PAUL O. ABBE, INC.
Vacuum and fluid-bed dryers include RotaCone tumble vacuum dryers,
horizontal rotary vacuum dryers, and Forberg-II fluidizing dryers.
Specializes in packaged systems including heaters and vacuum pumps, and
high temperature vacuum PET solid-state equipment.
Company manufactures a large and complete selection of dryers along
with vacuum and vacuum/pressure conveying systems. Nomad portable drying
and conveying cart systems (10 to 225 cfm) offer maximum flexibility and
efficiency and control drying and conveying of materials in a compact
Dryers range from small, energy efficient cabinet-style mini dryers
in the AD series to the large ADL and ADLG dryers that offer 3000 cfm
capacities and HiCore technology.
All dryers are designed for convenient serviceability and use
state-of-the-art controls to monitor drying. SPI and other communication
AMERICAN INTERNATIONAL ELECTRIC INC.
Offers six models of hopper dryers with even heat distribution,
accurate temperature controller, and capacities from 25 to 880 lb/hr.
Dust-collector attachment available.
Also a double-desiccant, regenerating dehumidifying dryer that
reduces moisture to -40 F dewpoint. Unit comes complete with snake
cooler and 110-1b double-insulated hopper.
Thermolift dryer and feeder unit is an independent unit that works
in fresh air, recirculating air or optionally in dry air mode. Unit can
feed two machines.
AUTOLOAD/AUTOGRIND UNIVERSAL DYNAMICS, INC.
Autodry stainless steel and aluminum, energy-efficient dryers
available with hopper sizes of 20, 40, 60, 120, 200, 400 and 800 lb.
Units have throughput rates, from 2 to 400 lb/hr. With no moving parts dryers are insulated, compact, quiet-running and modularly designed.
Drying temperatures range from 90 F to 375 E Units can also be
stand-mounted for portability.
AUXILIARY SYSTEMS GROUP
Joint venture of Novatec and Advantage Engineering supplies both
Advantage process-cooling products and Novatec drying, blending and
BRY-AIR SYSTEMS DIV. OF BRY-AIR, INC.
Resin dehumidifiers and hot-air dryers for extrusion, injection and
blow molding applications. Desiccant-rotor type dehumidifiers range from
20 to 5000 cfm and include fluted bed desiccant technology. Options
include digital dewpointers, diagnostics, central drying system,
after-cooling coils, and heaters mounted at the hopper for additional
energy savings. Larger units include natural gas regeneration and heat
recovery coils for energy efficiency. Also dehumidifying powder drying
systems in single- or multiple-batch capacities.
Mold dehumidification systems (MDS) are designed to eliminate mold
condensation during high humidity periods. Surrounding the mold
enclosure with dry, dehumidified air, MDS-3 system allows injection and
blow molders to reduce cooling cycle times up to 30%.
BAS Smart-Dry diagnostics package is standard on all FDL series
resin dryers. Package offers 7-day timer, monitors dew point, process
and regeneration temperatures, return air temperatures, process and
regeneration blowers, and alarm functions, which may affect the drying
process. Monitoring can be done at the dryer or remotely.
CACTUS MACHINERY INC.
Cactus super dryers in five sizes for processing engineering resins
to 150 lb/hr within 30 minutes of start-up. An alternative to batch-type
desiccant drying, Cactus system operates on a continuous basis. Small
amounts of resin are heated quickly to force moisture to pellet surface.
Compressed air-powered venturi creates air flow across resin to
transport surface moisture from resin. Low-wattage heater bands
reportedly reduce electrical consumption to 80% less than comparable
desiccant dryers. With no moving parts, maintenance is virtually
eliminated. Microprocessor controls maintain accurate and constant
temperature inside dryer for consistent-quality parts. Predrying is not
CANAM MANUFACTURED PRODUCTS INC.
Thermodynamic plastic dryers utilize the application of radiant
conducted heat to accelerate the drying process and are intended for use
with molding or extrusion machines processing up to 50 lb/hr of
CARRIER VIBRATING EQUIPMENT
For drying various sizes and types of pellets, offers its 12-in. x
15-ft, l-hp stainless-steel conveyor dryers with unit and hood
insulation and low profile to fit together with in-line equipment. Air
temperature and volume controlled to maintain pellet quality.
