ITALVIBRAS
24
H
B
N
MVSI
-
E
The MVSI-E series has been designed for use in industrial
processes in environments with a potentially explosive
atmosphere, due to the presence of explosive gas and dust,
in compliance with ATEX Directive (94/9/CE).
In particular, the MVSI-E series can be used in areas 1 and 2
(gas) and in areas 21 and 22 (dusts) according to the layout
and following features:
Power supply
Three-phase voltage from 220V to 690V,
50Hz or 60Hz; suitable for use with an
inverter from 20Hz to the base frequency
with constant torque load profile tipo
PWM.
Polarity
2, 4, 6 and 8 poles.
Conformity with European Directives
ATEX 94/9/EC; Low voltage 2006/95/EC.
Reference Regulations
IEC/EN 60079-0, IEC/EN 60079-7,
IEC/EN 60079-31, EN 60034-1.
Controls
The components that affect protection are
100% accurately controlled and recorded.
Functioning
Continual service (S1) at maximum decla-
red centrifugal force and electric power.
Centrifugal force
Range extended up to 11160 Kgf. (109 KN),
adjustable in a continuous linear mode
with variation of the position of the eccen-
tric weights.
Mechanical protection
IP 66 according to IEC 529, EN 60529.
Protection against mechanical impacts
IK 08 according to IEC 68, EN 50102.
Insulation class
Class F (155°C).
Tropicalization
Standard on all vibrators, with vacuum
encapsulation up to size AF 33 and 35,
with “drop by drop” trickle system for
larger sizes.
Ambient temperature
From -20°C to +40°C, on request it is pos-
sible to have vibrators for max. ambient
temperatures of +55°C.
Vibrator thermal protection
Standard PTC rated thermistor heat detec-
tors 130°C (DIN 44081-44082) from size 70,
on request for smaller sizes. On request,
thermistors with different temperatures
and anti-condensation heaters.
Fixing of the vibrator
In all positions and therefore without
restriction.
Lubrication
All vibrators are lubricated in the factory
and do not require further lubrication if
used in normal operating conditions (“FOR
LIFE” lubrication). In heavy duty operating
conditions periodical re-lubrication may
be applied to size 35 and larger.
Terminal box
Large fixed electrical connections. Special
shaped terminals allow to fix the power
supply cable, protecting it from loose-
ning.
Electric motor
Three-phase asynchronous type. Desig-
ned for maximum starting torques and
torque curves specific to requirements of
vibrating machines. Insulated windings
using vacuum encapsulating up to size 35;
using the “drop by drop” trickle system
with class H resin for larger sizes.
The rotor is die cast aluminium.
Casing
In high-tensile aluminium alloy up to size
60, in spheroidal cast iron for larger sizes.
Patented shape that improves heat disper-
sion and lowers normal working tempe-
rature at full load. An external earthing
screw is located on the casing as prescri-
bed by Regulation IEC/EN 60079-0.
Bearing flange
Constructed in cast iron (spheroidal or
grey) or in aluminium with steel bearing
seat. The geometry of the flange transmits
the load to the casing uniformly.
Bearings
Custom made with particular geometry,
especially designed for Italvibras, suitable
to support both high radial and axial
loads.
Technical features