Qingdao Henger Shipping Supply Co., Ltd
15 + years of rich production experience and project solving experience manufacturer ！
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Lies in Qingdao, a beautiful coastal city with red tiling and green trees, blue sea and clear sky, Qingdao Henger Shipping Supplies Co., Ltd is a high-tech enterprise integrated with manufacturing, research and innovation, technical services, specialized in manufacturing marine products, such as marine rubber fender, marine airbag, navigation mark and marine buoy. All products get ISO 9001-2008 certificate and IACS quality authentication from CCS, BV, GL, ABS, LG, etc.
♦ Company mainly produces and sells pneumatic rubber fenders, EVA polyurethane fenders and marine airbags, and the products are unique formula and advanced production technology.
♦ Company products has passed ISO9001:2000, CCS, DNV, LR ,etc.
♦ Company products are exported to USA, France, Italy, UK, Singapore, Indonesia, Korea and other countries and regions
♦ Quality is guaranteed, service first.
ISO14409 Approved Dock Yard Slipway Shipyard Inflatable Marine Airbag
Ship launching airbags are known as roller bags, launching air balloons, inflatable marine airbags, air lift bags, and salvage bags. Ship launching airbags are specialized marine rubber air bags that are used for launching marine vessels. ship landing or haul-outs. Marine rubber airbags are also widely used in loading, floating, lifting and moving sunken ships, and salvaging stranded boats. Rubber airbags are made of heavy-duty synthetic-tire-cord layers with inner and out rubber layers in a long cylindrical balloon shape.
Marine Rubber Airbag also known as rubber airbag, ship air bags, ship launching airbag, ship salvage airbag, boat salvage airbags, inflatable airbag, ship lifting bag, air balloon, made by rubber & multi layer of rubber-dipped tyre fabric.
Marine Rubber Airbag are widely used in launching and landing ship/ boat/vessel, lifting and moving heavy goods, salvaging stranded boats.
Marine Rubber Airbag are very popular with shipyard, ship owner, and marine supplies company now.
Marine Rubber Airbag has longer service life.
This flexible ship launching technology is accepted by more shipyards worldwide because of its advantages of saving time, saving investment, flexibility, safety. We are constantly innovating in terms of design, material usage, & manufacturing technologies throughout the years to ensure flexibility, safety, and reliability.
Up to now, more cargo vessels, barges, chemical tankers, tugboats, AHTS vessels, floating docks, and even construction caissons have all been launched using our ship launching rubber airbags. The biggest vessel launched by ship launching airbags up to 100,000DWT.
Whole Intertwine Technology
"HENGER" Airbags overall frame structure uses cross whole intertwine technology, the overall structure is more reasonable, texture clear, no juncture, high loads, more safety than lap technology (roller), more than 20% bearing capacity.
“HENGER” airbag structure are consist of the outer rubber + synthetic cord reinforced rubber layers.Its shape characteristics: central body cylindrical + tapered on both ends. Cord layers: 4,5,6,7,8,9,10,11,12 layers.
The role of Marine rubber airbags
a. Marine upstream and downstream
b. Weight lifting & moving
Marine rubber fend could be applied to caisson lifting, launching, moving and transporting in port constructing projects.
c. Buoyancy Aid & Salvage
Because marine rubber airbag has buoyancy force and load-bearing capacity, it is also widely used in sunken vessel salvage and Buoyancy Aid.
4.Technical Requirement
According to CB/T 3795--1996, marine rubber fender should meet the following requirements.
1. Dimensional Deviation
Diameter & Effective Length Deviation: ±2%
Total Length Deviation: ±4%
2. Amount of Elastic Deformation: diameter deformation amount ≤ 5% under 1.2 times working pressure.
3. Safety Factor: >4.5
4. Air Tightness: depressurization < 5% after 1hour inflation
5. Surface Quality: fairing line shape, no crack, no bubble, no double skin, no impurities, no distinct dirt and other apparent defect.
