Overhead Gantry

Trolley overhead gantry

 

The overhead gantry crane is a lifting equipment for lifting materials over workshops, warehouses and storage yards. It is shaped like a bridge because its two ends are perched on tall cement columns or metal supports. The bridge frame of the single-beam bridge crane runs longitudinally along the track laid on both sides of the elevated frame, which can make full use of the space below the bridge to lift materials without being hindered by ground equipment. It is the most widely used, the largest number of a kind of lifting machinery.

 

The lifting capacity is 1~30 tons, the applicable span is 7.5m-26m, the working temperature is -25°C~+40°C, and the humidity is ≤84%. It works in an environment without fire, explosion and corrosive media, and it is forbidden to lift liquid metal, toxic, flammable, and explosive items.

Application: overhead gantry crane is an important tool and equipment for mechanization and automation of production process in modern industrial production and lifting transportation. Therefore, high safety factor overhead gantry crane has been widely used in indoor and outdoor industrial and mining enterprises, iron and steel chemical industry, railway traffic, port terminals and logistics turnover departments and places.

 

There are three electrical control modes according to the different operating forms, one is to control on the ground with a cable button box suspended from the electric hoist; the other is to control on the ground with a remote controller through a wireless receiving device connected to the electric hoist; the latter is to operate in the cab on the side of the bridge.
 

The first two types of operators walk with the vehicle, and the running speed of the bridge frame cannot be very fast, generally no more than 45m/min, 20 m/min, while the operator's cab can make the bridge frame run faster, 45 m/min.
 

 

 

The Dejun brand overhead gantry crane power supply is introduced by the angle steel or trolley line on one side of the plant, while the electric hoist is powered by cables. The electric hoist and the whole crane are equipped with safety devices, such as lifting weight limiter, lifting limit switch, end limit switch, fire limit switch, etc.
 

This product is mostly used in machinery manufacturing, machinery assembly and warehouses, etc. Its structural characteristics are as follows:
 

Lifting Weight(t)	1				2				3				5				10				16				20
Span(m)	7.5	10	15	18	8	13	18	27	7.5	12	18	23	8	12	15	18	8	12	15	20	12	19	25	28	10	16	19	26
Working Speed (m/min)	Ground 20								Ground 30								Ground 20		Ground 30		Ground 20				Ground 20
Model of Electric Hoist	CD1 Model								MD1 Model								CD1 Model		MD1 Model		CD1 Model		MD1 Model		CD1 Model		MD1 Model
Lifting Speed(m/min)	8								8/0.8								7		7/0.7		3.5		3.5/0.35		3.5		3.5/0.35
Hoisting Height(m)	6、9、12、18、24、30 or Customized
Working Class	A3、A4
Electric Current	Three-phase AC 380V 50Hz or Customized

 

Metal structure part:
 

The main girder is generally welded by steel plates to form a box-shaped solid-web girder. The beam is also welded into a box shape with steel plates. For the convenience of storage and transportation, the main beam and the beam are connected with high-strength bolts.
 

Electric hoist:
 

The electric hoist can lift heavy objects and move longitudinally along the main beam on the lower flange of the I-beam under the main beam. The main varieties are CD1 and MD1.
 

For CD1 type, the lifting speed is 8m/min (when the lifting capacity is 10 tons, the lifting speed is 7m/min);
 

The MD1 type is a double-speed hoist with a lifting speed of 8 m/min and 0.8 m/min (when the lifting capacity is 10 tons, the lifting speed is 7 m/min and 0.72 m/min).
 

Standard lifting heights are 6m, 9m, 12m, 18m, 24m, 30m and so on. There are two types of hoist running speed along the main beam: 30m/min and 20m/min, generally 20m/min.
 

Operating mechanism:
 

This product adopts separate driving form, which is completed by a conical braking asynchronous motor, and the deceleration device adopts a "one open, one closed" gear reduction transmission.
 

Electrical equipment
 

The running motor of our products is a conical braking asynchronous motor. The electric hoist and the whole machine are equipped with safety devices, such as: lifting limit switch, cart end limit switch, etc.

 

 

Service/Policy/Warranty or after-sales service:

 

1. Technical training arrangements

Online technical personnel guidance, to provide customers with electrical, mechanical, crane operation and other aspects of technical support.

 

2. Warranty service plan

24 hours service, real-time reply to users about the consultation.

Execute the contract and product delivery according to the requirements of the company, and fulfill the obligation of product technical and quality consultation.

 

3. Emergency maintenance methods

Through email, telephone, video and other online means to guide customers to operate, if necessary, can arrange professional and technical personnel to offline operation.

 

4. Maintenance service standards

During the warranty period, we are responsible for the maintenance, troubleshooting, free of charge to provide non-improper operation and non-external reasons for the replacement of parts and accessories, we will be timely delivered by land, sea, air and other modes of transportation within 2 working days after confirmation.

Replacement of parts due to improper operation or external damage shall be borne by the buyer.

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