CNC Turning Service
Custom CNC turning services from prototype development to standardized mass production, delivering high-precision machining at competitive rates. and tight tolerance . Lead times: 1-3 days.
- Custom symmetry prototype and production
- Include metal ,plastic,composite component
- Tolerance down to 0.005''
- CNC turning cost USD 5~500 USD/PCs
- We will keep the content you upload strictly confidential.
How does CNC turning work ?
CNC turning is a precision machining process for producing cylindrical and symmetrical parts from metal or plastic.
The workpiece rotates while the tool moves along X and Z axes to perform operations like turning, grooving, and threading, with coolant for heat and chip control.
It ensures high accuracy, consistent quality, and efficient mass production.
CNC Turning with Weldo machining
Weldo boasts over a decade of cnc turning expertise, offering services including external turning of bars and internal turning of axial holes. We select suitable metal materials or plastic components based on your project requirements and operating environment.We produce high-precision turned parts with expedited shipping available within 1 day.
Our precision CNC lathes efficiently remove excess material for features like axial (radial) bores, grooves, slots, and flat surfaces, delivering cost-effective, high-standard machining services.
Weldo CNC turning solution
Prototyping
Through our rapid prototyping and machining development services, we can transform your drawings into prototypes and molds within 1-3 days, helping you advance your design projects more efficiently.
Bulk precision machining
Whether for small-batch or production, we can strictly manufacture parts according to drawing and requirements, ensuring the production of part that meet your expectations.
CNC Turning Common Materials
WELDO provides precision CNC turning services for materials ranging from common aluminum, stainless steel, alloys, and copper to plastics such as ABS and PC etc.
Metal cnc material type:
Aluminum
It features low density and a hard texture, yet the material itself is relatively pliable. Highly corrosion-resistant, it is widely utilized in the fields of aerospace, biomimetic skeletal structures, and automotive component manufacturing.
Color : Silver.
Types : Aluminum 6061、7075、2024、5052、6063 and MIC-6.
Surface finish : Polishing, Brushing, Sandblasting, Chrome Plating, Anodizing, Electroplating, Powder Coating, Laser Etching.
Delivery time : 1-5 days.
Stainless steel
Corrosion-resistant, smooth, and easy to clean, used in kitchen, medical, construction, and automotive parts.
Color : Silver.
Types : Stainless steel 304/316/201/202/430/444/410/420/440c/2205/2507/17-4ph/17-7ph.
Surface finish : Polishing, Brushing, Sandblasting, Electroplating, Spraying, PVD (Physical Vapor Deposition), Passivation, Pickling, Coloring.
Delivery time : 2-5 days.
Copper
Possesses electrical conductivity, tensile ductility, and antimicrobial properties, primarily used for processing into crafts, decorative items, and medical equipment.
Color :Orange,yellow.
Types : copper H59/H62/Hpb59-1/C36000/HAI77-2/HSN62-1/HPb/HMn/HAl/HSn/HNi.
Surface finish : Passivation, Electroplating, Chemical Plating, Shot Peening, Sandblasting, Chemical Film Treatment, Polishing, Bright Cleaning.
Delivery time : 1-5 days.
Bronze
Bronze is a corrosion-resistant copper alloy with good fluidity and varying color by composition. It’s used for parts like bearings, gears, and marine components.
Color : gold/brown.
Types : Tin bronze, aluminum bronze, beryllium bronze, silicon bronze, manganese bronze.
Surface finish : Sandblasting, polishing, knurling, grinding, passivation, chemical film coating, impregnation coloring, brush/spray coloring, electroplating, anodizing, powder coating, brushing.
Delivery time : 1-5 days.
Steel
Iron-based alloy with Cr, Ni, and Mn, offering adjustable properties via heat treatment. Used for bolts, shafts, gears, cutting tools, and engine components.
Color : Silver .
Types : Steel S20C,S45C,S50C,SK85,SK95,40Cr,4140,4130,H13,D2,W1,A2,D2,M2,SKD11,ASP-23,S136.
Surface finish :Sandblasting, Mirror Finish, PVD Coating, Brushed Finish, Spray Coating, Electroplating.
Delivery time : 1-5 days
Magnesium
Lightweight and possesses low hardness, excellent thermal conductivity, and causes minimal tool wear. Its strength surpasses that of aluminum alloys and steel, and its damping capacity—1.5 times that of aluminum—enables it to effectively absorb vibrations and noise. Suited for aerospace and automotive part.
Color : Silver.
Types : Magnesium alloy AZ91D/AM60B/AM50A/AS41B/ZK60/MB8/AZ31/WE43/ZE41/LA141/LZ91.
Surface finish : Chemical conversion coating, anodizing, nickel plating, electroplating, composite coating, spray painting, powder coating, electrophoretic coating.
Delivery time : 1-5 days.
Plastic cnc material type:
ABS
Color : Beige,black.
Types : General-purpose, flame-retardant, heat-resistant, high-impact-resistant, transparent (MBS), filled modified, alloyed, functionalized ABS.
