The BILCO industrial grade BL-ZBOX FR Retractable Ladder features heavy-duty counter-balancing springs to enable safe and controlled operation, and is supplied with fire rated timber lining and trapdoor to enclose the ladder from the underside.
Constructed with corrosion-resistant materials to provide many years of trouble-free, dependable service.
Available in standard or bespoke sizes to satisfy many access requirements or installations.
Fully compliant to EN 14975
Designed for use with the CS-50TB Roof Access Hatch
FIRE RATING
Available with 30 or 90 minute fire ratings.
Hatch box and trapdoor feature a hollow metal design that is fabricated from 1.5mm Steel and insulated with mineral wool.
Insulation
30 minute fire rating - 38mm thick mineral wool insulation
90 minute fire rating - 75mm thick mineral wool insulation
Lining features a flange around both ceiling and trapdoor to help prevent flame and smoke penetration.
Ceiling flange - 29mm wide
Flange around the trapdoor opening - 15mm wide
TYPE BL-ZBOX RETRACTABLE LADDERS
BL-ZBOX FR-1 height: < 2500mm / No. treads: 9 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX FR-2 height: 2500 - 2790mm / No. treads: 10 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX FR-3 height: 2791 - 3090mm / No. treads: 11 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX FR-4 height: 3091 - 3390mm / No. treads: 12 / tread size* 300x140mm / min hatch length: 1000mm
BL-ZBOX FR-5 height: 3391 - 3690mm / No. treads: 13 / tread size* 300x140mm / min hatch length: 1300mm
BL-ZBOX FR-SS Manufactured to special size on request
* alternate tread sizes are available - please contact us. (Note: 250mm wide treads do not comply to EN 14975 standards)
Handrail BL-Z ladders are supplied with a standard telescoping handrail on one side*
An additional handrail for the opposed side can be supplied if specified*
*Handrail requires a minimum ceiling opening length of 1000mm.
OPTIONS
Additional Handrail
An additional handrail for the opposed side can be supplied if specified.
Insulated Trapdoor and Lining
Supplied with 63mm thick insulation.
Increased Lining Depth
Can be supplied with lining depth up to 860mm.
Topside Operation
Supplied with a cable/pull-ring for access from above.
Electronic Operation
Trapdoor and stair can be opened and closed with a simple push of a button
Varnish Coating
Available for trapdoor and lining to protect the wood.
Additional Steps
Available for installation above the ceiling opening (see illustration)
