Product Introduction
The QAY800 prioritizes efficient operations and convenient transportation. Equipped with a self-dismantling boom assembly driven by an independent power source, it enables rapid boom disassembly and separate transport, significantly enhancing flexibility and efficiency when relocating work sites. Its gas-oil suspension system and advanced hydraulic control technology ensure smooth and precise operation.
Product Advantage
QAY800 adopts 7-segment oval boom, the length is 84m. The boom can be separated into two parts. After dismantling the 5th-7th segments and installing a 2.5m independent boom head, the length of the boom is 52m, forming a 4-segment short-boom product; on that basis, installing the tower boom will improve the performance of the super-lift, which is specially designed for lifting the 2MW wind power.
QAY800 adopts 8-axle chassis, full-wheel steering, and X outrigger structure. The front and back swing can be realized by the cylinder. The lateral outrigger span is 13m.
To transfer the machine flexibly and facilitate the assembling and disassembling of the boom, the boom is added a
self-assembling and self-disassembling device which is controlled by the independent power producer. The weight of QAY800 in travel is 96t, carrying all the outriggers and the whole turntable. The boom is transported independently.
Technical Parameters
| Dimensions | Overall length | 18210 | mm |
| Overall width | 3980 | mm |
| Overall height | 4000 | mm |
| Weight | Dead weight in travel state | 79680 | kg |
| 1st axle | 11625 | kg |
| 2nd axle | 11201 | kg |
| Power | Engine rated output | 194/2100 | KW/(r/min) |
| Engine rated torque | 2700/1080 | N.m/(r/min) |
| Travel | Max. travel speed | 75 | km/h |
| Min.turning diameter | 24 | m |
| Min.ground clearance | 460 | mm |
| Lifting Performance | Max.total rated lifting load | 800 | t |
| Min.rated working radius | 3 | m |
| Turning radius at swing table tail | 4090 | mm |
| Base boom amx.load moment | 1690 | kn.m |
| Base boom | 10.3 | m |
| Full-extended boom | 38.2 | m |
| Full-extended boom+Jib | 55 | m |
| Outrigger longitudinal distance span | 8.7 | m |
| Outrigger lateral distance span | 9.2 | m |
Product Uses
1. Wind Power Equipment Installation and Maintenance
The QAY800, specifically engineered for the wind power market and hailed as the “Wind Power Knight,” excels in installing and maintaining wind turbines ranging from 1.5MW (full coverage) to 2.0MW (low-wind models). Its specialized wind turbine jib efficiently lifts components like nacelles and blades to elevated positions.
2. Large-Scale Petrochemical and Chemical Projects
Widely deployed in petrochemical engineering for lifting and dismantling equipment like large reaction towers, methanol towers, and waste heat boilers. Its exceptional micro-movement capability and precise control ensure safe, efficient installation/removal of large equipment within confined factory spaces.
3. Nuclear Power, Metallurgy, and Major Energy Projects
Suitable for construction and equipment installation in major energy projects like nuclear power and metallurgy. Its powerful lifting capacity and superlift technology meet the demands of handling oversized and heavy components in these sectors.
4. High-Speed Rail and Other Large-Scale Infrastructure
Participates in large-scale infrastructure projects like high-speed rail, lifting large bridge components and heavy steel structures. Its extended boom and robust stability effectively handle long-span, high-difficulty lifting tasks.
5. Operations in Challenging Terrain and Harsh Environments
Its 8-axle chassis, all-wheel steering system, and robust off-road capabilities enable it to adapt to demanding terrain for relocation and operations in rugged environments like mines and wind farms across rolling hills.
Product Operate Guide
The QAY800 features advanced technologies such as self-loading/unloading boom technology, adaptive counterweight coupling technology, and multi-axis multi-mode steering control. However, safe and efficient operation requires strict adherence to standard procedures. Operators must be certified, conduct thorough equipment inspections before each job, and strictly follow the official load charts at all times. Overloading is strictly prohibited. Special attention to equipment maintenance is required when operating in harsh environments.
FAQ
1. HOW TO IMPROVE EQUIPMENT OPERATIONAL EFFICIENCY?
Perform regular maintenance, operate equipment correctly, and select appropriate operating modes and attachments based on working conditions.
2. NUCLEAR POWER, METALLURGY, AND MAJOR ENERGY PROJECTS
Suitable for construction and equipment installation in major energy projects such as nuclear power and metallurgy. Its powerful lifting capacity and superlift technology address the hoisting demands for oversized and heavy components in these fields.
3. HIGH-SPEED RAIL AND OTHER LARGE-SCALE INFRASTRUCTURE PROJECTS
Participates in large-scale infrastructure construction like high-speed rail, handling the lifting of large bridge components and heavy steel structures. Its extended boom and robust stability effectively fulfill demanding, long-span lifting tasks.
4. WHAT CAUSES EQUIPMENT TRAVEL DEVIATION?
Check for consistent tire pressure or track tension, single-side brake drag in the braking system, or transmission system malfunctions.
5. HOW TO ADDRESS EXCESSIVE WATER TEMPERATURE?
Check coolant level, clean the radiator, inspect the condition of the water pump and thermostat, and clear debris from the radiator exterior.
6. HOW TO RESOLVE BLACK SMOKE FROM THE ENGINE?
Check if the air filter is clogged, verify the fuel injection system is functioning properly, and ensure the turbocharger is operating effectively.
