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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.

Manufactured to BS EN 14975 (DN 4570) standards.

General information
Color

Natural

Finish

Mill

Material

Aluminium

WarrantyDescription

manufacturers warranty

Uniclass 2015 Hardwood loft ladders (Pr_25_30_85_36)
Specification data
Product Reference

Retractable Ladder With Trap Door

Ladder -
Type

BL-ZBOX-1

Size: Up to 2500 mm, number of treads: 9, minimum hatch length: 750 mm.

BL-ZBOX-2

Size: 2501–2790 mm, number of treads: 10, minimum hatch length: 800 mm.

BL-ZBOX-3

Size: 2791–3090 mm, number of treads: 11, minimum hatch length: 900 mm.

BL-ZBOX-4

Size: 3091–3390 mm, number of treads: 12, minimum hatch length: 1000 mm.

BL-ZBOX-5

Size: 3391–3690 mm, number of treads: 13, minimum hatch length: 1300 mm.

BL-ZBOX-SS

Special sizes available on request, insert requirements.

Fire rating

None fire rated

F30

30 minutes.

F90

90 minutes.

Tread width

200 mm

250 mm

300 mm

350 mm

380 mm

430 mm

530 mm

580 mm

Colour/ Finish -
Trap door and lining

Varnish coating

Available to protect the wood.

Manufacturer's standard

Operation

Electric

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

Manual

Standard.

Topside

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

Accessories

None

Additional steps

Available for installation above the ceiling opening.

Insulated trap door and lining

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

Telescopic handrail

ProductInformation

www.bilcouk.com

Product Options

Type:

  • Materials: The ladders are manufactured from die-cast aluminium alloy. The lining and trap door are fabricated from 18 mm thick laminated wood.
  • 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.
  • Tread size: Available in widths of 200, 250, 300, 350, 380, 430, 530 or 580 mm. Treads that are 200–380 mm wide are supplied with a depth of 140 mm. 430–580 mm wide treads have a depth of 160mm.
  • Tread rise: Subject to the floor to ceiling height. The typical tread rise will be between 277 - 280 mm.
  • Lift assistance: Two heavy duty springs are incorporated into pivot brackets to counter-balance the ladder weight.

Fire rating:

Available with 30 or 90 minute fire ratings: 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). Lining features a flange around both the ceiling and the trap door to help prevent flame and smoke penetration. The ceiling flange is 29 mm wide and the flange around the trap door opening is 15 mm wide.

Accessories:

- Telescopic handrail:

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

Digital objects
PlatformCompatibleVersionCertified to
IFC
IFC2X3 2 1.3
Revit
Revit 2016 3 2.0
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