The ER16 sealed collets according to DIN ISO 15488 (DIN 6499) are designed for precision clamping of cylindrical tools in CNC machining centers, milling machines and tool lathes. This solid sealed collet design is specifically developed for applications using through-tool coolant, allowing the coolant to flow directly to the cutting edges.

The construction of the ER16 sealed collet features short front slots, which ensure effective coolant sealing within the tool holding system. The coolant flows through the tool lubrication channels, improving cooling efficiency and facilitating chip evacuation during machining operations.

The collet is manufactured with multiple 4+4 slot segments, ensuring a uniform distribution of clamping forces and high structural rigidity. This design guarantees an average runout accuracy ≤ 0.008 mm, which is essential for high-precision machining operations.

The ER16 collet clamping range is ±0.1 mm, providing stable tool holding and proper adaptability to cylindrical tool shanks. The system is suitable for applications with coolant pressures up to 120 bar, making it ideal for high pressure coolant machining (HPC).

To ensure proper sealing performance, ER16 sealed collets must be used only with solid cylindrical tools having a shank diameter exactly matching the nominal collet diameter, inserted along the entire clamping length.

These collets are widely used in precision machining, high-productivity CNC manufacturing, automotive component production, tool manufacturing and carbide tooling applications, where thermal stability and precise tool holding are critical.

Thanks to their excellent runout accuracy, structural rigidity and ability to operate with high pressure coolant, ER16 sealed collets DIN ISO 15488 represent a reliable solution for optimizing modern machining processes.