Double Girder Rail Traveling Electric Gantry Cranes With Trolley

Product Description

Double Girder Rail Traveling Electric Gantry Cranes With Trolley are made up of bridge, trolley, crane traveling mechanism and electric system.All the procedures are finished in the operating room. Applies to the open warehouse or rail along for general handling and lifting work. Also can equipped with many lifting device for special work. Prohibited for lifting high temperature solution, flammable, explosive, corrosion, overloading, dust and other dangerous operations.

Matters needing attention

Double Girder Rail Traveling Electric Gantry Cranes With Trolley is composed of wheel group, hook group, drum group, motor, reducer and other accessories. In the use of the process is easy to occur in the fault is chewing rail.
Chewing the track will aggravate the track wear, increase the running resistance, reduce the service life of the wheel, serious damage to the beam structure, even cause derailment accident.
There are many reasons for the formation of gnaw rail, mainly the following:
1. There is a fault on the track surface. Oil or ice on the track surface was not cleaned in time.
2. The corrosion and deformation of metal structure, especially the gantry crane used outdoors, caused the diagonal deviation of the trolley frame due to the corrosion and deformation. The long-term use of the bridge frame is in a diamond shape, resulting in the wheel chewing the track.
3. Poor installation accuracy of big car wheels. The horizontal and vertical direction of the wheel is deviated and out of tolerance. The pressure per unit area of the wheel track is too large due to wear and tear, resulting in uneven wear of the wheel and the phenomenon of rail gnawing.

4. The motors at both ends of the drive have different rotational speeds, and the braking torque of the brake shafts at both ends is different, resulting in inconsistent speed of the wheels on both sides and out-of-sync operation, resulting in track biting.

Troubleshooting of gantry crane operating mechanism

Removing the effects of oil or ice on the track; Adjust the trolley track to meet the installation technical requirements; Check the transmission chain connection, bolt connection, gear coupling engagement and other conditions to eliminate excessive clearance, so that the two ends of the transmission is consistent; Adjust the accuracy of wheel installation. If L and h are measured horizontally and vertically respectively, the horizontal skew is less than L/1000, and the perpendicularity deviation is less than h/1000. Change the starting mode of the motor or replace it with a wound rotor motor, check to ensure the two electric synchronous.

Package & Delivery

Dowell Crane Co., Ltd is a China-leading company in crane manufacture and crane trading business. We serve a broad range of customers from all over the world, providing a complete set of advanced lifting projects, including Gantry crane, Bridge crane, Portal crane,
Beam launcher, Electric winch, Lifting platform and so on. Dowell crane is sticking to the global optimal procurement of raw materials and parts to make innovations in technical details of electric control and mechanical transmission,etc.We continue the wide and deep cooperation with the well-known transnational enterprises such as Simens and Sew in Germany, Schneider in France and ABB in Switzerland, etc.

Company Strength

Dowell Crane Co., Ltd is a China-leading group of crane businesses which was founded in 1955, Only one company has 60years manufacture experience. And serving a broad range of customers all over the world to provide a complete set of advanced lifting project, including Gantry crane, Bridge crane, Jib crane, Accessory. Our clients include manufacturing and process industries, shipyards, ports and so on. Regardless of your lifting needs, dowellcrane Machinery Group is committed to providing you with lifting equipment and services that increase the effectiveness and value of your business.

a). Dowell Crane Co., Ltd have already obtained the CCC,CE,BV,SGS,ISO OHSAS certification's and have won over 60 honors.

b). China's leading mechanical research and design institute and famous university provides advanced technical support for us.

c). Serviced for more than 5000 companies, and the products popular in more than 40 countries.

d). Through decades of unremitting efforts, now, Dowell Crane Co., Ltd covers an area of 180,000 square meters and over 380 sets of advanced equipments. Management staff reach to 860, and our worker have more than 10000.

Packing & Delivery terms:

1. Hoist and electric parts will be packed by plywood crate, for avoiding the demage from goods crash and impact during the delivery.

2. Girders and other main parts will be packed by plastic woven cloth, for preventing rust from soppy condition during the transportation.

3. Only the best transport solution will be taken for saving your cost uttermost on finance, security and time.