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BL-ZBOX Retractable Ladder with Trap Door

Verified by manufacturer 17 days ago

BL-ZBOX-1

Bilco UK Variant:

Industrial grade retractable aluminium ladder with laminated, insulated trapdoor.

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+44 (0)1284 701696 Website

Application

Designed for use in areas where the floor space must be kept clear such as schools and hospitals.

Description

Industrial standard retractable ladder designed for easy installation and fitted with heavy duty counter balancing springs to provide safe and controlled operation. The product also benefits from a timber lining and trapdoor to enclose the ladder from the underside.


Available with 30 or 90 minute fire ratings, the hatch box and trap door feature a hollow metal design that is fabricated from 1.5 mm steel and insulated with mineral wool insulation (38 mm thick - 30 minute fire rating, 75 mm thick - 90 minute fire rating). The lining features a flange around both the ceiling and the trap door to help prevent flame and smoke penetration, and the ceiling flange is 29 mm wide whilst the flange around the trap door opening is 15 mm wide.


Features and benefits:

  • Lift assistance: Two heavy duty springs are incorporated into pivot brackets to counter-balance the ladder weight.
  • Manufactured to BS EN 14975 (DN 4570) standards.
  • Lining depth: 500 mm from the underside of the hatch to the trap door in the closed position.
  • Load bearing: 200 kg per tread - overall unit 500 kg/m².

General information

Color

Other

Finish

Varnished

Mill

Material

Aluminium

Guidance for specification option:

Die-cast aluminium alloy.

Wood

Guidance for specification option:

The lining and trap door are fabricated from 18 mm thick laminated wood.

Warranty description

-

Manufacturer guidance

Manufacturer's warranty.

Uniclass

Pr_25_30_85_03 Aluminium loft laddersPrimary

CAWS

L30/41 Loft ladders

L30/421 Loft ladders

Specification data - Aluminium loft ladders

Standard

To BS EN 14975.

Guidance for specification option:

DN 4570.

Strings

-

Floor to ceiling height (minimum)

<2500 mm.

Handrails

Not required.

Telescopic.

Guidance for specification option:

Requires a minimum ceiling opening length of 1000 mm. Additional steps are also available to installation above the ceiling opening.

Treads

350 x 140 mm.

Guidance for specification option:

Number of treads: 9.

Loft trap door

-

Minimum opening size (length x width)

1000 mm (minimum hatch length).

Operating mechanism

Electric.

Manual.

Topside.

Fire rating

Non-fire rated.

FD30.

Guidance for specification option:

30 minutes.

FD90.

Guidance for specification option:

90 minutes.

Trap door and lining

Varnish coating.

Guidance for specification option:

Available to protect the wood.

Manufacturer's standard.

Operation

Electric.

Guidance for specification option:

Optional, trap door and stair can be open and closed with a simple push of a button.

Manual.

Guidance for specification option:

Standard.

Topside.

Guidance for specification option:

Optional, supplied with a cable/pull ring for access from above.

Accessories

None.

Additional steps.

Guidance for specification option:

Available for installation above the ceiling opening.

Insulated trap door and lining.

Guidance for specification option:

Supplied with 63 mm thick insulation. Can also be supplied with a lining depth up to 860 mm, insert requirements.

BIM objects

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Platform Compatible Version
IFC

IFC2X3

2

Revit

Revit 2016

3

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