Changlin ship launching air bag ¡ª how to select air bags?
Air bag diameter
The air bag diameter is mainly decided by the ship blocks' height. Ship lifting from blocks is the most important stage in the air bag launching process. At this stage, the ship whole weight is to be lifted by air bags, and the air bag working height must be larger than the block height. The air bag diameter should be selected according to the block height. The air bag diameter must be increased by 0.5m-0.7m, which is based on the block height, otherwise the air bag bearing capacity may be not enough.
At present air bags with diameter less than 1.2m can only be applied on small ships. Air bags with diameter 1.5m or 1.8m are used to launch over 10, 000dwt ships. For block height larger than 0.9m, diameter 1.5m air bags are mostly chosen for the launching. For block height larger than 1m, diameter 1.8m air bags are preferred.
Air bag length
For small ships, the air bag length should be slightly larger than the ship molded breadth. Air bag length can be decided by the formula: b
When moving a tug, a fishing boat and the like ship with small block coefficient, air bag ends must extend out of the ship sides, to get good stability of the ship moving. The extended length at each side should be slightly larger than air bag diameter.
For medium ships, the extended length at each end shall not be very long. For example, a normal ship like cargo ship with block coefficient cb > 0.75, airbag should be equal to the breadth of flat bottom at mid-ship (the breadth excludes arc part at bilge).
For large ships, if existing airbag length is shorter than the flat bottom breadth, the longest air bags should be ordered. The airbags layout can be interlaced mode or twin-row mode. We would like to provide advice and suggestion according to customer's specific situation.
We are a leading manufacture of the ship launching airbag , pneumatic rubber fender, foam filled rubber fender, our product are wildly used in the shipyard , docking , seaport and ship salvage. Dimensions can be made according our customer's need.
Material Natural Rubber
Color Black
Brand RABBIT
Size/Dimension 75 mm x 75 mm to 150 mm x 150 mm
Structure DO Type &DD Type
Weight 24 KG per Mtr
A marine rubber fender acts as a dock bumper to absorb the kinetic energy of a boat/vessel during berthing against a jetty or a quay wall. A superior fender product can protect both the vessel and the berthing structure berthed against, preventing any damage and save on repair costs. Our port and ship fenders are manufactured with quality raw materials and made sure to comply with various international industry standards.
The Mercury Verado 250 is a high-performance outboard motor known for its power and reliability. Here are some key specifications:
Engine Type: 4.6L V8
Horsepower: 250 hp
Steering: Digital Throttle & Shift (DTS)
Starter: Electric
Shaft Length: Available in 25" (X-Long) and 30" (XX-Long)
Power Trim & Tilt: Yes
Fuel System: Electronic Fuel Injection (EFI)
Alternator: 115-amp
Weight: Approximately 600 lbs (272 kg)
Cooling System: Water-cooled with thermostat & pressure-controlled
The Verado 250 also features the Advanced MidSection (AMS) for reduced vibration and noise, and Adaptive Speed Control (ASC) for maintaining engine RPM despite changes in load or conditions12.
The Volvo Penta TAMD41M-A is a reliable and powerful marine diesel engine. Here are some key specifications and features:
Engine Type: 6-cylinder, 4-stroke, direct-injected, turbo-charged marine diesel engine with aftercooler1.
Power Output: 147 kW (200 hp)1.
Cooling System: Freshwater cooled exhaust manifold and oil cooler1.
Alternator: 14 V/50 A1.
Other Features: Flexible front engine mounting, wet type exhaust elbow, lubrication oil filter, and turbo-charger
great range of new and used marine accessories. We are also main dealers for outboard engines . Outboard Services and Marine Ltd are based on the south coast of Cornwall. We have a great range of new and used marine accessories. We are also main dealers for outboard engines,
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item
value
Condition
New
Engine
4 Stroke
Fuel Type
Gasoline
Cylinders
6
Engine Position
OUTBOARD
Dimensions (L x W x H) (mm)
1266 x 729 x 1179
Brand Name
Outboard Engine Boat Motor
Model Number
Outboard Engine Boat Motor
Engine type
4 Stoke
Product Name
Outboard 4 Stroke
Displacement
52cc
Starting system
Manual
Warranty
1 Year
Type
4 Stroke Model
Control System
Tiller Control
Color
Black
Application
Marine SHIP
Engine Model
CM6D28C
engines,
OUTBOARD BOAT ENGINE WHOLESALE,
We got OUTBOARD MOTOR ENGINES for sale at VERY VERY CHEAP affordable prices. Varieties of them.
WE ARE SUPPLIERS OF HIGH QUALITY OUTBOARD ENGINES BOTH USED AND NEW.
EXTREME OFFSHORE PERFORMANCE AND DURABILITYâ??NOT TO MENTION STRIKING GOOD LOOKS.
OUTBOARD 4 STROKE
Mileage one to two hours used
Fuel Gasoline and Diesel
Gears Manual and Authomatic
Engine 4,6 and 8
