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Propulsion & rudder systems, coolers, anti-fouling
Based in the Netherlands and with roots dating back to 1962, Blokland Non Ferro has set a standard in terms of craftmanship, engineering and construction.
Our high-standard cooling and propulsion solutions are installed in many commercial shipping, pleasure crafts and industrial applications worldwide.
Production of cooling and propulsion systems is done in our modern utilized factory, using all our expertise, craftmanship, high-quality machinery and the timeless effort of our dedicated employ
Our high-standard cooling and propulsion solutions are installed in many commercial shipping, pleasure crafts and industrial applications worldwide.
Production of cooling and propulsion systems is done in our modern utilized factory, using all our expertise, craftmanship, high-quality machinery and the timeless effort of our dedicated employ
Innovations & solutions
Products
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EasyStern modular propulsion systems
for yachts and workboats
for yachts and workboats
All-in propulsion drive line package from gearbox output flange up to the propeller and rudder; high skew propellers, stainless steel duplex propeller shafts, modular light weight GRP stern tubes with rubber bearings, EasyStern ClampSeals, a variety of shaft seals both radial- and mechanical and a variety of connections to the gearbox (Blokflex , Aquadrive, Vulkan, etc.).
Rudder systems
rudder systems for yachts and workboats
rudder systems for yachts and workboats
Complete rudder system for steel, aluminium and composite boats, grease or self lubricated (=maintenance free) rudder stock bearings fit inside a rigid rudder tube, Simmering sealing rings, isolation of noise and vibration (BNF Optiprop system), ruddershaft with or without flange connection, with or without foorstep bearing, specially designed rudder blades in mild steel or stainless steel.
Bottom type coolers
ideal cooling system for pleasure craft and commer
ideal cooling system for pleasure craft and commer
The steel box is placed inside the vessel against the hull. After installation, the bottom remains flat. There are no protruding parts that may be damaged or sea-chests that can become clogged.
An additional sea-water pump is not required. The bottom type cooler is easy to install. The tube bundle is removable. Bottom type coolers are ideal for places with limited installation height and with a coated tube bundle the element is sea-water resistant.
An additional sea-water pump is not required. The bottom type cooler is easy to install. The tube bundle is removable. Bottom type coolers are ideal for places with limited installation height and with a coated tube bundle the element is sea-water resistant.
Box coolers
efficient cooling on commercial ships
efficient cooling on commercial ships
This type of cooler (heat exchanger) will cool down the primary engine circuit using seawater. No water inletfilters, valves and extra seawater pump are required. The box coolers can be mounted along ship or across ship.
Box coolers can be used in fresh-, brackish and sea-water. They are supplied complete, as standard, with a steel welding frame, making drilling and tapping redundant.
The box cooler has to be placed in a sea chest, which itself is installed in a convenient
horizontal position within the hul
Box coolers can be used in fresh-, brackish and sea-water. They are supplied complete, as standard, with a steel welding frame, making drilling and tapping redundant.
The box cooler has to be placed in a sea chest, which itself is installed in a convenient
horizontal position within the hul
AxiSeal propeller shaft seal
durable and maintenance free mechanical seal
durable and maintenance free mechanical seal
Are you looking for an absolutely maintenance-free propeller shaft seal?
If yes, there is only one option: the AxiSeal® propeller shaft seal.
The AxiSeal® is truly unique, offering a totally different way of sealing with many advantages compared to e.g. radial seals; like conventional stuffing boxes or lipseals.
The AxiSeal mechanical seal comes with a rigid stainless steel housing. The cardridge design is supplied incl. stainless steel fittings, ready to be installed onto the stern tube.
If yes, there is only one option: the AxiSeal® propeller shaft seal.
The AxiSeal® is truly unique, offering a totally different way of sealing with many advantages compared to e.g. radial seals; like conventional stuffing boxes or lipseals.
The AxiSeal mechanical seal comes with a rigid stainless steel housing. The cardridge design is supplied incl. stainless steel fittings, ready to be installed onto the stern tube.
EasyTurn rubber bearings
water lubricated shaft bearings
water lubricated shaft bearings
Water lubricated rubber bearings for all kind of applications e.g. in stern tubes and pumps.
A comprehensive stock with different shell materials is available at our premises.
Custom made bearings can be offered at attractive prices and with short delivery times.
A comprehensive stock with different shell materials is available at our premises.
Custom made bearings can be offered at attractive prices and with short delivery times.
Plate heat exchangers
maximum heat transfer
maximum heat transfer
Plate Heat Exchangers are designed for maximum flow rate by minimizing pressure loss. The plates are hung on the upper guide bar and are tightened between the stand (fixed frame) and the end plate (movable frame). The fluid flows through a narrow space between the plates and heat is exchanged across the plate surfaces. The fluids can travel through the heat exchanger in various directions of flow, such as looped, in series of plates.
Vulkan flexible couplings
Megiflex and Propflex couplings
Megiflex and Propflex couplings
A flexible coupling provides a flexible connection between the propeller shaft and gearbox, reducing noise and vibration on board and damping torsional vibrations. The Vulkan Megiflex-BT is available from 194 Nm up to 8125 Nm and uses dedicated high elastic rubber elements to effectively dampen noise and vibrations.
The PROPFLEX T is well used in yachts and commercial vessels and is a combination of a flexible coupling with a thrust bearing. The thrust bearing can be positioned (aligned) with RotaChocks. Th
The PROPFLEX T is well used in yachts and commercial vessels and is a combination of a flexible coupling with a thrust bearing. The thrust bearing can be positioned (aligned) with RotaChocks. Th
GreenSonic
anti-fouling technology
anti-fouling technology
GreenSonic has realised an entire new anti-fouling solution. Initially developed to protect cooling systems against marine fouling, GreenSonic systems provide fouling prevention for other applications as well. Our advanced, programmable, ultrasound system not only reduces the emission of harmful and poisonous materials, but is also cost saving. Discover the power of green!
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