Surface finish :Spray coating, electroplating, screen printing, laser engraving, hot stamping, vacuum coating, transfer printing, sandblasting.
Delivery time : 1-5 days.
POM
Color : white,black,blue,yellow,etc.
Types : POM-H, POM-C.
Surface finish : Polishing, sandblasting, chemical polishing, laser polishing, anodizing/painting.
Delivery time : 1-5 days.
PEEK
PEEK is a high-strength, high-temperature engineering plastic with low friction and excellent chemical resistance. It is widely used in aerospace components, high-heat parts, and medical devices.
Color : Beige,black.
Types : CF-PEEK, GF-PEEK, PEEK with carbon black/ceramic/PTFE/graphite fillers.
Surface finish :Sandblasting, polishing, metal coating, polymer coating.
Delivery time : 1-5 days.
PVC
PVC is a robust, dense material characterized by excellent tensile strength and moderate elongation. Due to its resistance to chemical corrosion and aging, it is an ideal choice for corrosive environments.
Color : White,Beige,black.
Types : Rigid PVC and Flexible PVC.
Surface finish : Painting and plating, polishing, sanding
Delivery time : 1-5 days.
PTFE
PTFE offers ultra-low friction, strong chemical resistance, and excellent insulation, ideal for seals, gaskets, and bushings.
Color : White, natural, black, filled or custom-colored.
Types : Virgin PTFE，Glass-filled PTFE，Carbon-filled PTFE，Bronze-filled PTFE，Modified PTFE
Surface finish : Machining finish, polishing, texturing, coating, engraving, anti-static treatment.
Delivery time : 1-5 days.
PMMA
Color : clear,white,black,colored.
Types : General-purpose / Impact-resistant / Heat-resistant / Pearlescent.
Surface finish : Polishing, enhanced coating, sandblasting for texture, printing for coloring, anti-scratch and anti-fingerprint treatments.
Delivery time : 1-5 days.
PC
High-performance thermoplastic with excellent toughness, rigidity, and insulation—lightweight and ideal for CNC-machined electronic components.
Color : white or black.
Types : General Machinable/Flame Retardant/Reinforced/Blended PC.
Surface finish : Polishing, Hardening, Spraying, Laser Engraving, Electroplating, Hot Stamping.
Delivery time : 1-5 days.
PA
Color : Colored.
Types : PA6, PA66, PA6T, PA9T.
Surface finish :Mechanical grinding, acid/alkali etching, hydrolysis technology, coating.
Delivery time : 1-5 days.
PP
PP is a semi-crystalline thermoplastic with good flow, requiring temperature control during CNC machining. It’s widely used for containers, connectors, and structural parts.
Color : black,white,colored.
Types : PP-H, PP-B, PP-R, HIPP.
Surface finish :Polishing, Sandblasting, Coating.
Delivery time : 1-5 days.
PE
Color : black,white,colored.
Types : LDPE, HDPE, UHMWPE, PEX, PEX-A, PEX-B.
Surface finish :Polishing, sandblasting, coating, etching.
Delivery time : 1-5 days.
HDPE
Color : black,white.
Types : HI-HDPE, UV-HDPE, UHMWPE, Carbon Black-Filled HDPE.
Surface finish :Polishing, Sandblasting, Coating.
Delivery time : 1-5 days.
FR4
FR4 is a glass-fiber epoxy laminate with high strength, excellent insulation, and stable performance. It’s widely used for structural and insulating parts like spacers, brackets, and mounting plates.
Color : Yellow, green, black, white, natural
Types : Standard FR4 / High-Tg FR4 / Halogen-free FR4
Surface finish : Machining finish, polishing, sandblasting, coating, painting, laser marking
Delivery time : 1–5 days
Surface finish for CNC machining parts
Over the past 15 years, we have selected and briefly outlined more than 10 surface finished for various precision machined parts.
Machined finish
The prototype processed by the machine tool retains traces of tool machining.
Anodizing
Polish
Sand blasting
Uses high-pressure abrasives to create a clean, rough, matte surface finish.
Brushed finish
Powder coating
Uses electrostatic application and heat curing to form a dense layer, improving corrosion resistance on parts.
Electroplating finish
Deposits a metal layer to improve corrosion and wear resistance.
Black oxidize
Forms a low-cost, anti-reflective coating on metal surfaces via simple chemical oxidation.
Alodine
Forms a corrosion-resistant coating via chemical conversion, improving adhesion and conductivity.
