Wärtsilä Equipment
Wärtsilä Fixed Pitch Propellers
Tailor-made monobloc fixed pitch propellers in Wärtsilä Cunial® material for all power levels, with replacement propeller service, full shaftline supply package and hydrodynamic consultancy.
Description
Wärtsilä fixed pitch propellers (FPP) are monobloc propellers cast in a single piece with hub and blades, designed for each vessel to balance efficiency, noise and vibration across a wide range of speeds and power densities. Designs draw on LIPS and Wärtsilä experience and use CFD, model tests and full-scale data.
Key features
- Wärtsilä Cunial® propeller material with excellent casting, machining and fatigue properties and minimised weight
- Any number and size of blades
- Improved EEDI/EEOI
- Complies with EPA Vessel General Permit 2013 (EAL application); pollution-free stern tube arrangement available
- Good reparability and easy installation
- Combinable with EnergoPac, EnergoProFin, High Performance Nozzle and OPTI Design for further savings
- High-end low underwater radiated noise designs for research and navy vessels
Replacement propellers
Retrofit propellers can improve efficiency by up to 15%, e.g. after a change to slow steaming, severe damage, poor initial design or to reduce pressure pulses.
Supply package
- Hydraulic tool sets, nut assembly and ring
- Propeller and intermediate shafts
- Hydraulic coupling flange and sleeve coupling
- Accessories: efficiency rudder (EnergoPac), HP nozzle, propulsion control, built-up propellers, EnergoProFin, stern tube, seals and bearings, thrust bearings, torque measurement, turning device, shaft grounding, shaft brake, rope guard, net cutter
Consultancy
Hydrodynamic optimisation, shaftline design, alignment, whirling vibration and jackload calculations, and evaluation of jackload measurements.
Applications
Container vessels, tankers, bulk carriers, dry cargo vessels, passenger liners, research and navy vessels.
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