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YACHT AND BOAT PROPELLERS

Range of 3-blade propellers, 4-blade propellers, 5-BLADES propellers and blades 6

- PROPELLERS MARINE
- SURFACE PROPELLERS
- TAPER PROPELLER

PROPELLER
SHAFT BRACKETS

The propeller shaft brackets are manufactured according to the technical requirements naval

PROPELLER SHAFTS

Our propeller shafts are manufactured using advanced technological processes

RUDDERS

The design of the control surfaces is carried out in every detail, carefully choosing the materials

COUPLINGS

We manufacture flanges with computer technology (CNC) and are suitable for any type of inverter

STERN TUBES

Our pipes can be in the following materials: OTS, OT63, ALUMINIUM, FE510 ...

MECHANICAL
SEALS

How do you work the mechanical seal pss and because it is the most sold in the world

WATER LUBRICATED BEARINGS

The Bushes idrolubrificate are built with an outer sleeve of brass

QUOTATION
PHONE
QUOTATION

YACHT AND BOAT PROPELLERS

DESIGN PROPELLERS FOR BOATS AND YACHTS ITP

Our standard production of boat and yacht propellers includes a range of 3-blade propellers, 4-blade propellers, 5-blade propellers, 6-blade propellers.

Italian Propellers designs propellers for boats and yachts made of manganese brass alloy and nickel aluminium bronze alloy.

Boat propellers made from these two types of alloys guarantee higher water and corrosion resistance, improving propeller requirements whilst sailing.

The manufacturing of these propellers responds to the demands of pleasure boats, fishing boats, speed boats, tug boats and medium tonnage ships.

The boat propeller manufacturing operations start from a long and careful study and design phase.

Precision and professionalism are key factors when creating products that promote the highest possible output with the lowest fuel consumption.

Another paramount aspect of boat propellers is the pitch, given that a wider pitch means higher top speed, and a smaller one means increased acceleration.

At Italian Propellers we use a selection of prime materials combined with the efficacy of our innovative, state-of-the-art and constantly evolving in-house production lines.

Although most boat propellers are based on 3 and 4 blades, the Italian Propellers team can also deliver:

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3 BLADES 4 BLADES 5 BLADES 6 BLADES
3 BLADES G3