For drying PET chips in a bottle recycling process, offers
two-zone, stainless-steel, 2 x 10 ft, 2-hp, fluid-bed dryers furnished
as a system with auxiliaries, which include steam coils, noise
attenuators, dust collectors, slide gates, valves and discharge-drum
covers. Air temperatures and volumes controlled to dry chips to
specified levels and prevent melting or fusing.
CARTER-DAY INDUSTRIES (CANADA) LTD.
SpinAway centrifugal dryer for cost-effective drying of flakes or
pellets. Capacities from 100 to 110,000 lb/hr, drying to moisture levels
to less than 0.05%. Dryer has reinforced rotor-lifter-plate design for
extended rotor life. Logarithmic lifter-blade spacing in the rotor
design increases the pellet resident time, enhancing drying; and
horizontal airflow forces water and air through the screen rather than
out the pellet discharge. Unit requires minimal space, low horsepower,
and is designed for continuous, uninterrupted production. Accessories
include dewatering units, moist-air exhaust fans, air preheaters,
internal washdown spray systems, hardened rotors, pellet-free rotors,
and low-noise construction.
COMET AUTOMATION SYSTEMS, INC.
HCD honeycomb matrix dehumidifiers use the principle of a
“rotating honeycomb.” A rotor slowly turns while a cycle of
dehumidification, regeneration and cooling is repeated simultaneously.
The “wheel” has a series of air passages or channels that form
the matrix. Passages inside the wheel are coated with molecular sieves
and silica gel that are strongly bonded. When the honeycomb matrix wheel
contacts damp air, it soaks up moisture; and when the wheel is heated,
it releases the moisture. The system has a drying capacity from 50 to
CDH hot-air dryers can be used to dry most nonhygroscopic materials
and are good for hygroscopic materials as a preheater. Also designed to
dry granules directly at the machine to eliminate contamination or
reabsorption of moisture when conveying. Constructed of stainless steel,
units have only one blower and one heater and can be connected to
existing dehumidifying dryers. Size range is 15 to 200 lb/hr.
Compressed-air resin dryers use pre-dried compressed air from the
production facility’s air system, which is expanded to atmospheric
pressure. Thus the dewpoint drops to a low level and subsequent heating
of the process air reduces the relative humidity. Units are
energy-efficient and virtually maintenance-free, and are applicable for
all resins. Sizes available from one-liter micro-dryers to 152-liter
Sensi-Dry weigh dryer mounts the drying hopper onto load cells that
sense the weight of the hopper and its contents. Allen-Bradley
controller periodically polls the load cells for weight information,
determining the rate at which material is being removed from the drying
hopper. This capacity to control feed rate into the hopper virtually
eliminates material degradation by ensuring that material does not
remain in the hopper for an extended period. Sensi-Dry is also available
with Man Machine Interface (MMI). Windows-based 95/98 interface allows
operators to set and adjust parameters.
Carousel Plus dryers with throughputs from 15 to 5000 lb/hr use a
continuously rotating wheel made of a molecular sieve desiccant
impregnated into a nonwoven fiberglass substrate. As the wheel turns it
constantly brings fresh desiccant online while the rest of the wheel is
being regenerated and cooled. This approach exposes more desiccant
surface area to processing air, and helps make the dryer more reliable,
easy to operate and maintain, and more energy efficient. Dryers are
compact, weigh less and the number of major components has been cut by a
factor of 10.
SlimLine compressed-air dryers, available in five sizes from 2.5 to
50 lb/hr are designed for small-throughput, on-machine applications.
Units require no desiccant to achieve low dewpoints, and with optional
membrane filtration unit, dewpoints of -40 F can be attained.
Bringing together drying and conveying technology into one
purpose-built package for small- to medium-capacity central materials
handling, ResinWorks system integrates central drying unit, hoppers,
loaders, conveying lines and pumps, along with heaters, blowers, filters
and a proprietary microprocessor control. All components are designed to
work together and are mounted on modular sleds that are easy to
transport and easy to install. Hot-air dryers are suitable for removing
surface moisture and preheating nonhygroscopic materials at up to 250 E
Five models available to handle throughputs from 600 to 5000 lb/hr.
Conair dryers can also be configured as a mobile drying/conveyor
(MDC) with hopper, dryer and material-conveying blower, all mounted on a
mobile platform for flexibility and quick material changes.
