An open-air DTH drill rig is new equipment upgraded in response to the country’s environmental protection requirements. Equipped with Yuchai’s four-cylinder National III engine to meet the country’s requirements for emissions and environmental protection. Adopting plunger walking motor, engineering four-wheel area, increase working pressure and increase climbing performance. Increase the pitch and boom cylinders to meet the requirements of extreme positions.
At the same time, the hydraulic system is upgraded to increase the system flow and increase the rotation speed. Optimize the lifting cylinder to improve reliability. The guide rail adopts inclined installation, which is convenient for operation and observation. The cover adopts thicker profiles and adds hoisting rings, which is convenient for loading, unloading, and hoisting.
The KG320H type adds a dust collector and adopts double dust-catching cylinders, which are more environmentally friendly and reliable when working.
| model | KG320 | KG320H |
| weight | 4500kg | 4700kg |
| size | 6050*2360*2700mm | 6050*2360*2700mm |
| Rock drilling hardness | f=6-20 | |
| Drilling diameter | Φ80-105mm | |
| Economic drilling depth | 25m | |
| Rotation speed | 140r/min | |
| Rotation torque | 1850N·m | |
| Lifting power | 20KN | |
| Propulsion method | Cylinder – plate chain | |
| Advance itinerary | 3820mm | |
| Walking speed | 0-2.2Km/h | |
| Gradeability | ≤30° | |
| Ground clearance | 465mm | |
| Pitch angle of carriage | Pitch 135° and raise 50° | |
| Swing angle of carriage | Left 100° Right 45° | |
| Drill boom pitch angle | Pitch 50° and raise 25° | |
| Boom swing angle | Left 44° Right 45° | |
| Sliding frame compensation length | 900mm | |
| diesel engine | Yuchai Power YCD4R23T8-80(59KW/2400r/min) | |
| Drill pipe | 64*3m | |
| The highest and lowest holes | Minimum 350mm, maximum 2750mm | |
