Tower D

ryersComplete Commercial Grain Drying

"Your CompleteSystems

Manufacturer."

A new era in commercial grain drying

Large wet holding garner bin is sealed to help retain grain dust and bees wings.

Stainless steel, roll formed, exterior sheeting promotes long dryer life and improved dryer appearance.

Heavy-duty overall construction results in an extra rigid struc-ture on a minimum of ground space.

Inside and outside safety ladders, cages and catwalks provide safe and easy access to all areas of the dryer.

Reducer cone equal-izes air velocity past burners for optimum combustion and pro-vides step-in access to burner assembly.

Walk-in heat section provides easy access for interior cleaning.

Recycling heat from the cooling grain results in significant fuel savings.

Walk-in cool sec-tion provides easy access to blowers and metering system.

Patented discharge sys-tem provides simple, uniform metering and quick dryer clean out.

Industrial quality components (includ-ing Maxon valves and burners) ensure years of reliable service.

12” wide grain col-umns and long grain retention times result in high quality, effi-ciently dried grain.

Patented grain turn-ers in each column ensure even drying.

In-line Maxon NPLE series burners pro-vide even heat and efficient combustion from either natu-ral gas or LP vapor (fuel oil burners are optional).

Divider hopper sepa-rates the heating and cooling sections while preventing build-up of particulate matter.

Internally mounted tubular centrifugal blowers deliver high volumetric airflow to the pressure heat and suction cool sections.

Internal mounting provides the added benefit of ultra quiet operation as the sur-rounding grain cre-ates a natural noise barrier.

PLC Control System provides the most advanced and reliable dryer control on the market.

Weather-proof NEMA IV cabinets and NEMA rated electrical compo-nents ensure safe and reliable operation in all conditions.

Discharge area

Cool, dried grain passes from the

cooling section of the dryer into

the sealed, hoppered discharge

section. Grain is gravity fed down

a 45° hopper to GSI’s patented

metering drum. This drum pro-

vides a positive, yet gentle means

of metering grain uniformly from

each column of the dryer and dis-

charging it out the center of the

dryer. The drum is driven by a vari-

able speed inverter operated AC

motor. The hopper bottom design

of the dryer eliminates trouble-

some sweep augers and sweep

arms and provides for quick dryer

clean-out.

Blower(s) anD Burners

Depending on the size of the dryer, one, three, or four indus-

trial duty blowers are used in the GSI Tower Dryer. These inter-

nally mounted, in-line mixed flow blowers are sized to operate

at slow speeds, which means low noise levels, low electrical

usage and long blower and motor life.

Airflow from the blowers is ducted across a Maxon NPLE

line burner. The burner can operate on either natural gas or LP

vapor. The burners are sized and profiled to provide even,

efficient heat distribution to the drying section of the dryer.

“The metering drum is virtually mainte-nance free. You get an even flow with no buildup and stalks are never a problem.”

Computerized operation

electronic Monitoring

GSI’s touch screen control panel

is the most advanced and reliable

dryer control system on the

market. It offers computerized

control of all dryer functions and

self diagnoses dryer problems

eliminating the guesswork

associated with traditional

controllers. The touch screen is

very simple to operate providing

instant information via a large

color display. It calculates total

dryer time, bushels per hour and

total bushels dried. Memory

features in the unit maintain a

history of past dryer operation

and a permanent service record.

Left: The first GSI Tower Dryer,

constructed in Moweaqua,

Illinois.

Above: The Electronic

touch screen control panel.

DuraBle construction…Years of reliaBilitY

The GSI control box is housed

metal NEMA IV enclosure. The win-

dowed design of the box allows

all dryer operations to be viewed

through the lockable windowed

door and also protects all control

switches, indicators, and controls.

For convenience, the control box

can be remote mounted or mount-

ed at the dryer. The control box is

totally computerized using Allen

Bradley industrial controls and com-

municates with the dryer power box

via an DH485 communication link.

Mounted in a large NEMA IV enclosure, all of the electrical power and dryer

monitoring components for the dryer are controlled by an Allen Bradley SLC con-

troller. The electrical layout and wiring of this box is MET laboratories certified,

making the box meet all U.S. and Canadian safety standards. This will provide a

long reliable control system for the dryer.

The GSI Tower Dryer’s electronic control panel indicates any malfunctions via a flashing display. This process saves valuable time in the area of trouble-shooting.

