SSI 128 is a thermally insulated lift-and-slide system featuring a 20 mm polyamide barrier and EPDM gaskets. Mono-rail, double-rail and triple-rail configurations can accommodate up to six movable sashes.

Its deep frame and substantial sash capacity support large glass panels, while compatibility with different hardware systems and multi-point locking provides design flexibility and security.

Key specifications:
Frame depth: 128 mm
Fixed visible width: 44 mm
Vent visible width: 101 mm
Sash depth: 55 mm
Glazing thickness: 20-34 mm
Maximum sash size: 3000 x 2700 mm
Maximum sash weight: 300 kg