LIBER - Folding door without lower rail


LIBER is a unilateral or bilateral opening door with manual or motorized drive. Storage at 90° or 180°

Folding door with patented drive system housed in the exclusive top rail in galvanized steel with reduced dimensions (only 150 mm) and galvanized steel side jambs with gaskets and “L”-shaped brackets, which allow adjustment on 3 axes. The bottom closure is guaranteed by a striker fixed to the floor and two point locking internal Cremone bolt with adjustable stainless steel terminals. Doors connected with exclusive black painted galvanized steel hidden hinges with ball bearings

NOTE:  the SUPERTHERMIC LIBER industrial door is also available in the evolved ISOMAX thermal break version with height limitations  ( see ›› )

Possible Configurations:


SUPERTHERMIC insulated industrial doors adapt to many customizations, for every type of installation and architectural style  ››

Robust and with high thermal insulation. The SUPERTHERMIC line optimally combines energy-saving and safety requirements. The multiple configuration options and type of opening allow optimizing the available spaces without neglecting the simplicity of use for the operators.

Door leaves: self-supporting mono-structures (variable dimensions – Max height 6000 mm)
Door leaf width: 1450 mm  max
Door leaf thickness: 55 mm
Insulation: complete self-extinguishing Class B2 CFC-free (Chlorine, Fluoride, Carbides) polyurethane insulation. High-pressure foaming cycle with density > 40 Kg/m3
Perimeter frame: dovetail shaped profile, thickness 2 mm
Double skin coating of galvanized pre-painted steel sheet with Sendzimir treatment
– smooth, thickness 0.8 + 0.8 mm
– embossed, thickness 0.5 +0.5 mm
Maximum dimensions: 4 + 4 configuration; height 6000 mm; width 12,000 mm

Air/water tightness:
– Black EPDM anti-crush/anti-ageing gaskets
– Black nylon brush, with black pre-coated support profile on the floor

Unilateral or bilateral closing/opening
– Manual
– Motorized

On request, patented system of special strikers to be recessed in the floor with telescopic operation to facilitate the transit of vehicles.

Leaf configuration: 90° o 180°

CE marking data:
– wind load resistance, class 4
– thermal resistance,  1.53 W/m2 K (calculated value for a 4-leaf door 5000×5000)
– average noise reduction, 22 dB (non-certifiable)
– fire resistance, B -S1, d0
– durability 20,000 cycles

pedestrian door
– inspection window with perimeter profile in rubber with the insertion of 8/9 laminated glass with rounded corners
– inspection window with perimeter profile in black aluminium with thermal break with 90° corners and insertion of double-glazed or laminated glass up to a maximum thickness of 40 mm
– ventilation grille with fixed slats.Dimensions 600 x 300 H or 1000 x 600 H

– internal
– external
– in-wall

Colours available:
Smooth panel or with vertical micro-ribbing pitch160 mm
– Smooth sheet metal: White similar to RAL9002, Red RAL3000, Green RAL6005, Blue RAL5010, Grey RAL9006, Grey RAL7016, Brown similar to RAL8019 and Wood tone SL65
– Embossed sheet metal: White similar to RAL9002, Grey RAL9006, Green RAL6005.

Painting in the other RAL colours available on request.