CGT GasTrac gas-fired dryers can provide up to 70% energy savings
compared with similarly sized electric heat dryers. Efficient ceramic
fiber matrix, flameless radiant gas burners heat process (drying) air
through high efficiency heat exchangers so that combustion air never
comes in contact with process air. GasTrac gas-fired process air heater can be retrofitted to any dehumidifying dryer.
EnergySmart polymer drying system is designed for high-volume users
of PET and other materials that need to be dried in the range of 300 to
350 F (48 to 177 C) for extended periods of time (four to six hours).
Recycling hot dry air to raise the temperature of new resin entering the
drying hopper, a two-stage EnergySmart system can reduce energy
consumption by up to two-thirds, compared to conventional desiccant
Also for PET processing, six models of crystallizers with
throughput rates between 4 and 135 cu ft/hr are offered for conditioning
free-flowing PET pellets at 50 lb/cu ft, PET flake regrind at 20-25
lb/cu ft and post-consumer scrap at 30-35 lb/cu ft.
DRI-AIR INDUSTRIES, INC.
Desiccant dryers and drying systems with throughputs from 10 to 750
lb/hr. Arid-X dryer series is an industry standard dual desiccant-bed
dryer that supplies a continuous -40 F dewpoint. HP4-X series offers a
high-performance four-bed dryer that can achieve -100 F dewpoints. Both
series include automatic regeneration.
Arid-X and HP4-X series available in press-mounted,
beside-the-press and portable models with one or two hoppers. Portable
system features optional closed-loop loading system that includes single
bag filter, controls and blower integrated on a common castered floor
frame. Press-mounted hoppers are eliminated and replaced with a small,
filterless receiver. Dual-hopper systems suitable for quick material
changes and on-the-fly processing.
Off-the-press drying/blending systems for virgin, regrind and
colorants. Designed for quick changes and on-the-fly ratio changes.
Placement of augers under hoppers eliminates hoppers full of premix.
Microprocessor control features Safe-Temp regeneration (temperature
based) as well as dewpoint and time based. Built-in -40 F dewpoint
monitor and automatic seven-day timer. Also has capability for SPI
protocol for machine communication.
CA series compressed-air membrane dryers are for smaller machines
(30-1b hopper). Available in hopper banks with a single membrane and oil
filter but individual temperature control.
FASTI USA, INC.
Compressed Air Resin Dryer (CARD) is a patented new approach to
drying resins, which makes use of the inherently low dewpoint of
compressed air to produce a low-cost and low-maintenance drying system.
Because no desiccant regeneration is needed, drying air temperatures do
not fluctuate and therefore can be kept close to the optimum drying
temperature for each resin without overheating. CARDs are available ina
large range of sizes for processing from 2 to 3000 lb/hr. Systems use
heat recovered from a compressor or exhaust air from a blow molding
machine offer additional savings. Systems can be dedicated to one
machine or centralized.
FOREMOST MACHINE BUILDERS, INC.
Twin-tower dehumidifying hopper dryers in a range of drying
capacities. Design reportedly uses less electricity than conventional
units for equivalent throughput. Features include crossflow regeneration
for extremely low dewpoints with no spikes. Standard high-heat/PET
models available. Hot-air dryers for drying surface moisture off
material also available.
GALA INDUSTRIES, INC.
Centrifugal dryers to process up to 150,000 lb/hr of thermoplastics
and elastomers. Drying process takes place in three phases. In the
dewatering phase 90-95 % of water is removed by impact and gravity.
Vertical predewatering screens provide a large screen area in a small
space. In the impact phase the product is forced spirally upward from
the bottom to the top of the rotor area, reducing water content to
between 0.5-1.0%. Final phase takes place in the upper part of the rotor
area as dry air passes through the spiraling product. Surface moisture
of nil to 0.05% can be reached on most smooth, warm products. Dryers
feature stainless-steel construction, pellet-free rotors, quick cleanup,
low noise, and need only a small area for installation. Options include
agglomerate catchers, exhaust blowers, inlet and outlet inspection
windows, wear-resistant coating and heavy-duty construction for abrasive
polymers, air heaters, safety lock door systems, and pellet water tanks.
HAMILTON AVTEC INC.
Accudry dehumidifying dryers for critical drying applications, and
the 2000 series hot-air dryers for nonhygroscopic applications.
