| Engine | Mitsubishi 6D24-TL |
| Engine Power | 250 kW |
| Engine Speed | 2000 rpm |
| Max. Pile Diameter | 2300 mm |
| Max. Pile Depth | 70 m |
| Rotary Head Torque | 250 kN·m |
| Rotary Head Speed | 7～26 rpm |
| Main Winch Pulling Force | 256 kN |
| Crowd System Pressure | 180 kN |
| Crowd System Pull-out Force | 256 kN |
| Main Winch Max. Speed | 63 m/min |
Powerful performance SANY SR250 Rotary Drilling Rig
Description
Detailed description
Description
Winch acceleration technology
Main winch combined drive, maximum lifting speed of 63m/min, drilling bucket lowering speed increased by 50%, and the drilling efficiency of the whole machine is 15% higher than that of the same level competitors;
Three level drilling mode
Standard gear, low-speed high torque rock gear, high-speed soil throwing gear, one click switching between soft and hard strata; The pressurized oil cylinder has sufficient thrust, and the drilling of pebbles and soft rocks is not stuck;
Windmill safety protection
Standard hole bottom contact protection, automatic locking of the drilling bucket when it lands, to prevent problems such as wire rope disorder, wear and breakage.
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