Trusted Custom Metal Turning Solutions for Precision Manufacturing

CNC Turning Size Range

Small Parts

Diameters typically range from 1 to 20 millimeters, with lengths between 5 and 100 millimeters—commonly seen in micro-shafts and connector pins used in electronic devices. These components demand exceptional precision, which CNC turning delivers through exact dimensional control, ensuring seamless compatibility with other system parts. During manufacturing, CNC turning can be seamlessly integrated with High Precision CNC Milling to produce complex internal and external features.

Medium-Sized Parts

Diameters generally fall between 20 and 200 millimeters, with lengths ranging from 100 to 1,000 millimeters. This category includes widely used shaft-type and disc-type components such as motor shafts and flanges. CNC turning ensures high accuracy in roundness, coaxiality, and other geometric tolerances, meeting rigorous mechanical transmission requirements. It is frequently combined with 5-Axis CNC Milling to fabricate intricate assemblies with enhanced functionality.

Large Parts

These parts feature diameters exceeding 200 millimeters and can extend up to several meters in length—examples include main spindles for large machine tools and ship drive shafts. Processing such oversized components requires heavy-duty CNC lathes capable of delivering substantial torque and structural rigidity to maintain stability throughout machining. Additional processes such as welding, heat treatment, or other metal fabrication services may be incorporated to improve strength, durability, and overall performance.