GS-20-type projects, well drilling rig using a large gantry-shaped tower are ups and downs and host shift hydraulic control, dual hoist group, large module, hyperboloid turntable, and with a reverse circulation pumps, more adapted to complex geological conditions, construction requirements; GS-20-type projects, well drilling rig has become the public and railway bridges, skyscrapers, ports, dams, large diameter bored piles and deep irrigation wells will be equipped with drilling equipment. 
 Technical parameters 
 Drilling depth (m) 80 
 Hole diameter (mm) 2000 
 Inner diameter of turntable (mm) 500 
 Wheel speed (forward and reverse) (r / min) 11; 17; 22 
 26; 32; 48 
 Rated output torque turntable (KN.m) 32 
 Main hoist lifting capacity (single rope) (KN) 40 
 Auxiliary hoist lifting capacity (single rope) (KN) 30 
 Carrying capacity of the tap (KN) 350 
 Host supporting power (KW) 37 
 Work status (mm) 5200 × 2570 × 10290 
 Transport status (mm) 10200 × 2570 × 2500 
 Weight (kg) 11500