Overhead Crane Double Beam Crane Bridge Crane Eot Crane Gantry Crane

• Customization: Available
• After-sales Service: Provide
• Warranty: Full
• Model NO.: HC Type Electric Hoist
• Certification: RoHS, CE, ISO9001
• Condition: New
• Maximum Lifting Weight: 50-100t
• Maximum Lifting Height: 25-30m
• Operation Form: Cabin
• Type: Container Gantry Crane
• Main Girder Form: Double Girder
• Transport Package: Bulk
• Specification: Customization
• Trademark: KUANGYUAN
• Origin: China
• HS Code: 8427109000
• Production Capacity: 70000
• Package Size: 2000.00cm * 2000.00cm * 4000.00cm
• Package Gross Weight: 20000.000kg

Product Description

Gantry Crane Double Girder Crane

Gantry crane, commonly known as gantry crane or gantry crane. It is a pictographic term for a gantry crane, which is actually a gantry crane. Gantry cranes are generally used for project installation, such as large equipment, but they require a spacious site. Most of the time, it is used for lifting very heavy goods. Its structure, as the name suggests, is like a gantry, with the tracks laid flat on the ground. The old-fashioned ones have motors at both ends, driving the crane to move back and forth on the tracks. Many gantry types also adopt variable frequency motors and servo drives for more precise installation. 

Specification

Applications

The gantry crane is a variation of the bridge crane. In ports, it is mainly used for loading and unloading operations of goods and bulk cargo in outdoor cargo yards and material yards. Its metal structure resembles a door-shaped frame. Two feet are installed under the main beam, allowing it to walk directly on the ground tracks. The two ends of the main beam can have cantilever beams extending outward. Gantry cranes feature high site utilization, large working range, wide adaptability and strong versatility, and are widely used in port cargo yards.

Key Configurations

Gantry crane
1. Full gantry crane: The main beam has no overhang, and the trolley operates within the main span.
2. Semi-gantry crane: The outriggers have height differences, which can be determined according to the civil engineering requirements of the usage site.
Ii. Cantilever gantry Crane
1. Double cantilever gantry crane: This is the most common structural form, and both the force-bearing capacity of its structure and the effective utilization of the site area are reasonable.
2. Single cantilever gantry crane: This structural form is often chosen due to the limitations of the site.

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

According to the form of the main beam

Single main beam
The single-girder gantry crane has a simple structure, is convenient to manufacture and install, has a small self-weight, and the main girder is mostly a box-shaped frame structure with off-track. Compared with the double-girder gantry crane, its overall rigidity is slightly weaker. Therefore, when the lifting capacity Q is no more than 50 tons and the span S is no more than 35 meters, this form can be adopted. The legs of single-girder gantry cranes come in two forms: L-shaped and C-shaped. The L-shaped type is easy to manufacture and install, has good force-bearing conditions, and has a relatively small self-weight. However, the space for lifting goods through the outriggers is relatively small. The feet of type C are made in an inclined or curved shape, with the aim of providing a larger lateral space to facilitate the smooth passage of goods through the feet.

After Sales Service

Double main beams
Double-girder gantry cranes have strong load-bearing capacity, large span, good overall stability and a wide variety of types. However, compared with single-girder gantry cranes of the same lifting capacity, their own weight is larger and the cost is also higher. According to the different structures of the main beams, they can be further classified into box beams and trusses. Box-shaped structures are generally adopted.

Company Profile

Heavy Menan Mine Crane Co., Ltd.

The structural form welded with Angle steel or I-beam has the advantages of low cost, light self-weight and good wind resistance. However, due to the numerous welding points and the inherent defects of the truss itself, truss beams also have disadvantages such as large deflection, low stiffness, relatively low reliability, and the need for frequent inspection of welding points. It is suitable for sites with lower safety requirements and smaller lifting capacities.

It is made of steel plates welded into a box structure, featuring high safety and great rigidity. It is generally used for large-tonnage and super-large-tonnage gantry cranes. The MGhz1200, with a lifting capacity of 1,200 tons, is the largest gantry crane in China, and its main beam adopts a box girder structure. Box girders also have disadvantages such as high cost, heavy self-weight and poor wind resistance.

It generally refers to an "isosceles triangular honeycomb beam", with the end face of the main beam being triangular, honeycomb holes on the inclined web on both sides, and chord rods at the upper and lower parts. Honeycomb beams absorb the characteristics of truss beams and box beams. Compared with truss beams, they have greater rigidity, smaller deflection and higher reliability. However, due to the use of steel plate welding, its self-weight and cost are also slightly higher than those of truss beams. It is suitable for sites or beam yards with frequent use or large lifting capacity. Since this beam type is a patented product, there are relatively few manufacturers.

According to the form of use
1. 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.
Ii. Gantry Cranes for Hydropower Stations
It is mainly used for hoisting and opening and closing gates, 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.
Iii. Shipbuilding Gantry Cranes
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.