There are various types of cranes, and it's common to consider driving as a subcategory of crane operations. Today, we'll let an expert in port cranes explain the different characteristics of cranes:
Port Crane Specialist: Let’s start by understanding how cranes work:
Crane Operating Principle:
The basic operation of a crane usually involves four active and driven wheels. However, when dealing with heavy loads, more wheels are often added to reduce the pressure on each wheel. When the number of wheels exceeds four, an articulated equalization frame is typically used to evenly distribute the load across all wheels.
Our factory specializes in both lifting and driving equipment:
The main beam is rigidly connected to the end beam, with wheels at the ends to support the bridge and allow it to move along the elevated track. A rail is welded onto the main beam for the lifting trolley to run along. The main girder of a bridge crane comes in several typical structures, such as box-shaped, four-truss, and hollow truss designs.
The metal structure of the bridge includes the main beam and end beam, and can be classified into two types: single main beam bridges and double girder bridges. A single main beam bridge consists of one main beam with end beams on either side of the span, while a double girder bridge has two main beams along with end beams.
Features of Beam Cranes:
Beam cranes include single-girder and double-girder bridge cranes.
In single-girder bridge cranes, the main beam is constructed using an I-beam or a combination of steel sections and plates. Lifting trolleys are commonly equipped with chain hoists, electric hoists, or other lifting mechanisms.
These cranes can be categorized based on their support type—either supported on a vehicle beam or suspended from the ceiling. The former runs along the track on the vehicle beam, while the latter moves along a track beneath the building's roof. Single-girder bridge cranes are available in manual and electric versions. Manual models have lower speed and lifting capacity but are lightweight, easy to produce, and cost-effective. They are suitable for low-demand environments where power supply is not available. These cranes use manual monorail trolleys and chain hoists for lifting.
Electric single-girder cranes, on the other hand, offer higher speed, greater productivity, and larger lifting capacities. They consist of a bridge frame, running trolley mechanism, electric hoist, and electrical components.
What is a Gantry Crane?
A gantry crane is a type of overhead crane that sits on two legs, forming a gantry-like structure. It operates on ground tracks and is widely used in open areas like storage yards, docks, power plants, ports, and railway freight stations. Its lifting mechanism, trolley movement system, and bridge structure are similar to those of a standard bridge crane. Due to its large span, gantry cranes often use separate drive systems to prevent misalignment, reduce resistance, and avoid potential accidents.
Port Crane Specialist: Let’s start by understanding how cranes work:
Crane Operating Principle:
The basic operation of a crane usually involves four active and driven wheels. However, when dealing with heavy loads, more wheels are often added to reduce the pressure on each wheel. When the number of wheels exceeds four, an articulated equalization frame is typically used to evenly distribute the load across all wheels.
Our factory specializes in both lifting and driving equipment:
The main beam is rigidly connected to the end beam, with wheels at the ends to support the bridge and allow it to move along the elevated track. A rail is welded onto the main beam for the lifting trolley to run along. The main girder of a bridge crane comes in several typical structures, such as box-shaped, four-truss, and hollow truss designs.
The metal structure of the bridge includes the main beam and end beam, and can be classified into two types: single main beam bridges and double girder bridges. A single main beam bridge consists of one main beam with end beams on either side of the span, while a double girder bridge has two main beams along with end beams.
Features of Beam Cranes:
Beam cranes include single-girder and double-girder bridge cranes.
In single-girder bridge cranes, the main beam is constructed using an I-beam or a combination of steel sections and plates. Lifting trolleys are commonly equipped with chain hoists, electric hoists, or other lifting mechanisms.
These cranes can be categorized based on their support type—either supported on a vehicle beam or suspended from the ceiling. The former runs along the track on the vehicle beam, while the latter moves along a track beneath the building's roof. Single-girder bridge cranes are available in manual and electric versions. Manual models have lower speed and lifting capacity but are lightweight, easy to produce, and cost-effective. They are suitable for low-demand environments where power supply is not available. These cranes use manual monorail trolleys and chain hoists for lifting.
Electric single-girder cranes, on the other hand, offer higher speed, greater productivity, and larger lifting capacities. They consist of a bridge frame, running trolley mechanism, electric hoist, and electrical components.
What is a Gantry Crane?
A gantry crane is a type of overhead crane that sits on two legs, forming a gantry-like structure. It operates on ground tracks and is widely used in open areas like storage yards, docks, power plants, ports, and railway freight stations. Its lifting mechanism, trolley movement system, and bridge structure are similar to those of a standard bridge crane. Due to its large span, gantry cranes often use separate drive systems to prevent misalignment, reduce resistance, and avoid potential accidents.
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