work are organized into one setup or as few setups as practical.
Each re-clamping step adds handling time and introduces a new relationship between fixture location and the original datum. Keeping features in one coordinated route helps protect concentricity, runout, true position and perpendicularity where milled details must relate closely to turned surfaces.
Swiss machining is usually preferred for small, slender bar-fed components supported close to the cut. Mill-turn is the stronger choice for larger or chucked parts with more substantial milled geometry. The RFQ review selects the process that best matches the drawing rather than forcing every mixed-geometry part onto the same machine type.
Clear answers about mill-turn process selection, capability, documentation and quoting.
Mill-turn machining combines CNC turning with live milling and multi-axis tool movement. The workpiece rotates for diameters, bores and threads, then holds controlled positions while tools cut flats, pockets, cross-holes, ports and contours.
Mill-turn is valuable when substantial turned and milled geometry must relate closely to the same datums. Reducing transfers between a lathe and mill removes setup time and lowers the positional risk introduced by re-fixturing.
Both can complete complex components in one coordinated machine. Swiss machining is strongest for small, slender bar-fed parts supported close to the cut, while mill-turn handles larger or chucked components with more substantial milled geometry.
The confirmed machine envelope and general tolerance values are listed in the capacity table. Final capability depends on material, wall thickness, feature relationships, tool access, workholding and the agreed inspection method.
The starting stock is reviewed with the drawing and process route. Bar, prepared blanks, forgings or castings may be suitable depending on geometry, material condition, machining allowance and traceability requirements.
Drawing-defined inspection reports, AS9102 first-article records, material certificates, lot traceability, SPC evidence and certificates of conformance can be planned when requested at the RFQ stage.
