Double-Girder Tire Crane
Dual main beam load-bearing reinforcement: Utilizing two parallel box-type or truss-type main beams connected by cross beams to form a rigid frame, the load-bearing capacity is increased by over 50% compared to single-beam tire-mounted cranes, accommodating lifting requirements from 10 to 50 tons (with some custom models reaching 100 tons)
The span range is extended to 12-30m, making it suitable for lifting extra-long and extra-wide components such as steel structures and precast panels. Tire-mounted mobility: Equipped with multiple sets of pneumatic tires (typically 4-8 wheels), no fixed tracks are required, allowing free movement on hardened surfaces (concrete, asphalt). The minimum turning radius is approximately 5-8m, enabling rapid relocation between work sites (e.g., from a workshop to a storage yard).
Travel speeds reach 10-20 km/h, significantly outperforming the mobility efficiency of track-mounted cranes. Stability system upgrade: Standard-equipped with retractable hydraulic outriggers, which, when deployed during operation, provide a support area 30%-50% larger than single-beam models. Combined with counterweight design, ground pressure can be reduced to 0.1-0.2 MPa, enabling stable operation on non-hardened surfaces (such as compacted soil). The anti-overturning performance meets the GB/T 3811-2008 heavy-duty standard.
Description
The double-girder tire-mounted crane is a lifting device that combines strong load-bearing capacity with high mobility. With its unique structural design and outstanding performance, it plays an important role in a variety of heavy-duty work scenarios.
From a structural perspective, it adopts a double main beam box-type structure, which significantly enhances the overall rigidity and load-bearing capacity of the equipment, enabling it to cover a lifting range of 10-50 tons and easily handle the lifting requirements of heavy equipment, large steel structures, and other heavy objects. At the same time, the large span design of 12-30 meters allows for a wider range of operations and adapts to the space requirements of different sites.
In terms of mobility, the crane is equipped with a tire-mounted travel system, completely eliminating the constraints of tracks. The 4-8 wheel drive configuration enables it to adapt to various hardened surfaces, while a travel speed of 10-20 km/h facilitates rapid movement between multiple sites. The minimum turning radius of 5-8 meters ensures flexible maneuverability in narrow spaces, significantly enhancing operational flexibility and efficiency.
To ensure operational stability, the double-girder tire-mounted crane is equipped with retractable hydraulic outriggers as standard. When extended, the outriggers provide a large support area, with ground pressure as low as 0.1-0.2 MPa, enabling stable operation even on unpaved surfaces and significantly reducing requirements for the worksite. The crane achieves a work class of A5-A6, capable of meeting the demands of medium to high-frequency continuous operations while maintaining efficient performance over extended periods.
In terms of application scenarios, the double-girder tire-mounted crane is widely applicable in heavy machinery factories, ports, construction sites, and other locations. Whether it involves the installation and commissioning of heavy equipment, the loading and unloading of containers, or the transportation of large prefabricated components, it can efficiently complete these tasks, providing robust lifting support for various industrial production and engineering construction projects.
Double-girder tire-mounted cranes, with their balanced load-bearing capacity and high mobility, are the ideal choice for heavy-duty operations in a variety of scenarios, providing reliable support for improving operational efficiency and ensuring operational safety.
Features
Double-beam box-type structure: Utilizing two parallel box-type main beams (typically made of Q355B high-strength steel), these beams are connected transversely to form a rigid frame, resulting in a torsional stiffness improvement of over 60% compared to single-beam models. This structure enables the equipment to stably support loads ranging from 10 to 50 tons. During operations spanning 12 to 30 meters, the deflection of the main beams is controlled within L/1000, ensuring structural stability during heavy-load lifting operations.
Modular combination design: Core components such as main beams, legs, and walking mechanisms can be disassembled for transportation and assembled on site using high-strength bolts, reducing the installation cycle by 30% compared to integrated models, while also facilitating subsequent maintenance and component replacement.
