KG920B Medium Pressure Crawler Drilling Rig
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The KG920B medium pressure crawler drilling rig is another new version updated on the basis of KY125 series machine. As a powerful construction machine, its pneumatic system, hydraulic system, drill arm components, walking parts are all optimized and upgraded. The YC4D80 type diesel engine (58KW, 2400r/min) was used to replace the original type. Thus the machine now can walk up a slope of 30°, and the rotating speed is also greatly enhanced. The drilling angle becomes more reasonable.
In the form below, you can see the advantage of our KG920A medium pressure crawler drilling rig over the KY125 crawler drill. If you are interested in it, just contact us at any time.
Advantages of KG920B over KY125| KG920B | ">KY125 | Advantage | |
| Walking parts | Motor and reducer | Ball piston motor(direct connecting) | Less pressure and longer service life for the motor |
| Walking pressure | 11Mpa | 14-16Mpa | |
| Drill arm | New type drill arm | Drilling horizontal and vertical holes at the same time; low height of the horizontal hole | |
| Pneumatic systems | Live type impacting air valve | Ball valve | Easier control |
| Rotation speed | 83r/min (diesel engine 1700r/min) 107r/min (diesel engine 2200r/min) | 55r/min | 50% higher rotation speed |
| Hydraulic system | 30 pump, large new type valve group, new type flow divider, new type connector | 19.2 pump | Higher flow, lower resistance, and better appearance |
| Feeding speed | 450mm/s | 336mm/s | 40% higher |
| Rock hardness | F=6-20 |
| Hole diameter | Ф80-105mm |
| Economical drill depth | 25m |
| Pressure | 1.0-1.7Mpa |
| Air consumption | 9-16m³/min |
| Rotating speed | 0-107r/min |
| Rotation torque | 1400N.m |
| Lifting capacity | 15000N |
| Propulsion type | Hydro-cylinder-chain |
| Propulsion length | 3000mm |
| Drill rod | Φ64/Φ76×3000mm |
| Gradeability | 30° |
| Ground clearance | 290mm |
| Walking speed | 0-1.8km/h |
| Carriage rising angle | Down 135°, up 5°, total 140° |
| Carriage swing angle | Left 100°, right 45°, total 145° |
| Drill arm pitch angle | Down 50°, up 25°, total 75° |
| Drill arm swing angle | Left 44°, right 45°, total 89° |
| Carriage compensation | 900mm |
| Diesel Engine | YC4D80 (58KW, 2400r/min) |
| Overall dimension (L×W×H) | 4400×2200×2050mm |
| Total weight | 4200kg |
| Drill bit diameter | 90mm | 105mm | 115mm |
| Drill rod (Diameter×L) | Φ64x3000mm | Φ64x3000mm | Φ76x3000mm |
| Drill hammer | CW930 | HD45S | HD45A |
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