Gantry Crane for Subway Construction | 30 Ton Gantry Crane Project

Gantry crane for subway, metro, tunnel construction. Processed industrial gantry crane for efficient & safe material handling. Get your custom subway crane!

Many cities have suffered from a significant traffic jam as a result of the economy's, population's, and motor vehicle industries all developing at an accelerated rate. A subway system is developted. The subway is a popular mode of transportation in many urban areas because it is cozy, quick, and convenient.

Due to the rapid growth of subways, construction equipment, particularly material handling gantry cranes, is playing an increasingly significant role in the building of subways. On the subject of building gantry cranes for subways, Yuantai has a wealth of experience.

Industrial Gantry Crane for Subway Construction

During the building of a subway tunnel, slag and construction machinery and tools are handled by a gantry crane.

• Crane  capacity: 5-100tons
• Gantry span: 5-35m
• Working temperature: -20℃ to 40℃
• Lifting height: 3-30m or customized
• Lifting speed: single speed: 3-8m/min, or customized; /variable frequency speed: 1-20m/min, or customized
• Working class: A3-A7
• Lifting mechanism: winch trolley or hoist
• Power supply: AC-3Phase-220//230380/400/415/440V-50/60Hz
• Crane Control: wireless remote control, cabin control.
• Safety device: Buffer, current overload protection, overload device, power failure protection
• Painting color: Yellow, orange, blue or customized

Due to the rapid growth of subways, construction equipment, particularly customized gantry cranes, is playing an increasingly significant role in the building of subways. On the subject of building construction gantry cranes for subways, Yuantai can provide your the best fit subway cranes meet your lifting requirments and application conditions.

Rail mounted gantry crane

Rubber tyred gantry crane

Features of subway construction gantry crane

• During subway construction, the gantry crane is used to handle waste materials and other site materials.
• This subway construction gantry crane is suitable for a variety of working conditions thanks to its span-changed function with a minimum step-length of 100mm.
• The cantilever is removable and retainable, making it flexible for use in a variety of working environments.
• There are wind speed detection and warning systems as well as lightning protection systems.
• .The special spreader on the gantry crane used for building subways allows for the quick exchange of the hook and the dregs bucket.
•  It is possible to overturn the dregs at any point in the air thanks to the overturn hook. Hydraulic control over the overturning dregs system gives the process more stability.
• The trolley can transport waste from the front to the side and is rotatable.
•  The lifting mechanism has a double brake, and it operates safely and smoothly with a safety factor of at least 1.75.
•  The motor's insulation grade is F, and its protection level is IP54/IP44.
•  The service life and strength of wire rope are very strong.
• The long and transverse traveling buffers have low noise, large energy absorption, and shock resistance.
• The tread and flange of the wheel are free of casting flaws.
• Safety protection devices include, among others, an anemometer, a rail clamp, an overload limiter, a sound and light alert, a lifting height limiter, a long and cross travel switch, and an emergency power-off switch.

Advantages of subway gantry crane

For handling slag during construction of subway tunnels, a gantry crane is utilized. This crane is primarily in charge of lowering the scraps that the shield excavator removed during the excavation of the subway tunnel.

The subway slag gantry crane has the following features:

•  variable span, which increases crane utilization,
•  cantilever detachable, which is more useful,
• running quickly, heavy work loads, and high efficiency,
• Large span and high lifting height for a large working area,
• and with a special tilting spreader with automatic tipping.

Main parts and components of subway construction gantry crane

A subway construction crane's primary function is to move tunneling equipment or slag during the building of railway tunnels. This gantry crane, which includes the hoist, gantry, driving mechanism, hydraulic turnover mechanism, cab, and electrical equipment, is available with one or two girders.

 Lifting Mechanism

The spreader beam is used as the lifting mechanism, and the flexible lifting belt is used on both sides of the hanging beam.

A hydraulic turnover system, consisting of a hydraulic workstation and a slag turnover hook, is installed on the hoist trolley. The driver controls the operation of the hydraulic turnover mechanism, and the hydraulic cylinder pushes the hook to a specific position when the hanging beam raises the slag bucket to the recommended height. As the slag bucket continues to descend under the driver's control and the slag tipping hook hooks the eccentric overturning shafts on either side, the slag bucket begins to overturn due to the eccentricity of gravity.

Traveling Mechanism

The motor, brake, coupling, reducer, wheel blocks, and other parts that make up the hoist trolley traveling mechanism are also fitted with a rail sweeper, a buffer, and other safety features.

The crane's moving mechanism uses a mode with eight wheels and four drives. The vertical reducer drives the wheels through the motor attached to the bogie, which also has a windproof rail clamp. When a crane is operating normally, the rail clamp leaves the track, and when a crane is not functioning, the rail clamp clamps the track to stop the crane from moving.

 RTG double girder gantry crane for subway construction 

 Operation Cabin

All operating systems are managed inside the cab. The framework of the cab, which is a closed structure, is joined together by profiles. Both the appearance and the structure are exquisite. The driver can clearly see the operating circumstances of the hook working range on the seat thanks to the reasonable structural design. There are air conditioners, an adjustable bench, insulating pads on the bottom plate, tempered glass windows, and fire extinguishers. Loudspeakers can be set up to meet the needs of the user.

Speed Control

The lifting speed can be adjusted steplessly with the change in load, realizing heavy load low speed and light load high speed, which significantly increases the working efficiency of the subway construction crane. The lifting and traveling mechanisms use variable frequency control, with a speed range of 1:10.

30 Ton gantry crane for tunnel construction in Singapore