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A UK based company needed a fully automatic system to feed, magnetise and load magnets into a plastic housing being assembled on a rotary table. The rare earth magnets being only 2mm square in section and 4mm long. The unmagnetised magnets were fed by a vibratory bowl feeder down an inclined chute through the magnetising coil. Each magnetising pulse would saturate 15 magnets within the coil. The magnetised magnets were then orientated and lifted through a search coil by pneumatically operated cylinders. The signal from the search coil being connected to a Hirst Integrating Fluxmeter to perform 100% testing of each magnet. The vacuum pick and place head then transferred good parts over to the plastic housing on the rotary table or dispensed reject magnets into a reject box. The control of the pneumatics, and interface with the magnetiser and Fluxmeter, were undertaken by the customers PLC. The contract value of this project was in excess of £25,000 |
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