KG520/KG520H open-pit DTH drilling rig is a new equipment upgraded according to the national requirements for environmental protection. Equipped with Yuchai four-cylinder national three-engine to meet the national requirements for emissions and environmental protection. Adopt plunger walking motor, flanging crawler frame and engineering four-wheel belt to improve working pressure and climbing performance. Increase the pitch and boom cylinders to meet the requirements of extreme position. At the same time, upgrade the hydraulic system, increase the system flow and improve the rotary speed. The gyrator adopts a large motor reducer to increase the rotating torque and speed. Increase the lifting cylinder and chain to improve the lifting force and reliability. Strengthen the guide rail and increase the upper and lower wear plates of the skateboard to prolong the service life. 

The guide rail is installed obliquely, which is convenient for operation and observation. The shell is folded with thickened profiles to increase strength and rigidity, and lifting rings are added to facilitate loading, unloading and lifting.
 
The KG520H model is equipped with a dust collector, which increases the dust collection air volume and improves the dust collection effect. It is more environmentally friendly and reliable when working.