Acoustic Grilles

Acoustic grilles are used at the ends of ventilation ducts to reduce noise transmitted from ventilation motors or air conditioners, as well as to minimize sound transmission between the interior and exterior environments. The body and blades of the grille are made from galvanized sheet steel. Depending on the requirements, they can be made from aluminum or stainless steel. The blades are positioned at a 45° angle and spaced at specific intervals within the frame. Additionally, the blades feature double walls: the inner wall is made of wear-resistant perforated metal (Ø5 mm holes), while the outer wall is made of galvanized steel. Between the two walls, there is acoustic insulation with a thickness of 50 mm and a density of 50 kg/m³. Acoustic grilles also protect ventilation systems from rain, birds, and other external harmful effects. The grille is coated with electrostatic powder paint.