What are the different types of cranes?

Cranes are the workhorses of modern industry, essential for lifting, що рухається, and positioning heavy loads with precision and efficiency. From manufacturing floors to bustling ports and massive construction sites, different types of cranes are designed for specific tasks and environments. Understanding these variations is key to selecting the right equipment for the job. This guide explores the main types of industrial and logistical cranes, their unique features, and their primary applications.

What are the different types of cranes?

Мостові крани (Bridge Cranes)

Overhead cranes are ubiquitous in factories, склади, and workshops. They consist of a hoist that moves along a horizontal beam (the bridge), which itself moves on elevated runways along the building’s length.

Однобалочний мостовий кран

• Однобалочний мостовий кран: Features a single bridge beam. They are cost-effective, lighter, and require less headroom. Ideal for lighter loads (up to ~20 tons) and applications with lower duty cycles.
  • Застосування: Machine shops, складальні лінії, storage areas.

Double Girder Overhead Crane

• Double Girder Overhead Crane: Utilizes two bridge beams for superior strength and stability. They can handle much heavier loads (often over 20 tons and up to several hundred tons), accommodate auxiliary hoists, and provide better hook height.
  • Застосування: Сталеплавильні заводи, heavy fabrication facilities, електростанції, paper mills.

Козлові крани

Gantry cranes are similar to overhead cranes but are supported by freestanding legs that move on wheels or rails along the ground, eliminating the need for a building’s roof structure. They are highly versatile for both indoor and outdoor use.

Гумовий портал (РТГ) Журавель

• Гумовий портал (РТГ) Журавель: A mobile gantry crane used primarily in container terminals. It runs on rubber tires, making it highly flexible for stacking containers in yard operations.

  • Застосування: Container yard stacking and handling.

Портал на рейках (RMG) Журавель

• Портал на рейках (RMG) Журавель: Similar to an RTG but runs on fixed rail tracks. This allows for more precise positioning, higher stacking capabilities, and is better suited for automated operations.

  • Застосування: High-density, organized container storage yards, often in intermodal terminals.

Port Cranes (Морський & Container Handling)

These are heavy-duty giants designed specifically for the rapid loading and unloading of ships.

Корабель до берега (STS) Журавель

• Корабель до берега (STS) Журавель / Контейнерний портальний кран: These are the iconic, colossal cranes seen at container terminals. They straddle a ship at berth, moving containers directly between the vessel and the quay. They are essential for modern containerized shipping.

  • Застосування: Loading and unloading container ships at port terminals.

Контейнерний портальний кран

• Mobile Harbor Crane: A versatile, wheeled or rail-mounted crane that can perform multiple tasks, including handling containers, сипучих матеріалів, and general cargo. It offers great flexibility for multi-purpose ports.

  • Застосування: General cargo ports, bulk terminals, and smaller container facilities.

Portal / Козлові крани (in heavy lifting)

Often referred to as “Goliath” cranes, these are heavy-duty, large-capacity gantry cranes used for massive lifts.

• Опис: They feature a fixed or movable structure with one or two beams supported by large, rigid legs on rails. They are engineered for extreme loads.
  • Застосування: Суднобудування (lifting ship sections), важка промисловість (lifting reactors, turbines), large-scale construction projects (bridge segment installation).

Поширення: Types of Cranes

Q1: What is the most common type of crane inside a factory?

A: The Overhead Bridge Crane is the most common, with single girder cranes for lighter work and double girder cranes for heavy manufacturing.

Q2: What’s the main difference between an RTG and an RMG?

A: RTGs (Гумовий портал) are mobile and flexible, moving freely in a yard. RMGs (Портал на рейках) run on fixed tracks, offering greater precision, stability for higher stacking, and are easier to automate.

Q3: Which crane is specifically designed for unloading container ships?

A: The Ship-to-Shore (STS) Container Gantry Crane is specifically engineered for this high-speed, high-capacity task.

Q4: What type of crane would be used to build a large ship?

A: Massive Portal/Gantry Cranes (often called Goliath or shipbuilding gantries) are used to lift and position large prefabricated sections of a ship’s hull and superstructure.

Q5: How do I choose the right type of crane?

A: Ключові фактори включають: Weight and size of loads, required span and lifting height, робочий цикл (frequency of use), available space (внутрішній/зовнішній), потреби в мобільності, and budget. Consulting with a crane specialist is always recommended.

Висновок

From the precision of a workshop’s overhead crane to the raw power of a port’s STS crane, each type of crane plays a vital role in global industry and infrastructure. Selecting the correct crane—whether it’s a versatile gantry, a specialized container handler, or a heavy-lift portal crane—is fundamental to achieving safety, ефективність, and productivity in any material handling operation.