Electric Hoist Double Girder Overhead Crane for Maldives

Maldives Customer Industry Background

The client has been doing timber business in the Maldives for more than 40 years and has maintained a good relationship with local government officials and residents because it has always been legal and humane. The one who directly communicated with the professional salesman of our company is the owner of the timber company. The client is over 60 years old. He has rich experience in handling affairs and is rigorous in handling affairs. Before purchasing, he already knew exactly what kind of crane equipment he wanted. Due to the age of the client and the inconvenience of typing, we communicated by phone and video conference, and the process of asking questions and solving them was faster, which also accelerated our cooperation process.

Hoist Double Girder overhead crane Design Process

The customer’s existing workshop space is not large, the size is limited, and the structure is thin. Therefore, to maximize the span, the width of the column needs to be reduced; to maximize the height, it is necessary to thicken the steel plate of the main girder to reduce the height; to minimize the end beam, it is recommended to use the European-style structure, because the parts of the European-style crane are The layout is compact. All in all, the customer is required to achieve the largest working range with the smallest size lifting equipment. Our engineers initially designed the crane span to be the factory’s overall width minus 1.5m. Then modify the span according to the specifications of the actual column rail bearing beam.

electric hoist double girder overhead crane Final Transaction

The customer has been to China and has a good impression of China. He is also satisfied with the crane drawings provided by our company’s engineers. For the problems that non-professional customers care about, the engineers carefully mark them all clearly on the drawings, which is simple and clear, which is more conducive to Customers understanding more three-dimensionally. The final customer ordered three LH-type Electric Hoist Overhead Cranes.

LH Model Double Girder Overhead Crane Description

LH model Double Girder Overhead Crane with hoist trolley consists of box type main girder, end carriages, lifting trolley, long crane traveling system and electrical system. It employs a fixed electric Wire Rope Hoist, which is fitted on a trolley frame as the hoisting mechanism. The capacity is from 5 tons to 32 tons. The span is 7.5~31.5m. The lifting height is 6~30 meters. It has two kinds of classification, that is, light and medium. We also design and manufacture nonstandard cranes according to the user’s requirements. The working temperature is generally -20°C to 40°C. It is forbidden to work in an environment with combustible, explosive or corrosive media.
This product has three control modes: ground operation, Remote Control operation and cab operation, which depends on the different user’s requirements.

Structure and Advantages of LH Type Double Girder Overhead Crane

LH model Double Girder Overhead Crane structure:

Bridge (Crane span structure), Crane traveling mechanism, Electric hoist trolley (equipped with lifting mechanism and cross traveling mechanism), electrical and other components.

①Bridge includes Main beam, End carriages, trolley running track, handrail, walking platform, etc. Main beam: It is the basic component of the whole crane, bearing all kinds of loads, with sufficient rigidity and strength. (Strength is the ability to resist fracture and rigidity is the ability to resist deformation.) Its structure is box girder type. This design has many advantages, such as large overall rigidity, and good manufacturing, assembly, transportation and maintenance conditions. The main beam is generally made into a uniform upward arch shape to reduce the trolley hoist climbing and sliding and enhance the bearing capacity of the main beam.
②Crane traveling mechanism includes wheel, motor, reducer, brake, etc. It is to provide the driving force for the driving wheel so that the whole crane can move front and back along the fixed track.
③Electric hoist trolley——It is installed on the bridge and consists of a lifting mechanism, trolley running mechanism and lifting trolley frame, which can move left, right, up and down. When the lifting capacity is more than 10t, there can be main and auxiliary hooks. The trolley can be equipped with a Fixed CD hoist (Single lifting speed), MD hoist (double lifting speed) and variable speed (Frequency converter) according to the speed requirements of customers.

④Electrical parts: Electric control box (Chint or Schneider Brand), Frequency converter (Optional), Power system with Trolley power supply cable, Crane traveling power line (Slip wire such as mono pole slide, Seamless type bus bar, collector)
⑤Protection equipment includes a Phase protection system; Anti-collision system; Overload protection system; No-voltage protection system; Over-current protection system; Lifting limit protection system; Traveling limit protection system; Ground protection system; Emergency stop protection system; buffer system, which can ensure a safe operation of crane.
⑥Control method: Pendant control, remote control or cab control.

LH model Double Girder Overhead Crane advantage:

LH model Double Girder Overhead Crane can make full use of the space below the bridge to lift materials. It has the advantages of compact size, low building clearance height, light self-weight, small wheel pressure, etc.

Come and Get a Free Inquiry

Our Yuantai Crane Company has been exporting overhead cranes, gantry cranes, jib cranes and electric hoists to the Philippines and other Southeast Asian countries as well as countries around the world for more than ten years. We have very rich experience and a green crane manufacturing industry chain. contact us to get free crane solutions and free quotations, and look forward to our friendly cooperation!