WATER · Water
Pontoon Flotation Buoys
HDPE flotation buoys engineered for pontoon and barge applications — 7-tonne lift class as standard. Made-to-spec for project loads from a few hundred kilos up to multi-tonne marine flotation.
At a glance
Specifications.
Standard lift
7 tonnes per buoy (reference: Koolan Island deployment)
Custom lift
Smaller and larger capacities fabricated to project spec
Material
HDPE — corrosion-free, UV-stable, sealed
Compatibility
Pontoons & Barges product line — bolt-up under standard HDPE decks
Why this product
Engineered for working sites.
Pontoon flotation buoys provide the lift element for HDPE pontoon barges, modular work platforms and shore-tied flotation rigs. The 7-tonne reference variant was deployed at Koolan Island, supporting the 12 m HDPE pontoon barge build.
- 7-tonne lift standard — larger and smaller capacities to spec
- HDPE construction — corrosion-free, UV-stable, no painting
- Sealed buoyancy chambers — survives strikes, never fills
- Designed to bolt-up under standard HDPE pontoon decks
- Compatible with the wider Polyline pontoon and barge product range
Distinct from Survey Buoys (Polystone PE instrumentation buoys) — these are structural flotation elements rated for tonnes of lift, not measurement instruments.
Sizes
Pick a size — or spec your own.
| Size | OD | Length | Weight | Notes |
|---|---|---|---|---|
| 7-tonne (standard) | — | — | — | Standard production buoy · Koolan Island reference deployment |
| Custom — sub-tonne to multi-tonne | — | — | — | Sized to project lift envelope and pontoon-deck footprint |
Gallery
Built in WA.
Ready to specify pontoon flotation buoys?
Send your site details and requirements — our engineering team will scope and quote.