We are one of the largest and most professional crane manufacturers in China, with total sales of more than 1.6 billion US dollars last year, including sales of 11,000 sets of double-beam and gantry cranes, more than 73,000 sets of single-beam cranes, and more than 100,000 sets of electric hoist and accessories.
We have an advanced, green, whole-industry chain, intelligent manufacturing industrial park, with an investment of 370 million US dollars and more than 4,700 employees, which has been established for more than 20 years.
It can be mounted on singlebeam,bridge,gantry and arm cranes, with slight modification,it can also be used as a winch. It is widely used in factories,mines, harbours,warehouses,cargo storage areas and shops,essential in raising working efficient and improving working conditions.
The main differences between portal cranes and bridge cranes lie in their structural design, application scenarios, and movement methods. The following is a summary of the specific differences:
Structure and Leg Design
Gantry Crane: It adopts a "gate" shaped frame, with two legs installed under the main beam, which can move directly on the ground track; the two ends of the main beam are usually equipped with cantilever beams to expand the working range. This design makes it more stable and suitable for large-span operations.
Bridge Crane: The bridge frame is fixed at both ends to high-altitude tracks or concrete columns, resembling a bridge, without leg structures. The bridge frame moves longitudinally along the high-altitude tracks, suitable for material lifting in enclosed spaces.
Application Scenarios
Gantry Crane (Gantry Hoist):
Mainly used outdoors: such as in port cargo yards, open-air material yards, railway hubs, etc., suitable for loading and unloading large materials like containers and bulk cargo.
Characteristics: High site utilization rate, strong wind resistance, and adaptable to complex environments.
Bridge Crane (Overhead Crane or Crane):
Mainly used indoors: such as in factory workshops and warehouses, suitable for lifting medium and small-sized goods (such as mechanical parts, plates).
Characteristics: High operational flexibility, suitable for narrow spaces, and not affected by ground equipment.
Movement Method and Track Position
Gantry Crane:
The tracks are laid on the ground, and the legs move along the ground tracks, with a large lateral span of the main beam.
Bridge Crane:
The tracks are set up at high altitudes (such as factory trusses or supports), and the bridge frame moves longitudinally, utilizing the space under the bridge for lifting.
Design and Complexity
Gantry Crane design is more complex, requiring considerations of leg load-bearing capacity, wind resistance, etc., with various models (such as single/double main beams, L/C/A type legs).
Bridge Crane structure is relatively simple, mostly standardized designs, commonly seen in single or double trolley types.
Load Capacity and Applicability
Gantry Crane: Has a larger load capacity (such as over 40 tons), suitable for heavy materials.
Bridge Crane: Has a moderate load capacity, mainly for medium and small-sized materials, with a higher operation frequency.
Summary: When choosing, it is necessary to comprehensively consider the working environment (indoor/outdoor), material type (heavy/light), and site conditions (span, height). For example, gantry cranes are preferred for container loading and unloading in ports, while bridge cranes are more suitable for factory production lines.
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