Ten models of automatic desiccant dryers use a molecular-sieve
desiccant to trap moisture within a closed drying system. Several
desiccant cartridges are provided, which are periodically indexed to a
regeneration cycle. Programmable microprocessor controls provide LCD
messages for initial settings and performance data and alarm conditions.
Hot-air dryers come with an integrated, stainless-steel-lined
drying hopper that mounts on the processing machine. Floor-mounted
models available. Seven models provide drying ranges from a few lb/hr to
more than 1000 lb/ hr, depending on material type. An air-flow regulator
balances blower cfm for drying efficiency.
Thermatrol ovens and dryers for processing needs such as annealing and curing.
Four styles of hopper dryers include a low-cost, hot-air unit for
use with nonhygroscopic materials that can serve more than one press.
Refrigerant-type dryer suitable for many hygroscopic materials.
Machine-mountable desiccant and compressed-air type dryers for
consistent low dewpoint. A variety of convection and forced air-type
drying ovens also available.
Self-contained circular fluid-bed dryer system dries resin powders,
flakes and pellets uniformly and rapidly at low cost. System
consolidates a circular fluid bed processor, heater, blower, cyclone
separator if required, and complete instrument package mounted and
assembled on a single skid. System is ready to run with onsite
connections to a power source, bag house and material inlet/outlet.
Options include adding dewatering screen ahead of the dryer, a
circular fluid bed cooler following the dryer and a product screener to
assure product quality. All are mounted as one integral system.
For resins that tend to agglomerate, the Centri-sifter centrifugal
separator can be incorporated in the system for continuous delumping of
the material. This skid mounted system offers a small footprint and can
be caster mounted to service multiple reactors or extruders.
Inherent strength of the circular processor eliminates the need for
heavy-gauge walls and welded cross braces normally required to withstand
continuous vibration, which allows vibratory motors to be downsized,
reducing cost and energy consumption. Unit also requires only one air
inlet and outlet, reducing overall size. A quick-disconnect housing
affords rapid interior access for cleaning and inspection.
Eight models range in diameters from 18 to 84 in. encompassing
batch and continuous applications from low-capacity laboratory and pilot
plant testing to high-volume processing.
Related equipment includes dewatering screeners for separating
solids from PVC, PS and PE slurries, and high-capacity pellet
classifiers for scalping and dedusting pellets at rates to 70 tons/hr.
Supplies infrared dryer/crystallizer for PET. Slowly rotating drum
with infrared lamps heats material directly. Auger coil in drum conveys
Desiccant dryer/loaders (DDL) combine loading, desiccant drying,
and automatic regeneration in one compact unit. Features a floor-mounted
control panel with functions displayed by graphics and light signals.
Residual moisture levels down to 0.02% are achieved. Units operate on
low power, have hopper-magnet shut-off slide valve, discharge valve for
easy material change, and come in nine sizes. Also DDL-HT for drying PET
bottle resins to moisture levels of 0.002%.
Mobile desiccant dryer/loaders (DDM) combine in one mobile unit the
dryer, desiccant, automatic regeneration, and automatic conveying of
dried material to process machine using predried hot air. Special
discharge fitting acts as level control on process machine hopper. DDM
can feed two process machines at the same time. Available in three sizes
with the Con-Evator three-phase hopper loader.
Desiccant central dryer (DCD) dries one or more granular materials
to less than 0.02% moisture in one or more drying hoppers using a
central power pack, which comes in six sizes. Hoppers have individual
heaters and temperature controllers, making it possible to dry different
materials at the same time.
Conti-Crystallizer (CC) designed to be a fully automatic continuous
crystallizer for amorphous PET and regrind is compact, easy to operate,
and has a built-in conveyor. Unit has PLC controls with a
touch-sensitive operations monitor that displays information in
easy-to-understand messages. Conveying hopper has a level control, which
ensures crystallization of equal amounts of raw materials in each batch.
Crystallization hopper is insulated and equipped with air distributor
and heavy-duty mixing screw that keeps material constantly moving,
ensuring no clogging or blockages. (Products distributed by V-Tech
LITTLEFORD DAY INC.
