| Brand | sany | Model | SR255S |
| Type | Rotary Drilling Rig | Year of Manufacture | 2024 |
| Running Hours | 2500H | Max. Drilling Depth | 58M |
| Max. TORQUE OUTPUT | 255kN·m | Max. DRILLING DIA | 2200mm |
| Engine | Commins |
Achieve the deep synergy of rock penetration capability, operational stability, and job site efficiency with this SANY SR255 medium-duty rotary drilling rig. Purpose-built for building, municipal, and bridge foundation projects, this model is designed around a rated power head output torque of 255 kN·m, complemented by a maximum drilling depth of 73 meters with friction kelly bar and a maximum drilling diameter of 2,200 mm, establishing a dependable foundation for piling performance and geological adaptability within its class. Maintained in excellent overall working condition with all core components performing superbly, this rig represents a strategic asset for contractors seeking efficient fleet expansion and controlled procurement costs—delivering a rare combination of proven performance and cost advantage.
This SANY SR255 rotary drilling rig is powered by a Cummins QSL9 turbocharged diesel engine with electronic fuel injection, compliant with China V emission standards while delivering robust and stable power output. The power head delivers a rated output torque of 255 kN·m, with a two-speed infinitely variable rotation range of 5-34 rpm, enabling precise power matching across diverse ground conditions. The rig possesses strong rock penetration capability, efficiently drilling through strata with uniaxial compressive strength of up to 100 MPa and drillability grades below Level 8, while the dual-ratio crowd cylinder technology amplifies crowd and pull-up forces, further enhancing penetration efficiency and operational smoothness. With a maximum drilling diameter of 2,200 mm and drilling depths of 73 m (friction kelly bar) / 58 m (lock-type kelly bar), it flexibly adapts to complex conditions ranging from soft soil layers to hard rock strata.
This SANY SR255 unit retains its original factory paint, with no structural refurbishment evident—a clear testament to its standardized service history and diligent routine maintenance. Despite active site deployment, the machine continues to operate with smooth performance, producing zero abnormal noise from either the hydraulic system or powertrain, demonstrating SANY's mature system integration and assembly capabilities within the SR series rotary drilling rig lineup. The deep coordination between the engine and core hydraulic components—including pumps and main control valves—ensures long-term durability and system reliability during rotary drilling operations, effectively reducing the risk of unplanned downtime under high-intensity working conditions.
For enterprises looking to immediately strengthen their piling capabilities with a "ready-to-work" asset, this used SANY SR255 rotary drilling rig is a premium investment. With its dependable China V power configuration and field-proven machine stability, the equipment holds strong applicability in both domestic and international foundation engineering markets, ready for immediate deployment . Do not miss this opportunity to secure a machine that integrates SANY's mature ergonomic rotary drilling design, the high-efficiency characteristics of the Cummins power system, and resilient adaptability to diverse and complex ground conditions.
Cost-Effective Without Compromising Quality
Used construction equipment typically costs 30%–70% less than new machines, giving you more value for your investment without sacrificing performance. The savings can be reinvested into other critical areas of your project or business.
Short Lead Time, Ready to Work
Skip the long factory production and delivery schedules. With used equipment, you get machines that are available immediately, helping you avoid costly delays and keep your projects on track.
Easy Access to Parts & Service
Most pre-owned models come with well-established service networks and readily available spare parts, ensuring quick maintenance and minimal downtime—no long waits for replacements.
