SCHAAF has been developing and producing hydraulic high-pressure tools of up to 4000 bars since 1954, such as ExpaTen, for example – hydraulic fitted bolts for flange joints, Hydraulic Nuts and Bolt Tensioners for marine engines, oil press-fit and accessories. Many years of experience in the production of components and high-pressure hydraulic accessories for shipbuilding and general engineering have made SCHAAF one of the forerunners in the development of new technologies. The company certified under DIN EN ISO 9001:2008 is proven to be an optimal partner for the industry due to its consistent company policy and continual development of its products. Numerous classification societies such as Lloyds Register and Bureau Veritas verify the successful use of SCHAAF products.