Sound Insulation Rolling Door 50 dB
Effertz Sound insulation Roller Door with a sound reduction index of 50 dB(according to German standard DIN 52210 T3)
- 2 shutters made from hot galvanized interlocking steel profiles, material thickness 1,25mm, filled with mineral rock wool each with a safety contact edge according to European standard EN 12453. Distance of shutters: 645 mm.
- Side guides made of hot galvanized steel profiles.
- Bearing brackets made from prime-painted steel.
- 2 Electric drives 3~400 V/24V, grade of protection IP 54, 60 per cent duty cycle, directly coupled, with integrated arrestor according to EN 12604, thermal motor protection and upper and lower limit switch for the control and main current circuit. Emergency hand-crank with safety contact.
- Key switch prepared for profile half-cylinder