Hongruntong Marine LLC.
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 2660 Pcs Per Month |
| Delivery Time | 5-7 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Feature | Durable Construction |
| Reinforcement | Tyre Cord Fabric |
| Tensile Strength | ≥18Mpa |
| Hardness | 60±10 Shore A |
| Diameter | 0.5M-3.0M, Or Customized |
| Material | Robust Natrual Rubber |
| Length | 3M-28M, or Customized |
| Layers | 5-13Ply, or Customized |
| Elongation | ≥400% |
| Name | Ship Launching Balloon |
| Working Pressure | 0.03-0.25Mpa |
| Metal Part | Q235, SS3044, SS316 |
| Accessory | Free of Charge |
| Standard | ISO14409:2011 |
| Color | Black |
| Application | Ship/Vessel/Boat Launching/Docking |
| Warranty | 36 Months |
| Brand Name | Hongruntong Marine |
| Model Number | HM-SLB7 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram | Supply Ability | 2660 Pcs Per Month |
| Delivery Time | 5-7 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Feature | Durable Construction | Reinforcement | Tyre Cord Fabric |
| Tensile Strength | ≥18Mpa | Hardness | 60±10 Shore A |
| Diameter | 0.5M-3.0M, Or Customized | Material | Robust Natrual Rubber |
| Length | 3M-28M, or Customized | Layers | 5-13Ply, or Customized |
| Elongation | ≥400% | Name | Ship Launching Balloon |
| Working Pressure | 0.03-0.25Mpa | Metal Part | Q235, SS3044, SS316 |
| Accessory | Free of Charge | Standard | ISO14409:2011 |
| Color | Black | Application | Ship/Vessel/Boat Launching/Docking |
| Warranty | 36 Months | Brand Name | Hongruntong Marine |
| Model Number | HM-SLB7 | Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China | ||
| High Light | 7m inflatable marine airbags ，puncture proof ship launching balloon ，versatile fast launch airbags | ||
7m Inflatable Marine Airbags Versatile Fast Launch Shock Absorption Puncture Proof
Description
The 7.5m Ship Launching Balloon is a high-precision, heavy-duty solution designed for medium-to-large vessel launches under complex maritime conditions. Manufactured from multi-layer reinforced rubber with embedded high-tensile synthetic fibers, the balloon combines superior strength, elasticity, and durability. It is engineered to provide uniform pressure distribution beneath the hull, minimizing stress points and preventing structural deformation during launches. The material exhibits excellent resistance to abrasion, puncture, UV radiation, saltwater corrosion, and extreme temperature variations, ensuring long-term performance in diverse marine environments. The 7.5m balloon is particularly suited for shipyards, dry docks, and offshore construction projects where limited crane availability, uneven dock surfaces, or logistical challenges exist. By streamlining the launch process, reducing labor dependency, and providing repeatable, safe vessel launches, it delivers measurable improvements in operational efficiency and safety standards for marine operations.
Case Study
In 2020, a shipyard in Malaysia required the launch of a 1,800-ton bulk carrier in a facility with uneven dock surfaces and restricted crane access. To overcome these challenges, the shipyard adopted a 7.5m Ship Launching Balloon system from Hongruntong Marine. The balloons were positioned strategically under the hull and inflated in stages to maintain consistent pressure distribution. The launch was completed successfully within 50 minutes, with zero hull damage or structural stress. Workers reported easier handling and reduced physical strain compared to traditional launch methods. The client noted significant savings in operational time and labor costs, as well as the balloon’s ability to handle uneven surfaces effectively, making it a repeatable solution for future vessel launches. This case illustrates the balloon’s adaptability, safety, and efficiency for complex shipyard environments.
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
Superior Load Bearing Capacity
The balloon is designed to support medium-to-large vessels safely, distributing weight evenly to prevent hull deformation and ensure stable launches.
Enhanced Material Durability
Constructed with reinforced multi-layer rubber and high-strength fibers, the balloon resists punctures, abrasion, and environmental wear, guaranteeing long-term reliability.
Flexible and Shock-Absorbing Design
Its elastic structure conforms to hull contours, absorbing impact during launches and reducing stress on both the vessel and dock surfaces.
Rapid Deployment and Operation
Lightweight and equipped with user-friendly valves, the balloon allows quick inflation, easy adjustment, and efficient operations, reducing preparation time.
Applications
Medium and Large Vessel Launching
Perfect for cargo ships, tankers, and passenger vessels requiring precise and safe launches in constrained or uneven shipyards.
Dry Dock and Maintenance Operations
Provides a stable and safe method for vessel relocation, maintenance, and hull inspection without permanent lifting infrastructure.
Offshore Platform and Marine Structure Deployment
Supports the launching of floating platforms, barges, and other offshore structures, even in challenging or remote locations.
Advantages
Proven Industry Expertise
Hongruntong Marine has decades of experience delivering reliable launching balloon solutions to shipyards worldwide, ensuring safety and efficiency.
Tailored Engineering Solutions
Each system is customized for specific vessel types, sizes, and operational requirements to achieve optimal performance.
Premium Materials and Manufacturing
High-strength rubber and reinforced fibers provide exceptional elasticity, load capacity, and environmental resistance for long-term use.
Comprehensive Technical Support
From installation guidance to on-site training and post-sales assistance, clients receive complete support to maximize operational efficiency and safety.
FAQ
1. What sizes are available for the 7.5m Ship Launching Balloon?
Sizes range from 4m to 12m in diameter, customizable according to vessel weight and hull dimensions.
2. How long does inflation take for this balloon?
Standard compressors typically inflate the balloon in 20–30 minutes, depending on weather and crew experience.
3. Can the balloon be used multiple times?
Yes, with proper cleaning, inspection, and storage, the balloon is designed for repeated use over several years.
4. Is it safe to operate on uneven or sloped docks?
Absolutely. The reinforced and flexible design ensures stable deployment on irregular surfaces without compromising safety.
5. What certifications verify its reliability and safety?
All balloons comply with ISO 14409 standards and undergo rigorous testing for pressure, elasticity, and durability in marine environments.
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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