Grue EOT

Qu'est-ce qu'une grue EOT?

EOT Crane Structure Diagram

EOT crane is a fundamental piece of equipment in manufacturing, assembly, and storage operations. The defining characteristic of an EOT crane is that it operates on a fixed runway system, typically consisting of two parallel beams (runway rails) attached to the building’s support structure.

The crane itself “travels” along these rails, covering the length of the bay, while a hoisting mechanism moves across the crane’s bridge, covering the width. This combination of movements allows the crane to serve virtually every point within its rectangular working area.

Main Types of EOT Cranes

10 Tons EOT Crane

EOT Cranes are primarily categorized by their bridge structure and the number of beams they use. The two most common types are:

1. Single Girder EOT Crane

Single Girder EOT Crane

5 Tons Single Girder EOT Crane

UN Single Girder EOT Crane features one main bridge beam on which the hoist and trolley operate. The hoist is typically mounted on a trolley that moves along the bottom flange of the girder.

• Caractéristiques clés:

  • 1. Cost-Effective: Simpler design and less material make it a more economical choice.
  • 2. Poids plus léger: Met moins de stress sur la structure du bâtiment.
  • 3. Lower Headroom: Requires less vertical space, ideal for buildings with height restrictions.
  • 4. Easier Installation & Entretien: Simpler construction leads to faster setup and lower maintenance costs.

• Ideal For: Lighter to moderate duty cycles, capacities generally up to 20 tonnes, and applications where cost and headroom are primary concerns. Common in workshops, entrepôts, and smaller manufacturing plants.

2. Double Girder EOT Crane

Double Girder EOT Crane

A Double Girder EOT Crane is constructed with two main bridge beams that support the trolley and hoist. The trolley runs on rails mounted on top of the two girders.

• Caractéristiques clés:

  • 1. Higher Lifting Capacity: Robust design allows for handling much heavier loads, often exceeding 100 tonnes.
  • 2. Better Hook Height: The positioning of the hoist between the girders provides greater lift height compared to a single girder crane of the same building height.
  • 3. Enhanced Durability & Stabilité: Suitable for severe-duty, high-cycle applications.
  • 4. Flexibility for Attachments: Easier to integrate auxiliary devices like walkways, maintenance platforms, or magnet cable reels.

• Ideal For: Heavy-duty applications, utilisation fréquente, high capacities, aciéries, foundries, power plants, and large-scale shipping ports.

Other Common Variations

• Top-Running vs. Under-Running: This refers to how the crane moves on the runway. Top-running cranes (described above) ride on rails atop the runway beams. Under-running (or underhung) cranes have end trucks that suspend the crane from the bottom flange of the runway beams.

• Grue à portique: A variant where the bridge is supported by two or more legs running on fixed rails at ground level, instead of being attached to a building structure. It is essentially a “self-supporting” EOT crane.

Applications of EOT Cranes

application

EOT Cranes are the workhorses of heavy industry due to their efficiency and reliability. Their primary application scenarios include:

• 1. Fabrication & Assembly Lines: Moving raw materials, components, and finished products between workstations.
• 2. Warehouses & Storage Facilities: Loading and unloading heavy goods from trucks and organizing storage.
• 3. Aciéries & Metal Fabrication: Handling raw steel coils, sheets, and fabricated metal structures.
• 4. Power Plants: Installing and maintaining heavy equipment like turbines, générateurs, and transformers.
• 5. Expédition & Ports: Used in shipyards for constructing and repairing ships, and in ports for handling containers and cargo (often as large gantry cranes).
• 6. Automotive Industry: Lifting vehicle chassis, engines, and large assembly jigs.
• 7. Exploitation minière & Cement Industry: Handling heavy machinery and bulk materials.

EOT Crane Manufacturing Process

In summary, whether you need a cost-effective Single Girder EOT Crane for light-duty tasks or a robust Double Girder EOT Crane for heavy, intensive applications, this material handling solution is engineered to improve productivity, enhance safety, and streamline your operations.