Heat treatment
Tolerance for CNC turning
WELDO is ISO 9001 certified. We ensure precision machined parts meet stringent tolerance requirements. Our CNC lathes achieve tolerances as tight as ±0.005 inches. CNC metal turning precision complies with ISO 2768-m, while plastic turning precision adheres to ISO 2768-c tolerance standards.
| PROPERTY | DESCRIPTION |
|---|---|
| Maximum part size | The maximum direct machining diameter is 500mm, with a maximum machining length of 1200mm. For longer components requiring precision turning, we can adjust the equipment accordingly. |
| Minimum part size | The diameter is as small as 1 mm, depending on the specific part size requirements and material. |
| General tolerance | Our CNC turning standard tolerance is 0.01mm. If material and structure permit, tighter tolerances as low as ±0.005mm can be achieved. |
| Lead time | Prototype machining typically ships within 1-3 days. Small-batch CNC turning takes 3-5 days, with the fastest turnaround possible within 24-48 hours depending on part complexity and material. |
CNC turning design guilde
| ITEM | RECOMMENDED SIZE |
|---|---|
| Radii | The minimum inner radius should not be less than than 1 mm, with a maximum machining radius of 500 mm depending on the specific dimensional requirements and material of the part. |
| Threads and Tapped Holes | Capable of precision machining external and internal threads ranging from M1 to M50. To ensure thread stability, a minimum thread length of 1.5 times the diameter is recommended. |
| Minimum Wall Thickness | During CNC machining, the minimum recommended wall thickness for metals is 0.7 mm, while for plastics it is 1.5 mm. This ensures structural integrity of parts during turning and reduces costs. |
| Text | The minimum recommended engraving depth for characters is 0.2-2 mm, with a character height ranging from 1-10 mm. This depends on the material size and legibility requirements. |
| Holes | The minimum machinable hole diameter is 1 mm. For deep holes, it is recommended that the depth does not exceed five times the diameter to ensure part durability and quality. The maximum achievable depth is ten times the diameter. |
Why choose us
Weldo is a leading service provider in the CNC turning industry, consistently delivering high-quality, cost-effective CNC turning services to global clients for over a decade. Our extensive experience in CNC machining enables us to produce high-precision prototypes and models for you.
High quality part
We dedicate sufficient focus and expertise to every task, ensuring our milling processes produce parts that meet customer precision requirements down to ±0.01mm, guaranteeing normal part functionality.
Fast lead time
Our dedicated production planners systematically manage each project, ensuring rapid prototype machining on CNC machines to help clients launch and complete projects efficiently
Engineering support
At every stage, we leverage our extensive milling expertise to maximize solutions for material selection, structural design, process optimization, and quality enhancement.
Start your cnc turning project
Upload your CAD or PDF files now.
Get a quote, lead time, and full specs within 1 hour (business days).
Advantage of CNC turning
High Precision
Micron-level accuracy (up to ±0.001 mm) ensures reliable performance for demanding industries like aerospace and medical.
High Efficiency
Automated operation enables continuous production, with multiple processes completed in a single setup.
Flexibility
Quick program adjustments allow easy switching from prototypes to mass production without changing equipment.
Cost Efficiency
Reduced labor, less material waste, and fewer machines lower overall production costs.
Consistent Quality
Computer-controlled processes ensure stable quality and full traceability across batches.
CNC turning part application
Aerospace
High-precision engine and structural components designed for extreme conditions, featuring lightweight and high-strength geometries.
Automotive
Engine, transmission, and chassis parts with improved efficiency, durability, and performance.
Medical
Biocompatible implants, surgical tools, and precision components requiring high accuracy and surface quality.
Energy & Industrial
Valves, pumps, turbines, and machinery parts with high strength, corrosion resistance, and wear resistance.
Electronics & Precision Instruments
Lightweight housings, connectors, and high-precision components for sensors, optics, and measuring devices.
CNC turning FAQ
What materials are suitable for CNC turning?
Metals: Aluminum alloys, stainless steel, titanium alloys, copper, etc. (commonly used in aerospace, automotive, and medical fields).
Plastics: Engineering plastics (e.g., PEEK, nylon), suitable for lightweight components like electronic device housings.
Composites: Some CNC turning equipment can process carbon fiber-reinforced composites.
How does CNC Turning ensure consistent quality?
Programmed control: CNC systems precisely record each machining step and parameter, guaranteeing identical dimensions for all parts within a batch.
Traceability: Machining data is permanently stored, enabling rapid root cause analysis and process optimization when quality issues arise.
Industry certifications: Complies with stringent quality management systems like ISO 13485 (medical) and AS9100 (aerospace).
Where does CNC Turning's cost advantage lie?
High material utilization: Automated cutting minimizes scrap, with defect rates controllable below 1% (traditional methods may reach 5%).
Reduced labor costs: A single CNC lathe replaces multiple conventional machines, saving factory space and manual intervention.
Long-term benefits: Though initial investment is high, overall costs decrease through enhanced productivity, lower defect rates, and reduced downtime.
What are the limitations of CNC turning?
Shape constraints: Primarily suited for rotationally symmetric parts (e.g., shafts, discs); complex 3D structures require CNC milling or 3D printing.
Size limitations: Restricted by machine table dimensions and spindle power; oversized or heavy components necessitate specialized equipment.
Initial cost: Significant equipment investment makes it optimal for long-term.
