1.5 TYPICAL APPLICATIONS
The safety light curtains of the SG series are used in all automation fields where the control and protection of the
access to dangerous areas are necessary.
In particular, they are used to stop the moving of mechanical parts in:
Automatic machines;
Machines for packaging, material handling, storing;
Weaving machines, wood working machines, ceramic working machines;
Automatic and semiautomatic assembly lines;
Automatic warehouses.
Example 1: Hand protection on moulding machine
In order to protect the light curtain against dust and humidity, the IP69K protective enclosure is used.
The aim is to prevent operator hands from being squashed during the final product stacking process. In addition,
the solution must not interfere with the manufacturing process.
Working premises are characterised by a humidity of 85% and a temperature of 25 °C.
Moreover, washing with cold high-pressure waterjets is frequent, as well as the use of alkaline detergents or acids.
Cold water rinsing jets (5 - 10 °C) are also used at a pressure of 40 bar.
Solution: IP69K protection, made of a PMMA acrylic tube with v4a stainless steel caps, offers an effective solution
without trapping dirt or contamination. The cap’s O’ring prevents water or dirt from entering the tube and at the
same time, prevents also internal condensation.
The cable connection is protected and fixed by a PG gland that prevents water or dirt from entering the tube.
Advantages: the serie SG protective enclosure (optional) ensures a reliable protection of the light curtains even in
extreme environmental conditions.
Not only does the IP69K protective enclosure meet hygiene, washing resistance, availability and safety
requirements, but also ergonomic and productivity requirements, as the protected area remains always accessible
when the machine is stopped.
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