The demands on internal logistics are constantly growing. The desire for shorter throughput times, more flexibility and less downtime in production increasingly requires intelligent intralogistics solutions. With LOGAR, HAWE Hydraulik has developed a maintenance-free, electrohydraulic system solution for automated guided vehicle systems that even exceeds the requirements for a long service life. Developed for lifting and lowering AGV and AMR platforms, the lifting system combines high energy efficiency and a long service life with a compact design, according to HAWE.

The patented new development ensures precise synchronization and self-synchronization through the series connection of the four differential cylinders – time-consuming programming for synchronization is no longer necessary. Supplied ready for connection, users do not need any hydraulic knowledge for installation and commissioning; operators should be able to do both simply by plug & play.

Compared to electromechanical applications, LOGAR applies 100 percent of the forces vertically from the start of the stroke. This completely eliminates lateral forces and reduces wear. “Our customers benefit above all from 1,000,000 maintenance-free cycles. This is because LOGAR has a service life three times longer than that of electromechanical solutions,” says Ahmed Wasel, Key Market Manager at HAWE Hydraulik.

On top of that, the integrated BLDC motor is more efficient than brushed motors. It achieves an efficiency of 85 to 90 percent. Its pilot-controlled check valves hold loads of up to 1,500 kilograms securely in position and prevent unwanted lowering. The lifting and lowering process can be switched quickly, directly, and without loss by changing the direction of rotation of the pump-motor unit. In addition, LOGAR is designed to be leak-free: the closed design prevents the ingress of contaminants and the leakage of oil, which further increases operational safety.

The compact design of the LOGAR creates space for the installation of other components. Thanks to a sophisticated modular system and system technology expertise, HAWE is able to adapt the solution individually to the requirements of the AGV and AMR platforms. “This means that our new development even exceeds some of the key requirements placed on AGV and AMR platforms,” emphasizes Wasel.

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