Chemical Engineering August 2013 - 21

Sifter Parts & Services
FOCUS ON
Screening
Haver & Boecker
Great Western Manufacturing
Triple/S Dynamics
All screening needs are
contained in this mobile trailer
The Mobile Quality Assurance Sifter
(photo) is said to be ideal for inline
sifting on product delivery or receipt;
sifting at a trans-loading location;
silo evacuation or load-out; and emergency
situations. The self-contained
trailer includes this company's inline
sifter, which features stainless-steel
trays containing all of the interior serviceable
components (gaskets, screens
and cleaners). The screens are mechanically
stretched and bonded to the
screen trays, which can be rescreened
indefinitely. Because the tray is a
structural component, the intermediate
stainless-steel sieve rings are of
simple design, thereby eliminating
much internal structure making the
trays lightweight and easy to clean.
Hinged guards provide full access to
the sifter and drives for inspection
and maintenance. The trailer also includes
a touchscreen PLC workstation;
smooth Al interior panels, Al diamondplate
decking; hydraulic leveling legs
and controls; generator and compressor.
- Great Western Manufacturing
Co., Inc., Leavenworth, Kan.
www.gwmfg.com
Magnetic, metal-detectable
screen cleaners
This company recommends the use
of U.S. Food and Drug Admin. (FDA;
Washington, D.C.) approved polyurethane
(PU) screen-cleaning balls
(photo) and cubes to prevent sifter
screens from clogging with product.
PU balls are said to be more abrasionresistant
than screen cleaners manufactured
from other materials, and provide
a much longer life. Unlike rubber,
PU balls are non-porous and extremely
oil-, moisture- and chemical-resistant,
says the company. The addition of a
stainless-steel core to the ball and cube
make them both magnetic and metaldetectable.
PU balls range in size from
5/8- to 2-in. dia. - Sifter Parts & Services,
Inc. Wesley Chapel, Fla.
www.sifterparts.com
Reduce power, noise and more
with this fi ne-mesh screener
Unlike typical vibrating screens that
shake the entire screen box, the new
Longhorn Fine Mesh Screener moves
only the screen cloth through a vibrating
rail. Among the advantages of the
Longhorn are the following: minimal
structural vibration; low power conNote
: For more information, circle the 3-digit number
on p. 48, or use the website designation.
sumption; very low noise levels; very
low maintenance requirements; and
no screen blinding, even at very fine
mesh sizes, says the company. The
Longhorn can screen down to 325
mesh. Standard size decks (in feet) include
4  8, 5  10, 6  10 and 6 
12. Up to five decks can be configured
in series. A 5  10, three-deck unit
(photo) is available for free testing of
products at the company's laboratory.
- Triple/S Dynamics, Dallas, Tex.
www.sssdynamics.com
Screens with variable-frequency
ultrasound cleaners
This company offers ultrasonic screening
systems (photo) with innovative
frequency variation, developed in cooperation
with Artech Ultrasonic Systems.
This type of equipped screening
system provides efficient screening
that improves screen throughput, promotes
the disintegration of agglomerates,
reduces the share of oversized
material and delivers a permanent
cleaning effect for the screen, says the
company. Ultrasonic solutions can be
used for cut sizes from approximately
25 to 1,000 μm. With ultrasonic screening,
a special sound conductor is put
CHEMICAL ENGINEERING WWW.CHE.COM AUGUST 2013 21
http://www.sssdynamics.com http://www.sifterparts.com http://www.gwmfg.com http://WWW.CHE.COM
Chemical Engineering August 2013

Table of Contents for the Digital Edition of Chemical Engineering August 2013
