GDM750

The GDM750 was innovatively designed and built to be the toughest and most powerful top drive available at the best price. It is the first true 750 ton unit: this is NOT just a 500 ton with a little more torque boosting power. The gearbox is virtually indestructible, which separates us from the competition. Available in two A/C motor options to fulfill your drilling needs.

GDM850

This top drive is the definition of The Global Drilling Machine top drive drilling system. As the original model, the GDM850 was introduced to set new standards for performance and power. We paid close attention to what drilling professionals were looking for in a top drive and engineered the most technologically advanced top drive drilling system on the market. The end result is a combination of a heavy duty top drive and a portable top drive all in one. It includes the standard features of the GDM line and gives drilling companies options for larger rigs.

Source:- http://www.globaldrillingsupport.com/gdm-750850/

Global Drilling Support