| | | Italvibras produces 2 series of electric vibrators with frequency variation which can be applied to systems and machines in the precasting industry: ITV-VR Series, with variable frequency; ITVAF Series, with fixed frequency. | | The ITV-VR series electric vibrators are able to provide a centrifugal force of up to 5300 Kgf (52 kN) at a frequency varying from 0 to 6.000 rpm. The ITVAF series electric vibrators with fixed vibration (6000 or 9000 rpm) provide a vibrating energy of up to 1480 Kgf (14,6 kN). Both are available with eitherthe fixed or cradle connection. | | |
| | | Power supply Three-phase voltage from 24V to 690V at the various frequencies, depending on the type and series. It is advisable to use the Vibravar, Multivar or the CFV variable high frequency power suppliers to power the electric vibrators. Conformity to the European Directives Low Voltage 72/23/CE; Electromagnetic compatibility 89/336/CE. Reference standards EN 60034-1. Operation Continuous service (SI) at the maximum declared centrifugal force and electric power values. Centrifugal force Range extended up to 5300 kgf (52kn) with force output adjustable from 0 to 100%. Mechanical protection IP66 according to IEC 529, EN 60529; IK08 protection against impact. | | Insulation class Class F(155°C). Tropicalization Standard on all vibrators, with vacuum impregnation up to size AF 33 and 35, with "drop by drop" trickle system for larger sizes. Environmental temperature To operate correctly, from -30°C to +40°C. Vibrator heat protection With PTC rated thermistor heat detectors 130°C installed as part of the standard assembly size AF70 onwards. Also on request thermistors with different temperatures and anti-condensation heaters. In all positions and therefore without restriction. Two different types of connection are available forthe ITV-VR-S90and ITVAF-S90 series: fixed connection, where the electric vibrators are connected to the structure by bolts through fixing holes and the RS cradle connection, where the electric vibrators are connected to the structure with the standardized cradle type RS2. | | Lubrication All the electric vibrators are correctly lubricated in our factory and need no further lubrication when used. Special grease for high-speed operation is used. Periodic re-lubrication is recommended by means of special grease nipples. The excess grease is discharged into the weight compartment by means of the differentiated labyrinth system. Terminal box Generously sized to make the electrical connections easier. Special shaped terminals allow to fix the power supply cable. Electric motor Three-phase asynchronous type. Casing and bearing flange In ductile cast iron to optimize the seal and efficiency at high speeds. Bearings A special shape, exclusively designed and made for Italvibras and able to bear strong loads at high speeds. | | Motor shaft in treated steel alloy (isothermic hardering) able to withstand high stress. Eccentric weights Specially shaped lamellar type that can be easily adjusted. Weight covers In aluminium alloy treated with rust inhibitor. They are perfectly dustproof, watertight and offer optimum shock resistance in all conditions of use and workenvironments. Painting Electrostatic surface treatment based on polymerised epoxy polyester powder in oven at 200°C. Tested in salt spray for 500 hours. | | |