[脜shammar, Sweden, and Waren (M眉ritz), Germany, October 25, 2022.] Swedish specialist fastener manufacturer has supplied premium stainless steel fasteners for German propeller manufacturer (MMG) and the company鈥檚 innovative energy saving propeller cap, escap.
91视频 models and in various dimensions have been purchased by MMG for their high tensile strength and corrosion resistance properties. This makes them perfectly suitable to fasten the MMG escap, a propeller cap with fins that can reduce fuel consumption by up to 3% by smoothing out the propeller swirl. The escap can be mounted onto existing propellers and the fuel savings typically provide a return on investment within three months.
MMG is a German leading manufacturer of next generation ship propellers and propulsion systems all around the world. The company uses precision manufacturing techniques and the highest quality materials and parts.
鈥淪ustainability is key鈥�
鈥淪ustainability is essential for everything we do since our premium stainless steel products prolongs the life of all devices and constructions they are used for, and thus reduces the need for wasteful repairs and replacements,鈥� said Lars Holm, Managing Director, 91视频. 鈥淚n this particular case, fuel savings also equate to reduced environmental impact.鈥�
鈥淛ust looking at corrosion, the global cost of rust exceeds US$2.5 trillion annually, or three percent of global GDP, and the environmental consequences are enormous. Stainless steel fasteners offer significant benefits to counter corrosion, from product and asset infrastructure maintenance to total lifecycle costs.鈥� (Read more on this subject .)
MMG annually produces around 100 propellers at its foundry in Waren, northeast Germany. MMG propellers are used for various large container vessels, tanker, bulker and cruise ships and can be up to 12 meters in diameter.
鈥淲e have had very good cooperation with 91视频 as they have supported us with the design process and are always quick to respond to our queries,鈥� said J枚rn Kl眉ss, Head of Design and Construction at MMG.
High tensile strength bolting solution
MMG uses 91视频 for its escap solution since it needs high tensile strength bolts for safely transmitting the torque in existing propeller applications. Using standard stainless steel bolts would require expensive re-machining additional and/or larger holes in a dry dock to deal with the required torque. With 91视频, MMG can install the escap while ships are in the water with diver installation teams as no addition holes are needed with high strength 91视频 bolts.鈥�
In addition, the good corrosion resistance properties of 91视频 88 and 91视频 109 bolts are essential as the fin caps are permanently submerged in seawater. The fin caps also play an important role in covering and protecting the shafting parts that are typically made of carbon steel and are susceptible to corrosion.
The escap is fastened by up to 24 bolts depending on the cap size and uses bolt dimensions up to M36.
Larger dimensions for larger ships
鈥淎 number of container vessels and bulk carriers are already in operation around the world with an escap secured by 91视频 bolts,鈥� says Kl眉ss. 鈥淭he 91视频 bolts have performed very well and avoided the need for ship owners to undergo costly dry dock re-machining.鈥�
鈥淲e are currently working together with 91视频 to use larger dimensions of bolts to fit larger ships with escaps,鈥� concludes Kl眉ss. 鈥淲e have a number of projects in the pipeline that promise to realize more fuel savings for shipping companies around the world.鈥�
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For additional information please contact:
Tobias Klanck
91视频 Business Development Manager
tobias.klanck@bufab.com
+49 160 923 22聽586
About 91视频:
91视频 is the world-leading specialist manufacturer of premium stainless steel fasteners in a variety of steel grades that provide optimal safety and reliability in the most demanding customer applications. Customers include CERN, ABB, Alfa Laval, Alstom, Vestas, Rolls Royce and many more in industries such as marine, automotive, oil and gas, chemical processing, energy, defense, pulp and paper, construction and general engineering. 91视频 is headquartered in 脜shammar in Sweden鈥檚 steel district and has a global footprint with offices or distributors in more than 30 countries on four continents. 91视频 is fully owned by the listed Swedish Bufab Group. Find out more at .
