With classical multi-component technology, substrates are transferred from one stage to the next primarily by rotating movements. The rotating movements are usually along the machine axis and they may be alternating or continuous (cf. stack turning mold technology). It is usually only the mold inserts that are turned when using index plates – with turntable technology, however, the entire mold half moves.
Machine Components
The turntable is mounted on the moveable platen as a modular component part and is fully integrated in the machine. This allows the turntable to be used for various multi-component molds. This has cost advantages (in contrast to index platen for molds) because there is no need here for a rotation drive for each individual mold.
Rotating turntables are available with a clamping force of 40 tons to over 500 tons. The turntables are robust and thin which means that very little of the mold installation height is required. The drives can be hydraulic or fully electric (using servomotors). For a mold weight of 800 kg. mounted on the turn-table , only 0.5 sec. is needed to complete a 180º turn. Additional indexes for 90º, 120º, 240º and 270º are available.
A Solid Foundation
Turntable technology is available for the entire MAXIMA, ELEKTRA and K-TEC machine series. Our applications team can advise you on the best solutions for your production needs.
