3D Hubs is now Hubs - custom parts manufacturing for engineers worldwide
Our CNC turning service capabilities
From prototyping to full production runs. Our wide range of CNC lathes and turning centers will allow you to produce highly accurate, high quality parts to meet even your most stringent requirements.
Can’t decide which machining process is best for you? Upload your CAD file for a free quote and manufacturability review that will identify any difficult-to-turn features.
CNC turning machines are able to provide low cost parts for simple cylindrical geometries. Live tooling is available for more complex geometries and is assessed on a case by case basis.
Maximum capabilities for CNC turning
|Part size limitations||Metric units||Imperial units|
|Maximum part diameter||431 mm||17 in|
|Maximum part length||990 mm||39 in|
|Maximum swing over the carriage||350 mm||13.7 in|
|Maximum spindle through-hole||40 mm||1.5 in|
Maximum speed: 1700RPM Motor power: 640W
Available materials for CNC machining
Here is a list of our standard CNC machining materials available through our online platform.
|Aluminum||Stainless steel||Mild, Alloy & Tool steel||Other metal|
|6061-T6||303||Mild steel 1018||Brass C360|
|7075-T6||316L||Mild steel 1045||Copper C110|
|5083||2205 Duplex||Alloy steel 1215||Titanium Grade 1|
|5052||17-4||Mild steel A36||Titanium Grade 2|
|15-5||Alloy steel 4130||Invar|
|2014||416||Alloy steel 4140||Inconel 718||2017||420||Alloy steel 4340||Magnesium AZ31B|
|2024||430||Tool Steel A2||6063||440C||Tool Steel A3||7050||301||Tool Steel D2||A380||Tool Steel S7||MIC 6||Tool Steel H13||Tool Steel O1|
|Polypropylene||Polypropylene (PP) 30%GF|
|Nylon 6||Nylon 30%GF|
|Acetal (POM-C)||PMMA (Acrylic)|
Available surface finishes for CNC machining
Surface finishes are applied after machining and can change the appearance, surface roughness, hardness and chemical resistance of the produced parts.
|As machined (Ra 3.2μm / Ra 126μin)||This is our standard finish. Parts are machined and deburred, sharp edges are chamfered.|
|Smooth machining (Ra 1.6μm / Ra 63μin)||Smooth machining is like an ‘As machined’ finish but with slightly less evident machine marks. Parts are machined at a lower feed, no hand polishing is applied.|
|Bead Blasted||Parts are bead blasted with glass beads which results in a grainy texture.|
|Brushed + Anodized type II (Glossy)||Parts are brushed and then anodized type II. Ideal for increasing the corrosion resistance of the part. Typically results in a glossy color.|
|Bead blasted + Anodized type II (Matte)||Parts are bead blasted and anodized type II. Ideal for increasing the corrosion resistance of the part. Results in naturally matte colors. For glossy colors, please select the brushed anodizing option.|
|As machined + Anodized type III (Hardcoat)||Parts are machined and an anodizing type III coating is directly applied to the surface. Ideal to improve corrosion and wear resistance of components.|
|Powder Coated||Powder coating is a strong, wear-resistant finish that is compatible with all metal materials.|
|Brushed + Electropolished (Ra 0.8μm / Ra 32μin)||Parts are brushed and electropolished. Ideal to reduce the micro-roughness of the part.|
|Black oxide||Applicable on steels, black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.|
|Chromate conversion coating||CParts are machined and a chromate conversion coating is applied. Ideal to increase the corrosion resistance of the part while maintaining its conductive properties. RoHS compliant.|
|Brushed (Ra 1.2μm / Ra 47μin)||Parts are brushed with a #400 - 600 grit. Ideal to reduce the surface roughness of the part.|
|Polishing (Ra 0.8μm / Ra 32μin)||Parts are manually polished in multiple directions. Surface is smooth and slightly reflective.|
Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.
We follow ISO 2768 standards for CNC Machining.
|Limits for nominal size||Plastics (ISO 2768- m)||Metals (ISO 2768- f)|
|0.5mm* to 3mm||±0.1mm||±0.05mm|
|Over 3mm to 6mm||±0.1mm||±0.05mm|
|Over 6mm to 30mm||±0.2mm||±0.1mm|
|Over 30mm to 120mm||±0.3mm||±0.15mm|
|Over 120mm to 400mm||±0.5mm||±0.2mm|
|Over 400mm to 1000mm||±0.8mm||±0.3mm|
|Over 1000mm to 2000mm||±1.2mm||±0.5mm|
|Over 2000mm to 4000mm||±2mm|
CNC turning design guidelines
The table below summarizes the recommended and technically feasible values for the most common features encountered in CNC machined parts.
Learn more in our Engineering Guide to CNC machining.
|Feature||Recommended size||Feasible size|
|Min. feature size||Ø 2.5 mm||Ø 0.50 mm|
|Internal edges||R 8 mm||R 0.25 mm|
|Minimum wall thickness||0.8 mm (for metals) 1.5 mm (for plastics)||0.5 mm (for metals) 1.0 mm (for plastics)|
|Holes||Diameter:standard drill bit sizes Depth: 4 x diameter||Diameter: Ø 0.5 Depth: 10 x diameter|
|Threads||Size: M6 or larger Length: 3 x diameter||Size: M2|
- ISO9001 certified Manufacturing Partners on request
- Inspection report included in every order. Full dimensional inspection reports on request
- Material certifications and test reports available on request
- Batch inspection in concurrence with ISO2859
- Strict NDA agreements with all Manufacturing Partners
- Manufacturing Partner performance tracking on lead time and quality