Hongruntong Marine LLC.
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 2310 Pcs Per Month |
| Delivery Time | 5-8 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Feature | Buoyancy and Load-Bearing Capacity |
| Material | Impact-Resistant Natrual Rubber |
| Reinforcement | Tyre Cord Fabric |
| Tensile Strength | ≥18Mpa |
| Elongation | ≥400% |
| Hardness | 60±10 Shore A |
| Diameter | 0.5M-3.0M, Or Customized |
| Length | 3M-28M, Or Customized |
| Layers | 5-13Ply, Or Customized |
| Working Pressure | 0.03-0.25Mpa |
| Metal Part | Q235, SS3044, SS316 |
| Accessory | Free of Charge |
| Standard | ISO14409:2011 |
| Warranty | 3 Years |
| OEM | Warmly Welcomed |
| Application | Ship/Vessel/Boat Launching & Docking |
| Brand Name | Hongruntong Marine |
| Model Number | HM-SLB011 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram | Supply Ability | 2310 Pcs Per Month |
| Delivery Time | 5-8 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Feature | Buoyancy and Load-Bearing Capacity | Material | Impact-Resistant Natrual Rubber |
| Reinforcement | Tyre Cord Fabric | Tensile Strength | ≥18Mpa |
| Elongation | ≥400% | Hardness | 60±10 Shore A |
| Diameter | 0.5M-3.0M, Or Customized | Length | 3M-28M, Or Customized |
| Layers | 5-13Ply, Or Customized | Working Pressure | 0.03-0.25Mpa |
| Metal Part | Q235, SS3044, SS316 | Accessory | Free of Charge |
| Standard | ISO14409:2011 | Warranty | 3 Years |
| OEM | Warmly Welcomed | Application | Ship/Vessel/Boat Launching & Docking |
| Brand Name | Hongruntong Marine | Model Number | HM-SLB011 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS | Place of Origin | China |
| High Light | Sturdy Marine Airbags ，2.5m Marine Airbags ，Corrosion Proof Marine Airbags | ||
2.5m Marine Airbags Shock Absorbing Corrosion Proof Long Lifespan Sturdy
Description
Ship Launching Balloons are heavy-duty marine airbags designed for safe and efficient vessel launching and recovery. Made from high-strength rubber with reinforced layers, they offer exceptional load capacity (up to 500 tons) while remaining cost-effective compared to traditional methods. These airbags are UV-resistant, abrasion-proof, and easy to deploy, making them ideal for shipyards and marine operations. Their flexibility allows smooth, controlled launches, reducing risks of hull damage. Whether for small boats or large ships, these balloons ensure a stable, economical, and eco-friendly solution.
Specifications
| Product Name | Ship Launching Balloon |
| Material | 100% High Tensile Natural Rubber (NR) |
| Dimensions | Diameter 0.2m - 4.0m, Length 3.0m - 28.0m, or As Request |
| Working Pressure | 0.05-0.25MPA |
| Technology | Overall Winding, High Pressure, Explosion-proof |
| Metal Parts | Q355 / SS304 / SS316 |
| OEM | Supported |
| MOQ | 1 |
| Repair Tools | Electric Heating Plate, Repair Materials, Glue, Free of Charge |
| Standard | ISO 17357 |
| Certificate | ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS |
| Package | Pallets, Wooden Cases |
| Service Life | 20 Years |
| Warranty | 36 Months |
| Diameter | Working Pressure | Working Height | Bearing Capacity | |
| KN/m | Ton/m | |||
| D=1.0m | 0.14Mpa | 0.6m | 87.96 | 8.98 |
| 0.5m | 109.96 | 11.22 | ||
| 0.4m | 131.95 | 13.46 | ||
| D=1.2m | 0.12Mpa | 0.7m | 94.25 | 9.62 |
| 0.6m | 113.10 | 11.54 | ||
| 0.5m | 131.95 | 13.46 | ||
| 0.4m | 150.80 | 15.39 | ||
| D=1.5m | 0.10Mpa | 0.9m | 94.25 | 9.62 |
| 0.8m | 109.96 | 11.22 | ||
| 0.7m | 125.66 | 12.82 | ||
| 0.6m | 141.37 | 14.43 | ||
| 0.5m | 157.08 | 16.03 | ||
| D=1.8m | 0.09Mpa | 1.1m | 98.96 | 10.10 |
| 1.0m | 113.10 | 11.54 | ||
| 0.9m | 127.33 | 12.98 | ||
| 0.8m | 141.37 | 14.43 | ||
| 0.7m | 155.51 | 15.87 | ||
| 0.6m | 169.65 | 17.31 | ||
| D=2.0m | 0.08Mpa | 1.2m | 100.53 | 10.26 |
| 1.1m | 113.10 | 11.54 | ||
| 1.0m | 125.66 | 12.82 | ||
| 0.9m | 138.23 | 14.11 | ||
| 0.8m | 150.80 | 15.39 | ||
| 0.7m | 163.36 | 16.67 | ||
| 0.6m | 175.93 | 17.95 | ||
| * Other Size Can Be Provided Follow Client's Requirements. | ||||
Features
Multi Ply Composite Structure
3-6 layer reinforced rubber construction with high-tensile nylon cord (1670dtex/2) at 45° cross-ply orientation for optimal stress distribution
Advanced Material Composition
Butyl rubber/NR blend compound with 65±5 Shore A hardness, incorporating anti-aging additives (IPPD/6PPD) and UV stabilizers
Pressure Vessel Design
Cylindrical body with hemispherical ends, rated for working pressure of 0.3-0.8MPa (43-116psi) and burst pressure ≥3.5×WP
Load Bearing Capacity
Specific buoyancy of 0.8-1.2t/m³, with maximum single-unit capacity up to 800 metric tons at 6m diameter
Applications
● Shipyards
● Repair and maintenance facilities
● Offshore construction projects
● Floating docks
Advantages
FAQ
1. What are ship launching balloons?
Ship launching balloons (marine airbags) are heavy-duty inflatable rubber cylinders used to launch, dock, and transport vessels safely and cost-effectively.
2. What sizes are available?
Standard diameters range from 0.8m to 6m, with custom lengths up to 25m upon request.
3. What is the maximum load capacity?
A single airbag can support 50–800+ tons, depending on size and pressure. Multiple airbags can handle larger vessels.
4. What materials are used?
High-strength rubber (NR/SBR/IIR blends) with nylon/aramid reinforcement for durability.
Company Details
Business Type:
Manufacturer
Year Established:
1990
Total Annual:
5,256,780-5,593210
Employee Number:
220~360
Ecer Certification：
Verified Supplier
Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma... Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma...
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