Drilling depth range: 1500m--7000m

V-belts or chain transimission. There are two type of transmission for V-belt, including I,II,III linkage drive and compound V-belts box drive. For chain transmission, "diesel engine + coupling gearbox + compound chain box" type is used, with high transmitting efficiency and be able to meet different customers' requirements.

Main brake adopts hydraulic disc brake, and stand-by brake uses electromagnetic eddy current brake. Drawworks can be gear shifted by air remote control without parking, realizing easy and reliable operation.

Drawworks of drilling rigs with drilling depth ranging above 4000m are designed as low height installation, and "higher front platform, lower back platform" designed substructure, which is convenient for the power unit and transmission unit to be installed at low height.

PLC intelligent control system is optional, meeting the need for drillers' intelligent operation.

Integral rig shift unit can be equipped with, meeting short distance transportation requirements when drilling cluster-well.