Products Products 311 series– Quarter Turn Worm Gear Operator for manual operation QTA-150 to QTA-0.15M – 31 models Catalogue Manual 612 series – Manual Override Gear Operator for pneumatic actuation QTM-100 to QTM-35000 – 13 models Catalogue Manual 143 series - Quarter Turn Worm Gear Operator for Electrical Actuation QTE-700 to QTE-45000 – 12 models Catalogue Manual 519 series – Multi Turn Bevel Gear Operators (Standard Thrust and Medium Thrust) QTA-150 to QTA-0.15M – 31 models Catalogue Manual 1710 Series - Quarter Turn Worm Gear Operator With Spline for Electrical & Manual Operations QTA-150 to QTA-0.15M – 31 models Catalogue Manual 518 Series - Multi Turn Worm Gear Operator for Electrical & Manual Operations QTA-150 to QTA-0.15M – 31 models Catalogue Manual
