The floating boring head with ER collet is a precision accessory used in CNC machining centers (computer numerical control) and other machine tools such as single-spindle, multi-spindle lathes, milling machines, drills, and transfer machines. This type of tool holder is designed to ensure maximum precision and flexibility during machining operations, particularly when it is necessary to compensate for minor misalignments or tolerances between the tool and the workpiece. Thanks to its versatility, it is widely used in industrial and artisanal contexts where quality and reliability are paramount.

The ER collet DIN 6499/B, included in this system, is a widely used and appreciated clamping mechanism for cutting tools such as boring tools, end mills, and taps. The ER system is known for its ability to provide a secure, precise, and uniform grip, minimizing vibrations and improving machining quality. The "floating" feature of the tool holder is made possible by an oscillation mechanism on a double cage of axial bearings, which compensates for minor misalignments between the tool and the workpiece. This floating action is particularly useful in boring operations, where precision is crucial for achieving holes with tight tolerances and perfectly finished surfaces. Additionally, these devices can also be used for rigid tapping, ensuring stability and precision even in high-intensity operations.

Floating boring heads are made from certified high-alloy steel, subjected to heat treatments such as hardening and tempering, ensuring remarkable wear resistance and long-lasting durability. The surfaces are fully ground and treated with special finishes to improve corrosion resistance and reduce friction, maintaining high performance even under intensive working conditions. The entire production cycle is carried out in Italian facilities using high-precision machine tools, with each phase rigorously quality-controlled to ensure that every device meets the highest standards.

The floating boring head is adjusted with minimal axial play, and the floating action is provided by radial oscillation. To keep the boring tool perfectly centered, the tool holder is equipped with a self-centering pin pushed by an adjustable spring based on the size of the mounted boring tool. This feature allows the system to adapt to different tool sizes, ensuring maximum precision and stability during machining. The radial movement capability is approximately ±1 mm from the center, allowing for a wide range of movements to adapt to various machining needs, even in particularly complex contexts.