As a core component of the top drive device, the power swivel is installed below the traveling block hook of the derrick, connected to the high-pressure hose at the upper end and the drilling tool or internal blowout preventer at the lower end, directly providing rotational power for the drill string. The DSL series power swivels are built in accordance with international and industry standards such as API Spec 8C and SY/T 5530-2013.
- It is installed as a whole on the skid base for convenient transportation;
- It can provide smooth and shock-free torque, reducing damage to the drill string;
- Suitable for most drilling and workover derricks;
- The torque limit of the power swivel can be set;
- Stable and reliable in use, easy to maintain.

