Magnetic Gripper EGM
SCHUNK Inc. Posted 05/23/2013
The Magnetic Gripper EGM from SCHUNK maintains high holding forces even in confined work spaces. It is light-weight, yet powerful enough to handle difficult applications even in situations which may require an emergency stop. It also promotes energy efficiency because electricity is only needed for magnetization and demagnetization of the unit.
This system is able to lift different types of ferrous items (plates, sheets, round bars, pipes, etc.) by using a permanent electro magnetic field. The magnetic action of the product may be activated and deactivated by using a switch or digital input, which automatically alters the product's internal magnetic state.
During the operation phase, when the magnetic force is active, the product is permanently magnetized so that nothing can alter its state except for a demagnetization electrical pulse. For example: When a permanent-electro product is magnetised, it can be held this way indefinatly, even if the power is disconnected and the cables are unplugged. In order to demagnetize it, simply connect the power again and send a demagnetization pulse. This saves electricity and ensures there is no danger of parts being dropped in the event of a power failure.
The EGM can handle alternating between different workpieces with minimal set-up time and without the constricting contours of gripper fingers. Due to the variable number of magnet pole pairs, optimum adaption to individual applications is ensured.