Control technology from Huizhi Holdings is with the mechanical, electronic and hydraulic integration; output parameters of frequency converter are matched with the characteristics of the motor; PLC programme can be designed according to the requlrement of the customer. It has functions of monitoring, alarming, self-diagnosis, protection and interlocking, which conform to drilling conditlon.

Rotating head adopts two ducts to supply oil to tilt hydro cylinder, so link can incline forward and swing backward; as each duct is sealed doubly, the leakage is reduced greatly and the reliability of the equipment is improved; the rotating head can rotate with drilling tools while tripping, so the settlement of the accident is easier. Simple inserted inner housing structure; back-up tong and IBOP oil cylinder don't rotate with rotating head.  

It has double load channels. The bearing of gearbox bears the weight during drilling and the bearing of rotating head bears the weight during tripping, therefore, the service life of bearings and main shaft will be prolonged and anti-vertical vibration of drilling string will be improved.           

L-type back up tong applied is easy for replacing tong head, tong dies, upper&lower IBOP and saver sub.

The hydraulic pump can be turned off while drilling and directional well drilling, thus the service life of the pump will be prolonged. In case that hydraulic system breaks down, drilling and reaming can be continued.

Integrated hydraulic system and oil tank are placed on the body of the top drive; the system sends out low heat, which is convenient for installation.

Scientific design, compact structure and reasonable arrangement make onsite maintencance, parts replacement, installation and uninstallation much more easler.

Top drive operating temperature -45°C, storage temperature -60°C.

Finally, huizhi holdings welcomes you!