| Engine (Brand + Model) | Caterpillar CAT C9STH 4-stroke water-cooled EFI turbocharged intercooled diesel engine |
| Engine Power | 250kW |
| Engine Rated Speed | 2000rpm |
| Max. Drilling Diameter | 2300mm |
| Max. Drilling Depth | 66m |
| Max. Rotary Head Torque | 220kN·m |
| Rotary Head Speed Range | 7~26rpm |
| Main Winch Max. Lifting Force | 240kN (1st layer) |
| Crowd System Max. Push Force | 180kN |
| Crowd System Max. Pull-back Force | 240kN |
| Main Winch Max. Lifting Speed | 70m/min |
Powerful performance SANY SR220C Rotary Drilling Rig
Description
Detailed description
Description
The rated torque of the power head is 220kN · m, and the speed can be adjusted within the range of 7-26rpm. It can efficiently drill in soft soil, sand layers, pebbles, and moderately weathered rocks; The pressurized winch has a pressure of 180kN and a lifting force of 240kN, with strong drilling and pipe pulling capabilities, making it difficult to crawl during deep hole construction.
The maximum borehole diameter is 2.3m and the maximum drilling depth is 66m, suitable for high-rise building construction, municipal bridges, high-speed bridge piers, and mainstream pile types of small wind power foundations.
High power and reliable power
Equipped with a 250kW Mitsubishi/Cummins National IV engine, it provides stable and continuous output under heavy loads; The electric control positive flow hydraulic system distributes power according to demand, reducing comprehensive fuel consumption by 10% -15% compared to the old model, and providing better economic efficiency for long-term continuous construction.
High efficiency of hoisting operation
The first layer of the main winch has a lifting force of 240kN and a maximum lifting speed of 70m/min. It has a fast circulation speed for lifting soil and lowering drill pipes, and its daily footage is ahead of other small and medium-sized models in the same class.
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