Single-beam overhead traveling crane

Name: Single-beam overhead traveling crane
SKU: 0

A general-purpose gantry crane is a bridge-type lifting machine with a gantry-shaped metal frame as its core structure. It consists of main beams, legs, and lower crossbeams, and is supported by two legs on ground rails, running along those rails. Structural classification: Based on the main beam structure, it is divided into single main beam (such as the MDG type) and double main beam (such as the MG type). Double main beams are mostly box-shaped welded structures, offering superior wind resistance and load-bearing capacity. Based on the cantilever form, it is divided into single cantilever, double cantilever, and no cantilever, with the cantilever length expanding the working range. Legs are divided into rigid legs (for small span scenarios) and flexible legs (for spans exceeding 30 meters, compensating for temperature deformation).

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Equipment Description

A general-purpose gantry crane is a bridge-type lifting machine with a gantry-shaped metal frame as its core structure. It consists of components such as a main beam, legs, and lower crossbeam. It is supported on the ground track by the legs on both sides and runs along the track.

Structural classification: According to the main beam structure, it is divided into single main beam (such as MDG type) and double main beam (such as MG type). Double main beam is mostly a box-shaped welded structure, which has better wind resistance and load-bearing performance; According to the cantilever form, it is divided into single cantilever, double cantilever and no cantilever, and the cantilever length expands the working range; The outriggers are divided into rigid outriggers (small span scenarios) and flexible outriggers (when the span exceeds 30 meters, to compensate for temperature deformation).

Material handling and drive system: The material handling device can be flexibly configured with hooks (general cargo lifting), grab buckets (bulk material loading and unloading), electromagnetic chucks (magnetic materials) or combinations of multiple devices; equipped with a crane trolley (integrated lifting and trolley running mechanism) that moves laterally along the main beam track; the electrical system includes control devices, safety interlocks and lighting equipment, and supports multiple modes of operation such as driver's cab operation and ground wired/wireless remote control.

Safety and technical specifications: Equipped with lifting capacity limiters, wind-resistant and anti-slip devices, wind speed alarms, and skewing limiters (mandatory installation when the span is ≥40 meters), etc.; the camber of the main beam at mid-span shall not be less than 0.7L/1000 (L is the span); the welds of the metal structure shall comply with the JB/T10559 ultrasonic flaw detection standard; the working level covers A1 (light-duty) to A8 (heavy-duty), and the actual span shall be determined by measurement.

Application Fields

Widely used in outdoor bulk material loading and unloading, large component transfer and engineering construction scenarios:

Industrial logistics: open-air storage yards (loading and unloading of bulk cargo such as coal and sand), factory warehouses (handling of heavy machinery parts and raw materials);

Port and shipping: Port cargo yards (container transshipment, ship material hoisting), dock platforms (hull section assembly and equipment installation);

Engineering construction: railway bridge construction (transportation and erection of precast beam segments), power station construction (concrete pouring for hydropower station dams), subway and tunnel engineering (assistance for hoisting excavated soil and components);

Special industries: Material flow in steel mills (handling of steel coils and rolled products), nuclear power plants (lifting of large equipment), and other fields.

Product Advantages

Superior site and operational efficiency: The portal structure increases site utilization by more than 40% compared to general bridge cranes. Combined with a large span and multiple cantilever design, it has a wide operating range and can quickly complete the entire process of "grabbing-lifting-transferring-stacking", greatly improving material handling efficiency.

High versatility and customization: The lifting device and control mode can be flexibly adapted to different hoisting needs such as general cargo, bulk materials, and magnetic materials; it can also be customized in terms of span, lifting capacity, and outrigger type according to specific scenarios such as ports, engineering, and industry (such as the beam lifting machine variant to meet the large load of bridge construction).

Safe and reliable: The structure is robust and can withstand harsh working conditions and heavy loads; it is equipped with multiple safety devices (overload limit, wind and slip resistance, real-time wind speed monitoring, etc.), and operators are required to be certified. The operation standards (such as the "Ten No-Lifting" principle) further reduce risks.

Cost reduction and industrial upgrading are facilitated by: automated/semi-automated operations reduce reliance on manpower, thereby lowering labor costs and operational errors; the application of intelligent technologies (such as 5G remote control and intelligent scheduling) and green technologies (energy-saving drive) promotes the upgrading of itself and its upstream and downstream industries.

Outstanding adaptability and durability: It can operate in environments ranging from 20℃ to 40℃ and at altitudes of ≤1000m (unless otherwise specified by special orders); the metal structure undergoes flaw detection, and key components (wire ropes, brakes) can be maintained regularly to ensure a long service life, making it suitable for long-term operation in complex outdoor conditions.

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