Alzmetall used pre-assembled readychain cable packages
from igus for the first time in the GS 800. Since the cooperation has proven successful, the GS 650 will also be equipped with readychain systems.
This choice not only reduces assembly time, but also contributes to the durability of the energy supply system. Because the chainflex cables
were specifically developed for use in energy chains: They allow small bend radii - which also permits compact installation situations - and are characterised by a long service life even under continuous movement stress. This is an important criterion for Alzmetall, because the machines are very solidly constructed. The spindle, which operates at up to 30,000 min-1
requires a total of 50 to 60 energy and signal cables - including electrical cables for servo drives, hydraulic hoses for the tool clamp, encoder and measuring system cables as well as supply cables for coolant and a compressed air supply to blow out the spindle. The readychain systems save valuable assembly time in the process.
The energy chain system of the GS 650 provides mobility in three axes. The x-axis moves separately, while the y and z axis overlap. Installation is very simple, as all three chains end in a distribution box supplied by igus. The x-axis is designed horizontally and uses the upper machine cover as a support, on which it is supported by a bridge: a design detail that saves space and ensures optimum guidance of the chain.
When developing the energy supply system for the GS 650, the project engineers benefited from the fact that a new energy chain series had just been launched on the market at that time: The E 4/4 light
is characterised by very compact external dimensions ; the chain is 20 mm narrower with the same content. It was precisely these 20 mm that ensured that the chain remained within the machine contour during all movements. And despite the compact type and tight bend radii, the chains and with them the cables move at high speed.