With the introduction of Bosch Rexroth's new Alpha Pack range, users of hydraulic power packs no longer have to choose between the inflexibility and inconvenience of standard products, and the high cost and long delivery times often associated with bespoke fluid power systems. Assembled from off-the-shelf components, these modular hydraulic power units can be ready for delivery just four weeks from the date of order.
Reservoir capacities are from 100 to 1,000 litres, and continuous delivery pressures up to 280 bar are possible. The packs are supplied with either fixed or variable displacement pumps, including gear, vane or piston types, with power ratings from 2.2 to 55kW and, depending on the pump type, they can support flow rates of up to 171 litre/min.
Pump controls for Alpha Pack products are optimised for energy efficiency and safety, and can be arranged to provide constant pressure, as well as flow- or pressure-controlled operation, with automatic load sensing. Appropriately sized accumulators, in conjunction with an accumulator control system, further aid energy efficiency by allowing the power packs to cope with cyclic and emergency loads without having to increase basic capacity.
Bosch Rexroth's power unit configurator software provides step-by-step guidance through the configuration process to optimise both performance and value for money in any specific application. The software also calculates pricing, producing a detailed quotation as well as an assembly drawing, a circuit diagram and a detailed parts list.