Shipbuilding Double Girder Gantry Crane
- Capacity:10~500T
- Span:16~40m
- Lifting height: 3~34m
- Lifting speed: 0.2-1.8,4.62,6.25,7.5,9.28,19.8m/min
Double Girder Gantry Crane for Shipbuilding is one  kind of gantry crane, it main used to berth assembled hull. This kind of  shipbuilding crane have 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, steel, 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.
                    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);
 
                    | Capacity | Main | t | 50 | 75 | 100 | 200 | 320 | 400 | 500 | |
| Aux | 10 | 20 | 20 | 32 | 50 | 30 | 80 | |||
| Span | S(m) | 30 | 35 | 40 | 16 | 22 | 18 | 18 | 28.5 | |
| Lifting height | Main | m | Above rail max.22 | 22 | 16 | 12 | 13 | 18 | 3 3/10 | |
| Aux | Above rail max.24 | 17.5 | 13 | 14 | 20.0 | 34.0 | ||||
| Lifting speed | Main | m/min | 7.68 | 6.25 | 4.62 | 0.2-1.8 | 0.14-1.4 | 0.15-1.5 | 0.15-1.5 | |
| Aux | 19.8 | 9.28 | 9.28 | 6 | 7.5 | 6 | 0.6-6 | |||
| Trolley speed | m/min | 38.6 | 38.9 | 13.1 | 20 | 7 | 10 | 1.36-13.6 | ||
| Crane speed | m/min | 42.7 | 17.8 | 16 | 17 | 18 | 1.6-16 | |||
| Work duty | 
 | A5 | A5 | A5 | A5 | A5 | A5 | A5 | ||
| Track | 
 | QU 80 | QU 100 | QU 120 | ||||||
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