The Kounis Metal Industries’ fire-rated and patented ladder tray systems are among the most cost effective and versatile systems on the market today.

Invented and developed after extensive in-house and laboratory testing by qualified engineers, the systems fully comply with AS/NZS 3013:2005, Appendix C, Classification WS5X – 2 hour fire rating up to 1,050ºC.

The Systems offer a superior 25-50% higher loading rating compared to other fire-rated products on the market today. Importantly, the Kounis fire-rated systems can be installed in tight ceiling spaces where other products on the market will simply not fit.

The foundation of the fire-rated systems is the superior, robustly engineered standard Kounis ladder tray with its unique, extra ribbed design that is specifically intended to offer a stronger point load with less cross-sectional deflection which cannot be offered by any other supplier. In addition, the ladder tray is supplied with custom designed stringers which are fastened to the tray to provide extra strength and decrease longitudinal deflection.

The invention offers the advantage of normal installation for continuous non-fire rated runs using the standard Kounis ladder tray systems and can be retrofitted with the patented support system where fire rating is required. This reduces the requirement for special, expensive, single purpose products that are not transferable to the next installation where fire-rated support systems may not be specified.

System options include:

KT3 Ladder Tray System
•    3m length
•    50mm high sided tray
•    Uniform load rating 50kg per metre
•    Support span 1m

KT5 Ladder Tray System
•    3m length
•    85mm high sided tray
•    Uniform load rating 75kg per metre
•    Support span 1m

Both systems have fire-rated splice plates and trapeze supports used in conjunction with 12mm threaded rod.

•    Must be used as a complete system to achieve fire rating.
•    Ends of runs must be supported.

Contact a Kounis representative for further information.