loading
QAY240
| Availability: | |
|---|---|
| Quantity: | |
Product Introduction
The QAY240 is a high-performance 240-tonne all-terrain crane with a rated lifting capacity of 240 tonnes and a maximum basic boom lifting moment of 7797 kN·m. The main boom extends to 67 metres, with a maximum lifting height of 85.7 metres when combined with the jib, offering extensive operational coverage. Powered by dual engines – 420kW lower chassis and 194kW upper chassis – it achieves a maximum travel speed of 71km/h and a maximum gradient of 48%, ensuring efficient site transfers. Equipped with electro-hydraulic proportional controls and an intelligent safety system, it delivers precise movements and excellent micro-manoeuvrability, while fully extended outriggers provide stable support. With an overall weight of 72 tonnes and compact dimensions, it offers excellent manoeuvrability. Suitable for heavy-duty lifting in wind power, bridge construction, petrochemical, and infrastructure projects, it serves as a reliable lifting solution for medium to large-scale engineering works.
Product Advantage
Exceptional lifting capability: 240-tonne rated lifting capacity, 7-section U-section main boom extending to 67 metres maximum length, combined main boom + jib reaching 85.7 metres maximum lifting height. Single-cylinder pin-lock telescoping ensures smooth operation, while the integrated boom tip anti-twist mechanism guarantees stable and reliable performance during heavy-duty operations.
Chassis Agility and Efficiency: 6-axle 12×6×10 drive/steer configuration, air-oil suspension with multi-mode steering (including crab steering), maximum speed 71km/h, maximum gradient 48%, exceptional manoeuvrability in confined spaces.
Superior Power Configuration: Dual engines (lower unit 420kW, upper unit 194kW) deliver ample power; hydraulic system features imported seals for leak-free operation and extended service life.
Efficient Relocation: Self-loading counterweight + patented auxiliary jib installation system enables counterweight assembly/disassembly within 30 minutes without auxiliary equipment, boosting relocation efficiency by 30%.
Precise and intelligent operation: Electro-hydraulic proportional control + PLC intelligent management with CAN bus integration ensures excellent micro-movement control and smooth compound actions; self-diagnostic fault detection facilitates straightforward maintenance.
Safe, reliable and durable: Four-point fully hydraulic outriggers enable 360° operation; torque limiting and multi-brake protection systems are incorporated. Critical welds are robotically welded using high-strength steel, guaranteeing extended machine lifespan.
Technical Parameters
| Classificatory | Item | Unit | Parameter | |
| Dimension | Overall length | mm | 15918 | |
| Overall width | mm | 3080 | ||
| Overall height | mm | 4000 | ||
| Wheel base | Axle 1, Axle 2 | mm | 13200 | |
| Axle 5, Axle 6 | mm | 67000 | ||
| Axle 3, axle 4 | mm | 87000 | ||
| Track | mm | |||
| Total mass in travel state | kg | 72000 | ||
| Axle load | Axle 1, Axle 2 | kg | 12000 | |
| Mass | Axle 3, Axle 4 | kg | 12000 | |
| Axle 5, Axle 6 | kg | 12000 | ||
| Power | Crane superstructure | Rated power | kW/(r/min) | 194/2100 |
| Rated torque | N.m/(r/min) | 1050/1400 | ||
| engine | Rated speed | r/min | 2100 | |
| Crane carrier engine | Rated power | kW/(r/min) | 420/1800 | |
| Rated torque | N.m/(r/min) | 2700/1080 | ||
| Rated speed | r/min | 1800 | ||
| Travel performance | Travel speed | Max. travel speed | km/h | 71 |
| Min. turning diameter | m | 24 | ||
| Min. ground clearance | mm | 280 | ||
| Approach angle | ° | 25 | ||
| Departure angle | ° | 18 | ||
| Braking distance (at 30km/h with full load) | m | ≤ 10 | ||
| Max. grade-ability | % | 48 | ||
| Fuel consumption for 100km | l | 90 | ||
Product Uses
Wind turbine erection and maintenance: Installation and servicing of nacelles, towers and blades.
Bridge construction: Erection of large components including box girders and cap beams for motorway, high-speed rail and municipal bridges.
Petrochemical equipment installation: Lifting of heavy apparatus such as reactors, columns and storage tanks for refining and chemical plants.
Urban Infrastructure Projects: Installation of critical components for super-tall steel structures, large-scale venues, airports, and rail transit systems.
Large Equipment Positioning: Transportation and precision installation of oversized equipment including tunnel boring machines, generator sets, presses, and moulds.
Emergency Rescue Operations: Large-scale accident response and heavy equipment clearance, with strong adaptability to complex working conditions.
Product Operate Guide
Prior to operation, inspect the entire machine, outriggers, hydraulics, wire ropes, and safety devices. Confirm the ground is solid and level, with outriggers securely supported.
Strictly adhere to the lifting capacity chart. Overloading, diagonal pulling, or skewed lifting is strictly prohibited; precisely match the operating conditions.
Execute hoisting, luffing, and slewing movements smoothly and gently. Avoid abrupt starts, sudden drops, sharp turns, or abrupt stops.
During operation, constantly monitor parameters such as the moment limiter, angle, and height. Immediately cease operation and inspect in the event of any abnormalities.
Obey the instructions of the designated signalman. Personnel must not remain or pass within the load, boom, or swing radius.
After completing work, retract the boom, superlift, and outriggers. Park the machine in a safe area, disconnect the power supply, clean the equipment, and maintain accurate records.
FAQ
1. WHAT PRECAUTIONS SHOULD BE TAKEN WHEN WORKING IN RAINY WEATHER?
Prevent slipping, avoid soft ground, check electrical system waterproofing, and suspend operations if necessary.
2. HOW TO REPLACE THE HYDRAULIC OIL FILTER ELEMENT?
Shut down and relieve pressure, clean around the filter element housing, remove using specialized tools, install new filter element while ensuring proper seal ring positioning.
3. HOW TO ADDRESS ABNORMAL TIRE WEAR?
Check and adjust tire pressure and alignment parameters. Balance the wheel hub. Avoid overloading and sudden acceleration/braking.
4. WHAT SHOULD BE NOTED WHEN ADJUSTING TRACKS?
Adjust on level ground. Maintain proper tension. Regularly inspect track pins and bushings for wear.
5. HOW TO REPLACE THE ENGINE BELT?
Release the tensioner, remove the old belt, install the new belt and adjust tension, check pulley alignment.
6. WHAT SHOULD BE NOTED WHEN REPAIRING THE BRAKE SYSTEM?
Use specialized tools, disassemble in sequence, replace worn components, adjust clearance after installation, and perform testing.
