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Essex-based compaction specialist Wacker has produced a range of motor-in-the-head internal vibrators called IRFU. The IRFU range is available in 40, 48 and 57 mm diameters.The switch box houses an electronic invertor which enables the vibrator to operate directly on 115 V, 50 Hz, single phase supply or convert it to 200 Hz three phase supply for the necessary 12,000 vibrations a minute.The IRFU pokers are protected against all external failures switch themselves off in the event of ...

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