What Is a Dividing Head in CNC Machines?

CNC systems enable machine tools such as:

• Lathes
• Milling machines
• Drilling machines

to operate automatically with high precision and repeatability.

Thanks to computer-controlled machining, manufacturers can achieve:

• Serial production
• High precision manufacturing
• Reduced production time
• Lower operational costs

One of the most important accessories used in CNC machining systems is the CNC dividing head, also known as the NC rotary table.

What Is a CNC Dividing Head?

A CNC dividing head (NC rotary table) is a CNC machine accessory designed to simplify and improve the machining of workpieces by enabling controlled rotational movement.

Its most important capability is allowing workpieces to be machined at full 360-degree rotational positioning.

A dividing head typically consists of components such as:

• Main body
• Chuck
• Rotating handle
• Tailstock
• Support center
• Rotary chuck or live center systems

Converting 3-Axis Machines into 4- or 5-Axis Systems

One of the biggest advantages of CNC dividing heads is their ability to expand machining capabilities.

With a CNC dividing head, a standard 3-axis CNC vertical machining center can effectively operate as:

• A 4-axis CNC machine
• Or even a 5-axis CNC machining system

This additional rotational axis enables manufacturers to machine complex geometries much more efficiently.

Automatic Indexing and Smart Operation

Modern CNC dividing heads significantly improve manufacturing efficiency compared to traditional manual indexing systems.

In the past, dividing calculations required long and complicated manual computations.

Today’s advanced NC rotary tables can perform these calculations automatically and instantly, providing operators with faster and easier operation.

This results in:

• Reduced setup times
• Faster production
• Improved machining accuracy
• Higher operational efficiency

Areas of Use for CNC Dividing Heads

CNC dividing heads are widely used across many industries, including:

• Automotive sub-industry
• Textile machinery manufacturing
• Agricultural machinery production
• Fastener manufacturing
• Medical industry
• Aerospace industry
• Defense industry
• Mold manufacturing
• Accessory and precision component production

Advantages of CNC Dividing Heads

Modern CNC dividing heads include systems such as:

• Servo motors
• Rotary table bearings
• Gear systems
• Couplings

These systems provide numerous operational advantages.

High Efficiency and Time Savings

Automatic indexing and calculation systems significantly reduce production time and increase operational efficiency.

Easier Machining of Complex Parts

CNC dividing heads simplify the machining of:

• Complex geometries
• Precision components
• Critical parts requiring multi-angle machining

Precise Division on Cylindrical Parts

They allow cylindrical workpieces to be divided into different equal sections with extremely high precision.

Machining of Conical and Flat Surfaces

Dividing heads enable accurate indexing operations on:

• Conical parts
• Flat surfaces
• Angular geometries

Ideal for Complex Geometries

Rotary motion capability makes CNC dividing heads ideal for machining advanced and difficult part geometries that are impossible or inefficient with standard 3-axis machining alone.

The Importance of CNC Dividing Heads in Modern Manufacturing

In today’s manufacturing industry, adapting to developing technologies and maximizing production efficiency has become essential.

CNC machines already provide major advantages such as:

• Serial production capability
• Precision manufacturing
• Ease of operation
• Reduced labor dependency

CNC dividing heads further enhance these advantages by enabling multi-axis machining flexibility and improving the production of highly precise and complex components.

For this reason, CNC dividing heads are considered indispensable accessories in modern precision manufacturing environments.

For dividing head solutions tailored to your production needs, you can visit GNC Makina’s CNC Dividing Head page or contact our expert team directly for technical support and product recommendations.