Shield Tunnel Gantry Crane

Shield Gantry Cranes Introduction

Shield tunnel gantry crane is a heavy-duty equipment specially for tunnel construction, to lift and transport large components such as shield machine parts and pipe pieces. Its structure is mainly composed of gantry, lifting mechanism, walking mechanism, electrical system and control system. As the main frame. the gantry is usually made of high-strength steel and has a door-shaped structure that spans the tunnel construction area to ensure sufficient stability and load-bearing capacity.

The lifting mechanism includes a main lifting mechanism and a secondary lifting mechanism. Main lifting mechanism is responsible for lifting heavy shield machine components, and the secondary lifting mechanism is to assist in lifting and precise positioning. The walking mechanism enables the crane to move along the track, usually equipped with a motor drive and braking system to ensure smooth operation within the tunnel. The electrical system provides power and control signals for the crane, including motors, cables, distribution boxes and other components. The control system realizes the various actions of the crane through the operating table or remote control, which has high accuracy and safety. Its overall structure is compact. It could adapt to the narrow spaces in the tunnel, and has high load-bearing capacity and flexibility. This shield tunnel gantry crane type is an indispensable key equipment in shield construction.

Tunnel Gantry Crane with Shield

Advantages and Features of Tunnel Gantry Crane

Strong adaptability: The gate-type structure spans the tunnel working surface and can work flexibly in narrow and long tunnel environments with space limitations to meet the needs of complex construction conditions.
Large load capacity: Shield tunnel gantry crane has strong lifting capabilities, which can easily deal with the lifting of large components and heavy pipe sections of shield machines, meeting the high requirements for large tonnage lifting in tunnel construction.
Accurate control: It adopts advanced control system, supports manual and remote operation, and can achieve high-precision lifting and positioning, improving construction efficiency and safety.
Flexible mobility: Usually installed on tracks, it can move freely along the tunnel direction, making it easy to quickly respond to different operational needs.
Modular design: The structure adopts a modular design, which is convenient for transportation, installation and disassembly. It is especially suitable for projects that require frequent transfer of construction sites.
Strong environmental adaptability: Specially designed to cope with underground humidity and dusty working conditions. Some models also have explosion-proof functions and are suitable for operations under special geological conditions.

Technical Parameters of Tunnel Gantry Crane

Capacity	T	100
Span	m	20	22	24
Altura de elevación	m	30
Lifting speed	m/min	0.37-3.7-6
Trolley travelling speed	m/min	0.5-25
Velocidad de desplazamiento de la grúa	m/min	1.4-14
Max. Wheel load	KN	230	235	240
Rail recommended	Modelo	QU80
Total motor power	kw	145
Crane base distance	W	10700
Crane width	B	16380
Hook left limitation	S1	1750
Hook right limitation	S2	1900

Shield Tunnel Gantry Crane Manufacturer and Supplier

Henan Dafang Crane has specialized in offering heavy gantry cranes for 19 years since 2006. Dafang provides satisfactory double beam shield tunnel gantry cranes to meet clients' needs. Besides, we also provide overhead cranes, light gantry cranes, electric hoists, hooks, crane wheels and jib cranes to meet customers' practical needs.