Tug Boat Fenders for Bow & Stern Protection
We manufacture vulcanized rubber tug boat fenders for the bow and stern, where a tug takes constant, hard contact during push and pull operations. The cylindrical body absorbs the impact at a low reaction force, using a combination of outer and inner diameters to spread the energy along the length and reduce hull wear. The high-performance rubber resists UV, seawater, and abrasion for long service, and we offer a range of sizes and customisable mounting. We have manufactured marine fenders in Qingdao since 2005, and we confirm the rubber grade — which sets the energy absorption and reaction force — against your tug’s duty.
Where Tug Boat Fenders Earn Their Place
Tug boat fenders suit the bow and stern of working tugs that push and pull other vessels and take constant contact and friction — provided the mounting position and the rubber grade are confirmed. We use them on harbour and project tugs, around ports and terminals, and in marine engineering and construction, and we size the fender and grade from the tug’s duty rather than from outer dimension alone.
How the fender protects the tug
During push and pull operations the fender is squeezed between the tug and the vessel or quay. The rubber compresses and absorbs the impact at a low reaction force, and a combination of outer and inner diameters spreads the energy along the fender’s length so the load is shared rather than point-loaded into either hull.
That high energy at a low reaction is what protects the tug’s own structure and the vessel it works: it reduces hull wear and makes berthing and pushing steadier and safer. The fender is built to take this contact repeatedly, which is why the rubber and the vulcanization matter as much as the shape.
Why a fender built for the tug, not the quay. A tug fender mounts on the bow and stern and takes contact from any direction during push, pull, and escort work, so it is shaped and graded for that duty rather than for a fixed berth. For protecting a quay wall instead of a tug, a cylindrical or super cone rubber fender is the right type.
Tug protection (push & pull)
Built for the frequent, high-impact contact of push and pull work, spreading the force to protect the tug hull and keep operations steady.
Ports & terminals
Steady protection in busy ports across tidal conditions, cushioning berthing and reducing impact stress on quay equipment.
Marine engineering & construction
Protecting offshore structures, floating platforms, drilling rigs, and construction barges, with corrosion and ageing resistance for high-salt service.
Sizes & How Performance Is Set
The cylindrical tug fender comes in a range of sizes set by its outer and inner dimensions. The table below gives the geometry; the energy absorption and reaction force depend on the rubber grade we select for the tug’s duty, so we issue those with the quote rather than read them off the dimensions. We size the fender and grade together against how the tug works.
| D (mm) | d (mm) | A (mm) | B max (mm) | C (mm) | G (mm) | J (mm) |
|---|---|---|---|---|---|---|
| 300 | 150 | 225 | 600 | 700 | 225 | 75 |
| 400 | 200 | 300 | 670 | 800 | 300 | 100 |
| 500 | 250 | 300 | 730 | 900 | 375 | 100 |
| 600 | 300 | 350 | 800 | 900 | 450 | 125 |
| 800 | 400 | 350 | 930 | 1000 | 600 | 125 |
| 900 | 450 | 350 | 1000 | 1100 | 675 | 150 |
| 1000 | 500 | 350 | 1060 | 1200 | 750 | 150 |
Dimensions in mm (to confirm on the certified drawing); D and d are the outer and inner dimensions and A, B max, C, G, and J are the fender’s profile dimensions, which map to the dimension figure on the drawing. One value we reconcile with the factory: the C column reads 900 for both the 500 and 600 rows, breaking the otherwise rising trend, so we confirm it on the certified drawing before contract. Energy absorption, reaction force, and hull pressure follow the rubber grade and are issued with the performance curves.
The most common sizing mistake. Picking a tug fender by outer dimension and ignoring the duty and the rubber grade. The same size in a different grade gives different energy and reaction, and a push-and-pull tug loads the fender differently from a berthing one. We size the fender and grade to how the tug actually works.
Know your tug and how it works?
Send the tug, the duty (push, pull, escort), and the mounting position — we size the fender and grade.
Construction & How They Are Fitted
Vulcanized high-performance rubber
The fender is moulded from high-performance rubber and cured by a full vulcanization process, which is what gives it resistance to UV, seawater, and abrasion through frequent, hard contact. The cylindrical profile uses a combination of outer and inner diameters so the energy spreads along the length rather than concentrating at the contact point.
The cylindrical body is the standard profile; other extruded profiles and sizes can be supplied to suit a specific tug or duty. Mounting is flexible across the bow, stern, and other positions on the hull — we confirm the fixing method and hardware with the tug rather than leave it generic.
Durability
Vulcanized rubber resists UV, seawater, and abrasion, holding its shape and function through frequent use and heavy impact without frequent replacement.
Versatility
A range of sizes and customisable materials and mounting fit different tugs and dock layouts, sized and configured to the job.
Low maintenance
Long service life and low maintenance reduce downtime and replacement, which is the operating-cost case for a quality tug fender.
When a Different Fender Fits Better
Tug boat fenders are one option in our wider rubber fenders range, built for the bow and stern of working tugs. They are not the fender for a fixed berth or a floating one, so here is where something else fits better.
You are fendering a fixed quay
For a fender bolted to a quay wall rather than a tug, a cylindrical, super cone, or D-type rubber fender is the right type.
You need a floating fender
For ship-to-ship transfer or a floating berth, a pneumatic fender or foam filled fender floats and suits that duty.
You need a guarded performance figure now
Where the design needs a rated energy and reaction before grade selection, we confirm the rubber grade first; the geometry alone does not set performance.
An honest boundary. The product geometry is fixed, but the energy absorption and reaction force depend on the rubber grade and the tug’s duty, and the source data lists dimensions only. Until the grade and the temperature and angular factors are confirmed, performance figures are indicative — we fix them before contract rather than quote a catalogue number.
Tug Boat Fenders — Frequently Asked Questions
Where are tug boat fenders fitted?
On the bow and stern, and other positions on the hull where the tug takes contact during push and pull work. We confirm the mounting position and fixing method with the tug rather than leave it generic.
What do they protect against?
The frequent, high-impact contact and friction of towing operations. The rubber absorbs the impact at a low reaction force and spreads it along the fender, reducing wear on the tug hull and the vessel or quay it works.
What are they made of?
High-performance rubber cured by a full vulcanization process, which resists UV, seawater, and abrasion so the fender holds its shape and function through frequent, hard use.
What sizes are available?
A range of cylindrical sizes by outer and inner dimension, with outer dimension D from 300 to 1000 mm in the standard table. Other profiles and sizes can be supplied to suit a specific tug or duty.
How is the energy absorption and reaction force set?
By the rubber grade and the duty, not the geometry alone. The same size in a different grade gives different energy and reaction, so we issue the energy absorption and reaction force per grade with the performance curves rather than print one figure.
Can the fenders be customised?
Yes. We offer customised sizes, materials, and mounting to suit a unique tug type or a specialised operating environment, confirmed with you before manufacture.
Match the fender to the tug and its duty
A tug fender is right when its grade and size suit how the tug pushes, pulls, and escorts. Send us the tug and the duty and we return the size, the rubber grade, and the performance worked for the job — not a single catalogue figure.
What to send us
6 inputsYou get back: a recommended profile, size, and rubber grade with the energy absorption and reaction force for the duty, and the mounting method.