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2. A short spiral drill can be used for dry digging, and a rotary drill can be used for wet digging. Equipped with punching hammer, the rotary excavator can be used to drill through the hard strata.
3. It can be expanded at the bottom of the hole, If the drilling tool is used. The rotary excavator adopts multi-layer telescopic drill pipe, which has less support time and low labor intensity.
4. Do not require mud circulating slag and cost saving, which is especially suitable for the construction of urban construction.
5. Hydraulic Oil models are selected according to local climate: 34#, 46# and 68#.
6. After the first time receiving of Rotary Drilling Rig, release diesel and clean the fuel tank. According to the climate, the diesel is added for the same model: -40#, -30#, -20#, -10# and 0#.
7. After 100 hours of all engines work, release and replace engine oil.
8. After 100 hours of all engines work, release and replace the coolant of the water tank.
9. Cummins engine, please timely contact the local service station for the record, so as to maintain it in future. Otherwise all consequences will be at your own peril, when out of warranty time.
Parameter
| model | DR-120 |
| Working mode | hydraulic oil cylinder pressure |
| Drilling diameter (mm) | Φ500-Φ1800 |
| drilling depth (m) | 5-40m |
| Diamension (mm) | 125002800X3550mm |
| Total weight (t) | 29T |
| Power head max output torque (KN.m) | 60/100KN.m |
| Rotary speed (r/min) | 10-50RPM |
| Main winch max lifting force | 150KN |
| Main winch max lifting speed | 50m/min |
| Assisting winch max lifting force | 15KN |
| Assiting winch max lifting speed | 50m/min |
| Mast sidewards inclination | ±4° |
| Mast forwards inclination | 4° |
| Max working pressure | 32Mpa |
| pilot pressure | 3.5Mpa |
| Travelling speed (km/h) | 4 km/h |
| Diesel engine power (KW) | 158KW ,cummins ,water cooling ,turbo charger |
