Double Girder Overhead Travelling Crane

The application scope of electric double beam bridge crane includes workshops in factories, warehouses, logistics centers, stations, ports, industrial and mining enterprises, and other departments.

Electric double beam bridge crane is an industrial handling equipment suitable for industrial production and logistics handling scenarios with large lifting capacity, busy work, and high requirements for lifting accuracy and efficiency. Its lifting capacity is usually between 5-500 tons, which can meet the needs of lifting heavy equipment, etc. In addition, the electric double beam bridge crane has better lifting stability, and the double beam structure can effectively maintain the balance of heavy objects, reduce swinging, and perform well in high-precision scenarios such as large equipment installation and precision component handling

Double girder overhead travelling cranes are widely used in various industrial and logistics scenarios, including:

• General Machinery Workshop Scenario: Suitable for environments with high positioning accuracy requirements, limited workshop height, and high-frequency operations. The special design highlights include variable frequency speed regulation, micro motion control, and lightweight main beam, which can flexibly adjust the speed of the trolley, achieve millimeter level lifting, and reduce the load-bearing pressure of the factory building.
• Heavy industrial warehouse scenario: suitable for multi-layer stacking, efficient inbound and outbound, and multi material compatibility requirements. The design highlights include high lifting height, fast operating speed, and multi accessory adaptation, which can effectively utilize the vertical space of the warehouse, shorten material transfer time, and adapt to different materials such as steel and standard parts.
• Industrial production, logistics warehousing, port terminals and other places: suitable for complex working conditions and heavy load tasks with large lifting capacity, busy work, high requirements for lifting accuracy and efficiency.
• Other applicable scenarios: including large-scale equipment installation, precision component handling, operations under complex conditions such as high temperature, low temperature, and humidity, as well as special demand scenarios that require customized design and automation control.

In summary, electric double beam bridge cranes have strong load-bearing capacity, high rigidity and stability, stable and reliable operation, efficient lifting and handling capabilities, diverse lifting equipment selection, strong adaptability, high safety performance, and long service life due to their strong load-bearing capacity.

The double girder overhead travelling crane has the following characteristics:

• Structural features: A stable frame composed of two main beams and end beams, with strong rigidity and torsional resistance, capable of withstanding large loads and impact forces. The main beam usually adopts a box girder structure, designed with an upward camber to improve bearing capacity and stability, and reduce shaking during operation.
• Lifting capacity: The lifting capacity is usually between 5-500 tons, which can meet the needs of lifting heavy equipment, much larger than the lifting capacity of a single beam crane (1-20 tons).
• Stability of operation: The double beam structure can effectively maintain the balance of heavy objects, reduce swinging, run smoothly, with minimal vibration and deformation, ensuring smooth operation and extending equipment life.
• Power and efficiency: The lifting mechanism is usually equipped with two electric motors, which have strong power and a lifting speed of 0.7-12 meters per minute. It is also equipped with a main and auxiliary trolley, achieving multiple uses of one machine and greatly improving work efficiency.
• Scope of application: Suitable for industrial production, logistics warehousing, port terminals and other places with heavy lifting capacity, busy work, and high requirements for lifting accuracy and efficiency. It can easily handle complex working conditions and heavy load tasks.
• Safety performance: Equipped with comprehensive safety devices such as lifting capacity limiters and torque limiters to ensure safe operation in all aspects. High stability and reliability under extreme working conditions such as overload and emergency braking, reducing the risk of accidents.
• Cost and maintenance: The equipment cost is high, and the installation and maintenance costs are also high. The structure is complex, there are many components, the failure rate is high, and the price of repair parts is expensive.

In summary, electric double beam bridge cranes have significant advantages in load-bearing capacity, operational stability, efficiency, and safety, but their cost and maintenance complexity are relatively high.

1. Main girder is made by CNC cutting for complete steel plate, with high surface flatness and accuracy, National standard 24# 38# 43# adapted for cross travel rail;

2. End carriages are welded with rectangular tubes, buffers equipped for safety crane travel;

3. Main girder and End carriages assembled with bolts and nuts easily and fast;

4. Winch trolley consists of motor, brake and reducer, trolley frame, hook, pulley etc.

5. Electrics used Schneider brand original from France;

6. Motor, reducer, brake best brand in China;

7. Working class A5, A6, A7, can be working 24 hours continuously;

8. Control can be pendant control, wireless remote control and cabin control from TELECRANE;

9. Safety devices included, such as buffer, limit switch, overload limiter, voltage and current protection equipment etc.

What are the differences between the QD double beam winch type bridge crane and the LH double beam hoist type bridge crane?

QD double beam winch type bridge crane and LH double beam hoist type bridge crane are two types of bridge cranes which are widely used in industrial environment. Many customers will be curious about the difference between the two types, why the price of the winch type double girder bridge crane is more expensive, and the differences between the two are sorted out as follows:

1. Lifting capacity - The lifting capacity of QD double-girder winch type overhead crane can reach 600 tons, while LH double beam hoist type bridge crane usually lifts one ton to dozens of tons, rarely more than 32 tons.

Double girder overhead travelling crane are suitable for very heavy lifting applications, while LH double beam hoist type bridge cranes are suitable for simpler industrial environments with lower lifting requirements.

2. Hoisting Mechanism - double girder overhead travelling crane adopts winch trolley hoisting mechanism, which can provide precise and efficient lifting and lowering, while LH double girder overhead crane adopts hoist trolley mechanism, which has lower control precision.

3. Operating environment - double girder overhead travelling cranes are able to withstand harsh industrial environments that expose equipment to factors such as dust, high temperature and humidity.

LH double bridge cranes are suitable for most industrial environments, but not suitable for some extremely harsh environmental conditions.

double girder overhead travelling cranes are generally more expensive than LH double girder bridge cranes due to their advanced design and lifting capacity;

LH double-girder bridge cranes are more cost-effective, but may not be able to meet some special heavy-duty lifting operation environments.

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