Dryers and drying systems for resin powders, pigments, pellets and
other particulates in conjunction with mixing, blending, processing and
reaction. Vertical conical Mark II processor/mixer drying systems can
handle up to 1400 cu ft/batch. Jacketed, vacuum or pressure designs
LOUIS P. BATSON INCORPORATED
Offers a series of desiccant dryers capable of drying material to
-40 F dewpoint with high efficiency blowers. Hopper sizes from 60-100 lb
with processing temperatures to 300 E
LYDON BROTHERS CORP.
Three standard electrically heated, resin-tray drying ovens include
Model 1330-1-T3, 12-tray small lab unit with average capacity of 100 lb;
Model 1330-2-T3, medium 24-tray unit with 200-1b average capacity; and
Model 1330-5-T3, 40-tray unit with capacity to 600 lb.
Standard systems include indication of temperature to 350 F, timer,
and high limit. Options to customize ovens to the process include
desiccant systems, dewpoint instruments, recorders, chillers and
filtration. Custom industrial ovens for drying, PTFE sintering, aging
and curing, preheating, decorating, annealing, and thermoforming.
MAGUIRE PRODUCTS INC.
Company’s LPD (low-pressure drying) vacuum dryer uses vacuum
to accelerate resin drying and dries materials in one-sixth the time of
a desiccant dryer. Testing has shown a reduction in energy consumption
of 70-80% because the vacuum dryer does not rely on desiccant. Other
benefits include less filters, less temperature probes, less side
channel blowers, and elimination of water coolers and dewpoint probes.
Another key benefit of vacuum drying is that the reduced drying time
reduces the risk of material degradation.
MATSUI AMERICA, INC.
DMZ2 and MJ3 series drying systems feature a desiccant rotor that
spins and regenerates continuously, constantly feeding flesh desiccant
to process. The resulting supply of stable, low dewpoint air
substantially increases dryer performance. Main benefits include short
drying times (PC in 1.5 hr), better drying performance, quicker material
changes; lifetime desiccant, which eliminates replacement, bad product
produced by wornout beds, and costly downtime; and standard high-quality
stainless-steel drying hopper, aftercooler, and microprocessor control.
Systems reportedly reduce energy consumption by 15% to 45%. MJ3 adds
portable floor flame and integral vacuum loading. All units include
solid-state relays, reducing maintenance to filter changes only.
Thercuum DPD3 (thermal conduction plus vacuum pressure) dries
resins in under an hour, cuts energy costs by 50%, reduces mold
maintenance by eliminating harmful films, and occupies up to 50% less
floor space than a conventional desiccant dryer. Design keeps resin hot
and dry until it is loaded to the press.
Plas Mini Dryer PMD micro-drying system is for throughputs under 5
lb/hr. Thermal conduction fins plus a small volume of dried compressed
air heat and dry pellets in small volumes. PMD1.5 holds 3.3 lb of resin
and PMD3.0 holds 6 lb of resin. Units use less than one cfm compressed
Thercuum vacuum drying system offers fast one-hour drying while
using 1/3 the energy of hot-air dryers. Thermal fin technology combined
with vacuum pressure aggressively pulls out moisture from pellets.
Out-gassing from some resins that can clog mold vents and ejector pins
is reduced. Mold maintenance is cut by about 50%. Hopper and press
loading is built into the Thercuum, which keeps resin hot and dry until
press loading when a gate valve opens, allowing a small amount of dried
resin to convey to the mini-hopper on the press. There are no rotating
hopper assemblies or seals.
Luxor central dryers offer advanced PLC controls with user-friendly
operator interface touchscreens. Screens include diagnostic menus and
trend graphs. Units utilize dual dessicant beds, dewpoint-controlled bed
switching and closed-loop cooldown, allowing for continuous low
dewpoints operation. Systems can operate as many as 20 drying bins.
Drying bins allow materials to be dried independently and utilize
pattented ETA technology, providing energy savings and efficiencies.
Temperatures controlled independently at each bin or centrally with
drying organizer, which offers an intelligently controlled drying
process. Under- or over-drying of resin is prevented.
FlexSide press-side dryingsystems (PLC controlled) range from
30-120 lb/hr and are modularly designed with one, two or three bins on a
portable frame. Systems can be ordered with integrated conveying.
Specialty drying systems for cleanroom molding applications, such
as CD/DVD or medical are available in both central and FlexSide
NORWELL PLASTICS, INC.
