TPT September 2015

Article

VOSS Fluid GmbH

Reliable hydraulics thanks to high-quality connection technology By Dr.-Ing. Harald Pott, division manager technology at VOSS Fluid GmbH

zinc-nickel base coating VOSS coat for all tube couplings. These fulfil all specifications of the EU End-of-Life Vehicles Directive, which has prohibited surfaces containing chromium VI since 2007. Together with independent research institutes and universities (for example Aalen University of Applied Sciences), a corrosion protection has been developed that is around ten times better than conventional zinc coatings in comparison to the base coats. In contrast to purely zinc surfaces, zinc-nickel does not form any distinct white rust during corrosion, but instead only a slight grey haziness. The values are 50 times below the limit values stipulated in EU

Introduction Small components with big system function: the process reliability of hydraulic connection technology is crucial for the effective and economical operation of modern working machinery in all sectors. A central aspect here is the pursuit of greater energy efficiency – yet the loads in fluid technology also rise as efficiencies increase. To ensure that systems subject to permanent stress – such as plastic injection moulding machines and large excavators in mining – can also function under tougher conditions, components are needed that correspond to the requirements for the leak safety of connection points, while providing effective corrosion protection. For the user this means, besides a choice of system-compatible connecting components, the focus is on correct assembly and the selection of a competent supplier. VOSS Fluid GmbH is a manufacturer of pipe connecting systems and a system partner to international mechanical engineering. The product portfolio comprises tube connections for stationary and mobile hydraulics including cutting ring and flanged screw couplings, tube forming systems, flange couplings, valves and accessories. VOSS Fluid has long- standing expertise in the production of customised connecting parts, enabling it to implement this effectively in the development of system solutions and technical advice for its customers. The result: consistently high-quality components, a high level of corrosion protection, time-efficient assembly capability of the components, and hydraulic systems with long-term leak tightness. “Surface” quality A central, qualitative condition is the coating of the tube connections. This is a prerequisite for permanent corrosion protection along with functionally stable and hence economic components. VOSS Fluid utilises its in-house, sustainable High levels of efficiency, alternating temperature conditions and frequent load changes – hydraulic systems of stationary and mobile working machinery are subject to continuous loads. To ensure the greatest possible functionality long-term, corrosion-resistant and precise connection technology is indispensable.

Larger connecting parts with up to 2.5kg weight and sensitive outer threads are placed manually on frames by personnel, thereby preventing potential damage to the thread during the coating process

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S eptember 2015

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