A short brief on the liftboats and its features

A liftboat is a self-propelled, multi-purpose, self-elevating vessel. Some have mentioned liftboats as self elevating jack-up barge, lift- up barges, jack-boats. We are going to examine the distinctive features of a liftboat as compared to its nearest full cousin, the jack-up drill rig. Since a liftboat spends most of its operating life out of the water; it is felt, it higher to deal with what it does throughout its working life. Further, let’s look into how it gets to the work site.

The overall liftboat design optimizes the relation of the key features, i.e., one would not need a big deck space without a comparable deck load, etc. looking at the liftboat, there are assured key components to concentrate on.

Legs

The overwhelming majority of liftboats are 3-legged. The 4-legged liftboat will price more than the price of merely adding the price of another leg, i.e., the jacking system to support 2 legs loaded diagonally is bigger and therefore the hull structure is different/heavier. However operationally, the setup time savings of a four-legged equates to cash, so, one needs to weigh the prices and advantages of 3 vs. four legs. Four-legged is quicker. Simply keep in mind that history has shown that 95% of the prevailing liftboat fleet is 3 legs!

Jacking system

The jacking system for a liftboat is extremely different than the jacking system for a jack-up drill rig. The Speed of the liftboat jacking system is important. Whereas a typical jack-up drill rig elevates at 2 feet per minute a liftboat might elevate at four to 6 feet per minute and lower the legs at 14-18 feet per minute. This provides the liftboat the ability to induce on and off location considerably faster.

The jacking system for a liftboat encounters a completely different operating cycle. It might not be uncommon for a liftboat to jack up and down in a 1-year constant number of times that a jack-up drill rig would encounter in its entire lifespan.

Working water depth

The expected wind, wave, and surroundings within the most working water depth must be determined. An area with modest environmental conditions vs. harsh environmental conditions will be a significantly completely different liftboat design in every aspect, i.e., legs, jacking system and hull. As a general rule, as operating water depths and severity of environmental conditions increase, then, prices of the vessel also rise exponentially.

Deck space

The deck space is that the unobstructed, open area. The liftboat crane is employed to move equipment and materials around and onto and off the platform/offshore location. There is a relationship between these variables – open deck space, net deck load and crane capability. Further, you need a crane capability that is coextensive with the expected deck loads and space.

Deck load

The net deck load for a liftboat is what you have got on your deck in transit and can then jack up with on the deck. Consumables (like water, fuel, hydraulic fluid, etc.) are added to the net deck load. Liftboat operators are involved with what they can carry and elevate. There is a certain relationship among deck space, deck load, and crane capability. Liftboats are designed as multi-purpose vessels.

Crane capability

There are a variety of cranes for liftboats. However, there is one caveat – cranes for liftboats are designed by crane makers specifically for liftboats. Weight could be a key thought in liftboat design, so, each thought has to be created within the overall design as well as the crane. Therefore, cranes for liftboats are usually structurally lighter than a comparable offshore crane. To read more about offshore maintenance services visit.

Bubble Film Machine

Three layers Air Bubble Film Machine

bubble film machine
  air bubble film sheet

This aircrew adopts the disposable shaping craft. it is our company that draws domestic and inter national advanced technology extensively,through a great deal of production practices in having ordinary equipment originally, develop, designing,Can produced polyethylene compound bubble (cushion)membrane in succession.designs science,practical,rational in structure of the machine. 

1. This model can produce 2-3 layer bubble film.
2.  Suitable for a wide spectrum of material including
     LDPE , LLDPE and recycled PE.   
3. Bubble size from diameter of    6mm to    32mm,
    according to requirement.
4. Automatic winder optional, which could greatly
    improve production efficiency.

Main Technical Variables:Model

KDPEG-1000 KDPEG-1200 KDPEG-1500 KDPEG-2000

Main&minor Screw Dia.60mm/50mm 65mm/55mm 85mm/65mm 95mm/70mm

Film width:1000mm 1200mm 1500mm 2000mm

Output:120kg/h 160kg/h 180kg/h 250kg/h

L/D:28:1 28:1 28:1 28:1 

Optional equipment:
1) Auto loader
2) Automatic change roller
3) Air shaft


Kingdom Machine co.,ltd team professional produce Plastic Bag Machine,Automatic T-shirt bag making machine,film blowing machine,blown film extrusion,flexo printing machine,stretch film machine,bubble film machine,recycle machine for over 15 years.

Most of our machines export to South Africa,Chlie, brazil, Colombia, Argentina, Peru, Venezuela, Uruguay, Surinam, mexico Egypt, iran, Isrel, bahrain, Cyprus, Iraq, Jordan, Kuwait, Lebanon, Oman, Qata, Saudi Arabia, Syria, Turkey,Nigeria, iran, dubai, south amrica, and other parts of the world. “Kingdom” insists to make machines with simple design, guest first.

Kingdom Machine co,ltd Ruian Economic Zone,Wenzhou,China 325200
Tel:0086-13088651008
Tel:0086-13566179950

Tel.:0086-577-65127709
Fax:0086-577-56848008

[email protected]
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