3 BLADES G3
Area covered 45%
Material: NiBrAl o OTS

3 BLADES G4

3 BLADES G4
Area covered 50%
Material: NiBrAl o OTS

3 BLADES F5

3 BLADES F5
Area covered 55%
Material: NiBrAl o OTS

3 BLADES D9

3 BLADES D9
Area covered 75%
Material: NiBrAl o OTS

3 BLADES D10

3 BLADES D10
Area covered 80%
Material: NiBrAl o OTS

3 BLADES D11

3 BLADES D11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES L5

4 BLADES L5
Area covered 55%
Material: NiBrAl o OTS

4 BLADES L6

4 BLADES L6
Area covered 60%
Material: NiBrAl o OTS

4 BLADES L7

4 BLADES L7
Area covered 65%
Material: NiBrAl o OTS

4 BLADES P8

4 BLADES P8
Area covered 70%
Material: NiBrAl o OTS

4 BLADES P9

4 BLADES P9
Area covered 75%
Material: NiBrAl o OTS

4 BLADES P10

4 BLADES P10
Area covered 80%
Material: NiBrAl o OTS

4 BLADES P11

4 BLADES P11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES P12

4 BLADES P12
Area covered 90%
Material: NiBrAl o OTS

4 BLADES PC11

4 BLADES PC11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES PV10

4 BLADES PV10
Area covered 80%
Material: NiBrAl o OTS

4 BLADES PV11

4 BLADES PV11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES PV12

4 BLADES PV12
Area covered 90%
Material: NiBrAl o OTS

4 BLADES PV13

4 BLADES PV13
Area covered 95%
Material: NiBrAl o OTS

4 BLADES PV14

4 BLADES PV14
Area covered 100%
Material: NiBrAl o OTS

4 BLADES SH10

4 BLADES SH10
Area covered 80%
Material: NiBrAl o OTS

4 BLADES SH11

4 BLADES SH11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES SH12

4 BLADES SH12
Area covered 90%
Material: NiBrAl o OTS

4 BLADES SH13

4 BLADES SH13
Area covered 95%
Material: NiBrAl o OTS

4 BLADES SH140

4 BLADES SH14
Area covered 100%
Material: NiBrAl o OTS

4 BLADES SK11

4 BLADES SK11
Area covered 85%
Material: NiBrAl o OTS

4 BLADES X9

4 BLADES X9
Area covered 75%
Material: NiBrAl o OTS

5 BLADES MC12

5 BLADES MC12
Area covered 90%
Material: NiBrAl o OTS

5 BLADES MC13

5 BLADES MC13
Area covered 95%
Material: NiBrAl o OTS

5 BLADES MC14

5 BLADES MC14
Area covered 100%
Material: NiBrAl o OTS

5 BLADES MV10

5 BLADES MV10
Area covered 80%
Material: NiBrAl o OTS

5 BLADES MV11

5 BLADES MV11
Area covered 85%
Material: NiBrAl o OTS

5 BLADES MV12

5 BLADES MV12
Area covered 90%
Material: NiBrAl o OTS

5 BLADES MV13

5 BLADES MV13
Area covered 95%
Material: NiBrAl o OTS

5 BLADES MV14

5 BLADES MV14
Area covered 100%
Material: NiBrAl o OTS

5 BLADES MV15

5 BLADES MV15
Area covered 105%
Material: NiBrAl o OTS

5 BLADES SFM10

5 BLADES SFM10
Area covered 80%
Material: NiBrAl o OTS

5 BLADES SFM11

5 BLADES SFM11
Area covered 85%
Material: NiBrAl o OTS

5 BLADES SFM12

5 BLADES SFM12
Area covered 90%
Material: NiBrAl o OTS

5 BLADES SFM13

5 BLADES SFM13
Area covered 95%
Material: NiBrAl o OTS

5 BLADES SFM15

5 BLADES SFM15
Area covered 105%
Material: NiBrAl o OTS

5 BLADES SMX11

5 BLADES SMX11
Area covered 85%
Material: NiBrAl o OTS

6 BLADES FV12

6 BLADES FV12
Area covered 90%
Material: NiBrAl o OTS

6 BLADES FV13

6 BLADES FV13
Area covered 95%
Material: NiBrAl o OTS

6 BLADES FV14

6 BLADES FV14
Area covered 100%
Material: NiBrAl o OTS

6 BLADES FV15

6 BLADES FV15
Area covered 105%
Material: NiBrAl o OTS

PROPELLERS

ITALIAN PROPELLERS, PROPELLERS, RUDDERS, COUPLINGS, PROPELLER SHAFTS, STERN TUBES AND BRACKETS

Italian Propellers is a company that designs and manufactures propellers, rudders, propeller shafts,
bushings and brackets, and has over 35 years of experience in the marine industry

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PROPELLERS

Our production range includes a range of 3-blade propellers, 4-blade propellers, 5-BLADES propellers, propeller blades 6

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RUDDERS

The features of our rudders for boats arise from the results of particular experiences hydrodynamic

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COUPLINGS

Are performed with standard C45 material. On request we can produce flanges with Zinc Plating White 25 micron

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Repairs and revisions are carried out exclusively at the headquarters of Telgate, Bergamo (Italy).

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SHAFTS

Our propeller shafts are manufactured using advanced processing technology, ensuring quality and reliability

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STERN TUBES

Our tubes per carton can be in the following materials: OTS, OT63, ALUMINIUM, FE510, Others on requesta

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BRACKETS

The Propeller Shaft Brackets are manufactured according to the technical requirements shipyards

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RIVA PARTS

ITALIAN PROPELLERS is responsible for the supply of spare parts for a variety of Riva yachts.
Learn to boats which we have spare parts »



Manufacturing of boat propellers

For over 35 years Italian Propellers has been exploiting state-of-the-art technologies, not only for the production of boat and yacht propellers, but also for:

We also provide propeller repair services for any type of boat that is damaged, even partially, as a result of impact with sand banks, getting stranded on rocks or other events.

The Italian Propellers team guarantees the customer a 360-degree service for all types of damage.

The service includes the repair, overhaul and adjustments of damaged propellers and, if necessary, the cost calculation and realisation of single propellers.

The company cooperates with Shipyards, Ship Owners and Ship Registers, so as not to restrict itself to the individual production of 3, 4, 5 or 6 blade boat propellers.

As for a boat propellers, the lower the number of blades - the higher the level of performance, but this can create excessive vibrations, which is detrimental to the water tightness of the vessel, manoeuvrability and comfort.

