QUICK BT AC 513-1000 TWIN NIBRAL PROPELLER THRUSTER WITH 75 KW MOTORTwin Propellers are made in sturdy NiBral material. Recommended boat length 105-155 ft. Solenoids protection carter in sturdy composite material. Composite material. Bronze gearbox. Independent zinc anode from the gearbox and easily replaceable. Equipped with elastic coupling.The Gearbox is created so that the behavior of the propeller is unaffected in either direction. The conical gears that make up the gearbox are reinforced and adjusted to ensure maximum efficiency. Maintenance is not required since the special highly resistant components guarantee a perfect lubrication seal for life. The anodic zinc protection is easily replaceable.The bronze propeller gear leg is provided with a hydrodynamic profile that minimizes turbulence.The twin 4-blade NiBral Propellers guarantee maximum thrust performance and reduction in current absorption. This is made of composite materials, resistant in every condition, and fastened with self-locking nuts in stainless steel.The case that protects the reversing contactors is made of robust composite materials that are resistant to corrosion. The electrical connections are provided with quick connectors.The elastic joint that optimizes the alignment between motor and gearbox is an exclusive Quick design. This acts as an even tension device, preserving the operating system from impulses from the bow thruster, with above-average results.For use with 105 to 155 ft. boats - Tunnel inside diameter 513mm / 20.19" - Twin 4 Blade NiBral Propellers. Propulsion System Double Propeller Contra-rotating (NIBRAL) Tunnel Diameter 513 mm 20" 13/64 Motor Power 75 Kw Voltage 400/690 Vac Thrust 1000 Kgf (2205 lb) Weight 742 Kg (1635.8 lb) Boat Size 32 - 48 m (105 - 155 ft)
