Heavy Lifting Marine Airbag D1.5mxel18m
 heavy lifting marine airbag D1.5mxEL18m
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. Synthetic-tire-cord layer -Â Reinforcement layer of the ship launching marine airbags which are made of rubber coated synthetic-tire-cord fabrics. Many synthetic-tire cord layers are twined at ideal angles by unique and patented "Holistic Wrapping Technology". To hold the internal pressure and to distribute the stress evenly. Buoder use the 1870 dtex/2 type synthetic-tire-cord fabric. The warp is over 95 cords per 100 mm in width, and the breaking strength is more than 310N per cord.
2. The outer rubber layer covers the outside of ship launching marine airbags. To protects the cord layers from abrasion and other external forces. This compound has sufficient tensile and tear strength to withstand any weather condition and hard usage.
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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.
- QP Ordinary airbags -Â the air bag with 3, 4Â or 5Â layers of cord fabricÂ
- QG High-bearing capacity airbags -Â the air bag with 6, 7Â or 8Â layers of cord fabric
- QS Super-high-bearing capacity airbags -Â the air bag with 9, 10 or more layers of cord
The standard diameter of ship launching marine airbags (D) varies such as 0.8m, 1.0m, 1.2m, 1.5m, 1.8m and 2.0m, 2.5 meters etc. The standard effective length of air bag (EL or L) is from 6m to 26m, which should be specified by the user. Other specification ship launching airbags also can be supplied upon request.
| Model | Diameter (m) |
Initial pressure (KPa) |
Rated working pressure, Pe (KPa) |
Bearing capacity (kN/m) | Minimum burst pressure (KPa) |
| QP3 | 0.8 | 25 | 130 | 114 | 390 |
| 1.0 | 18 | 100 | 110 | 300 | |
| 1.2 | 15 | 85 | 112 | 260 | |
| 1.5 | 13 | 70 | 115 | 210 | |
| QP4 | 0.8 | 35 | 170 | 149 | 510 |
| 1.0 | 25 | 130 | 143 | 390 | |
| 1.2 | 20 | 110 | 145 | 330 | |
| 1.5 | 16 | 90 | 148 | 270 | |
| 1.8 | 14 | 80 | 158 | 240 | |
| QP5 | 0.8 | 48 | 210 | 184 | 630 |
| 1.0 | 35 | 170 | 186 | 510 | |
| 1.2 | 28 | 140 | 185 | 420 | |
| 1.5 | 20 | 110 | 181 | 330 | |
| 1.8 | 16 | 90 | 178 | 270 | |
| QP6 | 1.0 | 45 | 200 | 219 | 600 |
| 1.2 | 32 | 165 | 217 | 490 | |
| 1.5 | 25 | 130 | 215 | 390 | |
| 1.8 | 20 | 110 | 218 | 330 | |
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Note: 1. Rated working pressure:±5%. 2. Compress deformation: ±2%. 3. Internal pressure is the reference value.  | |||||
5.Testing and Quality:
Evergreen Management System is certified ISO 9001-2000 and follows each order during manufacturing procedures. Evergreen guarantees high standards and performances of all products. All material of Evergreen inflatable rubber airbags, are selected in accordance with CB/T 3795.
We are very focused on the quality and invest advanced inspection equipment. 100%Â inflatable rubber airbags, hould be tested and inspected as per the requirement of CB/T 3795. Non conformed products are immediately rejected by Quality Control. The widely usage have been tested under rough condition. Our many satisfied customers are out best reference.
Evergreen welcomes inspection by its customer's quality assurance departments and to their appointed agencies as CCS, Lloyd's, DNV, or ABS.
To understand the whole Heavy Lifting /Â Caisson Launching process, please refer to our website http://www.evergreenmaritime.com/
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.Â
6.Evergreen Marine Airbags Show
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7.Large factory work shop and good environment
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.
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