1. Realize the automation of lifting head rope replacement, the rope does not fall to the ground, engineer only connect the rope head at the wellhead, all dangerous operations are completed by the rope change vehicle, with fewer people, shorter time and lower labor intensity.

2. The linear continuous retractable rope technology is adopted to realize the continuous and rapid retractable of the wire rope in a straight line, shorten the retractable rope time, and improve the rope change efficiency.

3. Innovative use of statically indeterminate double helix non-destructive clamping technology to ensure that the head rope is not damaged and effectively prolong the service life of the head rope.

4. The use of constant tension difference synchronous retraction and release technology eliminates the hidden danger of sliding rope accidents caused by tension difference exceeding the limit. The retraction and release rope speed is synchronized with the running speed of the hoist, and the comprehensive pre-stretching reduces the number of rope adjustments after rope change.