Gearbox for engineering machinery
In recent years, HDM has developed over one hundred types of gearboxes for engineering machinery. This range includes slewing, winching, super-lifting, and traveling gearboxes for the complete series of automobile cranes and crawler cranes. HDM also produces gearboxes for all series of vertical agitators, as well as series gearboxes for power head devices used in rotary drilling rigs, dooryard drilling machines, and water well drilling rigs. Customers have praised the quality and functionality of these products.


Detailed introduction
In recent years, HDM has developed over one hundred types of gearboxes for engineering machinery. This includes slewing, winching, super-lifting, and travelling gearboxes for the complete range of automobile cranes and crawler cranes, as well as gearboxes for full-series vertical agitators. Additionally, HDM provides series gearboxes for power head devices used in rotary drilling rigs, dooryard drilling machines, and water well drilling rigs. The quality and functionality of these products have received praise from customers.