October 29, 2007 -- When the Miele & Cie. KG appliance company expanded its offering of automatic washers and dryers, they decided to build a new hydraulic press line to make the rear metal panels. The press line needed hydraulic control capable of producing extremely fast press strokes to handle the transfer of each metal sheet to the next stage of the press. With help from the Bosch Rexroth industrial hydraulics Press Application Center, the new press line was successfully commissioned, running at 10-second cycle times.
Bosch Rexroth was given a stringent and thorough outline detailing the requirements for the hydraulic control. For example, the entire press stroke had to be accomplished within five seconds, since the transfer of the process sheet requires an additional five seconds. During the design phase, the individual hydraulic components from Bosch Rexroth were combined in a complete drive system, including the power unit. It is equipped with one main pump and three auxiliary pumps, a main control block, as well as a control block for the auxiliary movements of the individual presses. Accessories such as level and temperature switches are also used, as well as a butterfly valve for the press cylinder fill valve.
The hydraulic power units were first delivered to the machine builder for initial testing. The presses were then erected at Miele’s facility in only four months. The timely assistance of Bosch Rexroth contributed to this successful implementation.
Source: boschrexroth-us.com
