The image above already shows that these tandem lift tables are real heavyweights. Not only the stable construction is impressive, but so also the effortless handling of heavy loads – even if they are loaded off-centre ...
Place of use
The tandem lift tables are used in a stamping plant of an automotive supplier. The beauty of these platforms? They work in a closed-off area and can therefore operate fully automatically. This means that a sensor cycle control ensures that the lift table is always in the correct position to transfer the sheet metal from the punching machine to the platform and vice versa.
Moreover, the two scissor lift tables are team players.
While one lift table is located on the entry side of the stamping line and is loaded with the blank metal sheets, the second lift table at the end of the stamping line waits for the finished sheet metal parts.
Special features
Greasable bearings
As both lift tables are moved within a fully automated system with high cycle rates, they are fitted with bearings that can be greased. This ensures low bearing wear, even when subjected to high loads. After all, one does not want to risk the stamping line coming to a standstill because of the tandem lift tables.
Potential-free contacts
The actual communication between our lift tables and the on-site stamping line is done by means of potential-free contacts. This means that our control system signals the higher-level control system that the desired transfer position has been reached. Of course, the lift table controller also signals that the end position has been reached, so that either a new sheet can be fed or the finished components can be removed.
Static flow divider
Asymmetrical loading of the finished stamped components in particular cannot be excluded. For this reason, we have installed a static flow divider in the hydraulic system of the lift tables. This guarantees the absolute synchronisation of the two scissor packs, even when the load is placed off-centre. The flow divider used functions purely mechanically and does not require any complex control and regulation technology.
