Overhead Crane Double Girder Eot Crane Gantry Crane Port Container Lifting Crane Overhead Crane

• Customization: Available
• After-sales Service: Provide
• Warranty: Full
• Model NO.: Gantry Crane for Container Lifting Port Handling
• Certification: RoHS, CE, ISO9001
• Condition: New
• Maximum Lifting Weight: 20-50t
• Maximum Lifting Height: 20-25m
• Operation Form: Cabin
• Type: Container Gantry Crane
• Main Girder Form: Double Girder
• Transport Package: Bulk
• Specification: Customization
• Trademark: KUANGYUAN
• Origin: China
• HS Code: 8426193000
• Production Capacity: 70000

Product Description

Ordinary gantry crane 

Track gantry crane
This type of crane mostly adopts box type and truss structure, and is the most widely used. It can handle various individual items and bulk materials, with a lifting capacity of less than 100 tons and a span ranging from 4 to 39 meters. The working level of ordinary gantry cranes with grabs is relatively high. Ordinary gantry cranes mainly refer to hook, grab, electromagnetic and hoist gantry cranes, and also include semi-gantry cranes.

Specification

Applications

Gantry crane of hydropower station
It is mainly used for hoisting and opening and closing, and can also be used for installation operations. The lifting capacity ranges from 80 to 500 tons, and the span is relatively small, ranging from 8 to 16 meters. The lifting speed is relatively low, ranging from 1 to 5 meters per minute. Although this type of crane is not frequently used for lifting operations, once it is put into use, the workload becomes extremely heavy. Therefore, the working level should be appropriately raised.

It is used for assembling the hull on the slipway and is usually equipped with two hoisting trolleys: one has two main hooks and runs on the track of the flange on the bridge frame; Another one has a main hook and a secondary hook, running on the track at the lower flange of the bridge frame to flip and hoist large sections of the hull. The lifting capacity is generally 100 to 1,500 tons. The span reaches 185 meters. The lifting speed is 2 to 15 meters per minute, and there is also a fine motion speed of 0.1 to 0.5 meters per minute.

Key Configurations

Container gantry crane
Used for container terminals. A container rail gantry crane that unloads the quay container transport bridge from the ship by a trailer truck
After being transported to the storage yard or the rear, they can be stacked by container gantry cranes or directly loaded onto vehicles for transportation away, which can accelerate the turnover of container transport Bridges or other cranes. A storage yard that can stack containers 3 to 4 layers high and 6 rows wide is generally tire-mounted, but there are also rail-mounted ones. Compared with container straddles, container gantry cranes have a larger span and the height on both sides of the gantry frame. To meet the transportation needs of port terminals, the working level of this type of crane is relatively high. The lifting speed is 8 to 10 meters per minute. The span is determined by the number of rows of containers to be crossed, with a maximum of about 60 meters. Correspondingly, the lifting capacities of 20-foot, 30-foot, and 40-foot long containers are approximately 20 tons, 25 tons, and 30 tons respectively.

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Model	EX200	EX300	EX400
Operating Weight (kg)	20,000	30,500	45,000
Engine Power (kW)	110	165	220
Bucket Capacity (m³)	0.8–1.2	1.2–1.8	1.8–2.5
Max Digging Depth (m)	6.2	7.5	8.8
Max Reach (m)	9.5	11.2	13.6
Fuel Tank (L)	350	450	600

Composition and Application

According to the industry standard GB/T14406, the gantry crane is mainly composed of the following components: cylindrical wheels, buffers, block brakes, steel wire ropes, lifting hooks, driver's cab, reducers, cast pulleys, cast drums, electric motors, and electrical control equipment.

