Electric roller shutter doors are a practical landing-door solution for hydraulic freight lifts.
When the lift arrives at a floor, the roller shutter door automatically opens. Before the platform leaves, the door closes first and then the lift begins to move.
One customer wanted the door to remain closed while the lift was parked.
Rather than simply accepting the standard operation, this smart customer modified the control program himself.
He changed the current-floor button logic:
Press once → Door closes.
Press again → Door opens.
The lift platform remains stationary during this operation.
The roller shutter door operates at approximately 0.2 m/s, allowing a door slightly over 2 meters high to open in around 10 seconds.
This project demonstrates how customer experience and customized PLC programming can make hydraulic freight lifts more flexible and practical for real-world applications.
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