CNC Turned Parts — Precision CNC Turning & Turn-Mill Services
Custom CNC turned components manufactured to exact drawings — shafts, bushings, valve bodies, fittings, and complex turn-mill parts. ISO 9001:2015 certified. CMM inspected. Global delivery to USA, Europe, and worldwide.
✓ Single piece to 10,000+ ✓ STEP, DXF, PDF accepted ✓ NDA available
Precision CNC Turned Parts — From Prototypes to High-Volume Production
CNC turning is the most efficient process for precision rotational components — shafts, bushings, pins, flanges, valve bodies, hydraulic fittings, and impellers. Robocon CNC operates dedicated CNC turning centres and turn-mill machines at our Pune facility, handling materials from free-cutting brass to Inconel 718 across diameters from 3 mm to 300 mm.
Our turn-mill centres add live rotary tooling to the lathe — enabling cross-holes, flats, keyways, off-centre features, and complex profiles to be machined in a single setup. This eliminates the re-fixturing that causes concentricity errors and datum shift when moving between a lathe and a mill. For complex turned components, this means better quality and shorter lead time in the same operation.
Every turned part is CMM inspected against all critical dimensions — diameter, concentricity, perpendicularity, thread pitch, and surface finish (Ra measured). Material traceability certificates, CMM inspection reports, and dimensional reports are supplied with every shipment as standard.
Why Choose Robocon CNC for Turned Parts
Turn-Mill in One Setup
Live tooling on our turn-mill centres handles cross-holes, flats, keyways, and off-centre features without re-fixturing — eliminating concentricity errors and reducing lead time on complex turned parts.
±0.005 mm Precision
Standard turning tolerance ±0.01 mm; precision applications to ±0.005 mm. Ground journal surfaces to h5/h6 tolerance class. CMM verification on all critical diameters, concentricity, and perpendicularity.
High-Volume Bar Fed
Bar-fed CNC turning centres for high-volume production runs — consistent quality from part 1 to part 10,000, with automatic tool compensation to maintain tolerance across long production runs.
Global Express Delivery
DHL Express and FedEx International Priority from Pune to USA (3–5 days), Germany/UK/Netherlands (4–7 days), Australia (7–10 days), and worldwide. Full export documentation from our end.
CNC Turning Capabilities
CNC Turning — Cylindrical & Tapered
Outer diameter (OD) and inner diameter (ID) turning, facing, boring, threading, grooving, and parting. Diameter range 3 mm to 300 mm. Length up to 800 mm. Tight concentricity and runout control on multi-diameter shafts.
Turn-Mill — Live Tooling
Milling, drilling, tapping, and slotting performed on the same machine as turning — using live rotary tooling. Cross-holes, flats, hexagons, keyways, off-centre bores, and radial features machined in one setup without re-fixturing.
Thread Turning & Grinding
External and internal thread turning (metric, UNC, UNF, BSW, BSP, ACME, Tr, NPT, BSPT) using single-point threading tools for precise form. Cylindrical grinding on bearing journals and close-tolerance mating surfaces to h5/h6 class.
Bar Fed High Volume
Automatic bar feeders for continuous production runs — pins, bushings, fittings, and standard turned components produced in high volume with consistent quality and automatic tool offset compensation across long runs.
Prototype Turning
Single-piece and small-batch prototype turning in 5–7 days. CMM inspection and material certificates on every prototype run regardless of quantity. DFM feedback included in every prototype quote at no charge.
CMM Inspection & Reports
CMM inspection on all critical turned features — outer diameter, bore diameter, concentricity, perpendicularity, thread pitch, surface finish (Ra). Full dimensional inspection report supplied with every order.
Materials for CNC Turned Parts
Applications of CNC Turned Parts
🚗 Automotive & EV
Drive shafts, axle pins, bearing journals, gear blanks, sensor housings, hydraulic valve bodies, and EV motor shafts — machined to tight concentricity with CMM verification for automotive OEM supply chains.
✈️ Aerospace & Defence
Precision turned actuator rods, piston pins, valve spools, swashplate components, and structural fasteners in titanium, Inconel, and aluminum 7075 — with FAI and material traceability documentation.
