1.Chain lifting system.Anti-breakage safety for chain.
2.Self-locking protective device,with double safety.
3.Anti-abrasion nylon slide block.
4.Automatic arm locking during lifting and automatic unlocking when the arm reaches the floor.
5.With self-supporting base,installation is possible on floor with poor surface anchorage.
6.Base with small ramps for easy drive through.
7.Folded steel posts with high rigidity.
8.Single hydraulic cylinder driving.
9.Asymmetrical arms,symmetrical posts.