The GCM rotary electric external vibrator is a special electric motor with both ends of the shaft extended and fitted with eccentric weights, the casing is made of aluminium alloy up to frame size 30 and in spheroidal graphite cast iron of high mechanical strength for all other frame sizes.
The motor is an asynchronous type and consists of a stator with a low loss magnetic core lamination. This results in high efficiency and a low running temperature for the motor.
The windings are wound to CLASS F insulation, most of the range are totally vacuum encapsulated which eliminates the need for anti-condensation heaters.
The combination of a drive shaft treated to withstand high stress and the specifically designed oversized bearings enable the units to perform continuous duty with 100% centrifugal force.
The eccentric weights are easily adjustable so that the centrifugal force can be varied on most models.
Enclosure protection to IP 66.7, CEI 70, 1, EN 60529, CENELEC HD 365 IEC529 (1989) NFC 20-10 (1986)