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MVSI
The MVSI series represents the line of reference products for
manufacturer’s of vibrating machines and plants operating in
many industrial sectors and is made up of the largest range
on the market, with centrifugal force values up to 30500 Kgf
(300kN).
The MVSI series has been conceived to guarantee higher
performance in all conditions and environments and complies
with the most recent IEC and EN international standards for
use in atmospheres with potentially explosive powders.
In particular, the MVSI series can be used in areas 21 and 22.
Technical features
Power supply
Three-phase voltage from 24V to 690V,
50Hz or 60Hz or single-phase 100-130V,
60Hz and 200-240V, 50Hz (single-phase
types are supplied without capacitor); sui-
table for use with an inverter from 20Hz to
the base frequency with constant torque
load profile.
Polarity
2, 4, 6 and 8 standard poles, 10 and 12
poles on request.
Conformity with European Directives
Low voltage 2006/95/EC; ATEX 94/9/EC.
Reference Regulations
EN 60034-1, IEC/EN 61241-0, IEC/EN 61241-1.
Functioning
Continual service (S1) at maximum decla-
red centrifugal force and electric power.
Intermittent services are also possible
depending on the type of vibrator and the
operating conditions. For detailed infor-
mation, contact our technical assistance
office.
Centrifugal force
Range extended up to 30500 Kgf. (300 kN),
with centrifugal force adjustable from 0
to 100%.
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), class H (180°C) on request.
Tropicalization
Standard on all vibrators, with vacuum
encapsulation up to gr. AF 33 and 35, with
“drop by drop” trickle system for larger
sizes.
Ambient temperature
From -20°C to +40°C. Versions for higher
or lower temperatures are available on
request.
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
dispersion and lowers normal working
temperature at full load.
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.