Cylindrical Hollow Rubber Fender belongs to the Tug Boat Fenders system, which is a key category of marine rubber fender solutions designed specifically for tugboat operations. Within this product family, it is one of the most widely used and fundamental types due to its balanced performance in energy absorption, durability, and installation flexibility.
This type of fender is engineered using high-quality natural rubber combined with reinforced synthetic cord layers, enabling it to withstand repeated high-impact contact during towing, pushing, and berthing operations. Its hollow internal structure allows controlled deformation under load, effectively absorbing kinetic energy while maintaining low reaction force to protect both the tugboat and the assisted vessel.
The outer rubber compound is specially formulated to resist abrasion, seawater corrosion, UV exposure, and oil contamination, ensuring long-term reliability in harsh marine environments. Compared with other Tug Boat Fenders within the same category, this type offers a more universal design suitable for a wide range of vessel sizes and working conditions, making it a standard configuration in many tugboat fleets worldwide.
A medium-sized commercial port in West Africa faced recurring issues with its tugboat fleet used for assisting oil tankers and bulk carriers. The tugboats, operating in the 50-70 ton bollard pull range, were experiencing frequent damage to their existing fender systems due to continuous high-impact contact during berthing and escort operations.
After adopting Cylindrical Hollow Rubber Fender systems from Hongruntong Marine, the port reported significantly improved impact absorption performance during vessel pushing and side contact operations. The fenders maintained structural stability even under repeated compression cycles and harsh marine exposure conditions.
Within several months of operation, the customer reported a significant reduction in maintenance frequency and a marked extension of service life compared to the previous solution. Tugboat operators also observed smoother vessel handling performance, with reduced vibration and improved safety during close-contact maneuvers.
| Place of Origin | China |
| Brand Name | Hongruntong Marine |
| Product Name | Tug Boat Fenders |
| Material | High Quality Natural Rubber |
| Warranty | 3 Years |
| Standard | PIANC2002, HGT2866-2016 |
| Tensile Strength | ≥16 MPA |
| Hardness | ≤82 Shore A |
| Lifespan | 15-20 Years |
| Service | OEM or ODM |
| Color | Customers' Requirements |
| Application | Tugboat, Workboat etc |
| D*d | E | A max | B max | C | M | F | L |
|---|---|---|---|---|---|---|---|
| 250*125 | 190 | 200 | 570 | 500 | 75 | 300 | 2-13 metres in one section or joined for longer length |
| 300*150 | 225 | 225 | 600 | 700 | 75 | 350 | |
| 380*190 | 280 | 225 | 650 | 800 | 100 | 400 | |
| 400*200 | 300 | 250 | 670 | 800 | 100 | 400 | |
| 450*225 | 350 | 250 | 700 | 850 | 100 | 400 | |
| 480*240 | 350 | 250 | 700 | 850 | 100 | 400 | |
| 500*250 | 375 | 280 | 730 | 900 | 100 | 400 | |
| 540*270 | 375 | 280 | 730 | 900 | 100 | 400 | |
| 600*300 | 450 | 300 | 800 | 900 | 125 | 500 | |
| 700*350 | 500 | 350 | 870 | 950 | 125 | 500 | |
| 800*400 | 600 | 350 | 930 | 1000 | 125 | 500 | |
| 900*450 | 675 | 350 | 1000 | 1100 | 150 | 500 |