Efficient production of car parts counts on WITTMANN BATTENFELD

Of the 33 injection molding machines operating at Wirthwein Crimmitschau and ranging from 250 to 15,000 kN in clamping force, nine have come from WITTMANN BATTENFELD.

Since 2018, exclusively machines from the servo-hydraulic SmartPower series and the MacroPower series from WITTMANN BATTENFELD have been added. The matching parts removal robots have also come from the WITTMANN Group.

Apart from their compactness and user-friendliness, the servo-hydraulic machines from WITTMANN BATTENFELD feature intelligent, economical energy utilization.

Their high level of energy efficiency is primarily due to the combination of a fast-response, speed-controlled, air-cooled servo motor with a highly efficient constant displacement pump, known as the “Drive on Demand” system.

The machine most recently delivered is a 3-component model from the MacroPower series with 7,000 kN clamping force and enlarged clamping plates. This MacroPower XL 700/3400H/350S/210V was installed at Wirthwein Crimmitschau in February of this year.

The machine is used to manufacture a component for a car window regulator consisting of PA, TPE and POM. The machine is equipped with a W843 pro robot from WITTMANN, which removes the finished parts and deposits them on a conveyor belt.

Moreover, this machine comes with the HiQ Flow application software, which serves to detect and compensate viscosity fluctuations in the material.

A special feature of the MacroPower XL 700 installed at Wirthwein is its direct control of the mold’s index plate by way of complete integration of the mold’s servo motor in the machine’s Unilog B8 control system. This enables high-precision rotary movements of the large-sized, heavy index plate and thus ensures a very safe production process.

Great attention was also paid to the cycle time. Independent, parallel movements of the three injection units are a standard feature of the MacroPower Combimould machine.

Each injection unit has its own servo-hydraulic drive. The screw drives of the injection units are also equipped with servo motors. This enables dosing of all three aggregates parallel to the movement of the mold. So, an optimized cycle time is ensured even together with an extremely short cooling time.