Permanent Magnetic Chuck for CNC milling machine: 1. A multifunctional magnet permanent magnet device which combined with rotation magnetic core and level flat surface fixed magnetic steel. 2.A new workpiece holding concept. 3. Suitable for processing of middle and small workpieces . 4. Apply vertical type and horizontal CNC to comprehensive cuttingfinisher and milling machine. 5. The products can do cuttingprocessing of five-side, drilling , tapping, groove and channeling in one time, which can savemanufacturing process to reduce excessive manufacturing process. 6.Improve work efficiency and reduce manufacturing cost in a large scale. 7. The products can assemble the quantity, position and space of magnetic force worktable ina free style according to the size of the workpiece . 8. Not only improve the manufacturingefficiency, but also reach the requirement of accuracy.