NBS Source
List your products

Domestic or commercial spaces.


Aluminium bi-folding door with a 67 mm deep profile. It can open inwards or outwards, folding to the left and/or right. The individual glass elements can be opened or closed almost completely over their entire area in just a few simple steps. Extremely large glass elements can be moved easily and quietly.

Features and benefits:

  • Aluminium frame.
  • Panels up to 3 m high and 1 m wide.
  • 99 mm sightline.
  • Uw >1.1 W/m²K.


Domestic or commercial spaces.

General information


As drawing

Insert reference.

As schedule

Insert reference.

Uniclass 2015

Pr_30_59_24_80 Sliding door and partition setsPrimary


L20/530 Sliding folding external doors

L20/60 Doors

Specification data - Sliding door and partition sets

Product Reference

Ecoline Bi-Folding Door


Insert requirement.


As drawing

Insert reference.

As schedule

Insert reference.

Frame finish

Insert requirement, contact manufacturer for information.

Floor Track

Floor track with 14 mm upstand, inward opening

29 mm wide, for wheelchair access, suitable for living accommodation.

Floor track with 14 mm upstand, outward opening

29 mm wide, for wheelchair access, suitable for living accommodation.

Floor track with upstand

Suitable for living accommodation.

Mini floor track with 14 mm upstand

29 mm wide, for wheelchair access.

Mini floor track with level threshold

29 mm wide, for wheelchair access.

Recessed floor track with 14 mm upstand

Without upstand, for wheelchair access.


Insert requirement, glass thicknesses of 5–36 mm can be used.

Burglar resistance (to BS EN 1627 and BS EN 1630)

Not required



Fittings/ Accessories

Many options available, insert requirements from 'Options' below.

Standard product features

Profile system:

  • Highly thermally insulated modular aluminium 67 mm thickness profile system.
  • Floor mounted, therefore little load bearing capacity of lintel required.
  • Angular profile design.
  • Minimum sight lines of 99 mm at the panel joints.
  • bionicTURTLE® - a glass fibre reinforced (GFR) polyamide single piece, multi-functional thermal break profile.
  • Loose shear bond in insulating web compensating for thermal loads.
  • Controlled drainage.
  • Runner and guide tracks integrated into the system.
  • Separate levels for runners and locking.
  • Concealed cable routing can be integrated.

Sealing system:

  • Sealing by two wrap-around lines of defence with constant gap size and even sealing pressure between panels.
  • Sealing faces are not broken by door furniture.
  • Skinned foam seals with excellent sliding properties.


  • Sustainable production.
  • Certified disposal in accordance with BS EN ISO 14001.

Technical characteristics:

  • Resistance to wind load (to BS EN 12210): B4.
  • Protection against driving rain (to BS EN 12208): 8A.
  • Air permeability (to BS EN 12207): 3.
  • Mechanical durability (to BS EN 1191 and BS EN 12400): 2.
  • Sound insulation class (to BS EN ISO 10140-2): Rw ≤40 dB.
  • Thermal performance of windows, doors and shutters (to BS EN ISO 10077-1): Uw ≥1.1 W/m²K.

Product Options


  • Panels are inward or outward folding and can be designed to slide to the right or left.
  • If the folding panel pair is hinged on frame side, tilt and turn panels can be integrated with a concealed door.
  • Folding, tilting, tilt and turn or fixed units can be combined in one single frame with continuous floor track by means of an integrating profile and modular design.
  • Single frame installation for mounting of folding system on parapet.


Panel sizes are restricted in height and width according to the type of glass used:

  • Maximum panel width: 1000 mm.
  • Minimum panel width of 800 mm for paired versions or 650 mm for left/ right sliding design.
  • Maximum panel height: 3000 mm (2700 mm for systems with opening panel).
  • Maximum panel weight: 90 kg.
  • Maximum glass/ infill weight: 20 kg/m².
  • Horizontal division bars are recommended for heights ≥2550 mm.
  • Wind and impact loads may limit the panel size.
  • Special sizes are available on request. Refer to technical literature for panel size diagrams.

Fittings/ Accessories:

  • Up to three lines of defence against ingress possible.
  • Air infiltration barrier seal for enhanced U-values as option. sealing level options available.
  • No protruding runner and guide tracks.
  • Concealed door furniture for one-handed operation.
  • For increased wind loads, additional concealed panel centring facility TwinX can be integrated.
  • System hinges for increased panel weights available.
  • Integrated system adjustment in subframe rebate outside sealing face.
  • Optimized design of the stainless steel runner track together with the hourglass-shaped runners allow for an unguided runner assembly.
  • Quiet runner mechanisms with extremely long-life stainless-steel ball bearings and bearing surfaces.
  • Easy, smooth and wear-resistant runner assemblies with double row deep groove ball bearings and integrated anti-prying guard.
  • High-grade stainless steel Solarlux designer handles.
  • Lockable one-hand-operation by means of special gearing with 24 mm throw.
  • Entry/ exit panel can be supplied with lever-handle-operated multi-point locking system and profile cylinder lock.
  • Captive hinge pins.
  • Easy Clean removable hinge pins with convenient release mechanism and operating error prevention device for cleaning the outside of panels which open to the inside of folding glass door units.
  • Specific locking points at spaced intervals allow the use of the removable hinge pin on paired as well as non-paired folding glass doors.
  • Lock monitoring by means of Reed contacts and concealed cabling.
  • Patented Comfort Snap panel catches with specified locking sequence.
  • Installation of the subframe profiles and the floor track on load-transferring plates with centering grooves and sealing cushions is optional.
  • Additional covering of the fixing screws in the frame rebate.

Similar products from Solarlux Systems Ltd