① Small size

The internal circulation method using a cycler is adopted, and the outer diameter of the ball screw nut is 20-30% smaller than that of the circulation tube nut.

② Reduce quality by more than 50%

Adopting a small nut shape, the mass of DK type is reduced by about 50% compared to the circulating tube nut and about 70% compared to DIK type, thus reducing the inertia force during acceleration and deceleration.

③ Good balance

The trackers are evenly arranged on the circumference, and the balance of the steel ball screw nut during rolling is excellent.

④ No external circulation, no matter how

Due to the absence of a circulation tube, there will be no unexpected external impact on the nut that could cause damage to the pipeline.