Full Color Graphical Display provides continuous visual feedback on the cur-rent dryer status as well as a convenient means of setting operating param-eters and options. Most set points and status screens are accessed by simply touching an on-screen object.

easY access

The GSI Tower Dryer was

designed with convenience in

mind. Catwalks, ladders and cages

are provided on all areas of the

dryer for easy accessibility. All

areas of the dryer can be eas-

ily accessed through up to

four entry ways. Cleanout,

inspection, and general main-

tenance are never a problem

with the GSI Tower Dryer.

custoMer service

Should you ever need ser-

vice on your GSI Tower Dryer,

GSI has a professional staff

of service technicians who

can take care of your service

needs. Also, many local GSI

dealers have been trained

in the service aspects of the

Tower Dryer, and can provide

quick, reliable service if needed.

Engineered for convenience

Above: Internal cat-

walk. Above Insets:

Heavy-duty materials

and strong structural

design provide a solid

support for ladders

and platforms. Right:

GSI customer ser-

vice representatives

can assist you with

all your Tower Dryer

needs.

cutting-eDge technologY

Grain Systems, Inc. has a reputa-

tion for engineering excellence.

The Tower Dryer exemplifies this,

with design innovation unmatched

by anyone in the industry.

The Tower Dryer design utilizes

industry proven drying principles

along with many unique fea-

tures to provide the commercial

user with a simple, reliable, fuel

efficient grain dryer. Each dryer

employs a bolt together (versus

welded) design, which permits

the wide use of galvanized steel

(versus painted steel) throughout

the dryer. In addition, all dryers

have stainless steel, roll formed

exterior sheeting as a standard

feature. These design features sim-

plify dryer erection, improve dryer

appearance and promote a long

dryer life.

The hopper bottom design used

on the dryer, including GSI’s pat-

ented metering drum, provides a

simple, efficient grain discharge

system. This system transfers grain

from the dryer uniformly and

allows for easy dryer clean-out.

The touch screen controls offer

computerized control of all dryer

functions. This “smart” system

eliminates guesswork by providing

the operator instant information

on a large backlit color display and

makes the operation of the dryer

simple.

A GSI 18’ diameter Tower Dryer

located at the grain co-op in

Monticello, Illinois.

froM the top Grain enters the dryer at the top

and falls into a self cleaning grain

receiving chamber. The chamber

creates a grain cushion, and with

grain falling on grain, helps reduce

plenum roof wear. This chamber

also provides a means of distribut-

ing grain evenly around the dryer.

The garner bin at the top of the

dryer has a full 40 inches of wet

grain storage. This area is com-

pletely sealed to help retain grain

dust and particulates.

Grain moves

down, out of the

garner area, and

enters 12” wide

grain drying col-

umns in the heat

section of the dryer.

The GSI Tower Dryer

is designed to pro-

vide the optimum

balance of grain

retention time,

airflow and temperature. Large

column holding capacities result in

long grain retention times in the

drying section of the dryer. This

long retention time, combined

The finest material, superbly constructed.

Left: The wet

grain storage

area and self-

cleaning grain

receiving cham-

ber at the top of

the dryer. Right:

The internal

temperature sen-

sors. Below left:

Reducer cone

and inline burner

before installa-

tion. Below right:

GSI’s patented

grain turners

Opposite below:

View of the per-

forated dryer

walls.

“Before we received the GSI Tower Dryer we were concerned about it being too high tech and complicated. We didn’t know what to expect, but we found out it’s very easy to start and run.”

with low drying airflows and tem-

peratures result in high quality,

efficiently dried grain.

Midway down the heat section

of the dryer are GSI’s patented

grain turners. The turners invert

the grain from the inside of the

grain column to the outside for

more uniformly dried grain.

GSI tower dryers are designed

to retain bees wings and particu-

late matter within the drying col-

umns. The largest standard hole

size on the exterior screening of

the dryer is 0.078 inch diameter

perforation. After the grain is

turned, the perforation size drops

to a diameter of 0.0625 inches.

Solid non-perforated exterior

sheets are used at the grain turn-

ers and at the top and bottom of

the grain columns to help ensure

that particulates are not expelled

from the dryer.

As grain exits the heat section

of the dryer it enters the suction

cooling section. Air used to cool

the grain is recycled through the

blower(s) resulting in significant

energy savings.

A GSI 24’ diameter Tower Dryer

located in Lis, Illinois.

The landscape of agricultural architecture

Above: Inline burners. Below:

The Maxon safety valves.

