L gantry crane is mainly composed of gantry, crane crab, trolley travelling mechanism, cab and electric control system. 

The gantry is of a box-shape structure.The crab adopts vertical reaction wheel when the lifting load is below 20t, and horizontal reaction wheel when above 20t to run at the girder side.The girder is of single-girder bias track and the leg is L-shaped SO that the lifting space is large and the spanning ability is strong, making it easy to Covey articles from the span to under the jib. 

The closed cab is employed for operation, where there are adjustable seat, insulating mat on the floor, toughened glass for the window, fire extinguisher, electric fan and auxiliary equipment such as air conditioner,acoustic alarm and interphone which can be furnished as required by users. Simple structure and smaller weight and price. Simple erection:sill beam and leg are 

 boIted main girderis on leg hangbeamand hoist is under slot steel. Operation control is safe and ground and hook speedis conveniently controlled to corer work area.

A Electric hoist frame gantry crane is a box type single girder gantry crane, consists of four parts, for bridge frame, L type supporting legs, electric trolley and crane traveling mechanism,

and all electric equipment. The control method is cabin, remote control and pendent line. And generally for lifting steel ladles, tubes, or other long goods, the L shape structure is very 

convenient for electric trolley traveling and goods overturn.

Single-girder gantry cranes have simple structures, are easy to manufacture and install, have low mass, and their main beams are mostly off-track box-type structures. Compared with 

double-girder gantry cranes, their overall rigidity is weaker. Therefore, when the lifting capacity Q≤50t and the span S≤35m, this form can be used. Single-girder gantry crane legs

are available in two  types: L-type and C-type. The L-type is easy to manufacture and install, has good force bearing conditions, and has a small mass. However, the space for hoisting

goods through the legs is relatively small. The C-type legs are made to be inclined or curved in order to have a larger lateral space so that the goods can pass through the legs smoothly.

Features:

Simple and compact structure, steady performance.

Easy to install and high efficiency.

Overload, low voltage protective device. 

Pendent control and remote control.

Easy maintenance.

L type single girder gantry crane with hoist is applied for handling and convey operation outdoors, or at warehouse, stock ground, railway station, sea port cargo area, etc.

A Electric hoist frame gantry crane is a box type single girder gantry crane, consists of four parts, for bridge frame, L type supporting legs, electric trolley and crane traveling mechanism,

 and all electric equipment. The control method is cabin, remote control and pendent line. And generally for lifting steel ladles, tubes, or other long goods, the L shape structure is very

convenient for electric trolley traveling and goods overturn.

Gantry crane is a variation of bridge crane, also called gantry crane. It is mainly used for loading and unloading of outdoor cargo yards, material yards and bulk carg. Gantry crane

has the characteristics of high site utilization, large operating range,  wide adaptability and strong versatility, and is widely used in port cargo yards.

Its metal structure is like a door-shaped frame, with two legs installed under the load-bearing main beam, which can walk directly on the ground track, and the two ends of the

main beam can have outward cantilever beams.

Application Scenarios of L Typed Single Girder Hoist Gantry Crane

The L typed single girder hoist gantry crane is a highly versatile and efficient lifting solution, expertly designed for a variety of outdoor and indoor applications. Its unique structure and 

functionality make it ideal for numerous operational environments, including:

Outdoor Construction Sites

The gantry crane is particularly beneficial on construction sites where heavy materials need to be moved. Its ability to handle large loads such as steel beams and concrete blocks allows 

for efficient project progression.

Warehouses and Storage Areas

In warehouses, this crane excels in organizing and relocating goods, ensuring smooth operations. It can be utilized for both loading and unloading items from trucks or containers, optimizing 

space and enhancing inventory management.

Railway Stations

The crane can effectively manage cargo movement in railway stations, where it is necessary to load and unload freight from trains. Its design accommodates various cargo shapes and 

sizes, making it a reliable choice for transport logistics.

Seaport Cargo Areas

At sea ports, the gantry crane plays a crucial role in the loading and unloading of containers and bulk materials. Its ability to navigate large areas and handle substantial weights directly 

contributes to the efficiency of port operations.

Material Yards

The gantry crane is well-suited for material yards where raw materials such as pipes and steel sheets need to be moved and stacked. Its L shape design facilitates smooth movement of 

items while preventing overturn, making it particularly effective for handling long goods.

Factories and Manufacturing Facilities

Inside manufacturing plants, the crane assists in transporting parts between assembly stations and loading finished products for shipping. Its versatility allows it to adapt to various 

production flows.

Structural and Operational Features

The L type single girder gantry crane consists of:

Bridge Frame: A robust and durable structure that supports heavy loads while ensuring stability during operation.

L Type Supporting Legs: These legs are designed to provide ample clearance and strength, allowing for smooth navigation along ground tracks.

Electric Trolley: This component aids in the precise movement of loads, enhancing operational efficiency.

Crane Traveling Mechanism: Facilitates the safe maneuvering of the crane across the working space, making it easy to reposition for different lifting tasks.

Electric Equipment: This includes various operational controls such as cabin controls, remote control, and pendant controls that provide flexibility in operation.

Conclusion

In summary, the L typed single girder hoist gantry crane is an indispensable tool across various sectors. Its structural design and functional capabilities not only optimize workspace 

utilization but also ensure safe and effective handling of materials in diverse environments. Whether in construction, transportation, manufacturing, or storage applications, this gantry 

crane's adaptability and efficiency make it a vital asset for modern logistical operations.