Stacking door SPACELITE HT40

The original fibreglass door: space-saving – translucent – economic

The stacking door SPACELITE has been designed specifically for the application in industrial or workshop buildings. Upon opening, the separate light transmitting fibreglass door panels stack safely and compactly in a cassette behind the lintel. Lighting fixtures, transport devices, air ventilation units or other equipment on the ceiling are not influenced by the structures. Due to the wall attachment, the minimum space requirement and the adaptability the door can be installed in nearly any situation, also in case of refurbishments.



Fibreglass – a unique material for industrial doors:

  • Light transmission up to 78% for bright working areas inside the building
  • Diffuse light without cast shadow for a perfect view and a comfortable working environment
  • Less need for artificial lighting during the day
  • Excellent thermal insulation values
  • Three colours to choose from: Brilliant, Emerald-Green or Sapphire-Blue
  • Optional vision panels in acrylic or real glass
  • Design perfectly combinable with other SPACELITE and SECTIOLITE fibreglass doors and the VARIOPLANplus fibreglass curtain wall

Special opening technology with compact design:

  • Upon opening the door panels stack safely and compactly in a cassette behind the lintel.
  • Due to the wall attachment, the minimum space requirement and the adaptability the door can be installed in nearly any situation, also in case of refurbishments

Reduced cost for operation and maintenance:

  • Electric drive with an extremely resistant and enduring gear motor
  • Direct drive without additional wear-and-tear-sensitive parts such as torsion springs
  • Micro processor control for trouble-free and comfortable operation
  • Electric supply by energy chain, no suspending spiral cable


  • Passive safety: No protruding hinges or reinforcements, no suspending cables or wires, no trapping and shearing edges
  • Anti-jamming protection: All stacking doors are equipped with a safety edge. After contact with an obstacle the door stops and re-opens automatically and instantly
  • Access protection: Hit-proof fibreglass panels and automatic anti-lifting device
  • Anti-fall protection: falling door panels are caught and stopped immediately (certified by the TÜV, German technology supervision agency)
  • Tested and approved according to DIN EN 12241-1

Technical data:

Width min. / max. [mm]*

1000 / 5500

Height min. / max. [mm]*

2000 / 8920

Lintel height [mm]*min. / max.

700 / 870

Cassette depth min. (depends on the number of door panels) [mm]*


Door panel height [mm]


Opening speed* up to

19 cm/s (40 cm/s)

Opening cycles: typically up to ..... cycles per year 50000

Wind load* class acc. to EN 12424**

2 - 4

Air permeability class acc. to EN 12426**


Water resistance class acc. to EN 12425**


Sound insulation Rw (C;Ctr) acc. to EN ISO 717-1


Operational forces / secure opening acc. to EN 13241-1



Door with fibreglass infill: with twin-walled panels 40 mm

Colour Brilliant / Emerald-Green / Sapphire-Blue

Up-value [W/m²]


Light transmission degree [%]

47 - 78

Behaviour in case of fire acc. to EN13501 / building material class acc. to DIN 4102

E / B2


Real glass door panel: with insulation glazing (1.1 W/m²K) made of 2x4mm toughened glass and thermally broken aluminium profiles, without vertical separation (up to max. 3.96m ) resp. with 1 - 2 vertical separations (up to max. 5.0 m)

Vision panel

With acrylic panes, with 1-4 vertical inter-spacers depending on the door width

Special infills

e.g. perforated sheets up to 4 or toughened safety glass 1 x 4 mm


Guide tracks: massive aluminium profile, closed on three sides, mill-finished

Door panels: aluminium profiles anodised E6-C0 (EV1)

Colour coated acc. to RAL

Anodised in British Standard

Cassette: galvanised steel


Drive: Worm gear motor with brake

Relay / contactor control, 400V/50 HZ

Frequency converter control for soft run and superior speed, 230V/50 HZ

Emergency opening with crank handle

Emergency opening with hoist chain


Safety: TÜV certified anti-drop protection integrated in the guide tracks

Motor with integrated catch device

Opto-electronical safety edge with energy supply via an energy chain or conductor rail

External photo eye

External light curtain

Laser sensor

Anti-lift protection


Option: Wet room (car wash kit)

Lintel cover made in fibreglass

Door roofing in case of external installation

Pivoting side unit with or without passage door

Moveable guide tracks between two doors

■=Standard / □=Option / *= depending on size and equipment
**test certificate available



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