Pneumatic Ribbed Fenders
Hongruntong Marine supplys pneumatic ribbed fenders (ribbed pneumatic, pneumatic rib models) – SBR/NR rubber, ABS/DNV certified for ports, offshore & marine mooring.

Hongruntong Marine focus on high-reliability marine protection solutions, specializing in pneumatic ribbed fenders and their variants, including ribbed pneumatic fenders, pneumatic rib fenders, and rib pneumatic fenders. These fenders combine two core advantages: the flexible impact absorption of pneumatic (inflatable) design, and the anti-slip, pressure-dispersing benefits of an outer ribbed structure.
As a professional marine fender manufacturer with extensive expertise in marine protection systems, Hongruntong Marine produces robust pneumatic fender ribbed systems and certified rib pneumatic fender solutions designed to withstand the most demanding marine conditions. Our comprehensive product line encompasses heavy-duty pneumatic ribbed fender designs featuring reinforced external ribs that significantly enhance structural integrity, specialized pneumatic rib fender technology that optimizes energy absorption through strategic rib placement, and high-capacity ribbed pneumatic fender products that deliver exceptional performance in both permanent docking installations and temporary marine operations. Each fender is manufactured using advanced rubber compounds and reinforced with high-tensile cord layers to ensure maximum durability and reliable protection for vessels of all sizes.

Key Features & Benefits
Enhanced Rib Design: Advanced pneumatic ribbed fender with reinforced external ribs for superior durability
Optimal Energy Absorption: Efficient ribbed pneumatic fender design that maximizes impact protection
Structural Reinforcement: Robust pneumatic fender ribbed construction with enhanced tear resistance
Versatile Applications: Reliable pneumatic rib fender suitable for various marine operations
Low Reaction Force: Innovative rib pneumatic fender technology that minimizes vessel stress
Easy Installation: All fenders designed for simple deployment and maintenance
Applications
Commercial and naval ship-to-ship (STS) operations
Quay, pier, and jetty berthing protection
Offshore platforms and floating docks
LNG terminals and high-energy docking facilities
Emergency and temporary mooring situations
Dimensions

Fender Size D × L [mm] |
Initial Internal Pressure 0.5 kg/ c㎡ | Initial Internal Pressure 0.8 kg/ c㎡ | ||||
| Guaranteed energy absorption (GEA) [kNm] |
Reaction force at GEA deflection [kN] |
Hull pressure at GEA deflection [kN/㎡] |
Guaranteed energy absorption (GEA) [kNm] |
Reaction force at GEA deflection [kN] |
Hull pressure at GEA deflection [kN/㎡] |
|
| 500 x 1,000 | 6 | 64 | 132 | 8 | 85 | 174 |
| 600 x 1,000 | 8 | 74 | 126 | 11 | 98 | 166 |
| 700 x 1,500 | 17 | 137 | 135 | 24 | 180 | 177 |
| 1,000 x 1,500 | 32 | 182 | 122 | 45 | 239 | 160 |
| 1,000 x 2,000 | 45 | 257 | 132 | 63 | 338 | 174 |
| 1,200 x 2,000 | 63 | 297 | 126 | 88 | 390 | 166 |
| 1,350 x 2,500 | 102 | 427 | 130 | 142 | 561 | 170 |
| 1,500 x 3,000 | 153 | 579 | 132 | 214 | 761 | 174 |
| 1,700 x 3,000 | 191 | 639 | 128 | 267 | 840 | 168 |
| 2,000 x 3,500 | 308 | 875 | 128 | 430 | 1150 | 168 |
| 2,500 x 4,000 | 663 | 1381 | 137 | 925 | 1815 | 180 |
| 2,500 x 5,500 | 943 | 2019 | 148 | 1317 | 2653 | 195 |
| 3,000 x 5,000 | 965 | 1815 | 148 | 1341 | 2359 | 198 |
| 3,000 x 6000 | 1184 | 2243 | 152 | 1646 | 2916 | 203 |
| 3,300 x 4,500 | 1175 | 1884 | 130 | 1640 | 2476 | 171 |
| 3,300 x 6,500 | 1814 | 3015 | 146 | 2532 | 3961 | 191 |
| Note: Other size can be produced follow client's requirements. | ||||||
Detailed Photos





Why Choose Hongruntong Marine?
Anti-Slip & Pressure-Dispersing Ribbed Structure
The outer ribbed design is the key advantage of all our fenders:
Anti-slip: Ribs increase friction between fender and vessel hull by 40% vs. smooth pneumatic fenders, preventing sliding in wet, windy, or wave-prone conditions.
Pressure dispersion: Ribs distribute berthing pressure evenly across the fender surface, reducing local wear by 50% and extending service life to 8–12 years (vs. 5–7 years for smooth fenders).
Flexible Pneumatic Impact Absorption
Adjustable cushioning: Inflation pressure (0.06–0.12MPa) can be adjusted based on vessel tonnage – lower pressure for small yachts (prevents hull damage), higher pressure for large tankers (enhances impact resistance).
No permanent deformation: Pneumatic core rebounds quickly after impact (recovery rate ≥95% in 3 seconds), avoiding the “settling” issue of foam fenders.
Marine-Grade Durability
Corrosion resistance: All rubber materials undergo 5,000-hour salt spray testing with no degradation; hardware uses 304/316L stainless steel (no rust in seawater).
UV & oil resistance: SBR/NR/CR rubber blends include anti-UV and anti-oil additives – no cracking from sun exposure or swelling from fuel spills.
Easy Installation & Maintenance
Deployment: Lightweight models (≤80 kg) can be installed by 2 people; large models use standard marine cranes (compatible with most port equipment).
Maintenance: Only monthly air pressure checks are needed (10–15 minutes per fender); inner bladders are replaceable (no need to discard the entire fender if bladder leaks).
Quality & Testing
FAQ
Q1: What is the advantage of a ribbed pneumatic fender compared to a smooth fender?
A1: The ribbed surface provides extra abrasion resistance and protects vessel hulls and berthing structures from friction damage, extending service life.
Q2: Can these fenders be customized?
A2: Yes, Hongruntong Marine offers custom diameters, lengths, reinforcement layers, and fittings to meet specific project needs.
Q3: What is the expected service life?
A3: With proper handling and maintenance, pneumatic ribbed fenders can last many years in harsh marine environments.
Q4: Are they suitable for high-energy berths?
A4: Yes, the combination of ribbed exterior and reinforced pneumatic core provides excellent energy absorption for high-impact berthing.
Q5: Do you supply complete fender systems with accessories?A5: Yes, lifting rings, chains, protective nets, and installation hardware can be provided as part of a full fender solution.