| Standard: | Lloyd′s, CCS, ABS, Lr, BV, Dnv |
|---|---|
| Application: | Salvaging, Ship Launching And Ashoring, Cargo Carrying |
| Customized: | Customized |
| Condition: | New |
| Material: | Rubber with Synthetic Tire Cord |
| Color: | Black |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 1.5X20m 9layer Ship launching airbag
1.Usage of Marine Airbags
Ship Launching Marine Airbags, also known as roller bags or ship launching rubber balloon, are made of heavy-duty synthetic-tire-cord layers with inner and out rubber layers in long cylindrical balloon shape. Marine Airbags for Ship Launching and Dry Docking for barge can be used for n Brazil, Indonesia Shipyard especially for barges launching, pull to shore, vessels' haul out and ship landing work.
2.Comparison with other Launch Way
Rollers Bag is a innovative ship launching technology, comparing with "end-on launching", "side ship launching", "float-out". This ship launching technology overcomes the restrictions of fixed launching track of side-launch. Ship launching airbags are accepted by more and more shipyards world wide due to its advantages of saving time, saving investment, flexible, safety. The biggest vessel launched by ship launching airbags up to 100,000 DWT.
3.Material and constructure of Marine Airbag
Inflatable Marine Airbags are to be constructed of an out rubber layer, multilayer heavy-duty synthetic-tire-cord layers, and an inner rubber layer vulcanized firmly. Ship launching marine airbags are cylindrical balloon body, with two conical head and end mouth. Air tightness swivel and air inlet kits are screwed with end mouth. Refer below picture.
1. End cap/plug at the tightness end ( Q235 H.D.G or Stainless Steel )
2. Rubber Pad at two ends( to strength the tightness)
3. End protective clip at two ends ( Q235 H.D.G or stainless steel )
4. Marine Airbags Body
5. Safety Air inflate at one end and Air Tightness Swivel at the other end ( Q235 H.D.G or stainless steel)
6. Three-direct-link at the inflate end( Q235 H.D.G. Or stainless Steel)
7. 3/4' ball valve (brass)
8. Hose connection at the inflate end (Q235 H.D.G or stainless steel)
9. High quality Pressure Gauge at the inflate end.
4.Classification of Roller Marine Air Bags
Ship launching marine airbags are categorized by "ordinary airbags", "high-bearing capacity airbags", and "Super-high-bearing capacity airbags" according to the bearing capacity.
5.Specification&Capacity of regular size-6layers:
| Diameter | Safty Working Pressure | Working Height | Capacity | ||
| KN/m | Ton/m | ||||
| Layer-6 | D0.8m | 0.24MPa | 0.5m | 122.4 | 12.9 |
| D1.0m | 0.22Mpa | 0.6m | 131.95 | 13.46 | |
| D1.2m | 0.18MPa | 0.7m | 141.37 | 14.43 | |
| D1.5m | 0.14MPa | 0.9m | 131.95 | 13.46 | |
| D1.8m | 0.12MPa | 1.1m | 131.95 | 13.46 | |
| D2.0m | 0.10MPa | 1.1m | 155.51 | 15.87 | |
| D2.5m | 0.10MPa | 1.3m | 162.34 | 16.41 | |
Prior to delivery of the ship launching marine airbags, we test every air bag .All Evergreen Maritime ship launching marine airbags are manufactured and tested comply with ISO 14409 "Ships and marine technology - ship launching air bags certificated by CCS, LR, DNV.
-Precaution of airbags usage
A.Strictly control the inner pressure of airbags not exceed the safety working pressure.
B. The contacted surface of carried load with airbags sould not have protrudend sharp subjects which may pierce airbags.
C.Avoid the lengthways twist of airbags during the using.
D.If the airbags are not used for long time or repaired the should be tested by the inflation experiment before used again. The test inner pressure should be the same of working inner pressure. Generally the largely repaired airbags should low down the working pressure in use.
- Maintenance guide of airbag repairing
When there is air leakage, identified the crack propagation by visual inspection on the air bag to check on the rubber characteristic by determine the surface whether seriously aging(fatigue fracture and sticky surface)
There are two ways of patching, which are hot and normal temperature vulcanization. Now we introduce the hot vulcanization as below,
A. Clean up thoroughly inner and outer airbags to ensure totally clean specially on the outer wall surface. Do not immersed into the water more than 10 minutes before patching.
B. Marking/indentified the air leakage area by extending wound part outward 15mm.
C.Structure layerial segregate by 2-6 layers depends on the size of flake leakage area.
Eg. Leakage area approx. 110mm or propagating fracture 50-70mm will be patched with 4-6 layers and it's better equipped"+" cushion of nylon.
D. File the flake leakage area by sand paper in single way direction for several times to ensure clean & smooth surface surrounding the fracture area. Remember to clean it again with compressed air.
E. The whole process should ensure there is no unwanted particular embedded and dry up the air bag surface. The brush up some owned made 502 glue with the ingredient of glue mixture of pure rubber material: petroleum base chemical of 1:8.
F.Patching precess- use prepared mentioned layer to patch.
G. Vulcanizing press process-using the rack structure indicated below to carried our vulcanizing precess by heating up to 135+-5C; Press the flake leakage area with 0.08-0.12Mpa pressure for 40-50 minutes.
G.inspection-check the patching area to ensure the tight agglutination. the inflated the air bag for final checking.
FAQ
Q1:What's the material of your products?
A:Our raw material is natural rubber, and rubber-dipped nylon cord fabric
Q2:Are you factory or trading company?
A:We are the company and factory,located in Jimo City,Qingdao,near to Qingdao port and Qingdao airport,which is convenient for transportation.
Q3:Can you do OEM?
A:Yes,we can do.As long as receive your request,we could produce accordingly.
Q4:What's your delivery time and payment terms?
A:Delivery time is according to customers' size and order qty.The payment terms you could choose are T/T,L/C at sight,Western Union and so on.
Q5:How can I get samples from you?
A:We are honored to provide you samples for check quality.Customers just confirm freight collect and then we could send out the sample by FedEx,DHL,UPS,TNT and so on.
Q6:What's certificates can your company provide?
A:We can provide CCS,ABS,DNV,LR,BV certificates.
Q7:What about your warranty time?
A:Our warranty period is 18 months.During this time,any problems about products from our factory,we solemn promise to change and repair them for free;if problems from customers' improper operating,we could provide free guidance and repair materials.
For more information,please contact me directly:
Ada zheng
Suppliers with verified business licenses
Audited Supplier 
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