Specifications
Brand Name :
DOOWIN MARINE
Model Number :
QP4,QP5,QG6,GQ7,QG8, QS 9,QS10,QS11,QS12
Certification :
CCS,ABS,LR,BV
Place of Origin :
China
MOQ :
1pc
Price :
USD$699~8959
Payment Terms :
T/T
Supply Ability :
10pcs/per week
Delivery Time :
2~3 weeks
Packaging Details :
Pallet or Plywooden Box
Product name :
Ship Launching Air Balloon
Material :
Synthetic tire cords
Application :
salvage,heavy lifting,Ship launching,Marine/quay/dock/boat,Ship Launching/landing/lifting
Part :
Ship Launch Rollers
Color :
Black
Size :
Customized Size,Customer's Ruquirement,2m x 24m or as per customer's request,accoring to requirements,1.5m x 15m
Diameter :
0.8 ~ 3m
Usage :
Ship launching,landing and slvage,Protect Boat,moving/lifting/landing /launching,Boat Fender
Standard :
CB/T-3837,ISO14409,CB/T-3795,ISO Standard,ISO 14409
Packing :
Standard packaging, pallet or as per customer's requirements
Warranty period :
2 Years
Technology :
High Pressure,Whole Wrapping,anti-explosion type. Whole-wrapping technology,Whole Intertwine technology,Explorsion Proof
Length :
5 ~ 30m
Design using life :
6-10 years
Description
Ship Launching Air Balloon Marine Airbags Ship Launch Rollers For Sale
Heavy lifting air bags, known as marine rubber airbags or ship launching balloons, are made of heavy-duty synthetic-tire-cord layers with inner and outer rubber layers in a long cylindrical balloon shape.
The heavy lifting airbag is updated based on the ship launching airbags, making them more suitable for heavy lifting and moving work. These airbags have a different structure from ship launching airbags and can roll steadily when taking the load, unlike inferior products which are prone to twisting.
As one of the toughest pneumatic lifting airbags available, they can be used for heavy lifting and moving of huge structures, caissons, buildings, and more. Each heavy lifting airbag can reach a lifting capacity of over 1,000 tons.
Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size
Why Choose Marine Heavy Lifting Air Bags
Superior manufacturing and quality control processes from raw material selection through the highly skilled production process ensure reliable performance.
Black Ship Launching Air Balloon Marine Airbags Customized Size
Heavy Lifting Airbags Performance
Lifting Capacity Principle
The bearing capacity of ship launching airbags is calculated based on working pressure and contact area, with working pressure determined by burst pressure and safety working factor.
Due to the flexibility of rubber airbags, contact area is affected by various factors including carried ship condition and position relative to gravity center during launching and landing, causing bearing capacity to vary.
F=PS
S=π x (D-H)/2
Where:
F = bearing capacity
P = working pressure
S = contact area
P = percentage of deformation (%)
D = original diameter of the air bag (m)
H = height of the compressed air bag (m)
Black Ship Launching Air Balloon Marine Airbags Customized Size
Performance Parameters of Heavy Lifting Airbags
Type No. Diameter (m) Initial Internal Pressure for Test (kPa) Rated Working Pressure (kPa) Bearing Capacity at 70% compress deformation (KN/m) Minimum Burst Pressure (kPa)
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
2.0 14 80 176 240
Heavy Lifting Air Bags Classification
Our engineering team constantly improves the Structure of Typical Air Bags
Black Ship Launching Air Balloon Marine Airbags Customized Size
Standard Heavy Lifting Airbag Components
  • The end of the airbag body
  • End flange (Q235 H.D.G)
  • Sealing Washer
  • Three-direction connector at the inflate end (Q235 H.D.G)
  • 3/4′ Ball Valves at the inflate end (Brass)
  • Hose connection at the inflate end (Q235)
  • High-quality Pressure Gauge
  • End plug at the tightness end (Q235 H.D.G)
Classification of Heavy Lifting Airbags
Heavy lifting airbags are categorized by bearing capacity per meter in length, with layer count determining Safety Working Pressure. Custom types are available upon request.
  • QP - Ordinary airbag with 3, 4 or 5 layers of cord fabric
  • QG - High-bearing capacity with 6, 7, or 8 layers of cord fabric
  • QS - Superhigh-bearing capacity with 9, 10, or more layers of cord fabrics
Example: QG6/1.5*15
QG6: 6 layers cord fabric
1.5: diameter is 1.5m
15: length is 15m
Air Bag Parameter Ship Launching Air Balloon Marine Airbags
Product Name Ship Launching Balloon
Diameter (D) 0.8 ~ 3m, or customized diameter
Effective Length (EL) 5~ 30m, or customized length
Total Length (TL) 7 ~ 32m, or customized length
Loading Capacity 10 ~ 40 ton/m, or customized capacity
Model of Airbags QP-ordinary, QG-high-bearing, QS-superhigh bearing
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Black Ship Launching Air Balloon Marine Airbags Customized Size

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Brand Name :
DOOWIN MARINE
Model Number :
QP4,QP5,QG6,GQ7,QG8, QS 9,QS10,QS11,QS12
Certification :
CCS,ABS,LR,BV
Place of Origin :
China
MOQ :
1pc
Price :
USD$699~8959
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Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size
Black Ship Launching Air Balloon Marine Airbags Customized Size

QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.

Verified Supplier
1 Years
qingdao
Since 2011
Business Type :
Manufacturer
Total Annual :
3000000-5000000
Employee Number :
60~80
Certification Level :
Verified Supplier
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