Product features

BACHSMOKE Z is an automatic smoke-tight curtain that restricts and controls the movement of smoke in the event of a fire, in addition to the D120 and DH120 classifications. The system can be adjusted to irregular geometric perimeters, open or closed, to avoid vertical columns. The curtain consists of: a fiberglass fabric with a polyurethane coating on both sides, sewn with reinforced steel wire and fastened to a 2mm panel inside the top box and to the bottom bar; the upper box and the lower bar elements are made of galvanized steel. The entire system is controlled by at least one 24 Vdc tube motor with a special gravity system in the event of a fault. Automatic curtain control panel (CBM), with a nominal input voltage of 115 Vac or 220 Vac and an output voltage of 24 Vdc. An uninterruptible power supply (UPS) with an autonomy of up to 6 hours exists in all control panels. Tested and approved in accordance with the European standard UNE EN 12101-1 and with the CE mark.


The system can be activated via SHEV, fire alarm contact, built-in fire and smoke detection devices, or manual emergency buttons. In the event of a fire, the BACH control panel (CBM) receives a signal alarm, and the automatic curtain is automatically activated, at a controlled and safe rate of descent even after a complete loss of power on all curtains. In the event of a false alarm, the curtain automatically returns to sleep mode after resetting the alarm from the main fire control system. In the event of a power failure, the curtains will remain fully raised for up to 6 hours thanks to BACH's battery backup system.


  • CBM control panel
  • BACH's tube engine 24Vdc
  • Upper galvanized steel box
  • Galvanized steel roller
  • Galvanized steel bottom plate
  • Steel lifting straps
  • Accordion fabric - fiberglass