Description

The Hydraulic Mobile Harbor Gantry Crane, with its rail-traveling capability, is a testament to precision engineering. The traveling mechanism, housed under the portal base, can travel along the track set on the ground with utmost precision. This precision sets it in stark contrast to the fixed portal crane, which is stationary. The rotating part, equipped with a boom and mechanisms for lifting, rotating, and luffing, further enhances its precision. These four mechanisms work in perfect synchronization, ensuring that the crane can accurately install equipment or hull segments or precisely carry out cargo loading and unloading tasks.

Structural composition

The Hydraulic Mobile Harbor Gantry Crane has the following characteristics:

Door seat structure

The portal is the supporting foundation of the crane, usually made of steel components welded or bolted together. It consists of two tall outriggers and a crossbeam connecting the outriggers, forming a stable portal frame. The outriggers are generally box-type structures with good compression and torsion resistance, capable of bearing the dead weight of the crane and various loads during operation. The crossbeam provides support for the bridge and slewing part.

A gantry-traveling mechanism is installed under the gantry, which enables the crane to move along the track laid on the port floor to achieve cargo loading and unloading operations at different locations. The gantry-traveling mechanism is usually composed of a drive motor, a reducer, a wheelset, a coupling, and a brake. The motor drives the wheels to roll on the track, driving the gantry to move as a whole.

Rotating platform

It is installed on the slewing bearing at the top of the portal seat and can slew 360 degrees around the vertical axis. The slewing platform is equipped with important components such as the lifting mechanism, luffing mechanism, slewing mechanism, and driver's cab.

The slewing mechanism consists of a motor, a reducer, a slewing bearing, and a driving gear. The motor drives the gear to mesh with the gear ring of the slewing bearing, driving the slewing platform to rotate so that the working range of the crane covers a circular area, improving the flexibility and efficiency of the operation.

Lifting mechanism

The lifting mechanism is a key component for lifting goods and is mainly composed of a motor, a reducer, a drum, a wire rope, a pulley block, and a hook. The motor drives the drum to rotate through the reducer, and the drum winds or releases the wire rope. After the ratio of the pulley block is changed, the lifting and lowering movement of the hook is realized, thereby completing the lifting and lowering operations of the goods.

In order to meet the lifting requirements of different goods, the lifting mechanism usually has a variety of speed adjustment functions and is equipped with complete safety protection devices, such as a lifting height limiter, overload protection device, brake, etc., to ensure the safety and accuracy of the lifting operation.

Luffing mechanism

The luffing mechanism is used to change the amplitude of the boom, that is, the distance from the front end of the boom to the rotation center of the crane. Common luffing mechanisms include wire rope traction type and rack transmission type. The wire rope traction type luffing mechanism drives the drum to retract and release the wire rope through the motor, driving the boom to rotate around the hinge point to achieve luffing; the rack transmission type luffing mechanism drives the motor to drive the gear to mesh with the rack fixed on the boom to drive the boom to luff.

The luffing mechanism is also equipped with corresponding safety protection devices, such as amplitude limiters, buffers, etc., to prevent the boom from exceeding the specified amplitude range and ensure the safe operation of the crane.

Electrical control system

The electrical control system is the "brain" of the crane, which is used to control the operation of various mechanisms and realize various actions of the crane. It usually adopts an advanced programmable logic controller (PLC) or computer control system and realizes precise control of the start, stop, speed regulation, and forward and reverse rotation of the motor through input devices such as operating handles, buttons, and touch screens.

The electrical control system also integrates various sensors, such as position sensors, weight sensors, wind speed sensors, etc., to monitor the working status and environmental parameters of the crane in real time and perform corresponding control and protection based on this information. For example, when the lifting weight exceeds the rated value, the system will automatically stop the lifting action and send out an alarm signal; when the wind speed exceeds the specified value, the system will limit the operating range of the crane or stop the operation to ensure safety. In addition, the system also has fault diagnosis and alarm functions, which can quickly locate and handle faults and improve the reliability and operation efficiency of the crane.

