CMR-P-1000x1500 Marine Air Bag
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CMR-P-1000x1500 Marine Air Bag

Pneumatic Fenders take the inside compressed air as cushion media to absorb impact energy; Smaller fenders can be supplied as Hook type. Larger fenders are commonly fitted with a chain-type net for added protection.
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Product Overview


The CMR-P Pneumatic Air Bag Fender (Yokohama Type) is a premium marine collision protection solution, leveraging compressed air as a cushioning medium to absorb impact energy efficiently. As a leading marine air bag and ship fender, it is engineered to accommodate vessels of all sizes—from small boats to large ships—with two design options: hook-type for smaller units and chain-netted for larger fenders (adding extra protection). Ideal for ship-to-ship operations, temporary berthing, and ports with extreme tidal variations, this Yokohama Fender delivers ultra-low reaction force and hull pressure, safeguarding both vessels and marine infrastructure. Its lightweight yet durable construction ensures easy handling and long-term reliability in harsh marine conditions.


Technical Specifications of CMR-P Pneumatic Air Bag Fender (Yokohama Type)


Specification (ø×L, mm)

Compression 60% Reaction Force (kN)

Compression 60% Energy Absorption (kNm)

Safety Valve Setting (Kpa)

Test Pressure (Kpa)

Fender Buffer Weight (Kg)

Net Weight - Chain (Kg)

Net Weight - Wire (Kg)

Net Weight - Synthetic Fiber (Kg)

Sling Type Weight (Kg)

300x500

14

1

-

-

8

-

-

-

-

400x800

30

3

-

1

20

-

-

-

-

500x1000

54

5

1

145

25

1

30

20

32

600x1000

65

7

-

145

28

-

30

22

36

700x1500

115

14

1

145

64

150

40

37

55

1000x1500

156

28

-

145

125

190

80

51

105

1000x2000

217

38

-

145

175

230

140

68

120

1200x2000

253

54

1

145

208

300

190

-

140

1200x2400

303

64

-

145

248

320

198

-

-

1350x2500

410

104

1

145

270

330

200

-

210

1500x3000

486

128

1

145

225

490

350

-

265

1700x3000

542

163

-

145

365

580

440

-

290

2000x3500

743

263

1

145

585

980

640

-

450

2200x4500

1078

417

-

145

1080

1090

820

-

-

2500x4000

1049

464

175.0

195

1560

1260

910

-

1080

3300x6500

2981

1795

175.0

240

2585

2680

1910

-

-

4500x9000

5688

4688

175.0

240

4575

4810

3520

-

-



Pneumatic-Fender-2


Installation & Maintenance Guide


Installation Steps

Inspect the fender: Before installation, check for air leaks, damage to the air bag or net (if applicable), and ensure the safety valve is functional.

Inflate to test pressure: Inflate the fender to the specified test pressure (per technical specs) and hold for 30 minutes to confirm no leaks.

Attach mounting accessories: For hook-type fenders, secure hooks to the vessel or dock; for chain-netted models, fasten the chain net to the fender and mounting points.

Position the fender: Place the fender in the desired berthing area, ensuring it is aligned with the vessel’s contact zone and free of obstacles.

Verify stability: Confirm the fender is securely attached and maintains pressure before allowing vessel berthing.


Maintenance Tips

Conduct weekly pressure checks to maintain the recommended safety valve setting, adjusting as needed to prevent over-inflation or under-inflation.

Inspect the air bag surface and chain/net for wear, tears, or corrosion; replace damaged parts immediately to avoid failure.

Clean the fender with mild detergent and fresh water to remove salt, oil, or marine growth, preserving the rubber material.

Store unused fenders in a cool, dry area away from direct sunlight to prevent material aging.


Certifications & Quality Assurance


Our CMR-P Pneumatic Air Bag Fender undergoes rigorous quality control throughout the manufacturing process. The rubber material is tested for durability, UV resistance, and air tightness, while the chain/net components meet marine-grade strength standards. Each fender is inspected for leaks, pressure resistance, and structural integrity before delivery, ensuring compliance with international marine safety regulations. We stand behind our product with a comprehensive quality guarantee, supporting reliable performance in critical marine operations.


FAQ


How does the pneumatic air bag fender absorb impact energy?

It uses compressed air as a cushion: when a vessel collides with the fender, the air compresses to absorb energy, then rebounds to its original shape—minimizing reaction force and damage.

Can large fenders be customized for specific vessel sizes?

Yes, we offer customization for diameter, length, and net material (chain, wire, or synthetic fiber) to match the requirements of large ships, offshore platforms, or special marine projects.

What is the recommended frequency for pressure checks?

For regular use, we recommend weekly pressure checks. In high-traffic or harsh environments (e.g., rough seas, extreme temperatures), increase checks to twice weekly.

What is the difference between hook-type and chain-netted fenders?

Hook-type fenders are lightweight and easy to attach, suitable for small vessels; chain-netted fenders add a protective layer to the air bag, making them ideal for large ships or high-impact scenarios where extra durability is needed.


More Details about Pneumatic Fender

Pneumatic Fender.pdf


Key Features of CMR-P Pneumatic Air Bag Fender (Yokohama Type)


Ultra-Low Reaction & Hull Pressure

The fender’s air-cushion design minimizes reaction force during collisions, reducing stress on vessel hulls and dock structures. This feature is critical for fragile or high-value vessels, preventing dents and scratches.


Dual Design Options for Versatility

Smaller fenders come with a hook-type design for easy attachment, while larger models feature a chain-type net (available in chain, wire, or synthetic fiber) to enhance structural protection and extend service life.


High Energy Absorption Capacity

With compressed air as the core buffer, the fender absorbs significant impact energy—ranging from 1 kNm to 4688 kNm (per technical specs)—making it suitable for high-impact scenarios like ship-to-ship transfers or rough sea berthing.


Tidal Range Adaptability

The fender’s flexible structure adapts to extreme tidal variations, maintaining consistent protection regardless of water level changes. This makes it a top choice for ports and coastal areas with fluctuating tides.


Easy Handling & Installation

Lightweight compared to traditional rubber fenders, the pneumatic air bag fender is easy to transport and install. It requires no complex mounting structures, reducing on-site labor and time costs.



Applications of CMR-P Pneumatic Air Bag Fender (Yokohama Type)


Ship-to-Ship Operations

Essential for offshore oil transfers, cargo loading, and vessel refueling, the fender provides a stable buffer between two ships, preventing collisions during dynamic operations.


Coast Guard & Support Vessels

Coast guard ships, patrol boats, and support vessels rely on the fender’s low reaction force to protect their hulls during rescue missions, patrols, and docking in remote areas.


Oil & Gas Marine Facilities

Offshore oil rigs, gas platforms, and related vessels use the fender to shield critical infrastructure from collisions, ensuring safe and uninterrupted operations in high-risk environments.


Temporary Berthing Areas

Construction sites, emergency docking, or temporary ports benefit from the fender’s quick installation and removal, providing flexible protection without permanent modifications.


Ports with Extreme Tidal Variations

Ports and harbors with large tidal ranges (e.g., coastal regions with semi-diurnal tides) use the fender’s adaptive design to maintain reliable protection at all water levels.


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China Marine Rubber (Qingdao) Industrial Co.,Ltd (CMR) is a professional manufacturer of marine rubber fenders and engineering rubber products in China.

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