Opposite: Tower Dryer under

construction.

gsi tower DrYer specifications

Models 1200 1500 1800 2000 2400 2500 3000 3500 4000 4718 5000 6000 7000 10,000

Drying CFM 60,500 77,100 81,800 98,600 108,300 121,950 145,200 175,800 192,750 213,600 282,000 304,800 337,500 500,00

Cooling CFM 30,250 38,550 40,900 49,300 54,150 60,975 72,600 87,900 96,375 106,800 141,000 152,400 168,750 250,000

Blower HP 60 75 75 100 100 3-40 3-50 3-60 3-75 3-75 3-100 3-100 3-125 4-125

Burner Capacity (mBtu) 13,068 16,654 17,669 21,298 23,393 26,341 31,363 37,973 41,634 46,138 60,192 65,837 72,900 108,000

Average HeatUse (mBtu) 7,514 9,576 10,160 12,246 13,451 15,146 18,034 21,834 23,940 26,529 35,024 37,856 41,918 62,100

Grain Column 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4” 12-3/4”

Tower Diameter 12’ 12’ 12’ 12’ 12’ 18’ 18’ 18’ 18’ 18’ 24’ 24’ 24’ 30’

Overall Height 52’-1” 58’-9” 68’-9” 75’-5” 85’-5” 66’-11” 76’-11” 86’-11” 96’-11” 110’-3” 101'-6” 111'-6” 121’-6” 132’-11”

Heat Holding (bu) 719 914 1158 1256 1499 1511 1813 2210 2512 2964 3940 4323 4528 6030

Cool Holding (bu) 305 305 354 451 500 529 680 737 888 1038 1074 1100 1305 1846

Total ColumnHolding (bu) 1024 1219 1512 1707 1999 2040 2493 2946 3400 4002 5014 5423 5833 7876

Total DryerHolding (bu) 1427 1622 1915 2110 2401 2977 3430 3883 4337 4939 6703 7112 7522 10,531

BPH Capacity(20%-15%) 1200 1500 1800 2000 2400 2500 3000 3500 4000 4700 5000 6000 7000 10,000

BPH Capacity(25%-15%) 720 900 1080 1200 1440 1500 1800 2100 2400 2820 3000 3600 4200 6000

superior workManship

Standard operational features

on the dryer include double

Maxon gas blocking valves on the

gas train, exhaust air temperature

sensors, plenum high temperature

limits, grain level monitoring,

continuous flame monitoring,

airflow monitoring and motor

overload monitoring.

We take pride in the

design and workmanship that

goes into the Tower Dryer,

and stand behind it with a

one full year parts and labor

warranty, one of the best

warranties in the industry.

1004 East Illinois Street · Assumption, Illinois 62510Ph: 217-226-4421 · Fax: 800-800-5329 · Int’l Tel: 1-217-226-4401 · Int’l Fax:1- 217-226-3404

www.gsiag.com · E-mail: gsisales@gsiag.com

GS-10 Dec 2007

Copyright © 2007 GSI Group. All rights reserved.

coMMercial Bins

•Upto105’(32m)diameter

•Grainholdingcapacitiesexceeding

710,000bushels(18,039MT).

•“Wideflange”steelbeamroof

supportsystem.

•Aerationsystemswithmanyfloor

designoptions.

stackeD DrYer

•Capacitiesupto4000BPH.(101MT/H).

•Dryerunitsstackforfutureexpansion.

•Heatreclaimeroptionforupto30%

fuelsavings.

Grain Systems

coMMercial hopper tanks

•15’-36’(4.57m-10.97m)diameters.

•Holdingcapacitiesupto50,000Bu.

(1270MT).

•Allgalvanizedhopperswithseveralslope

options.

•Customizedsystemsandseismicdesigns.

Look for this other

fine equipment

from your

complete systems

manufacturer.

Material hanDling

•En-MasseConveyorswithcapacitiesfrom

1000BPHto40,000BPH.(25to1000MT).

•EnclosedBeltConveyorswithcapacitiesfrom

8000BPHto57,000BPH(200to1425MT).

•BucketElevatorswithcapacitiesfrom

1000BPHto60,000BPH.(25to1524MT).

top DrY

•Dryingupto2000BPH.(51MT/H)

withstorageholdingupto

29,000Bu.(736MT).

THIS PRODUCT IS PROTECTED UNDER ONE OR MORE OF THE FOLLOWING U.S. PATENTS

6233843, 6189235, 6141886, 6101742, 6098305 6088929, 6076276, 6073367, 6073364, 5570521 6457256, 6035544, 5860221, 5653043, 5651193 5604996, 5566470, 5400525