technical parameters

Lifting	Working		Lifting Height		Working Speed
Capacity	Range(m)		(m)		Working Speed
(t)	Min.	Max.	Above Rail	Below Rail	Lifting	Luffing	Slewing	Traveling
	Min.	Max.	Above Rail	Below Rail	(m/min)	(m/min)	(m/min)	(m/min)
5	6.5	18	12	6	40	30	1.46	15
10	6.5	18	12	6	40	30	1.46	15
10	8.5	25	13	8	35	28	1.2	20
10	8.5	30	25	15	60	52	1.5	26
10	9.5	33	16	15	60	50	1.5	25
16	9.5	22	25	15	40	50	1.5	25
16	9.5	33	25	15	55	55	1.48	25
25	9.5	22	25	15	30	55	1.48	25
16	10	35	22	15	55	55	1.5	25
25	10	25	18	15	30	55	1.5	25
25	10	33	26	16	50	50	1.4	25
35	10	25	26	16	50	50	1.4	25
40	9	19	12	15	18	18	1	26
25	9	25	12	15	30	18	1	26
40	11	30	23	12	18	24	1	25
			23	12	18	24	1	25
Note: 1. Larger load capacity crane not listed herein can be offered on request; 2. Explosion-proof requirements in the inquiry. 3. The above data is only for reference. Lifting capacity, working radius, and lifting height could be customized based on client request.

core advantage

core advantages

The advantages of Hydraulic Mobile Harbor Gantry Cranes are also very significant

High Flexibility in Operation

Comprehensive Operation

The slewing platform of the portal Hydraulic Mobile Harbor Gantry Crane can rotate 360 degrees. Coupled with the luffing and horizontal movement of the boom, it can conduct loading and unloading operations in a large circular area centered on the crane, covering a wide range.

Easy to Move
Moving via rail, the crane can be flexibly positioned within a specific range of the quay shoreline. Compared with other fixed or semi-stationary lifting equipment, it can quickly reach the designated operation point, adapt to the loading and unloading needs of different ships, and reduce waiting time.

Metallurgical Solutions

High - tonnage Operation
This type of crane usually has a large lifting capacity, ranging from tens of tons to hundreds of tons, and can meet the loading and unloading requirements of various large cargoes. When loading and unloading large machinery and equipment, heavy containers, or large ship components in ports, Hydraulic Mobile Harbor Gantry Cranes can complete tasks with ease due to their powerful lifting capacity, which is unmatched by many small cranes.

Stable Lifting
The advanced lifting mechanism and precise control system ensure that goods remain stable and secure during the lifting process. Even when handling heavier loads, shaking and tilting are effectively minimized, which reduces the risk of cargo damage and safety incidents.

Chemical Solutions

Multi - mechanism Coordination
Several mechanisms, such as lifting, slewing, luffing, and gantry-traveling operations, can work together to facilitate the rapid loading and unloading of goods.

Automatic Operation
With the ongoing advancement of science and technology, modern portal Hydraulic Mobile Harbor Gantry Cranes are now equipped with sophisticated automatic control systems. These systems enable precise positioning and operation, reducing the likelihood of human error and enhancing loading and unloading efficiency. Additionally, some cranes can be operated remotely, allowing the operator to control them from a safe distance away from the job site. This capability not only improves safety but also adds convenience to the operation.

Petrochemical Solutions

Various Goods
The equipment can be fitted with various types of spreaders, including hooks, grabs, and container spreaders, to accommodate the loading and unloading requirements of different goods.

Site Condition Compatibility
The rail-mounted design enables the crane to operate on designated tracks within the port, requiring minimal site flatness and load capacity. Even in older wharves or areas with challenging site conditions, it can be smoothly installed and operated, showcasing its strong adaptability.

application

The application of Hydraulic Mobile Harbor Gantry Crane is very wide

Container handling

In container terminals, portal rail-mounted mobile port cranes are one of the important pieces of equipment for container handling and unloading. It is able to quickly and accurately lift containers from ships and place them onto transport vehicles or terminal yards.

Ship repairs

In ship repair yards, portal rail-mounted mobile port cranes can be used to lift parts and equipment required for ship repairs.

Bulk cargo handling

For the loading and unloading of bulk cargo such as coal, ore, and grain, portal rail-mounted mobile port cranes are usually equipped with special spreaders such as grabs. At the bulk terminal, the portal rail-mounted mobile port cranes can lift bulk cargo from the ship's hold.

Loading and unloading of general cargo

At the general cargo terminal, the portal rail-mounted mobile port crane can utilize hooks or other specialized spreaders to handle general cargo of diverse shapes and sizes.

Our Service

One-Stop Marine Lifting Equipment Factory in China

Pre-sale service

Provide 24-hour online consultation to deeply understand the needs of customers in terms of the production process, environment, budget, function, performance, and specifications. According to the needs of customers, organize the team to design a detailed, customized plan.

Installation service

Carry out a special project tracking mechanism, regularly report the production progress to customers, and strictly follow the design requirements and relevant standards for production to ensure product quality.

After-sales service

Responsible for installation and commissioning, ensuring the normal use of equipment, and training customers. Provide a 2-year warranty, carry out an after-sales service hotline, and respond to customers' after-sales needs promptly. Accessory support for the product. Regular return visits to customers.