Double Girder Gantry Crane for Shipbuilding is one kind of gantry crane, it main used to berth assembled hull. This kind of shipbuilding crane has the feature of load and unload, lifting, segmented turning the air. Have the advantage on turning the hull and close operations. The first is through the upward and downward adjustments, the entire segment by car to bear on.

 

Ship gantry crane used in the place of ship manufacture and the dock, its task is to put all the parts required for the manufacture of the ship (ribs, steel and etc.) from the ground transportation to manufacturing place. This transport work must be able to complete the task in a very long journey in transportation quickly. Therefore, the number of cranes decided, enough to reach the dock area of the entire foundation, and each crane mutually interfere with each other in principle.

Crane metal structure main contains the main beam, rigid legs, flexible legs, ground beam and railing, cab etc.

Crane main beam adopts double beam structure, on the panel of the two main beam, there are 4 rails which is used for trolley traveling. One set crane has two main hook, running on a track on the bridge flange, in order to turn and lifting large hull blocks.

In order to light the dead weight, rigid legs adopt box type; flexible legs adopt herringbone frame structure, composed by the joint, two pipes, under the joint.

Crane power supply adopt cable drum. Trolley adopt suspension cable pulley device, set on the top surface of the two main beams.

This crane has overload protection, windproof rail clamp, limit anchoring device, wind speed various institutions, load display device.

 

1. Reasonable structure and favorable performance.

2. Smooth starting and stopping.

3. Safe and reliable traveling, long life.

4. Low noise, commodious cabin with good view.

5. Easy installation and convenient maintenance.

6. Excellent exchangeability for parts and components.

7. Crane drive: IP54 or IP44, level F insulation.

 

1. Weight overload protection device.  

2. Top quality long time bearing polyurethane materials buffer.

3. Crane travelling limit switch.

4. Voltage lower protection function.

5. Emergency stop system.

6. Current overload protection system and so on!

 

1.All products have production permit or recognition permit no fake or renovated products;

2.Quality of all products reach class A or distinguished class;

3.Main data of the products satisfy related codes;

4.Strictly follow technological requirements in manufacturing;

5.Strictly test products with standard testing devices to prevent unqualified products from leaving the plant;

6.Set up complete files to keep order contract, manufacturing record, test record, material receiving certificate and factory-leaving record;

7.All products to be delivered are no-damage in appearance and painting and are supplied with mating parts to satisfy clients.

 

1.Quality problems of products sold by our company will be solved as per the “three guarantees” system of our company by the “three guarantees” service team;

2.Related personnel will be sent to the site immediately after receiving quality complaints (by call, letter or oral notice) from clients;

3.Personnel involved in after-sales service shall be serious and considerate in handling the problem to make clients care-free;

4.In addition to solve quality problems, personnel involved in after-sales service shall train clients, answer their technical inquiries and related questions free of charge;

5.Related cost for products with quality problem will be shouldered by our company. Our company charges for quality problems caused by clients (or problems after the warranty term), but the charge will not be higher than the expense (or cost);

 

1.Main beam will have sandblast derusting and painted with zinc rich epoxy primer;

2.Main beam is cut by plasma numerical control cutting machine;

3.The butt weld of tension flange shall undergo ultrasonic or x-ray flaw detection as specified.