Tire-mounted trackless mobility: Equipped with a 4-8 wheel hydraulic drive system, the tires are made of engineering-grade wear-resistant rubber (diameter ≥1.2m), enabling free movement on hardened surfaces such as concrete and asphalt, free from track constraints. Travel speed reaches 10-20 km/h, enabling rapid transfer between multiple workstations (e.g., cross-workshop transportation within a factory), offering over 50% better site adaptability compared to track-mounted cranes.
Flexible steering system: With full hydraulic steering and a minimum turning radius of only 5-8m, combined with a dual-direction cab design, it can maneuver flexibly in narrow spaces (such as workshop aisles and port yards), solving the pain point of “difficult turning” for large equipment.
Hydraulic leg reinforcement: Standard configuration includes 4-6 extendable hydraulic legs, which, when extended, provide a support span of 8-12m. By increasing the ground contact area, the ground pressure is reduced to 0.1-0.2MPa (equivalent to one-third that of a standard truck), enabling stable operation even on unpaved surfaces such as compacted soil or gravel sites without the need for additional ground reinforcement.
Dynamic balance control: Some high-end models are equipped with electronic spirit levels and leg pressure sensors that monitor the tilt angle of the machine body (≤3°) in real time. When the tilt angle exceeds the safe range, an alarm is automatically triggered and movement is restricted to prevent the risk of overturning under heavy loads.
High performance level: Generally reaches A5-A6 level, with core components such as motors and reducers designed for heavy-duty applications (e.g., hoisting motor duty cycle S3-60%). It can handle 10-16 hours of medium-to-high-frequency operations daily, making it suitable for continuous production scenarios in heavy machinery factories, ports, and similar environments. Precise speed control: The hoisting mechanism uses variable frequency speed control (speed range 0.5-8 m/min), supporting heavy-duty low-speed smooth positioning and light-duty high-speed efficient transportation; the trolley running speed is 20-40 m/min, and the main crane travel speed is graded by tonnage (10t model 20 km/h, 50t model 10 km/h), balancing efficiency and safety.
Heavy Industry: Used in heavy machinery factories for the installation and commissioning of machine tools and stamping equipment, capable of precisely lifting and installing large components weighing up to 50 tons; Ports and Logistics: Suitable for container yards and bulk cargo terminals, capable of loading, unloading, and stacking 20-40 foot containers; Construction: Used in bridge and wind power projects to transport precast beams, towers, and other oversized components, with outriggers capable of adapting to complex construction site terrain; Emergency Response: Can quickly reach accident sites to assist in the lifting and deployment of rescue equipment, with mobility far exceeding that of tracked cranes.
The double-girder tire-mounted crane combines the triple advantages of “double-girder high load capacity + tire high mobility + stable leg support,” which not only compensates for the insufficient load capacity of single-girder tire-mounted models but also overcomes the high cost of all-terrain cranes. It has become the “best value for money” choice for medium to large-scale heavy-duty and multi-site operations, especially in industrial scenarios that require a balance of efficiency, flexibility, and safety.
Technical Data
| Capacity | 1t | 2t | 3.5t | 5t | 10t | 16t | 20t |
|---|---|---|---|---|---|---|---|
| Span | 8-14m | 8-16m | 10-18m | 10-20m | 12-22m | 14-25m | 14-28m |
| Lifting height | 6-10m | 6-12m | 8-14m | 8-16m | 10-18m | 10-20m | 12-20m |
| Work Duty | A3-A4 | A4 | A4-A5 | A5 | A5-A6 | ||
| Lifting speed | 8/0.8m/min | 6/0.6m/min | 5/0.5m/min | 4/0.4m/min | |||
| Hoist Traveling Speed | 20-30m | 20-35m | 20-40m | ||||
| Crane Traveling Sprrd | 15-20m | 12-18m | 10-15m | 8-12m | 6-10m | 5-8m | |
| Rail | Concrete hardened surface | Reinforced concrete floor | |||||
Purchasing Process
FAQs About Choosing the Right Gantry Crane and Supplier
In order to obtain accurate quotes for custom overhead cranes, providing the following core information will greatly improve efficiency：
1. Key specifications: including rated lifting weight (tons), span (i.e., track spacing, meters), and lifting height (meters), which is the basis of the design.
