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Key Features and Applications:
High Precision and High Balancing Quality: Manufactured with extreme precision (typically balanced to G2.5 or higher grade), ensuring minimal vibration at high rotational speeds, which guarantees superior surface finish and extends tool life.
High Rigidity: It utilizes a double-sided contact system (e.g., the HSK standard with a 1:10 taper) where both the tapered shank and the face contact the spindle simultaneously. This creates a seamless connection with the spindle wall, offering significantly higher rigidity than traditional tool holders and enabling it to withstand greater cutting forces.
Suitability for High Speeds: Designed specifically for high-speed machining, its lightweight and high-balance characteristics make it ideal for the high-speed operation of motorized spindles (with speeds reaching tens of thousands of RPM).
Fast Tool Changing: HSK holders feature a hollow-short-taper design clamped by internal collets within the spindle, allowing for rapid tool changes and high repeatability positioning accuracy.
Primary Type: The HSK interface is the most mainstream and representative type. It comes in various specifications (e.g., HSK-A, HSK-E) according to different standards (like DIN 69893, ISO 12164), suitable for a wide range of applications from heavy-duty cutting to ultra-high-speed finishing.
Core Function:
It acts as the critical bridge connecting the Motorized Spindle and the Cutting Tool, responsible for transmitting the spindle's rotational power and precision to the tool with minimal loss.
