Keyhole / Omega Type Rubber Fender for Ships and Docks
Product Overview
Keyhole / Omega Type Rubber Fender for Ships and Docks is a solid-rubber profile for vessel stem, side and stern protection as well as drydock, floating-dock and quay-side installations. The supplied Ω-series drawing uses a keyhole-style central opening and mounting geometry, so the page combines the supplied Omega designation with the internationally recognized keyhole search term.
The supplied series contains two nominal cross-sections: 250 × 250 mm and 300 × 300 mm. The source provides dimensional data but no verified numerical reaction-force / energy-absorption table; performance figures are therefore not invented or copied from foreign keyhole model ranges.
Quick Specifications
- Product type: Keyhole-style / Omega solid-rubber profile fender
- Supplied nominal sizes: 250 × 250 mm | 300 × 300 mm
- Supplied B1 dimensions: 150 mm | 184 mm
- Supplied fixing-hole diameters d: 25 mm | 30 mm
- Supplied h dimensions: 50 mm | 60 mm
- Applications: ship stem, side and stern; drydock; floating dock; quay side
- Performance publication status: dimensional series confirmed; numerical reaction/energy table not supplied
Structure & Configuration
One-piece solid-rubber keyhole / Omega profile | central keyhole-style opening / slot | two mounting zones at the base | optional grooved contact face according to drawing / project requirement.
International tugboat-fender catalogues use the generic term “keyhole fender” for a closely related bow/stern profile family. That international naming is used for search intent only; foreign model codes, fixing sizes and performance values are not adopted as Zhongyuan product data.
Main Technical Specifications:
| TYPE |
Sizes (mm) |
| B |
B1 |
H |
d |
h |
| Ω250 |
250 |
150 |
250 |
25 |
50 |
| Ω300 |
300 |
184 |
300 |
30 |
60 |
Selection & Inquiry Guide
Step 1 – Confirm installation location: vessel bow/stem, side, stern, drydock, floating dock or quay.
Step 2 – Select the 250 or 300 mm nominal profile from available mounting space and existing replacement geometry.
Step 3 – Confirm total length, fixing-hole spacing, pin / bolt arrangement, backing structure and whether a grooved or smooth contact face is required.
Step 4 – If quantified performance is required, provide the design contact load / energy basis and specify the required calculation or test verification.
Step 5 – Confirm quantity, inspection/documentation scope and delivery destination.
Key Engineering Advantages
- Keyhole-style center geometry provides a compact vessel-mounted / dock-mounted profile with defined fixing zones.
- Two supplied nominal sections support replacement and newbuild arrangements with limited installation depth.
- Profile can be used in bow, side or stern protection layouts where a long continuous rubber contact strip is required.
- International keyhole terminology improves search clarity without copying another supplier's model system.
Installation & System Interface
The fender is mounted through the profile fixing zones to the vessel or dock support structure. Final length, pin / bolt size, intermediate supports, minimum bend radius and backing structure must be established for the actual installation rather than copied from another supplier's keyhole series.
Inspection & Documentation
Baseline quality control includes visual inspection, dimensional verification and rubber physical-property testing. No numerical reaction-force / energy-absorption claim is added where the supplied product material does not provide a reliable tabulated performance basis.
Current fender-system engineering guidance is used for project design and testing logic, while type approval, product certification, third-party witnessing and class documentation are stated only when the corresponding scope has been agreed and documented.
Applications
Ship stem | ship side | ship stern | tug / workboat protection | drydocks | floating docks | quay-side protection | replacement profile fenders
Drawing & Photos
FAQ
Q1: Is Omega Type the same as every international Keyhole Fender? — The supplied cross-section is keyhole-style, so the generic search term is relevant, but dimensions and fixing details vary by manufacturer and project.
Q2: Why are no foreign keyhole dimensions added? — The page publishes only the supplied Ω250/Ω300 product dimensions. Foreign catalogues are used for terminology and engineering questions, not copied as Zhongyuan product data.
Q3: Can the profile be curved around a bow? — A curved installation may be possible, but minimum radius, intermediate support and fixing arrangement must be checked for the selected section and length.
Product Tags:
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Keyhole / Omega Type Rubber Fender for Ships and Docks Images
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