Overview
The crawler-mounted flatbed crane is a hybrid machine integrating a crawler chassis with a flatbed crane, offering superior stability and mobility. Unlike wheeled cranes, its tracked design minimizes ground pressure, enabling operation on soft or uneven surfaces. Common models feature load capacities ranging from 50 to 500 tons, with modular booms for flexible reach. This equipment is favored in industries requiring heavy lifts in challenging environments, such as bridge construction or offshore logistics. Its self-propelled design reduces reliance on auxiliary transport, streamlining workflows. Leading manufacturers include Liebherr, Sany, and XCMG, each offering specialized configurations.
Structure and Working Principle
The crane comprises a crawler undercarriage, rotating upper structure, telescopic boom, and flatbed carrier. Hydraulic cylinders control boom extension, while the crawler’s independent motors enable precise maneuvering. The flatbed doubles as a counterweight platform, enhancing lifting stability. Power is typically diesel-driven, though electric hybrid models are emerging for eco-sensitive projects. Advanced systems incorporate load moment indicators (LMIs) and anti-collision sensors to prevent accidents. The tracks distribute weight evenly, reducing sinkage risks on muddy or sandy terrains.
Key Features
1. **Terrain Adaptability**: Crawler tracks provide traction on slopes (up to 30° inclination) and unstable ground like gravel or marshland. 2. **High Load Capacity**: Booms with reinforced steel lattices handle loads exceeding 300 tons. 3. **Hydraulic Precision**: Proportional valves enable smooth load positioning, critical for delicate installations. Additional features include telescopic jibs for angled lifts and automated outriggers for rapid setup. Some models offer remote monitoring via IoT for predictive maintenance.
Application Areas
1. **Construction**: Erecting prefabricated structures or placing heavy machinery. 2. **Ports**: Container stacking and shipyard logistics. 3. **Energy Sector**: Wind turbine assembly and pipeline handling. In mining, these cranes transport oversized ore crushers, while urban projects use compact variants for tight spaces. Their versatility also extends to disaster recovery, such as clearing debris post-earthquakes.
Maintenance and Precautions
Daily checks should include track tension, hydraulic fluid levels, and boom integrity. Grease lubricants must be applied to slew bearings every 200 operational hours to prevent wear. Avoid overloading beyond the LMI’s warnings, and always deploy outriggers on uneven ground. Corrosion-resistant coatings are recommended for coastal environments. For long-term storage, park on wooden planks to avoid track degradation.
B2B Procurement Guide
1. **Capacity Planning**: Match the crane’s rated capacity to your typical load weights, factoring in future projects. 2. **Supplier Evaluation**: Prioritize vendors with ISO 4309 certification for crane safety standards. Leasing options (approximately $5,000–$20,000/month) suit short-term needs, while purchases require assessing residual value. Request demo units to test terrain performance. Key procurement platforms include Alibaba Industrial and MachineryTrader.
Related Manufacturers
- 主营：挖臂、随车抓、高空作业车、船吊、蓝牌随车吊、履带吊、蜘蛛吊、叉车吊、折臂吊、车载吊机、吊挖一体机、履带随车吊、履带蜘蛛吊、三轮随车吊、三轮吊车、克令吊、四驱龙门吊、履带随车挖、吊钻一体机、随车挖、三轮下葬车、装载机抓木机、光伏打桩机、抓木机、船用起重机
- 主营：高空作业车、三合一高空作业车、蓝牌高空作业车、船吊、固定船吊、园林随车吊、折臂吊、履带随车吊、履带随车挖、小吊车、吊抓一体机、三轮随车吊、拖拉机平板吊、拖拉机吊车、吊挖一体机、三轮吊车、自制随车吊、叉车吊、履带随车抓、抓木机、龙门随车挖、四驱随车挖、随车抓
- 主营：高空作业车、沥青搅拌机、四不像、船吊、克令吊、蜘蛛吊、随车吊、汽车吊、折臂吊、车载吊机、3吨蜘蛛吊、随车吊改装、三轮随车吊、固定吊机、随车挖、全自动伐木机、遥控割草机、挖树机、光伏打桩机、5吨蜘蛛起重机、8吨蜘蛛起重机、12吨蜘蛛、随车起重机、船用起重机、固定式起重机
- 主营：船用起重机、固定式抓木机、随车挖、船吊、船用折臂吊、蜘蛛吊、随车吊上装、车载横臂吊、车载折臂吊、履带蜘蛛吊车、随车吊、异型吊机、自制吊车、吊车、履带吊挖一体机、四不像随车吊、四不像吊挖一体机、车载吊机、四不像运输车
- 主营：地基打桩机、沥青拌合机、四不像随车挖、履带底盘、履带混凝土搅拌车、履带运输车、履带随车吊、履带随车抓、履带底盘总成、履带混凝土罐车、遥控履带底盘、履带运输车爬山虎、履带吊车、履带随车挖、拖拉机吊钻一体机、船吊、光伏打桩机、长螺旋打桩机、沥青搅拌机、沥青拌和机、移动式沥青拌合机、四不像随车抓木机、电线钻孔机、长螺旋钻机、抗浮锚杆打桩机
- 主营：高空作业车、随车挖、随车抓、蓝牌随车吊、船吊、蜘蛛吊、履带吊车、折臂吊、叉车吊、三轮随车吊、车载吊机、吊挖一体机、三轮吊车、履带随车吊、拖拉机平板吊、四驱龙门吊、吊钻一体机、履带随车挖、吊篮、履带运输车、履带蜘蛛吊、挖臂、抓木机、下葬车、装载机
- 主营：平板吊、工业遥控器、工程机械遥控器
- 主营：固定式抓木机、抓木机、随车挖、船吊、履带吊车、履带蜘蛛吊、三轮吊车、自制吊车、船用折臂吊、拖拉机平板吊、三轮随车吊、折臂吊、四不像随车吊、克令吊、轨道吊车、平板随车吊、吊挖一体机、履带光伏打桩机、小型履带打孔机、随车吊、光伏打桩机、水田除草机、船用起重机、伸缩臂式叉装机
- 主营：四不像随车吊、船吊、船用吊机、克令吊、码头吊、履带蜘蛛吊车、履带吊车、蜘蛛吊、履带随车吊、四轮吊车、自制吊车、自制随车吊、自备吊、拖拉机吊、拖拉机平板吊、随车吊、三轮吊车、移动吊机、平台吊、车载抓木机、履带随车抓木机、吊抓一体机、抓木机、固定式抓木机、四不像随车抓木机
- 主营：搅拌车、搅拌罐车、搅拌运输车、履带式随车吊、大骨料混凝土泵
- 主营：光伏打桩机、三轮工程车、四不像运输车、液压船吊、养殖船用固定吊、履带随车吊、四不像随车吊、三轮随车吊、三轮龙门吊、履带吊车、四不像吊车、三轮吊车、拖拉机平板吊、拖拉机尾吊、履带螺旋打桩机、四不像龙门吊、折臂吊、履带运输车、履带蜘蛛吊、滑移机、四不像随车抓、固定式抓木机、搅拌机