6. end part anti-explosion design
5.Product Advantage
a. High bearing capacity
Inflatable rubber airbag’s main technical requirement is regulated in CB/T 3795--1996 published by China State Shipbuilding Corporation.
Henger adopts new rubber formula and high-strength enhanced synthetic-tyre-cord layer, which improves the airbag’s bearing capacity two times more than CB/T 3795--1996 standard
b. High kneading-resistance capability
When the airbag is rolling under the ship bottom, it will suffer a “kneading force” from ship bottom and ground because of not uniform rolling speed, which could case problems like delamination, layer buckling, etc.
Henger improved the manufacturing technique and raw material formula to strengthen kneading-resistance capability of the airbag and avoid worse accident .
c. New anti-explosion design of end part
The possibility of air leakage in the joint area of metal part and rubber part is also increasing as working pressure of airbag is added. After using for times under high working pressure, the airbag would burst and metal part would hurt workers.
Henger invented new anti-explosion design of the airbag end part, increasing the bonding strength and air tightness between rubber body part and end metal part. Henger airbag is working very well under higher working pressure without potential safety hazard.
d. Optimizing structure configuration
Henger built a strength and Intensity Model to test compression performance, stress intensity and direction. After testing for many times, we got the stress changeing regularity and optimized structure configuration design. The new optimized airbag successfully passed blasting experiment and achieved good performance in practical use.
e. Good Abrasion-resistance performance and high ageing resistance
The airbag is working under bad and poor condition, suffering from long time sunlight exposure, seawater corrosion, impurities pollution, etc. The surface of airbag must be equipped with high capability of abrasion resistance, ageing resistance, corrosion resistance.
Henger airbag is made of natural rubber with special ingredients and unique manufacturing method. The finished airbag could working very well under above mentioned bad and poor working condition.
f. Higher flexibility and shock absorption capability
Henger airbag is manufactured with unique integral twining technique. The airbag wall thickness is uniform with secondary seam in overlap joint. When rolling in slope and uneven ship path, the flexible airbag is helpful to reduce structure stress and ship launching risk.
Synthetic-tire-cord layer
Synthetic-tire-cord layer is reinforcement layer of the ship launching 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. We use the 1870 dtex/2 type synthetic-tire-cord fabric. The warp is over 95 cords per 100 mm in width. The breaking strength is more than 310 N per cords.
Launching Airbags Structure
6.Technical Parameter
| Series | Model | D(m) | Working Pressure(Mpa) | Working H(m) | Unit Bearing Capacity(ton/m) | ||||
