Sonic 350, Installation And Operation Manual

Page: 4 / 26

©Copyright 2010-Sonic Air Systems Inc.
Page 4 of 26
2.
BLOWER PERFORMANCE & INTERFACES
2.1. Sonic 350 Centrifugal Blower
The Sonic 350 is a dual stage centrifugal blower. With speeds of 3500 up to 4200 RPM, the blower requires
a driving power of a 40 to 50 HP motor depending on the amount of airflow demand. The volumetric
airflow of the blower ranges between 650 to 3500 SCFM at a discharge pressure ranging between 15 to 100
in. of water. The blower drive consists of motor sprocket, blower sprocket and belt. The procedure for belt
tension adjustment is described in Section “Belt Installation and Tension Adjustment”.
Of utmost importance in the proper operation of the blower, is the correct face alignment of the blower and
motor sprockets. This alignment was performed at Sonic and should not have to be modified. The procedure
for sprocket alignment is described in Section “Belt Installation and Tension Adjustment”.
Note : The Sonic 350 is not designed for series (two stage) operation; consult Sonic engineering for
high pressure or vacuum requirements.
2.2. The Blower Features:

Belt replacement in less than 10 minutes

Belt tension adjusted with a simple jack
screw mechanism

4 different blower mounting positions

Heat of compression temperature rise up
to 75
°
F assists in airknife drying.

Permanent grease lubricated bearings for
continuous duty

Dual-stage impeller in series
configuration

Steel construction

Bracket interface for 40 and 50 HP
NEMA and IEC frames

At pressures of 3.5 psi, airknife
velocities can reach 35,000 FPM
2.3.
Air Filters
For most applications, Sonic filter-silencer assemblies are standard. The filter element is rated to 10 microns
and is offered in paper & polyester elements. Paper is low cost and is best suited where frequent cleaning is not
required. When heavy dirt loads or moisture is present, polyester elements are best, as they can be cleaned and
reused 5-6 times. The vacuum gauge reads normal (green) until the dirt load increases and the red zone reading
indicates that filter cleaning or replacement is required. Consult Sonic for HEPA Filters with 0.3 micron rating.
2.4. Airknife Systems
Sonic XE Airknife Systems are designed for each application and must be properly matched to the appropriate
Sonic Blower. When properly installed and operated, the electrical load on the motor (amp draw) is intended to
be at full load. Any adjustment of the Airknife slots should only be done with the supervision of Sonic Air or
our authorized distributor/representative.
2.5. Blower Performance
The Sonic 350 is a dual stage centrifugal blower whose performance is in accordance with fan engineering
laws. Horsepower demand increases in proportion to increased volumetric airflow (i.e. motor amperage