Contents:
In this article, we will discuss optional equipment for CNC milling machines, exploring how these components function and their role in material machining.
Vacuum table
The vacuum table secures the workpiece onto the machine’s working area through special holes.
It holds the workpiece across its entire surface, preventing shifting and reducing material waste. Unlike mechanical clamps, it leaves no splits or cracks. The vacuum table offers a fast and efficient way to secure material to the worktable.

Aspiration system
An aspiration system is an industrial stationary dust extractor with a corrugated hose and a brush attached to the spindle. It removes chips and dust during operation, directing them into a collection bag. Advanced aspiration systems not only keep the workspace clean but also filter the air, improving overall safety and efficiency.

DSP controller
The DSP controller is a remote control device that connects to the CNC machine. While the machine is running, the operator can adjust program parameters, change spindle speed, set the zero point, or stop the program. It also allows running layouts from a USB stick, eliminating the need for a dedicated computer to control the CNC router.

Coolant system
A coolant system is essential when machining metals, preventing overheating of both the tool and the material. A cooling liquid—such as water, oil, or an emulsion—is supplied to the milling point through a nozzle. The liquid is then collected, filtered, and recirculated back into the working area via a pump.

Rotary device
A rotary device enables the milling and engraving of cylindrical workpieces, expanding the machine’s capabilities. It transforms the CNC milling machine into a versatile unit with functions similar to a lathe. This system allows for the production of furniture legs, columns, balusters, chess pieces, souvenirs, and more.

Automatic tool change
An automatic tool change system eliminates the need for manual tool replacement. The operator simply selects the required tools in the machining program, places them in the tool holders, configures the settings, and starts the program. The system handles all tool changes automatically, increasing efficiency and reducing downtime.

Tool height sensor
The tool height sensor detects the tool’s height along the Z-axis by closing a contact when the tool touches the metal plate of the sensor. This simplifies tool changes and ensures precise cutting depth. The sensor is designed to withstand mechanical stress, chips, and coolant exposure.

Gantry leveling system
This system automatically aligns the gantry along the Y-axis. Misalignment can cause the gantry to become non-perpendicular, leading to drive jamming and missed steps. The gantry leveling system prevents these issues, ensuring smooth and accurate movement.

Conclusion
We have explored eight optional features that enhance the functionality and ease of use of CNC milling machines. These upgrades improve precision, efficiency, and overall machining quality, making them valuable additions for both small workshops and industrial production environments.