BUMAX Provides Fastener Solution for Swiss A-Cat Catamaran Rudder

21.12.2021
Swiss ship builder Scheurer Bootswerft AG has opted for screws from Swedish specialist fastener maker BUMAX to fix its high-performance catamaran rudders where standard fasteners would simply fail.
BUMAX Provides Fastener Solution for Swiss A-Cat Catamaran Rudder

BUMAX provides reliable stainless steel fastener solution for Swiss high-performance A-Cat catamaran rudder. (Image source; BUMAX AB)

High-strength BUMAX 109 screws are being used to fasten the A-Cat catamaran rudders constructed by Scheurer Bootswerft. An A-Cat catamaran has two rudders, and each Scheurer Bootswerft rudder is secured with two BUMAX 109 screws.

BUMAX 109 fasteners have a high molybdenum content which, coupled with unique BUMAX manufacturing processes and sourcing of the highest quality European raw material, makes it the strongest A4 fastener on the market. It offers high corrosion resistance and strength in demanding applications.

The BUMAX 109 is used for water jets, sub-sea equipment, pumps, valves, wind turbines, high-pressure equipment, nuclear plants, submarines, particle accelerators and many other applications where commodity A4 fasteners are inadequate. They provide greater safety and will last significantly longer than standard fasteners.

“We originally used standard stainless steel A4 screws to fasten the rudders, but as the rudders come under very high tension when turning through the water at speed, we found that these screws were bending and eventually breaking,” said Aron Steinmann, CEO at Scheurer Bootswerft. “Even a small bend in these fasteners can alter the angle of the rudder, which reduces performance. Importantly, the high-strength BUMAX screws can cope with this high tension to keep the rudder at the correct angle while maintaining corrosion resistance in saltwater environments.”

Scheurer Bootswerft has also found that BUMAX fasteners can cope with sudden impacts, for example when the rudder hits debris in the water.

“The screws fastening the rudder are a simple but essential part of the catamaran as their failure can be the difference between winning or losing a race,” said Steinmann. “They simply cannot be allowed to fail.”

BUMAX is a Swedish manufacturer of premium stainless steel fasteners located in the Swedish “steel belt”. BUMAX  is known as the strongest stainless steel bolt in the world – providing optimal safety and reliability to fasteners in the most demanding of applications.

Scheurer Bootswerft AG is a specialist ship builder based in Nidau, northwest Switzerland. The company has built A-Cat catamaran for regatta around the world for around 40 years. The A-Cat sailing class, often abbreviated to A-Cat, is a development class sailing catamaran for singlehanded racing.

Source: BUMAX AB

More articles on this topic

Hydrogen: A Déjà Vu Moment for Arlon 3000XT

20.07.2023 -

The key to new challenges is sometimes hidden in the past. Such is the case with equipment and processes needed to produce, store, and transport hydrogen. A major hurdle facing those looking to upgrade their equipment or design new equipment is: Lack of polymer materials capable of withstanding the extreme challenges inherent to the hydrogen environment.

Read more

AxFlow Norway Announces Acquisition of VA-Prosjekt Midt-Norge AS

03.07.2023 -

AxFlow Norway is pleased to announce the successful acquisition of VA-Prosjekt Midt-Norge, a renowned provider of turnkey solutions to municipalities in the field of water and wastewater infrastructure. The acquisition marks a significant milestone in AxFlow’s strategic expansion plan, reinforcing its commitment to delivering comprehensive and sustainable solutions to customers in Norway.

Read more

Xylem’s New High-Pressure Dewatering Pump Delivers Savings of up to 10% and Reduces Carbon Emissions

23.06.2023 -

A new dewatering pump has been released by Xylem, developed to significantly increase efficiency, cut costs, and minimize downtime for construction and mining customers. Designed to meet the unique demands of deep-mine and high-pressure water transfers, the Godwin HL270M Dri-Prime Pump can deliver cost savings of up to 10% when compared with competing solutions.

Read more

TECHINDIA 2023

19.06.2023 -

TECHINDIA is a leading Business Exhibition on Engineering and Manufacturing. The 11th edition scheduled during 1-3 September 2023, at Bombay Exhibition Centre, Mumbai (India) will showcase the exhaustive range of innovations and technological refinements in the complete product segment of “Pumps, Valves & Compressors”, “Gears, Motors & Controls” and “Bearings, Shafts & Couplings” and other allied sectors.

Read more