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Pin-puller launched by Weber

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Together with crane manufacturer Liebherr, Weber-Hydraulik and Weber Rescue Systems have developed battery-operated pin-pulling cylinders for construction of lattice boom cranes.

The manufacturer of rescue equipment, Weber Rescue Systems, offers customised hydraulic solutions for industrial applications. One of those is a battery-operated pin-pulling cylinder developed together with Liebherr, offering huge time and cost savings when setting up construction sites. The mobile unit replaces heavy diesel units and contributes to superior safety.

The unit is a specially designed hydraulic cylinder with a fully integrated battery-operated hydraulic unit for pulling and pushing connecting pins during the assembly or dismantling of cranes. Its internal electro-hydraulic drive means that the cylinders are not tied to a power unit, and can therefore be used on a flexible and convenient basis. The movement of the cylinder is controlled via the remote control or with the rocker switch.

The development of the pin pulling cylinder amounts to a successful collaboration between the Hydraulics and Rescue business units. Building on the extensive industry knowledge of Weber-Hydraulik, Weber Rescue Systems benefits from the longstanding experience with battery-operated systems for hydraulic applications. “When manufacturing rescue equipment, we are used to applying the maximum force to the minimum space. Our pumps are optimally designed for high pressures of this kind. In conventional industrial solutions, systems are used with significantly less pressure, and the cylinders have to be correspondingly bigger,” explains development manager Josef Eder, explaining the advantages of the system.

In the area of Weber Rescue Systems, the flexible, dust- and spark-free cutting systems are of interest for applications in the dismantling of buildings, the recycling of vehicles and the lifting of heavy loads such as prefabricated components, bridge formwork or roof trusses. In the field of manufacturing, the flexible battery-operated devices are used to separate aluminium castings which are cast in multiple moulds, for example.