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A used Sany SR250 rotary drilling rig is for sale. The year of manufacturing is 2014. The maximum diameter and depth are 2300mm and 70m. At present, the working hours are 7000 hours. The equipment is in good condition and equipped with 5 * 470 * 14.5m friction kelly bar. The price is $187500.00.
Sany SR250 rotary drilling rig can switch between rotary drilling method and CFA (continuous flight auger) method after changing different working devices (drill pipes).
Sany SR250 rotary drilling rig is a multi-functional and high-efficiency cast-in-place pile drilling equipment. It is widely used in the construction of pile foundation projects such as water conservancy projects, high-rise buildings, urban traffic construction, railways, highways and bridges.
The SR250 rotary drilling rig adopts the hydraulic expandable crawler chassis, which can take off and fall by itself, fold the mast, automatically adjust the perpendicularity, automatically detect the hole depth, directly display the working state parameters on the touch screen and monitor, and the whole machine operation adopts hydraulic pilot control and PLC automation of load sensing, which is convenient, dexterous and practical.
| Parameter Spec Name | Technical Data | |
|---|---|---|
| Name | Rotary Drilling Rig | |
| Brand | Sany | |
| Model | SR250 | |
| Max. drilling diameter | 2300mm | |
| Max. drilling depth | 70m | |
| Engine | Engine power | 261kw |
| Engine model | C9 HHP | |
| Rated engine speed | 800kw/rpm | |
| Weight of the whole machine | 68t | |
| Power head | Maximum torque | 250kN.m |
| Maximum speed | 7～26rpm | |
| Cylinder | Maximum pressure | 208kN |
| Maximum lifting force | 200kN | |
| Maximum stroke | 5300m | |
| Main winch | Maximum lifting force | 256kN |
| Maximum winch speed | 63m/min | |
| Diameter of main winch wire rope | 32mm | |
| Auxiliary Winch | Maximum lifting force | 110kN |
| Maximum winch speed | 70m/min | |
| Diameter of auxiliary winch wire rope | 20mm | |
| Kelly Bar | 5*470*14.5m friction kelly bar | |
| Drill mast roll angle | 5° | |
| Forward inclination angle of drilling mast | ±5° | |
| Track length | 4300mm | |
| Tail turning radius | 4780mm | |
The Sany SR250 rotary drilling rig can reach a maximum drilling diameter of 2300mm and a maximum depth of 70m.
Yes. By changing different working devices and drill pipes, the Sany SR250 can switch flexibly between the rotary drilling method and the CFA (continuous flight auger) method.
This model is equipped with a C9 HHP engine model offering a powerful engine output of 261kw and a rated speed of 800kw/rpm.
It features automatic mast folding, automatic perpendicularity adjustment, and automatic hole depth detection. Important working parameters are displayed directly on a touch screen and monitor via PLC automation and load sensing.
This used unit was manufactured in 2014, has recorded 7000 working hours, and is configured with a 5 * 470 * 14.5m friction kelly bar.
It is widely used in high-efficiency cast-in-place pile drilling applications for municipal construction, railways, highways, bridges, high-rise buildings, and water conservancy projects.
