The ZR220A Rotary Drilling Rig is a high-performance drilling machine developed by Zoomlion, following the success of the ZR200 model. Designed for efficiency and reliability, this rig features an extendable crawler chassis, a self-erecting folding mast, and retractable drill pipes. It integrates advanced hydraulic load-sensing control, an all-in-one electronic control and display system, and uses top-tier components from globally renowned brands, including the engine, hydraulic parts, speed reducer, four-wheel drive, and electronic systems.
The ZR220A offers a wide range of intelligent functions such as automatic engine power control, hole depth detection, verticality leveling, rotary positioning, real-time working status display, and anti-misoperation protection. It delivers excellent stability, strong drilling torque, high productivity, and superior maneuverability, making it ideal for various construction environments. Its advanced control system ensures ease of operation and cost-effectiveness.
Key performance features include:
- A Cummins QSL-9 turbocharged, intercooled, and electronically controlled engine that delivers 252 kW of power, suitable for operations above 4,500 meters altitude.
- Enhanced hoisting drum design with improved rope grooves to significantly increase steel wire rope lifespan.
- A power head equipped with a heavy-duty shock absorber that effectively reduces impact when the drill rod falls.
- A unique pressure lubrication circuit in the power head that prevents oil leakage and mutual pressure issues between hydraulic and lubrication systems.
- A non-pressure structure on the balance valve of the luffing and ram cylinders ensures smooth movement of the mast and minimizes impact during operation.
- Real-time monitoring capabilities, multiple alarm functions, and automatic engine idling for enhanced safety and efficiency.
- An automatic mast leveling system that not only levels the mast but also monitors its landing and stability.
- A strict logic interlock system to prevent operator errors.
- A precise hole depth measuring device that keeps depth error within 10 cm and drilling accuracy at 1 cm.
- A 10.4-inch true color display providing dynamic information on engine speed, fuel consumption, fault diagnostics, mast verticality, and operational status.
- An intelligent fault detection system that continuously monitors and displays the condition of all actuators.
The ZR220A is a versatile and powerful solution for modern drilling projects, combining innovation, durability, and user-friendly technology. Whether you're working in challenging terrain or demanding environments, this rig is built to deliver consistent performance and long-term value.
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