Double-Girder Tire Crane

Double‑girder rubber‑tyred (tire‑mounted) gantry crane is heavy‑duty no‑rail mobile lifting equipment, also known as mobile goliath crane.
Yangyumech Chinese OEM manufacturer supplies box‑type and truss‑type versions, capacity from 10‑50 tons with custom‑built models up to 100 tons.
It eliminates expensive rail foundation, equipped with hydraulic outriggers for anti‑overturning performance, widely used for pre‑cast yards, heavy machinery workshops and steel‑structure construction sites.

Description

Typical Application & Working Conditions

Our double‑girder tire‑mounted gantry cranes serve multiple heavy‑duty scenarios:
‑ Pre‑cast concrete yards for precast beam and component lifting
‑ Heavy‑machinery manufacturing workshops for large equipment assembly
‑ Steel‑structure fabrication plants, steel component handling
‑ Construction & wind‑power project sites
‑ Port auxiliary yards and heavy‑cargo storage areas

Working duty: A5‑A6; Working temperature:‑20℃ ~ +40℃.
Ground requirement: hardened concrete, asphalt or compacted gravel soil (hydraulic outriggers must be deployed during hoisting operation).

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

1. Double‑box‑girder heavy‑load structure: Two parallel Q355B high‑strength box‑type main beams connected by cross beams, bearing capacity increased over 50% compared with single‑girder tire‑mounted models. Main‑beam deflection strictly controlled within L/1000 under full load. Truss‑type option is available for wind‑prone open‑air sites.
2. Modular bolt‑connected design: Main beam, legs and travelling mechanism can be disassembled for ocean transportation and quickly assembled on‑site, shorten installation cycle and simplify later‑period maintenance and spare‑part replacement.
3. Track‑free rubber‑tire travelling system: 4‑8 units of heavy‑duty engineering rubber tires (diameter ≥1.2 m). Freely move on concrete, asphalt or compacted soil without rail construction. Travel speed adjustable according to tonnage.
4. Full‑hydraulic flexible steering: Minimum turning radius 5‑8 m, adaptable for narrow aisles and complex‑layout yards.
5. Retractable hydraulic outrigger safety‑system: 4‑6 hydraulic support legs. Deploy legs during lifting operation to enlarge supporting area, reduce ground pressure down to 0.1‑0.2 MPa, improve anti‑overturning safety complying with GB/T 3811‑2008 standard.
6. Real‑time dynamic balance monitoring: High‑end versions equipped with electronic spirit level and leg pressure sensors. Auto‑alarm and travel restriction when body tilt exceeds safe threshold to prevent overturn risk.
7. Heavy‑duty working performance: Work class A5‑A6, hoisting motor S3‑60% duty‑cycle, support 10‑16 hours daily continuous operation. Variable‑frequency speed control for hoist and trolley for smooth heavy‑load positioning.
8. Wide‑range industry adaptability: Fit for heavy machinery workshops, pre‑cast yards, steel‑structure factories, wind‑power construction sites and port auxiliary yards.

Technical Data

Capacity1t2t3.5t5t10t16t20t
Span8-14m8-16m10-18m10-20m12-22m14-25m14-28m
Lifting height6-10m6-12m8-14m8-16m10-18m10-20m12-20m
Work DutyA3-A4A4A4-A5A5A5-A6
Lifting speed8/0.8m/min6/0.6m/min5/0.5m/min4/0.4m/min
Hoist Traveling Speed 20-30m20-35m20-40m
Crane Traveling Sprrd15-20m12-18m10-15m8-12m6-10m5-8m
RailConcrete hardened surfaceReinforced concrete floor

Purchasing Process

Our Crane Certifications

Our cranes (overhead crane, gantry crane, jib crane and electric hoist) are fully certified to meet international and local manufacturing standards. We hold complete qualification documents to guarantee product safety and reliable quality for global buyers. Below are our key certifications:

Our Custom Visit

We welcome worldwide customers to visit our manufacturing workshop. You can check crane production processes, raw materials and finished products face‑to‑face with our engineering team.

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.

Yes. Our bridge cranes fully comply with and follow relevant international standards. Our company has passed a number of international certifications, such as the ISO 9001 quality management system, which guarantees that the management system ensures every aspect of the product, from design to delivery, is under high standards of quality control. Therefore, you can rest assured that our cranes are internationally competitive in terms of safety and quality.
 
In order to ensure the versatility, safety, and reliability of our products on a global scale, we strictly follow the mainstream international standard systems, including the International Electrotechnical Commission (IEC), European (EN/DIN), and the United States (ANSI/ASME) in the design and manufacturing process. For example, for the EU market, our products meet the detailed requirements of the Machinery Directive and CE certification. At the same time, we also actively adapt to specific regulations in other regions to meet the compliance needs of different customers.

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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Get In Touch

Yangyumech is a leading professional manufacturer of cranes in China. Our company integrates the processes of crane research and development, manufacturing, sales and service.