n Functions and Features:
1) The machine is used for stone coring in stone quarrying. The max. coring depth is 30mt.
2) It has the following features: high drilling efficiency, long life, easy hole-joining, high precision, etc.
3) The walking motor and the inverter are used for automatic power feeding device.
4) The real-time main motor current and the walking motor rotation speed are displayed on the control platform.
5) The power control cable between the main machine and control platform is connected by the aviation plugs.
6) The operating and installing of the machine are convenient.
7) The control mode adopts electrical automatic control principle to maximize the drilling speed and achieve the energy-saving and emission reduction effect. Meanwhile, it reduces the intensity of labor.
 
n Technical Parameters:
Model: ZY-75HD-A ZY-75HD-A1 Diameter of drilling hole: Φ75mm Φ75mm Max. depth of drill hole: 30m 30m Speed of drilling: 3-5m/h 3-5m/h Min. water-supply pressure: 0.1Mpa 0.1Mpa Single feeding distance: 1.5m 1.5m Power feeding device: Stepless speed controlled by two inverters Stepless speed controlled by single inverter Drilling direction: Horizontal Horizontal Net weight: 850kg 800kg