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Mjosundet Båt og Hydraulikk

Norwegian shipyard and maritime hydraulics manufacturer founded in 1926, now specialising in aluminium boats and hydraulic deck equipment.

Last updated September 29, 2026

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Overview

Mjosundet Båt og Hydraulikk AS, also known as MB Hydraulikk AS or MBH, is a Norwegian shipyard and maritime equipment manufacturer based at Mjosundet on the island of Ertvågsøya in Aure municipality. The company was founded in 1926 by Klaus Ås under the name Mjosundet Båtbyggeri A/L and spent its early decades building small wooden boats. Over time it moved into larger vessels and today concentrates on aluminium boats and hydraulic deck equipment. MBH develops and produces hydraulic equipment for the maritime environment. Its product range includes winches and capstans, cranes and other lifting equipment, MOB (man-overboard) davits and cranes, side thrusters, and special products and system solutions. The company states that LARS (launch and recovery systems) covers the main part of its product spectrum. Its stated goal is to solve customer needs by being best in system, design, weight and maintenance, and thereby to be the first choice of quality-conscious customers. Customer-driven innovation and development work is described as an essential part of everyday operations at MBH. Key characteristics of most of the company's products are seawater-resistant aluminium, low weight and low maintenance; high-pressure hydraulics as the most compact form of power transmission; and integration of electronics and hydraulics. The company is also experienced in the use of both steel and electric operation where this is desired or natural. A large share of production is delivered to the fishing fleet, and the company has also supplied the Norwegian Navy — for example, the nine mine countermeasure vessels built at Kværner Mandal were equipped with hydraulic deck equipment from Mjosundet Båt og Hydraulikk. MBH remains an active, privately held Norwegian company. Its service organisation supports hydraulic, mechanical and electrical systems on board vessels and at shipyards in Norway and abroad, and the company has advertised for service technicians and service managers as part of what it describes as strong growth with a good order intake.

History

Mjosundet Båt og Hydraulikk AS traces its origins to 1926, when Klaus Ås founded the business as Mjosundet Båtbyggeri A/L. For many years the yard built small wooden boats, a core activity of many Norwegian coastal yards of the period. In the early 1950s, Ås developed a new method of fastening (a "nate-metode") for binding together the frames of wooden boats. After demonstrating the method to Det norske Veritas, it was approved; Ås took out a patent on it, and the method eventually spread throughout Norway. Over the decades the company moved from small wooden craft towards larger vessels, and its production focus shifted. Today the yard concentrates on aluminium boats and hydraulic deck equipment. Other products include side thrusters and frequency-controlled anti-roll tanks. A large share of production is delivered to the fishing fleet, and the company has also supplied the Norwegian Navy: the nine mine countermeasure vessels built at Kværner Mandal, for example, were equipped with hydraulic deck equipment from Mjosundet Båt og Hydraulikk. In the modern era the company operates under the name MB Hydraulikk AS (MBH) and describes itself as developing and producing hydraulic equipment for the maritime environment. Its product range covers winches and capstans, cranes and other lifting equipment, MOB davits and cranes, side thrusters, and special products and system solutions, with LARS covering the main part of the product spectrum. The company emphasises seawater-resistant aluminium, low weight and low maintenance, high-pressure hydraulics, and the integration of electronics and hydraulics, while also being familiar with steel and electric operation. Customer-driven innovation and development is described as an essential part of daily work. MBH remains active and privately held, based at Mjosundet on Ertvågsøya in Aure. Its service organisation works on hydraulic, mechanical and electrical systems on board vessels and at shipyards in Norway and abroad, and the company has recruited service technicians and service managers as part of what it describes as strong growth with good order intake.

  • 1950

    In the early 1950s, Klaus Ås develops a new method for fastening the frames of wooden boats; it is approved by Det norske Veritas and patented, later spreading across Norway.

  • 1926

    Klaus Ås founds the business as Mjosundet Båtbyggeri A/L.

  • The yard shifts from small wooden boats to larger vessels and eventually concentrates on aluminium boats and hydraulic deck equipment.

  • Nine mine countermeasure vessels built at Kværner Mandal are equipped with hydraulic deck equipment from Mjosundet Båt og Hydraulikk.

  • MBH advertises a permanent Service Technician / Service Manager position, citing strong growth and good order intake.

Products and positioning

Quality-conscious supplier of compact, low-weight, low-maintenance hydraulic maritime systems, aiming to be the first choice of demanding customers.

  • Winches and capstans

    Hydraulic deck machinery for maritime use.

  • Cranes and other lifting equipment

    Hydraulic cranes and lifting gear for vessels.

  • MOB davits and cranes

    Man-overboard davits and cranes for rescue and recovery.

  • Side thrusters

    Manoeuvring thrusters for vessels.

  • LARS (launch and recovery systems)

    Launch and recovery systems covering the main part of the company's product spectrum.

  • Aluminium boats

    Aluminium vessels, a core production area of the yard.

  • Frequency-controlled anti-roll tanks

    Anti-roll tank systems for vessels.

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