Differences between single girder eot crane and double girder eot crane

Jun 11, 2024

What is a Double Girder EOT Crane

The double girder EOT crane, also known as a double girder overhead crane, is an important lifting equipment. It consists of two parallel main beams, a structure that provides it with additional support and stability, ensuring that the performance and safety of the crane will not be affected when operating on longer spans.

The double girder EOT crane has a strong carrying capacity and can meet the needs of various heavy object handling. In addition, the double girder structure also makes the crane show efficient and stable characteristics during operation.

What is a Single Girder EOT Crane

The single girder EOT crane is a heavy lifting equipment widely used in the industrial and manufacturing fields. It consists of components such as the main beam, end beam, electric hoist, and electric control system. It has the characteristics of strong structure, light weight, and small size, which can meet the requirements of the crane for the plant structure and reduce production costs.

Both single-beam and double-beam EOT (electric overhead crane) are overhead cranes used for material handling in various industries. However, they have obvious differences in design, capacity, and application.

Differences between single and double girder eot crane:

1. Design and Structure:

• Single Girder EOT Crane: This type of crane has a beam or girder on which the crane moves. The crane is usually underslung, which means it runs along the bottom flange of the girder.

• Double Girder EOT Crane: This type of crane has two parallel beams or girders on which the trolley crane moves. The crane is usually top-running, which means it runs on tracks mounted on top of the girder.

2. Lifting Capacity:

• Single Girder EOT Crane: These cranes are usually used for lighter loads, usually up to 20 tons.

• Double Girder EOT Crane: These cranes are designed for heavier loads and can carry up to several hundred tons.

3. Lifting Height:

• Single Girder EOT Crane: Due to the underslung design of the crane, the lifting height is somewhat limited.

• Double Girder EOT Crane: The top-running design of the crane allows for greater lifting heights.

4. Application:

• Single Girder EOT Crane: These cranes are ideal for light applications or small facilities with low space and lifting capacity requirements.

• Double Girder EOT Crane: These cranes are used for heavy applications such as construction, manufacturing, and heavy industry. They are also suitable for large facilities with high ceilings.

5. Cost:

• Single-beam EOT cranes: These cranes are generally less expensive due to their simpler design and lower material requirements.

• Double-beam EOT cranes: These cranes are more expensive due to their double-beam design, larger capacity, and increased material and manufacturing costs.

6. Maintenance:

• Single-beam EOT cranes: Maintenance is relatively easy due to their simpler design.

• Double-beam EOT cranes: Maintenance may be more complicated due to their double-beam design and more mechanical parts.

The choice between single-beam and double-beam EOT cranes depends on your specific needs, including the weight of the material you need to lift, the height you need to lift, your budget, and the available space in your facility.

How to choose between single-beam EOT and double-beam EOT

Single-beam EOT and double-beam EOT cranes each have their economic advantages, depending on factors such as usage scenarios, lifting needs, and cost budgets.

Single-beam EOT cranes are generally lighter, more flexible, and easier to install and maintain due to their relatively simple structure. Its cost is relatively low, and it is suitable for work places with small span and moderate lifting weight, such as workshops, warehouses, etc. In some projects with limited budgets, single-beam EOT cranes become a more economical choice. However, it should be noted that the stability of single-beam cranes is relatively poor, especially when running at high speed, it may cause vibration and shaking, affecting work efficiency and safety.

Double-beam EOT cranes have the characteristics of large span, good overall stability, and large lifting weight. Its structure is sturdy and can withstand heavyweight items to meet various logistics needs. Although the manufacturing cost of double-beam cranes is relatively high, due to its strong carrying capacity and stability, it can bring higher work efficiency and safety, thereby reducing long-term operating costs to a certain extent.

In addition to single-beam EOT and double-beam EOT, rubber tire gantry cranes (RMG crane) are also commonly used. It is not restricted by tracks, can be transferred between different box areas, and has high flexibility and work efficiency.

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