Efficient soft soil treatment SANY Sr280 Rotary Drill Rig

The SANY SR280 stands as a benchmark model among medium to large-sized rotary drilling rigs. It is renowned for its high torque, robust rock penetration, deep pile driving, high stability, and intelligent efficiency, making it ideal for large-scale infrastructure projects such as bridges, super high-rise buildings, and high-speed railways. The following provides a detailed exploration of its core dimensions:

Core performance: Fully optimized rock penetration and deep pile driving capabilities

Power head torque: maximum 280–285kN·m, leading in its class, with strong hard rock cutting capability.
Pressing force/pulling force: The pressing force of the pressing winch is 210–220kN, and the pulling force is 300kN, ensuring high efficiency in rock penetration and drill lifting.
Pore-forming capability: Maximum pore diameter of 2.5m; maximum pore depth of 84m for friction rods and 56m for mechanical locking rods, meeting the requirements of ultra-deep piles.
Drilling mode: Three gears: standard, low speed with high torque, and high speed with low torque, suitable for complex terrains such as soil, cobblestones, moderately weathered/strongly weathered rocks, etc.

II. Structure and Stability: Heavy-duty, durable, vibration-resistant, and tamper-resistant

Mast design: Truss-type/box-type anti-vibration mast, optimized for frequency resonance, with strong bending and compression resistance, and excellent vibration absorption capacity, reducing overall machine shaking.
Chassis and counterweight: The complete machine weighs 76–83t, featuring a low center of gravity layout. The track is deployed with a width of 4.3–4.5m, ensuring a reasonable ground pressure ratio and preventing rollover during heavy-load operations.
Winch system: The main winch boasts a lifting capacity of 300kN and a high speed of 65m/min, equipped with bottom protection and accelerated lowering; the auxiliary winch, with a lifting capacity of 110kN and a speed of 70m/min, ensures smooth compound movements.
Key components: The engine (CAT / Mitsubishi), hydraulic components, reducers, etc. are mostly international brands, ensuring high durability and reliability.

III. Intelligence and Efficiency: Adaptive Control, Construction Speed-up

Rock-adaptive: Automatic matching of torque, speed, and pressure, with automatic switching to high torque mode in hard rock conditions, reducing manual intervention.
Drill Rod Smart Vision: The machine lock rod displays the position of the pressure platform in real-time, preventing misoperations and damage to the drill rod.
Floating pre-tensioning: The steel wire rope is always tensioned, extending its lifespan and reducing malfunctions.
Centralized lubrication + intelligent screen: automatic timing lubrication; HD touch screen with 3ms refresh rate, providing intuitive data and convenient operation.
Full-stroke pressurization: With a maximum pressurization stroke of 15m, it is suitable for complex working conditions such as long casing, backfill layers, and gravel layers.

IV. Construction method and adaptability: multi-functional and wide coverage

Support rotary drilling, CFA method, pipe threader, etc., which can be quickly switched to accommodate various pile foundation constructions.
Compatible with friction rods, machine lock rods, and long spiral drill rods, meeting different depth and geological requirements.

V. Service and Guarantee: Brand Endorsement, Worry-free After-sales Service

SANY’s global service network provides quick response, comprehensive parts supply, and on-site support for key projects.
Remote monitoring, fault diagnosis, and data management can reduce operation and maintenance costs and improve attendance rates.