A boat propeller with more blades decreases in efficiency, but the vibrations also decrease, resulting in a boat that is safer and more comfortable.

Our in-house team, with the support of a study and research centre, boasts the ability to manufacture custom boat propellers.

The manufacturing of custom propellers starts from the customer specifications or drawings, following all the design and manufacturing phases through to the final delivery.

All activities are certified and do not require the services of intermediaries or third-party companies for activities related to the manufacture or design of propellers.

The activities related to the manufacturing of boat propellers, the overhaul, adjustment and design of marine propellers and supports, are all part of a quality control system.

A quality control, in accordance with ISO 484/2 certification, to guarantee product excellence over time with no compromising.

The propeller models for boats and yachts that require more repair, refit, straightforward maintenance, balancing or rebalancing are as follows:



Boat propeller repairs

Of the many activities managed in-house by the Italian Propellers team, the repair of boat propellers is the area in which our know-how is best represented.

In addition to the design, production and manufacturing of marine propellers, Italian Propellers also deals with the reconstruction of missing parts of propellers.

The boat propeller and its couplings undergo constant stress while the vessel is at sea, resulting in a loss of engine thrust.

Based on our experience in the marine industry, propeller repair services also include the possibility to increase or decrease the pitch.

Increasing or decreasing the propeller pitch to boost and optimise boat performance can also be achieved by sharing data provided by customers.

As well as intervening on cavitation which, in addition to damaging the boat propeller can create excessive cylinder overheating and consequently the risk of seizure.

Repairs to propellers may also involve the modification, manufacturing or realisation of:

Various modifications to the propeller cone, and conical cartridges are also available to adapt shaft propellers to smaller diameter shafts and finally variations to the blade itself.

All the activities are included in a quality control system by adhering to a number of certifications based on the activities carried out.



Marine propeller overhauls

There are several elements that can impact the correct fuel consumption and the speed of vessels and one of these is definitely related to the propeller overhauls.

It is essential that the propeller has a perfect configuration to avoid compromising safety or encountering a more serious problem whilst sailing.

During the overhaul of the boat propeller, it is important to carefully examine and detect any deformations that can cause loss of performance.

It is important to check for the presence of debris or scaling on the boat propeller blades to avoid decreasing efficiency and generating vibrations whilst sailing.

Thanks to extensive experience in the marine industry, Italian Propellers carries out scheduled routine and extraordinary maintenance including the overhaul of marine propellers.

Propeller overhauls can be carried out on boats and yachts ranging from 7 to 50 metres in size.

Propeller overhaul related activities can focus on one or more factors, such as:



Marine propeller balancing

The balancing of marine propellers consists in eliminating vibration from the propeller to prevent shaft bearing faults and entire engine failure.

Positioned on a pivot pin, the balancing of the two-blade propeller is achieved by removing the material from the heavier blade so that both propeller blades weigh the same

Often, with three-blade, four-blade and five-blade propellers, a propeller balance level similar to a bubble balancer used in other sectors is adopted.

The boat propeller is balanced by removing material from the heavier blades, by drilling the propeller boss at the base of the blade, until the level resets to zero.

Sometimes weight is added to the lighter side and then fastened to the propeller by means of welding or brazing operations performed with exceptional professional expertise by Italian Propellers.

The working life of the bearings is also increased considerably thanks to the proper propeller balancing and, in a marine application, propeller vibrations could potentially sink the boat.

In the balancing of boat propellers, the blades are often stored until the correct weight is removed to guarantee that the propeller is duly balanced.

Italian Propellers guarantees the overhaul, repair and balancing of boat propellers exclusively in-house, thanks to its team of highly qualified professionals.

Thanks to the use of state-of-the-art technologies which impact the dimensional checks of the diameter, pitch or shape in order to achieve best possible engine coupling.

Italian Propellers is not just about reconstructing the profile and shape of propeller blades, or their repair or replacement due to poor maintenance.

Dynamic static balancing of the propellers is also available, as is the surface finishings of any balancing and customisation of any kind, to guarantee the safety of the customers whilst sailing.



Marine propeller balancing

We have to know all the secrets of each individual vessel in order to carry out interventions aimed at improving performance, such as the balancing of marine propellers.

This is an extremely delicate intervention, given the fundamental importance of the boat propeller that can have an impact on the entire vessel and safety whilst sailing.

