Manipulators Replace Robots on French Assembly Lines
French carmakers have invested in operator-assisted material handling equipment since the 1990s. "When workers no longer have to contort themselves to make a weld on the hidden part of a door, less rewelding is required at the end of the line," says Marc Haury, health and safety manager at the Peugeot factory in Mulhouse, France.
Peugeot uses pneumatic manipulators from Sapelem (Angers, France) to lift and move loads of up to 660 pounds. Each manipulator is equipped with electronic balance control, so the operator supports only a few pounds. When the load is raised, it is automatically weighed, and a microcontroller adjusts the pneumatic pressure accordingly. In certain cases, it can be mounted on a rail to extend its range.