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Offshore CraneSUBMITDOWNLOAD -
A typed Double Girder Hook Gantry CraneSUBMITDOWNLOAD -
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Yacht Hoisting CraneSUBMITDOWNLOAD
Double Parallel Trolley Ship Building Gantry Crane (Abbr. DPT) is a special lifting device in ship building dock site. DPT is offen with large tonnage in capacity and used in lifting huge structure of main hull. YUNTIAN can manufacture DPT cranes form 50t+50t to 900t+900t in capacity. DPT’s trolleys can lifting hull structures separately or cooperately.The distance of hooks of the two trolley can easily adjust in working. It's adjustable manner make it lifting efficently.
a. Gantry structure
DPT’s gantry structure consist of double box main girder, A frame flexible leg, A frame or I frame rigid leg and spring bearing joint. The main
girder is common welding structure of High strength low alloy structural steel Q345 with yild strength 345Mpa (refer to GB/T1591-2006). Q345
is widely used in crane structure,for its obvious advantages in ecnomic along such high strength low alloy structural steels.The spring bearing
joint connect the main girder and the flexible leg. The main girder can free expand on a neoprene bearing to avoid rail gnawing.
b. Trolley
The trolley consist of trolley structure, hoisting mechanism, trolley travelling mechanism and safety system.Trolley structure is a welding structure
of Carbon structural steel Q235 with yield strength 235Mpa or Q345. A limit switch was mounted on the trolley to limit the trolley travel distance.
Buffers was mounted on the two end of the trolley to avoid demage when crash occur.
c. Hoisting Mechanism
DPT’s Hoisting Mechanism consist of frequency conversion motor,coupling,brake, reducer, drum coupling,drum and wirerope system. The motor
commonly used Jamusi’s or Dalian’s frequency conversion motor.The brake use chinese top brand Jingu or Huawu.The Reducer is hardened
gear reducer. The drum use Q345 steel and the diameter ratio is greater than 18. The wirerope use Nantong or Guizhou wirerope with 18x7
structure, and it’s tensile strength is 1670Mpa.The Pulley is hot rolled pulley or welding pulley with diameter ratio greater than 20. The hoisting
Mechanism has been setted with overload switch and overspeed protection switch.
d. Trolley travel system
DPT’s trolley travel system consist of motor, coupling, brake, hollow shaft reducer and bogies.Buffers mounted on the two ends of the trolley.
Limit switches are mounted on one side of the trolley to avoid demage.Wheel block is always Right angle bearing box or Split bearing box. The
right angle bearing box is the traditional type with widely praised. The split bearing box is advanced design type with advantages of easily
assembly and maintenance. The wheel casted and machined with ZG50SiMn. The wheel has double wheel rims. The wheel rim has enough
strength to avoid the trolley deviation travel.
e. Gantry travel mechanism
DPT’s Gantry travel mechanism consist of bogies and triad reducers.Commonly the driven bogies are half of all bogies. The triad reducer
mounted on the driven bogies. On the idle bogie there is mounted Wheel clamp or anti-wind shoes.Optional rail clamps are mounted under sill
beam to instead wheel clamp. All these safety devices interlock with anemograph.On the end bogie there is rail clearer to clear blocks
unexpected on the rail.There is also mounted rectifying wheel on the end bogie to avoid crook run. A lightning shoe mounted on the end bogie
to conduct the lightning power to the earth.
Packing & Delivery
1. Electrical parts and hoist are packed by strong plywood box, to prevent the rain soaked.
2. Main beam, end beam, platform railing and others are packed in plastic woven cloth, to prevent corrosion in seawater.
FAQ
1. Who are we?
We are based in Henan, China, start from 2009,sell to Africa(23.00%),South America(21.00%),Mid East(14.00%),Southeast Asia(11.00%),North
America(7.00%),South Asia(6.00%),Domestic Market(5.00%),Eastern Europe(5.00%),Southern Europe(4.00%),Oceania(4.00%). There are total
about 51-100 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Overhead crane,Gantry crane,Jib crane,Hoist,Special lifting equipments
4. Why should you buy from us not from other suppliers?
· More than 6 years crane exporting experience with more than 40 elite team.
· Enough experience on large crane project.
· Supply 900tons capacity crane.
· Afer sale service.
· Exporting our crane to more than 100 countries.
· Installation team.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW；
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Western Union,Escrow;
Language Spoken:English,Chinese,Spanish,French,Russian
Shipbuilding Gantry Crane Applications
The Shipbuilding Gantry Crane is a crucial piece of equipment in the maritime industry, specifically designed to enhance the efficiency and safety of ship construction and repair processes. Below are various application scenarios that highlight the versatility and importance of this specialized crane:
Ship Assembly and Construction
The Shipbuilding Gantry Crane is primarily utilized for the assembly of large ship components, such as hull sections, decks, and superstructures. Its ability to lift heavy materials and large prefabricated sections allows shipbuilders to construct vessels with precision and stability. The crane facilitates the seamless transfer of these components from one assembly station to another, significantly speeding up the construction timeline.
Dry Dock Operations
In dry dock facilities, the Shipbuilding Gantry Crane plays a pivotal role in lifting and moving entire vessels. Its robust design can accommodate the weight and size of sizeable ships, allowing for easy access to the hull for repairs, inspections, and maintenance. This capability not only optimizes the workflow within the dock but also ensures safer handling of the vessel during dry docking processes.
Loading and Unloading of Materials
The crane is also essential for loading and unloading materials and equipment required during the shipbuilding process. Heavy steel plates, bulkheads, and piping can be efficiently lifted and maneuvered into position with minimal effort. This function can save valuable time and labor costs, as the crane reduces the physical demands on workers and enhances material handling efficiency.
Facility Maintenance and Repairs
Beyond its primary function in shipbuilding, the Gantry Crane is invaluable for the maintenance and repair of the crane itself and other large machinery within the facility. It can be used to lift and reposition heavy components during maintenance procedures, ensuring that repairs are conducted safely and effectively, thus minimizing downtime.
Customization and Modifications
Shipbuilding Gantry Cranes often support custom projects where vessels undergo unique modifications or retrofitting. The crane's flexibility allows it to handle atypical shapes and sizes, enabling shipbuilders to implement innovative designs and improvements. This adaptability is vital in today's competitive maritime industry, where unique designs can be a significant differentiator.
Training and Simulation
In shipbuilding training programs, these cranes are often integrated into simulations that prepare workers for real-world operations. Trainees can practice various lifting techniques and safety protocols, ensuring they are adequately prepared for the complexities of handling large ship components in a live environment.
In conclusion, the Shipbuilding Gantry Crane is an indispensable tool in the maritime sector, enhancing productivity, safety, and overall operational efficiency. Its wide range of applications makes it a cornerstone of modern shipbuilding facilities, ensuring that the industry keeps pace with the ever-increasing demands for ship construction and repair.