As a variation of the bridge crane, the gantry crane inherits the main features and performance advantages of the bridge crane. Meanwhile, in practical operation, it also demonstrates the following advantages: Firstly, the hoisting structure is completed relying on the track, eliminating the traditional sources of faults such as tire-mounted trolleys or diesel generator sets, and reducing the failure rate during the operation of the crane. Secondly, gantry cranes are mostly driven by electricity. During operation, there is no need to change the engine oil, and the maintenance consumables are effectively controlled. The maintenance and repair costs are small, the cost is low, and the economic benefits are significant. Secondly, during the track hoisting process of the gantry crane, the track remains in a fixed state. Combined with the positioning device of the large vehicle, it avoids the problem of deviation when the load force is relatively high, and has a high level of automation. Finally, during the operation of the gantry crane, if an external high-voltage power supply is directly connected and the mechanism does not move, it basically will not cause noise pollution or air pollution. Moreover, by introducing an energy feedback device, energy feedback can be achieved when the hoisting mechanism is descending, thus achieving the purpose of saving energy consumption.

Company Profile

Henan Province Mine Crane Co., Ltd. 

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. 

Selection of gantry cranes
It complies with the relevant provisions of General Gantry Cranes GB/T 14406-2011 [3] and GB5905-86.
Under normal circumstances, for lifting capacities of less than 50 tons and spans of no more than 35 meters, without special usage requirements, it is advisable to choose the single-girder type. If a large width of the portal legs, a high working speed, or frequent lifting of heavy and long items are required, a double-girder gantry crane is recommended.
Ii. Span and cantilever length
The span of a gantry crane is an important factor affecting the crane's own weight. During the selection process, under the premise of meeting the equipment usage conditions and conforming to the span series standards, the span should be reduced as much as possible.

The principle for determining the track length
(a) It can meet the stability requirements of the portal frame along the direction of the crane track;
(b) The external dimensions of the goods should be able to pass smoothly through the flat steel frame of the outriggers.
Iv. Determination of the spacing dimensions of the gantry crane
During work, there should be a certain space dimension left between the external dimensions of the gantry crane and the goods in the storage yard as well as the transportation vehicle passageways to facilitate loading and unloading operations. When general transport vehicles are loading and unloading within the span, they should maintain a distance of more than 0.7 meters from the door legs. When the lifting gear is not in use, it should be kept at a distance of more than 0.5 meters from the transport vehicle. When the goods pass through the door legs, there should also be a distance of more than 0.5 meters. 

Operating procedures
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Before work
Inspect components such as the brake, hook, steel wire rope and safety devices in accordance with the requirements of the inspection card. If any abnormal phenomenon is found, it should be eliminated first.
2. The operator must confirm that there is no one on the walkway or track before closing the main power supply. When the power circuit breaker is locked or has a warning sign, it should be removed by the original relevant person before the main power supply is closed.
At work
When lifting a heavy object for the first time in each shift (or when the load reaches its maximum weight), the object should be lifted 0.5 meters above the ground and then lowered again to check the performance of the brake. Only after confirming that it is reliable can normal operations be carried out.
2. During operation, the operator should sound the alarm for the following operations as required.
 Lift and lower heavy objects; When the large and small vehicles are in motion. Gantry crane
When a crane passes through with poor visibility, it should continuously ring the bell to sound the alarm.
When a crane approaches another crane in the span while traveling.
When lifting heavy objects and approaching people.
3. During operation and running, it should be carried out in accordance with the uniformly prescribed command signals.
4. When a sudden power outage occurs during operation, all controller handles should be set to the "zero" position. Before resuming work, it is necessary to check whether the crane's operation is normal.
5. During normal operation of the crane's main and auxiliary trolleys, it is strictly prohibited to brake and stop the vehicle in reverse. When changing the movement directions of the large and small vehicles, the handle must be placed in the "zero" position to ensure that the mechanism has completely stopped before starting the vehicle in the opposite direction.
For cranes with two hooks, when changing the main and auxiliary hooks or when the heights of the two hooks are close, the main and auxiliary hooks must operate separately to prevent them from colliding.
7. Cranes with two hooks are not allowed to lift two objects simultaneously with both hooks. Adjust the brake of the hoisting mechanism when it is not in operation.