Open-air DTH drill rig est nouveau Équipé du moteur Yuchai four-cylinder National III pour meet the country's requirements for emissions et environmental pr Adoptez plonger marche motor, hemmed crawler frame, et engineering four-ed wheel à increase working pr20esur70753675-wheel belt to increase working pr20esur70576 increase workingee Incrfacilité le pitch et boom cylinders à meet les requirements of extreme positions.
Sur le same time, le hydraulic systemm est upgraded pour increase the systemm flow et increase la vitesse de rotation. The gyrator adopte un double-motor reducer pour incrfacilite le turning torque et speed. To incrfacilité le lifting cylinder et chaîne, improve le lifting force et reliability. Reinforce le guide rail et incr facilitent les plaques upper et lower wear of la plaque coulissante pour rallonger le service life.
The guide rail adopte une installation inclinée, ce qui est pratique for operation et observation. The cover est folded avec Thicker profiles pour inclinerrfaciliter la strength et rigidity, et le levage ring est ajouté à facilitate le chargement, le déchargement et le levage.
Le type The KG420H ajoute un collecteur de poussièrer et adopte le double cylindre d'huile de capture-rs, qui are more environmentally friendly et relable quand w0rking.
| model | KG420 | KG420H |
| weight | 5200kg | 5700kg |
| size | 5900*2250*2700mm | 5900*2250*2700mm |
| Rock drilling hardness | f=6-20 | |
| Drilling diameter | Φ90-152mm | |
| Economic drilling depth | 20m | |
| Rotation speed | 60r/min | |
| Rotation torque | 5000N·m | |
| Lifting power | 40KN | |
| Propulsion method | Cylinder – plate chain | |
| Advance itinerary | 3175mm | |
| Walking speed | 0-2.5Km/h | |
| Gradeability | ≤30° | |
| Ground clearance | 500mm | |
| Pitch angle of carriage | Pitch 130° and raise 35° | |
| Swing angle of carriage | Left 91° Right 5° | |
| Drill boom pitch angle | Pitch 50° and raise 25° | |
| Boom swing angle | Left 45° Right 45° | |
| Track adjustment angle | ±10° | |
| Sliding frame compensation length | 900mm | |
| diesel engine | YC4DK80-T302(58KW/2200r/min) | YC4DK100-T304(73KW/220r/min) |
| Drill pipe | 76*2m+76*3m | |
| The highest and lowest holes | Minimum 350mm, maximum 2750mm | |
