WITTMANN BATTENFELD Competence Days 2013

The MacroPower E Hybrid combines the advantages of a large servo-hydraulic machine with those of an all-electric injection unit and stands out by its powerful, extremely precise injection performance.

The MacroPower E Hybrid consists of a modern, servo-hydraulic 2-platen clamping unit which has been combined with an all-electric, high-performance injection unit. This has made it possible to build an extremely compact large machine with a minimal footprint, which simultaneously offers maximum precision and energy efficiency together with high injection speeds.

In the MacroPower E Hybrid, the clamping and nozzle movements are powered by a servo-hydraulic drive. Here, a highly dynamic servo motor is used instead of a three-phase motor with constant speed. The hydraulic pump used is an electrically adjustable axial piston pump with variable displacement volume, laid out to respond to the demand of the clamping unit. In this system, the delivery is controlled by the motor speed and the pivoting angle of the hydraulic pump. In this way, the optimal relationship between the pump’s degree of efficiency and the motor speed is calculated for every operating point and provided by the machine’s control system. This enables substantial energy savings compared to conventional drive systems. The ejection movement is also powered by a servo-electric drive in this machine, so that extremely precise, sensitive settings can be achieved as well as highly dynamic movements.

The injection side of the MacroPower E Hybrid features an all-electric, high-performance injection unit with injection speeds of up to 450 mm/sec. Extreme dynamism, precision and energy efficiency enable the production of high-precision plastic parts with minimal energy consumption. This makes the machine the ideal choice for molds with high numbers of cavities from the packaging and electronics sectors, as well as for thin-walled, high-precision technical parts.

At the Competence Days of the WITTMANN Group in Kottingbrunn on 24 and 25 April 2013, a MacroPower E Hybrid will be shown for the first time. It is a MacroPower E 450/2250 Hybrid producing packaging parts with a 64-cavity mold..

Source: WITTMANN BATTENFELD