Supplies Chinese-made compressed-air dryers of stainless steel.
Insulated for up to 400 F operation. Have graphic display, programmable
Six types of resin dryers are offered by Novatec to satisfy all
drying needs. Dryer types include desiccant-wheel, membrane, infrared,
vacuum, dual-bed desiccant and hot-air. Most dryers are covered by a
NovaWheel desiccant-wheel models have throughput capacities from
100 to 5000 lb/ hr (45 to 2272 kg/hr). They save up to 30% on energy
costs and up to 65% on floor space compared to dual-bed desiccant
dryers. Initial cost savings can be as much as 25% depending on size.
NovaWheel boasts a no-slip/ no-break chain drive that guarantees uniform
desiccant-wheel rotations and uniform -40 F dewpoint. Standard
microprocessor control includes advanced features at no additional
charge, and it is field proven with over 8000 in use. NovaTouch PLC
touch-panel controller option is available on models with 600 lb/ hr
throughputs. Optional plug and play communications modules for Modem,
Modbus, Profibus and MPI are inexpensive and easily added options.
Ethernet with or without embedded web page, DeviceNet, Canbus and ASI protocols also available.
Patented NovaDrier membrane resin dryer is reportedly one of the
most popular small dryers on the market. There are six models with
throughputs from 7 to 225 lb/hr (3 to 102 kg/hr). NovaDrier reportedly
uses 1/3 to 1/2 the compressed air compared to ordinary compressed-air
dryers, even with an add-on membrane. There is no desiccant and no
moving parts to wear out; it successfully dries all kinds of resins.
Infrared rotary-drum dryer models accomplish drying and
crystallizing of PET resin and PCR in one fast operation with
throughputs up to 4000 lb/hr (1800 kg/hr). The crystallizing/drying
process takes approximately 15 minutes with reported energy savings up
to 50% over conventional desiccant crystallizing/ drying systems.
Processors also benefit from a smaller footprint, and the average height
of a complete system is under 15 ft.
Vacuum dryers have been added to the array of dryers offered. They
have throughput capacities up to 200 lb/hr (90 kg/hr) and can reportedly
reduce energy consumption by up to 70% compared to dual-bed desiccant
dryers. Drying time is 1/6 that of dual-bed dryers. These vacuum dryers
are suitable where fast changeovers are required because material
changes can be made on-the-fly.
Dual-bed desiccant dryers are still available for processors who
prefer that technology. Throughputs range 15 to 3800 lb/hr (7 to 1700
kg/hr). Electromechanical controls are standard but the NovaTouch PLC
touch-panel control is a popular option.
Portable DCS drying/conveying system processes 15 to 225 lb/hr (7
to 102 kg/hr) and utilizes company’s dual-bed or NovaDrier models.
A closed-loop, line purging conveying system supplies dried material
directly to the molding machine. Guaranteed -40 F dewpoint process-air
temperatures to 350 F.
Hot-air dryers are available as standalone units for nonhygroscopic
resins or as an integral part of a central drying system, which can be
used to dry multiple resins with the -40 F dewpoint air from a single
NovaWheel or dual-bed dryer.
Dryers toprovide a warm blanket of dry air to silos and mild areas
are also available.
Company utilizes it’s Drying Technology Lab to run comparative
dryer tests and can provide processors with specific energy usage and
drying times for tests run with the processor’s material.
PLASTIC PROCESS EQUIPMENT, INC.
BUDGET MOLDERS SUPPLY, INC.
Offers R134 refrigerant-type dehumidifying hopper dryer and
accessories. Digital temperature controller provides PID control. Blower
switch interlock keeps fan running before heater activates for safety.
Rated at 5280 Btu/ hr for drying all kinds of material. Pressurized heating chamber baffled to balance filtered air, which keeps heat coils
from overheating. Units are full-sized and give continuous air.
PROCESS CONTROL CORP.
Low-dewpoint desiccant dryers for injection and blow molders.
Offers application-related Centro centrifugal dryers and Aero
impact dryers to separate pellets from process water and reduce residual
moisture to very low levels.
Wide variety of dryer types include compressed air, compressed air
with moisture-absorbent membrane, hot air, and dessicant dryers
including large central-type dryers.
STOKES VACUUM, INC.
