Our KG series borehole drilling rig is an updated version of our KY
series hole drilling machine. The previous simple structure and
reliable performance remain the same. However the hydraulic system,
walking components, gyrator, driving system, pneumatic system,
drill arm components, carriage components, and so on, are all
optimized or updated.
As a kind of professional blasthole drilling equipment, this
borehole drilling rig can be widely used for rock blasting
operations in many cases like small or medium open-pit mines, water
conservancy project, hydropower station building, road
construction, and so on. The suitable rock hardness is in the range
of F = 6-20. The diameter of the hole could be from 80mm to 165mm,
while the economical drilling depth is 10-25m.
The KG920A medium pressure crawler drilling rig is an updated
version of KY125 series rock hole driller. The pneumatic system,
hydraulic system, drill arm components, walking parts are all
optimized and upgraded. Thus the machine has stronger
gradeability-the steepest slope could be in 30°. Besides, the
rotating speed could be from 0r/min to 107r/min.
A detailed comparison between the KG920A and KY125 drilling
machinery has been made in the form below. If you are interested in
it, just contact us at any time.
Advantages of KG920A compare with KY125
| KG920A | 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 pumps, large new type valve group, new type flow divider, new
type connector | 16 pumps | Higher flow, lower resistance, and better appearance |
| Feeding speed | 450mm/s | 336mm/s | 40% higher feeding speed |
Specifications
| Rock hardness | F = 6-20 |
| Hole diameter | Ф80-105mm |
| Economical drill depth | 25m |
| Pressure | 1.0-1.7Mpa |
| Air consumption | 9-13m³/min |
| Rotating speed | 0-107r/min |
| Rotation torque | 1400N.m |
| Lifting capacity | 15000N |
| Propulsion type | Hydro-cylinder-chain |
| Propulsion length | 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 |
| Drill rod | Φ64/Φ76×3000mm |
| Diesel Engine | YC2108 (33KW, 2200r/min) |
| Overall dimension (L×W×H) | 4400×2200×2050mm |
| Total weight | 4000kg |
Recommend spare parts for KG920A medium pressure crawler drilling
rig
| Drill bit diameter | 90mm |
| Drill rod (Diameter×L) | Φ76×2000mm |
| Drill hammer | 90 |
