Inspection standards and accuracy requirements for spindle taper.
It is necessary to inspect the geometric accuracy and contact quality of the main spindle taper!
The spindle taper plays a crucial role as the contact surface with tools and tooling systems, and its precision and stability directly affect the machining quality, rigidity, and repeatability of position accuracy in machining centers and lathes. Common taper types include BT, HSK, CAT, and ISO, each differing in angle, dimensions, and structural design. To achieve accurate fitting between the spindle and the tool, it is necessary to inspect the geometric precision and contact quality of the spindle taper based on international standards such as ISO 1947 and DIN 2080. [Inspection Items] ■ Taper Angle Precision: A general requirement is within ±10 seconds. ■ Contact Ratio: It is necessary to have a surface contact of over 70% to prevent unstable machining and the risk of loosening due to point contact. ■ Taper Surface Runout: For high-precision machining, it is generally kept within 2μm. ■ Surface Roughness (Ra): To improve clamping rigidity and reduce wear, a Ra of less than 0.2μm is desired. *For more details, please download the PDF or feel free to contact us.
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Our company was established in 1977, starting with the development of dedicated machines. As we progressed with in-house development, we deeply recognized the importance of spindles. In 1998, we introduced repair and manufacturing technology for high-frequency spindles from Europe, and in addition to repairing these high-frequency spindles, we have also been engaged in the research and development of built-in high-speed spindles. With the management philosophy of "Quality First," we aim to enhance our customers' competitiveness by continuously developing high-quality built-in high-speed spindles. Additionally, in addition to mass production, we provide specialized services for machine tool manufacturers with specific needs for built-in high-speed spindles, including design, development, assembly, and testing.