Making throttling losses a thing of the past
Even today, hydraulics offer many advantages that can't be achieved with any electromechanical solution. Particularly when it's a matter of getting maximum forces from a small space, there is no way of avoiding hydraulics. Not disputed, however, is its most serious drawback: the poor energy efficiency. This is mainly due to throttling losses at the control valves and the present efficiency of conventional components.
Closed-loop linear axes are always the right choice when fast and precise control is required, and energy needs to be recovered. These subsystems can be flexibly positioned in machines and plants and can therefore be decentralized. The other well-known advantages of conventional hydraulics such as overload protection, heat dissipation, damping or emergency stop functions are retained and can be easily and safely incorporated using proven components.
Sounds simple, but not exactly trivial in practice. The reliability and performance of many of today's pumps are not optimal at every operating point. Especially with high forces and low speeds, or when reversing, they quickly reach their limits. Our new AX pumps can do this much better!