🏥 Medical Devices
Surgical instrument shafts, implant trial components, endoscope components, and diagnostic device bodies in 316L stainless, titanium, and PEEK — with Ra surface finish verification and full traceability.
💧 Hydraulics & Pneumatics
Valve bodies, spools, piston rods, cylinder end caps, port blocks, and hydraulic fittings — tight bore tolerances, surface finish to Ra 0.4, and thread verification for leak-free assembly.
🔌 Oil & Gas
Downhole tool components, wellhead fittings, valve internals, manifold bodies, and flow control parts in duplex stainless, Inconel, and alloy steel — machined to API and NACE standards.
⚙️ Industrial Machinery
Gear blanks, coupling hubs, pulley shafts, bearing housings, and precision bushings for industrial machinery OEMs — bar-fed production runs with consistent tolerance and surface finish across batches.
How to Order CNC Turned Parts
Upload Drawing
Send your STEP, DXF, or PDF drawing via our quote form. Include material, diameter/length, tolerance class, surface finish (Ra), thread specification, and required certifications.
Receive Quote
Our engineers respond within 24 hours with pricing, lead time, and DFM feedback — including suggestions on material selection, thread form, or surface finish that could reduce cost or improve performance.
Turning & Inspection
Parts are CNC turned and turn-milled to your drawing specification. CMM inspected on all critical features. Packaged with material traceability certificate, CMM inspection report, and surface finish report.
Global Delivery
DHL Express or FedEx International Priority from Pune. USA: 3–5 days. Germany / UK / EU: 4–7 days. Australia: 7–10 days. India domestic: 1–2 days. Full export documentation included.
Ready to Order Precision CNC Turned Parts?
Upload your drawing today and receive a detailed quote within 24 hours. No minimum order. Global delivery included.
FAQ — CNC Turned Parts
CNC turned parts are precision components manufactured on CNC lathes and turn-mill centres, where the workpiece rotates while cutting tools remove material to create cylindrical, tapered, or complex rotational shapes. Common turned parts include shafts, bushings, pins, valve bodies, fittings, bearing housings, and impellers.
CNC turning produces cylindrical and tapered features by rotating the workpiece against a fixed cutting tool. Turn-mill centres add live rotary tooling — milling cutters, drills, and taps — to the lathe. This allows cross-holes, flats, keyways, and off-centre features to be machined in the same setup without re-fixturing, eliminating concentricity errors and reducing lead time on complex turned components.
Our standard CNC turning tolerance is ±0.01 mm. For precision applications we achieve ±0.005 mm on critical diameters and features. Ground journal surfaces are achievable to h5 or h6 tolerance class for bearing-fit diameters. All critical dimensions are CMM verified with full dimensional inspection reports provided.
No minimum order quantity. We machine single-piece prototypes through to high-volume production runs of 10,000+ parts. Bar-fed CNC turning centres significantly reduce per-piece cost on volume orders of simple turned parts from 50 pieces upward.
We machine aluminum (6061, 7075, 6082), stainless steel (303, 304, 316L), mild steel, EN8, EN24, 4140 alloy steel, brass, copper, titanium Grade 5, Inconel 625/718, and engineering plastics including Delrin, Nylon, PTFE, and PEEK. SS303 is specifically recommended for complex turned parts as it machines most freely of all stainless grades.
Yes. We export precision CNC turned parts to customers in the USA (3–5 days), Germany (4–7 days), UK (4–7 days), Netherlands (4–7 days), Sweden (4–7 days), Australia (7–10 days), Israel, Turkey, France, and worldwide. Full export documentation — commercial invoice, packing list, certificate of origin, HS codes — is prepared from our end.
Yes. Material traceability certificates and CMM dimensional inspection reports are supplied with every order as standard. FAI reports, PPAP documentation, and surface finish (Ra) measurement reports are available on request. Please specify documentation requirements at quoting stage.
Yes. We produce all standard thread forms including metric (M series), UNC, UNF, BSW, BSP, ACME, Trapezoidal (Tr), NPT, and BSPT. External and internal threads are single-point turned for precise form accuracy. Thread gauging verification is included on all threaded parts.