High-Strength Drainage for Demanding Applications

The Ausdrain 50mm HexCell Extreme Duty 550 is a heavy-duty drainage cell engineered for applications requiring greater compressive strength and drainage capacity than standard 30mm drainage cells.

Its 50mm profile creates a permanent, open drainage cavity between the concrete slab and soil profile, allowing water to flow towards designated outlets. The high-volume void structure helps reduce water build-up and provides an efficient alternative to conventional gravel drainage systems.

Designed for demanding commercial, industrial and infrastructure projects, the Extreme Duty 550 combines a high-strength structure with a unique Dovetail Clipping System and anti-slip design to help reduce movement and accommodate localised environmental impacts and natural subgrade movement.

Key Performance Benefits

• 150 tonnes/m² compressive strength – designed for applications requiring high load-bearing capacity.
• 90% volume void – provides substantial internal capacity for water movement.
• 70% surface void – supports efficient drainage through the cell structure.
• 50mm drainage cavity – creates a permanent void between the substrate and soil profile.
• High flow capacity – flow rate of 19,200 litres/hour/m² at 1% fall.
• Dovetail Clipping System – helps secure adjoining panels.
• Anti-slip design – helps reduce movement during installation and use.
• Chemical and biological resistance – unaffected by moulds, algae, soil-borne chemicals and bacteria, according to the manufacturer.
• Material options – available in Reprolene™ recycled polypropylene or HDPE.

Typical Applications

The Ausdrain 50mm HexCell Extreme Duty 550 is suitable for a range of demanding drainage applications, including:

• Under-slab drainage
• Commercial driveway drainage
• Underground tank drainage
• Railway drainage systems
• Aviation drainage applications
• Rigid permeable paving
• Vertical garden systems
• Facades and balustrades
• Privacy screening applications
• Commercial underground drainage

Panel Dimensions and Supply

The individual HexCell module measures 550mm × 550mm × 50mm.

The product is supplied in larger 1.1m × 1.1m panels, providing an efficient format for handling and installation across larger project areas.