This is an extremely delicate intervention, given the fundamental importance of this element for the excellent condition of the whole vessel and safety when sailing at sea.

Italian Propellers guarantees to all its customers multiple innovative solutions with superior quality materials and products along with state-of-the-art technologies to meet all market demands.

To avoid serious breakdowns and malfunctions of vessels it is important to carry out the envisaged routine maintenance, following the strict procedures concerning safety and quality control.

In the event of damage or wear to the boat propeller, it is necessary to foresee the replacement of the various components such as:

Italian Propellers also provides propeller balancing services for boats, choosing from the many types of propellers and materials available, as well as adapting the propeller pitch to optimise performance.

All types of operations involved in the balancing of marine propellers are based on an exceptionally high level of quality and preliminary risk assessment to guarantee a safe and reliable product.

The static and dynamic balancing of the marine propellers, at the headquarters of Italian Propellers, is completed with the issue of a Certificate of Conformity related to finishing activities, also in class S.

Using a software specifically developed to conduct quality control, Italian Propellers focused on improving the quality of its products and the efficiency of all the services it delivers.



Manufacturing of boat propellers

The manufacturing of boat propellers is an operation that requires many years of experience in the marine industry, highly qualified personnel and superior quality products.

Italian Propellers is a company with over 35 years of experience in the marine industry and manufactures propellers for boats, guaranteeing an innovative and safe product.

The propeller manufacturing products are of superior quality, innovative and designed and manufactured in a scrupulous manner, only using state-of-the-art materials and technologies.

Boat propellers are a key component in all vessels and represent the thrust element of the vessel, i.e., the one that transmits the movement.

The manufacturing of boat propellers made of OT-MAN (manganese brass) alloy and NI-BRAL (nickel aluminium bronze alloy) includes:

Every day Italian Propellers sets itself the objective of optimising the existing range of its products and designing innovative solutions that can fully meet the demands of its customers.

The company poses no restrictions in any of its activities given that, in addition to standard manufacturing, it is able to provide all its customers with marine propellers tailored to meet their every demand.

The manufacturing of boat propellers is based on the customer's specifications, including highly detailed drawings, which are all checked by the Italian Propellers in-house experts.

The other option is to assign the manufacturing and design of propellers to the company's research and studies centre, exploiting the many years of experience in hydrodynamics and sailing tests.

In any case, the boat propellers made and designed by the Italian Propellers experts are able to meet all envisaged demands, paying utmost attention to every minute detail.

The propellers manufactured by Italian Propellers provide the best possible performance in any type of activity, without foregoing maximum safety whilst sailing.



Designing of boat propellers

The designing of boat propellers is a very complex process, as no two boats are ever the same, given that engines, weights and outfitting always differ.

It is therefore necessary to take the measurements of the boat and conduct innovative studies in order to design and manufacture the right propeller for each individual boat, and create and configure the best solution for each of them.

It is also important to understand the requirements of the ship owner, a boat with retrofitted engines may also need to change the propellers in order to adapt them to the new engine.

It is necessary to assess all the characteristics of the vessel, such as type, weight, and maximum speed that impact the design of the boat's propeller, its shape, size and pitch.

This is why Italian Propellers designs 3 to 6-blade propellers for pleasure boats, specifically tailored to meet the demands of each individual customer, even the most performing ones.

hanks to a state-of-the-art technical study and the use of elaborate hydrodynamic analysis software, Italian Propellers guarantees the superior level of quality and safety of the manufactured propellers.

The design of each propeller is the end result of hours of work by qualified experts and testing of the materials used to be able to deliver a product that poses no unexpected events whilst sailing.

During the design phase, it is necessary to bear in mind that the profile of the boat propeller, affects its performance to maximise efficiency, exert thrust or reduce the noise level.

The initial phases of the designing of marine propellers include:

The expert technical team then processes the information to obtain an accurate model of the propeller, which must pass strictest quality and safety tests.

A 3D printer is used to prepare a prototype mould to produce propellers that guarantee maximum sailing comfort and performance.

Italian Propellers performs ongoing material studies and strict controls during the casting phase, using the NIBRAL propeller design to prevent wear of elements at sea.

Once extracted from the moulds, the propellers are trimmed, balanced and polished by highly skilled personnel using state-of-the-art measuring instruments.

The design of the boat propellers fully complies with the specifications indicated for each individual vessel and customer, and comes with a 24-month warranty.

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