2. Use environment and working conditions: Explain the conditions of the installation site (such as indoor/outdoor, temperature, humidity) and work level (busy level), which determines the material selection and configuration level of the structure.
3. Specific configuration requirements: clarify the drive mode (such as frequency conversion control), brand preferences for electrical components, safety devices (such as overload limiters, anti-collision systems), and whether special functions such as remote control are required.
4. Installation and service: confirm the on-site power supply conditions (voltage, frequency), installation conditions, and specific expectations for delivery time, installation and commissioning, and after-sales service.
The more detailed the information provided, the more accurate and reliable the solutions and quotations obtained.
1. Span and lifting capacity: this is the foundation.The larger the span and the higher the rated lifting weight, the material and design costs of the main beam and structure will increase significantly, and the higher the price.
2. Working level and frequency of use: The working level (A1-A8) represents the busy level and load status of the crane.Cranes with frequent and heavy-duty use require more durable motors, gearboxes and structural parts, and the cost is naturally higher than that of lightweight and occasionally used equipment.
3. Structure and configuration: The double beam is more complex and stable than the single beam structure, and the price is higher.At the same time, the lifting height, operating speed, motor brand, control system (ordinary vs frequency conversion), and the level of safety devices (such as anti-swing, load monitoring) all directly affect the final quotation.
4. Degree of customization and brand service: completely standard models have lower costs.The customized design based on the workshop environment (such as explosion-proof and high temperature), special processes (such as metallurgical special), brand added value, and after-sales guarantee system will all be reflected in the price.
In simple terms, when buying a bridge crane, it is necessary to consider “how much, how frequently, what environment and what configuration”, which determine its core value and price.
Which crane to choose mainly depends on your specific needs. You can quickly judge from the following four core aspects：
-Single-beam bridge crane: it is suitable for conventional workshops with light and medium loads (usually ≤20 tons), medium span, and low frequency of use. It is the most economical and versatile choice.
-Double-girder bridge crane: used for heavy-duty, long-span, or high-work-level occasions (such as frequent hoisting, metallurgy, heavy-duty assembly). Its stability, durability, and safety are higher, but the cost is also increased accordingly.
-Free vertical crane (cantilever/column type): suitable for fixed working points and working conditions with limited rotation range, such as beside machine tools, maintenance areas, or production line stations, it can efficiently use corner space and be installed flexibly.
-Grab crane: It is specially used for the handling, loading, and unloading of bulk materials (such as grain, coal, sand, and gravel). The only reason to choose it is that you need to deal with such unpackaged loose materials.
In simple terms, you can filter according to this logic：
First, according to the lifting weight and span, choose between a single beam and a double beam.
If the scope of operation is highly concentrated and the space is limited, consider a free vertical.
If the handling object is bulk material, it points directly to the grab type.
Delivery times largely depend on whether the crane is standard or customized. Based on our experience, standard single-girder and double-girder cranes can be produced more quickly, while cranes with special spans, duty ratings, or environmental requirements naturally require additional engineering design time.
For each quotation, we provide an estimated production and delivery schedule based on your configuration and destination. Throughout the manufacturing process, our team maintains communication with the customer to ensure no unexpected issues arise before shipment.
Compared with many suppliers, Yangyumech mainly reflects the two differentiated advantages of high customization flexibility and clear international compliance when providing bridge cranes.
On the one hand, we focus on in-depth customized services. According to your specific needs, we can provide fully customized solutions on core parameters such as rated load capacity, span, and lifting height, and accept personalized requirements. This means that what you get is not a standard product, but exclusive equipment that accurately matches the working conditions of your workshop.
On the other hand, we attach importance to international standards and quality certification. Our products clearly meet the requirements of international certifications such as CE, which ensures that their safety and reliability can meet the mainstream standards of the international market, and provides you with additional quality confidence guarantees. Combined with our direct supply capabilities as a powerful factory, we can achieve better comprehensive value for you while obtaining compliant and customized products.
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