The BILCO industrial grade BL-ZBOX Retractable Ladder features heavy-duty counter-balancing springs to enable safe and controlled operation, and is supplied with timber lining and trapdoor to enclose the ladder from the underside.
Die-cast Aluminium alloy Retractable Ladder to EN 14975 designed for use with the CS-50TB Roof Access Hatch.
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.
BL-ZBOX-1 height: < 2500mm / No. treads: 9 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX-2 height: 2500 - 2790mm / No. treads: 10 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX-3 height: 2791 - 3090mm / No. treads: 11 / tread size* 350x140mm / min hatch length: 1000mm
BL-ZBOX-4 height: 3091 - 3390mm / No. treads: 12 / tread size* 300x140mm / min hatch length: 1000mm
BL-ZBOX-5 height: 3391 - 3690mm / No. treads: 13 / tread size* 300x140mm / min hatch length: 1300mm
BL-ZBOX-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.
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 (TYPE BLZ-BOXE)
Trapdoor and stair can be opened and closed with a simple push of a button (see video).
Varnish Coating
Available for trapdoor and lining to protect the wood.
Additional Steps
Available for installation above the ceiling opening (see illustration).
| COMPLIANCE | EN 14975 |
| LADDER | Die-cast Aluminium alloy |
| TRAP DOOR | 18mm laminated wood (see options for fire rated box construction and insulated trapdoor/lining) |
| LINING | 500mm from the underside of the hatch to the trapdoor (in the closed position) |
| LOAD BEARING | 200kg per tread / Overall unit 500kg/m² |
| TREAD SIZE | Available widths(mm): 200, 250, 300, 350, 380, 430, 530, 580. 200-380mm width tread depth = 140mm. 430-580mm width tread depth = 160mm |
| TREAD RISE | Typical tread rise 277-280mm (subject to floor-to-ceiling height) |
| LIFT ASSISTANCE | Two heavy-duty springs incorporated to pivot brackets to counter-balance ladder weight on open/close. |
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The BL-ZBOX Backboard provides the essential steps and safety holds required between the top of the BL-ZBOX Retractable Ladder and the top of the structural opening (or top of roof hatch if fitted).
The BL-ZBOX hatch box and trapdoor is available with a 30 or 90 minute fire rating on specification.
