Vulkan Couplings, USA, represents the marine activities for flexible couplings, mounts, composite shafts, dampers and engineering services within the Vulkan group.
The manufacturer for flexible couplings presents a new series of couplings designed under the ACOTEC approach. ACOTEC is an expression which is on one hand the shortage for "Advanced compound technology" and on the other hand a new approach to develop flexible couplings by taking the full picture of the functional and commercial requirements.
The traditional way of creating a new coupling uses the well known design methods to analyse, optimise and layout the components of a coupling. The approach of Vulkan Coupling applying the ACOTEC method is different, starts much more earlier and covers all major phases of a successful product development including application analyses, torsional vibration calculation, component design, bonding technology, compound research, vulcanisation process simulation and development, prototype tests and performance monitoring.
The full knowledge and control of each part is essential to develop a flexible coupling, missing one leads to wrong design directions and less efficient products.
In this sense Vulkan Coupling has constantly developed its own capabilities including an experienced TVC team, inhouse vulcanisation, test centre, compound research and bonding technology. A full range of simulation tools and test equipment for on-site measurements completes the picture.
Therefore ACOTEC is more than a new compound, a more advanced vulcanisation process or an improved bonding technology. It is the sum of all, a design principle to include all relevant phases in order to deliver products designed to perform. In technical and commercial aspects.
The first three new members of the RATO family of flexible couplings is led by the RATO S+ 5H. The new ACOTEC compound, transfer moulding vulcanisation and the reduced inertia technology have delivered a flexible coupling with significant performance.
The ACOTEC RATO-S + 5H20 follows a completely new element design, the so-called integral design.
This design principle has the advantages of a conventional two-row coupling with regard to torsional stiffness and misalignment capacity with significant advantages in weight due to a reduction of the middle mass by torsional vibration calculations.
Due to the unique competence grown over many years in the field of elastomer researches and vulcanisation (transfer moulding with two mould cavities) combined with the availability of facilities for inhouse testing Vulkan can produce two-row coupling elements in integral design in well-founded production processes of highest technological demand.
Furthermore, the product specification of this new product covers the speed-up respectively the increase of performance of big four stroke cycle engines of the most important manufacturers announced for the near future for marine- and generator applications
Already in its first stage of completion – still under the name RATO-S 572W – this coupling achieves a higher power density (TKN = 400 kNm with reduced outer diameter). The second stage of completion, the exposed ACOTEC RATO-S+ 5H20, will comply with future demands for performance with an additionally increased torque (TKN = 460 KNm) keeping all dimensions.
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