DIV. OF BOC EDWARDS
Line of batch vacuum dryers and ancillary equipment includes
heating systems, vapor condensers, vacuum pumps, and controls. Conical
vacuum reactors used to solid-state PET, PEN, PBT, to elevate IV levels
with working capacities to 775 cu ft. ISO 9001 certified.
SUNSPOT TOOLING SYSTEMS
Quick-Dry small-batch dryers can dry up to four materials at a
time. Expand output of existing desiccant dryers.
Line of resin dryers matched to hoppers that uniformly expose resin
to drying air includes TD series desiccant dryers in 17 models with
airflows from 6 to 2000 cfm. Units feature indexing, three-bed design
with closed process-air circuit. Design allows in-process cooldown of
the regenerated bed with recovery of residual regeneration heat and
cooldown with the dry process stream rather than with ambient air.
Optional Tech II microprocessor control has seven-day timer with battery
backup, display of operating parameters, alarms, and system-operating
H series hot-air dryers available in 11 sizes with airflows from 12
to 2000 cfm. Units heat and circulate air through the resin, removing
any surface moisture, and are for use on non-hygroscopic materials.
Often used to remove condensation from materials brought into a warm
plant from cold outdoor storage.
Also small compressed-air membrane dryers for 6 to 10 lb/hr.
UNIVERSAL DYNAMICS INC. A CO. OF MANN+HUMMEL
DHD and [PCT.sup.2] series dehumidifying hopper dryers with process
airflow up to 8000 cfm, low dewpoint to -100 F (average dewpoint -60 F).
[PCT.sup.2] dryers incorporate company’s pulse cooling technology.
Units have a minimum of moving parts; clamps provide easy and quick
access to the regeneration heater, process heater, and desiccant beds.
Designed for safety and efficiency, heater packages use tubular
elements, double-wall construction and insulation, and minimize power
consumption. Tubular heaters with low-watt density design increase
heater life. Multiple electric heater elements provide redundancy and
extend heater life. DHD series comes with a PLC controller.
Additionally, there are two expanded microprocessor controls available.
All microprocessor controls feature SPI communications protocol
capabilities, automatic temperature set back mode for idle time, digital
dewpoint monitoring, multilevel password protection and more. Most are
available with electrical power options, which range from 208 to 575 v
in 50 or 60 cycle. Hoppers range in capacity from 300 to 25,000 lb.
Gas-fired DHD and [PCT.sup.2] dryers also available.
GS series of low-dewpoint, twin-bed desiccant dryers are operator
and maintenance friendly systems with FC microprocessor control that
ensures versatility, simplicity and reliability. Dryers designed for
quick startup and quick ship. Available in four models from 30 to 150
cfm. Standard features include microprocessor controls, material saver
function and SPI communications protocol. Digital dewpoint monitor is
optional. Standard configurations include hopper mount, floor mount with
process air heater located in dryer enclosure, or floor mount with
process air heater mounted remotely on the hopper for optimum
efficiency. Dryers complement modular hoppers and combine to create
modular drying systems in a variety of configurations.
GS economical portable drying and dry-air conveying system with FC
microprocessor control allows for rapid setup and startup. Unit includes
seven-day clock and Material Saver functions. Optional dewpoint meter.
All components easily accessible, and unit can be stationary as a
beside-the-machine dryer or mounted on a flame and beam stand with its
five-wheel easy glide system for portability.
TSC drying hopper is all stainless steel, solid cone and seamless
interior for quick material change. System is also available with a dry
air conveying package using Autoload minimal inventory loaders. Drying
capacity ranges from 20 to 250 lb/hr, and drying temperatures range from
1400 F to 3500 F.
AutoDry series hopper dryers have no moving parts and are simple to
install and operate. Self-contained units with temperature ranges from
100 F to 375 F, operating at 120 and 230 volts, with hopper sizes from
20 to 800 lb. Units utilize a small amount of plant compressed air to
dry the resin.
Gas Pack retrofit kit will convert expensive electric units to
low-cost natural gas. Unit is an easy bolt-on system: Metallic burner is
designed for extended life span. Operation of the existing dryer is not
affected. Gas Packs available from 200 scfm/8kW to 4000 scfm/320kW. All
units available in standard temperature ranges from 175 F to 250 F, and
high-temperature units to 375 F.
W.Z. INTERNATIONAL PRO. INC.
