CNC Turning Service

Komacut offers instant quotation and online ordering for CNC turned parts. With factory direct turned parts, easy online order management and shipping, along with flawless in-house production, we provide CNC machined parts with highly competitive lead times and cost.

Why Use Komacut for CNC Turning?

  • Factory direct pricing
  • Fast turnaround times
  • In-Machine tool changing for more complex geometries
  • Wide range of stock materials

What is CNC Turning?

CNC turning is a subtractive manufacturing process, which means it starts with a larger block of material and removes what is needed in order to form the final part. Turning uses computer numerical control (CNC) to spin a part and control the movement of cutting tools to remove material to create a desired shape.

CNC turning is a highly versatile process that can be used to create a wide range of parts, from simple shafts to complex geometric shapes. Depending on the type of CNC machine used, turning machines can also add holes, change tooling, add milled-style features, etc. for more complicated parts.

CNC Turning

What Materials Does Komacut Offer for CNC Turning?

  • Hot Rolled Steel - #20, Q235, Q345
  • Aluminum - AL6061 T6, AL7075 T6
  • Stainless Steel - SS304, SS316

For a detailed list of materials see the table section below.

What Types of Parts Can Komacut Make With CNC Turning?

In general, the parts more commonly made with CNC turning are cylindrical, with or without threading, which require a level of precision that simpler processes cannot provide. This can include such common mechanical parts types as:

  • Bushings
  • Pins
  • CNC turned screws and bolts
  • Shafts
  • Axles
  • Nuts

CNC Turned Parts

What Applications Is CNC Turning Used For?

CNC turning is used to manufacture a wide variety of parts in a wide range of industries, including:

  • Automotive
  • Aerospace
  • Medical
  • Electronics
  • Industrial machinery
  • Consumer goods

Basically, any possible application that requires precise metal and plastic pins, shafts, axles, pins and other parts will utilize CNC turning.

CNC Turning Process

The CNC turning process typically involves the following steps:

  • Setup: The workpiece is loaded into the CNC lathe and secured in a chuck.
  • Programming: The CNC lathe is programmed with the desired part geometry.
  • Machining: The CNC lathe rotates the workpiece and moves the cutting tools to remove material according to the programmed geometry.
  • Inspection: The finished part is inspected to ensure that it meets the required specifications.

Commonly Asked Questions for CNC Turning

CNC turning involves rotating the part while the cutting tool remains stationary, whereas in milling, the cutting tool rotates and the part is generally fixtured in place.

CNC milling is more flexible in the types of geometries it can make, but due to the high speed cutting and simple processing, CNC turning is very cost competitive for simple to relatively complex cylindrical parts.

CNC turning is known for its high precision and accuracy, capable of meeting tight tolerances for intricate designs. Refer to the tables below.

Yes, CNC turning is capable of handling complex geometries. This technology is highly versatile and can be used to create parts with intricate designs and detailed features. Its precision and control allow it to accurately produce complex shapes, making it a valuable tool for various applications where detailed and precise geometrical shapes are required.

It's widely used in automotive, aerospace, medical, electronics, industrial machinery, and consumer goods industries.

Komacut Design Guidelines for CNC Turning

RoughnessStainless SteelCarbon SteelAluminium
As Milled ≤ 6.0 μm Ra   
Standard ≤ 3.2 µm Ra   
Fine ≤ 1.6 µm Ra   
High Grade ≤ 0.8 µm Ra   

FinishStainless SteelCarbon SteelAluminium
Powder Coating   
Zinc plating 

MaterialYield (MPA)Tensile (MPA)HardnessGB standardSheet MetalCNC Turning
Cold Rolled Steel (CRS)
 SPCC≥210≥350HB 65 - 80JIS G3141-2009 
 SAPH440≥305≥440HB 80 ± 30Q/BQB 310-2009 
Hot Rolled Steel
 Q235≥235375 - 500HB 120 ± 40GB/T 700-2006  
 Q345≥345490 - 675HB 120 ± 40GB/T 1591-2008  
Spring Steel
 65Mn≥785≥980HB 190 - 340GT/T 1222-2007 
 AL1060≥35≥7526 ± 5GB/T 3190-2008 
 AL5052 H32≥70210-260HB 11 ± 2GB/T 3190-2008 
 AL6061 T6≥276≥260HB 15 -18GB/T 3190-2008  
 AL6063 T5≥170≥250HV 25 ± 5GB/T 3190-2008 
 AL7075 T6≥503≥572HB 150 ±5GB/T3880-2017 
Stainless Steel
 SS301≥205≥520HB 76 - 187GB/T 8170-2008 
 SS304≥205≥520HB 76 - 187GB/T 24511-2009  
 SS316≥205≥520HB 76 - 187GB/T 24511-2009  
Cold Galvanized Steel
 SGCC≥200≥380HB 60 - 65JIS-G3302 

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