| 0.4D | 0.5D | 0.6D | 0.4D | 0.5D | 0.6D | ||||
| S1 |
S10 | 0.8 | 0.20 | 0.32 | 0.40 | 0.48 | 15.1 | 12.6 | 10.0 |
| 1 | 0.16 | 0.40 | 0.50 | 0.60 | 15.1 | 12.6 | 10.0 | ||
| 1.2 | 0.14 | 0.48 | 0.60 | 0.72 | 15.8 | 13.2 | 10.6 | ||
| 1.5 | 0.11 | 0.60 | 0.75 | 0.90 | 15.5 | 13.0 | 10.4 | ||
|
S11 | 0.8 | 0.19 | 0.32 | 0.40 | 0.48 | 14.3 | 11.9 | 9.5 | |
| 1 | 0.15 | 0.40 | 0.50 | 0.60 | 14.1 | 11.8 | 9.4 | ||
| 1.2 | 0.13 | 0.48 | 0.60 | 0.72 | 14.7 | 12.2 | 9.8 | ||
| 1.5 | 0.10 | 0.60 | 0.75 | 0.90 | 14.1 | 11.8 | 9.4 | ||
|
S12 | 0.8 | 0.24 | 0.32 | 0.40 | 0.48 | 18.1 | 15.1 | 12.1 | |
| 1 | 0.19 | 0.40 | 0.50 | 0.60 | 17.9 | 14.9 | 11.9 | ||
| 1.2 | 0.16 | 0.48 | 0.60 | 0.72 | 18.1 | 15.1 | 12.1 | ||
| 1.5 | 0.13 | 0.60 | 0.75 | 0.90 | 18.4 | 15.3 | 12.2 | ||
| 1.8 | 0.10 | 0.72 | 0.90 | 1.08 | 17.0 | 14.1 | 11.3 | ||
| S2 |
S20 | 1 | 0.24 | 0.40 | 0.50 | 0.60 | 22.6 | 18.8 | 15.1 |
| 1.2 | 0.20 | 0.48 | 0.60 | 0.72 | 22.6 | 18.8 | 15.1 | ||
| 1.5 | 0.16 | 0.60 | 0.75 | 0.90 | 22.6 | 18.8 | 15.1 | ||
| 1.8 | 0.13 | 0.72 | 0.90 | 1.08 | 22.0 | 18.4 | 14.7 | ||
| 2 | 0.12 | 0.80 | 1.00 | 1.20 | 22.6 | 18.8 | 15.1 | ||
|
S21 | 1 | 0.27 | 0.40 | 0.50 | 0.60 | 25.4 | 21.2 | 17.0 | |
| 1.2 | 0.23 | 0.48 | 0.60 | 0.72 | 26.0 | 21.7 | 17.3 | ||
| 1.5 | 0.18 | 0.60 | 0.75 | 0.90 | 25.4 | 21.2 | 17.0 | ||
| 1.8 | 0.15 | 0.72 | 0.90 | 1.08 | 25.4 | 21.2 | 17.0 | ||
| 2 | 0.14 | 0.80 | 1.00 | 1.20 | 26.4 | 22.0 | 17.6 | ||
|
S22 | 1 | 0.31 | 0.40 | 0.50 | 0.60 | 29.2 | 24.3 | 19.5 | |
| 1.2 | 0.26 | 0.48 | 0.60 | 0.72 | 29.4 | 24..5 | 19.6 | ||
| 1.5 | 0.20 | 0.60 | 0.75 | 0.90 | 28.3 | 23.6 | 18.8 | ||
| 1.8 | 0.17 | 0.72 | 0.90 | 1.08 | 28.8 | 24.0 | 19.2 | ||
| 2 | 0.15 | 0.80 | 1.00 | 1.20 | 28.3 | 23.6 | 18.8 | ||
| 2.5 | 0.12 | 1.00 | 1.25 | 1.50 | 28.3 | 23.6 | 18.8 | ||
| S3 |
S30 | 1 | 0.35 | 0.40 | 0.50 | 0.60 | 33.0 | 27.5 | 22.0 |
| 1.2 | 0.29 | 0.48 | 0.60 | 0.72 | 32.8 | 27.3 | 21.9 | ||
| 1.5 | 0.23 | 0.60 | 0.75 | 0.90 | 32.5 | 27.1 | 21.7 | ||
| 1.8 | 0.19 | 0.72 | 0.90 | 1.08 | 32.2 | 26.8 | 21.5 | ||
| 2 | 0.17 | 0.80 | 1.00 | 1.20 | 32.0 | 26.7 | 21.4 | ||
| 2.5 | 0.14 | 1.00 | 1.25 | 1.50 | 33.0 | 27.5 | 22.0 | ||
7.FAQ
Q: What’s the material of your marine rubber airbag products ?
A: the main raw materials are natural rubber, synthetic-tyre-cord fabric and customized hardwares, etc.
Q: Are you factory or trading company ?
A: We are manufacturing factory, located in Jimo district,Qingdao city, 1 hour drive to Qingdao port and 40 minutes drive to Qingdao airport, which is convenient in transportation logistics.
Q: Is OEM service available ?
A: yes
Q: What’s the delivery time and payment terms ?
A: Delivery time is based on product model and order quantity. normally it is around 7-15 working days.
The payment could paid by T/T, L/C, Western Union, Paypal, etc.
Q: what is your company address and contact information ?
A: Qingdao Henger Shipping Supplies Co., Ltd
Address: Jinkou Industry Park, Jimo District, Qingdao City, Shandong Province, China