Supplies a range of auxiliaries from Ningbo Huare Machinery Mfg.
Co., Ltd. in China. These include hot-air dryers with hopper capacities
of 27 to 2200 lb. Also dryer/loader packages.
Dehumidifying desiccant dryers with microprocessor controller
feature dewpoints of -40 F; electronic temperature control; process-air
filter with cyclone and cartridge; cycle rates of 8, 12, and 16/hr; no
moving parts except two four-way valves and the blowers; hopper
clean-out door and large sightglass; 20 through 4000 cfm size range with
hopper capacities to 25,000 lb; direct-drive fans; location of desiccant
inside towers and heaters outside in separate boxes; and drawer-type
process-air heaters mounted externally.
Microprocessor-based control panel, which controls and monitors all
dryer functions, available with graphic presentation. Process-air
temperature selected manually and maintained with solid-state electronic
Also hot-air dryers and preheater units for use with nonhygroscopic
materials from 85 through 4000 cfm. Units have solid-state electronic
temperature controls. Process heaters, mounted externally, are
drawer-type that slide in and out. All units are compact, accessible
from the exterior, and furnished with direct-drive fan.
THE WITTE CO., INC.
Vibrating fluid-bed, continuous dryers/coolers provide rapid drying
and/or cooling. Vibration of the dryer, coupled with the fluid-bed
design, provides a unit not sensitive to exact air flows or bed depths,
while still providing first-infirst-out flow. Other features include
ease of cleaning, negligible maintenance, and gentle handling of product
with essentially no particle degradation.
Full range of portable and central energy-efficient
microprocessor-controlled dryers including compressed-air, single- and
dual-desiccant bed and continuous-desiccant wheel type, suited for a
wide range of throughputs and materials, including bio-resins.
Drymax closed-loop dryers equipped with SmartRegen energy saving
function for optimized control with individual, electrically operated
switch-over valves for each desiccant bed avoid heat transfer between
the drying and regeneration cycle allowing for high efficiency
processing. New energy rating program helps processors calculate yearly
drying costs. Drymax features include ambient independent dewpoint to
-76 F, motorized switchover valve for operation without compressed air
lines and optimized control of drying and regeneration cycles in both
desiccant beds, energy saving counter airflow regeneration for reduced
energy costs through fastest dehumidification of the desiccant beds
during the regeneration phase, material protection function that avoids
over-drying and thermal degradation of the plastic resin through
short-term lowering of the drying temperatures during production
stoppages of processing machine, and micro particle filter in return air
for dust separation efficiency of up to 99.9% for high process safety.
Silmax insulated stainless-steel battery drying hoppers with
SmartFlow control for energy-efficient operation with fluctuating
material demands and material saver function to prevent over-drying and
thermal degradation of resin.
Portable drying conveyors (PDC) for fully integrated, closed-loop
microprocessor-controlled dry air conveying and JIT conveying.
WYSSMONT CO., INC.
Turbo-Dryer has only two moving parts: tray/ shelf assembly and fan
assembly, both rotating independently in a fixed sealed housing.
Wet feed enters the Turbo-Dryer through a feed chute in the roof of
the housing and flows onto the first shelf. Shelves are circular with
cut-out center and radial slots and are rigidly mounted on an inner
supporting frame, forming a vertical stack, which rotates slowly as a
unit. Material flows onto each shelf from the one above, forming a pile.
The rotation of the tray/shelf assembly carries the pile past a
stationary blade set to level the pile to fill the tray at a uniform
height. At the end of a revolution, the tray segment meets a second
stationary blade set to wipe the tray clean of material. Material is
held stationary by the wiper blade, while the tray continues its
rotation. It flows through the radial slot onto the shelf below where
the cycle is repeated and then progresses downward from shelf to shelf
through the dryer and is discharged through a chute in the housing
Air or other drying medium is fed to the Turbo-Dryer through a
side-mounted vertical manifold with control dampers. Air moves inside
the dryer by centrifugal fans mounted on a single vertical shaft. Fan
assembly fits into the shelf assembly, rotating independently of the
shelves. Drying medium leaves the dryer through a roof exhaust.
Turbo-Dryer housing, totally sealed, encloses and supports both
tray/shelf and fan assemblies; supports stationary parts of the dryer,
wipers and levelers; and consists of a metal flame and insulated side
panels, roof, and bottom.