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Turbodrive 600 H.C.T

The largest and most powerful unit in the Castoldi range, the Turbodrive 600 H.C.T. is built for serious vessels that need forceful thrust and lightweight durability. With titanium and duplex stainless steel components, it's engineered for demanding commercial and large leisure applications.


Impeller type4 blades, single stage, axial flow
Impeller diameter (at inlet)600 mm
Stator5 blades
Integrated gearboxHeavy duty, 13 gear ratios available
Input flangeUp to 285 mm diameter drive shaft flange
ClutchBuilt-in multi-disc hydraulic clutch
Transom angle90°
Drive shaft rotationClockwise (looking at input driveshaft flange)
Inspection hatches2, inboard
Hydraulic actuatorsAll inboard, waterjet mounted
Water pick-up (engine cooling)4" GAS
Unit dry weight (complete)1,700 kg
Hydraulic system weight120 kg
Entrained water volume450 litres
Oil volume56 kg, SAE 30 uni-grade (gearbox and hydraulics)
BearingsAll oil lubricated
Water intake protectionMovable debris screen grid, dual set of hydrodynamically profiled bars
Reversing systemCastoldi "Twin-Duct" bucket (75% of forward static thrust)
Steering systemSteering nozzle integrated in a protective bowl