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Super Sonic
™
Immersion Cleaning System
With Ultrasonics
Operation and Maintenance Instructions
WARNINGS/CAUTIONS
Read all of these SAFETY INSTRUCTIONS and those
in the manual BEFORE installing or using this
equipment. Keep this manual handy for
reference/training
.
SAFETY
You will find various types of safety information on the
following pages and on the labels attached to Graymills
equipment. The following Safety Statements explain
their meaning:
The Safety Alert Symbol means:
ATTENTION! BECOME ALERT! YOUR SAFETY
IS INVOLVED!
DANGER – The DANGER Symbol means
that failure to follow this safety statement WILL
result in serious personal injury or death.
WARNING – The WARNING Symbol
means that failure to follow this safety statement
might result in serious personal injury or death.
CAUTION – The CAUTION Symbol means
failure to follow this safety statement might result
in personal injury or property damage.
NOTE – The NOTE Symbol means that failure to follow
these instructions could cause damage to the
equipment or cause it to operate improperly
.
CAUTION
Never work with equipment you feel may be unsafe.
Contact your Supervisor immediately if you feel a piece
of equipment is in an unsafe condition.
DANGER
Never use a flammable or combustible fluid in this
unit. Use only nonflammable, non-combustible, water-
based, low foaming cleaning compounds in this
machine. We recommend our low foaming Aquatene.
Contact Graymills for specific details on the formula
best suited for your application.
WARNING
Do NOT contaminate cleaning fluid with any
flammable or combustible material such as
gasoline, alcohol, mineral spirits, etc.
Drain parts to be cleaned of any flammable material or
combustible material before placing inside cleaning
tank. Even small quantities can create a dangerous fire
hazard.
Follow all directions, Warnings and Cautions for the
cleaning material being used. If any cleaning solutions
are splashed on clothing, remove wet clothing promptly
and thoroughly wash body areas that have been in
contact with the solution. Do NOT permit saturated
clothing to remain in contact with skin. Industrial
cleaners can cause irritation to some individuals.
Cleaning solutions may irritate skin and eyes. If
splashed in eyes, flush thoroughly with water. Consult
Material Safety Data Sheet (MSDS) and a physician.
®
795-91415
GM 09-07
www.graymills.com
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Always wear appropriate safety items such as gloves,
apron, safety glasses or goggles when loading or
unloading unit.
If you have any questions regarding the
correct cleaning fluids to use in this unit, call
Graymills at 773-248-6825 and ask for
Customer Service.
POWER SUPPLY, WIRING AND GROUNDING
WARNING
HIGH VOLTAGE! Install ground and wiring
according to local and National Electrical Code
requirements.
• Install a fused disconnect switch on all power
legs near the unit
• Disconnect and lockout electrical supply before
installing or servicing unit.
DANGER
Failure to permanently ground the unit and
controls before connecting to electrical power can
cause shock, burns or death.
Unit must be properly grounded to prevent electric
shock hazard. The unit should be wired to the electrical
supply by a qualified electrician. There is a grounding
attachment point in the control cabinet that is a ¼”-20
bolt with a ground symbol adjacent to it.
User must supply a GFCI for the electrical service in
areas where it is required.
DANGER
Do Not operate the unit unless the electrical
control cabinet is closed and secured. Only trained
maintenance personnel should open the electrical
control box.
WARNING
Keep pump and motor clean and free of all
contaminates. Never allow any liquids to come into
contact with motor or electrical systems as an
electric shock hazard could result.
Care should be taken to avoid clogging the air intakes
for the ultrasonic generators, located on a rack at the
back of the unit, with dust or dirt. Do NOT add any
additional screens or filters to the air intake.
Excessive ambient temperature (over 1050 F) can
permanently damage the ultrasonic generator circuits.
DESCRIPTION/SPECIFICATIONS
The immersion cleaning system described in the
following sections has been designed for a wide variety
of parts cleaning applications requiring gentle but
thorough cleaning of intricate parts. The information in
this manual will allow the operator/technician to
operate the unit to get the system’s maximum cleaning
potential.
The unit is constructed as a self-contained, all stainless
steel unit with a weir chamber and lift platform. There
are attachment points for a roller platform for parts
handling on both sides of the unit. The unit features
heated aqueous cleaning fluid and ultrasonic
generators and transducers.
Typical operation of the unit includes immersion of the
parts into the tank using the lift platform, with parts
cleaning action improved by platform agitation and use
of ultrasonics to thoroughly clean parts.
The unit has a number of features that make it easier
to use and maintain the unit, including:
• Stainless-steel, corrosion resistant tank and
exterior
• Ultrasonic Cleaning precisely controlled by a
timer
• Heated aqueous unit provides safe, non-toxic
cleaning without solvent disposal costs
• Sparger System removes surface oil and
contaminants from the surface of the cleaning
tank so parts emerge cleaner
• Sparger System works automatically to
circulate heated cleaning solution throughout
the cleaning tank to reduce downtime
• Automated lift platform for easy parts
loading/unloading
• Electronic Controls and Touch-Screen
interface for easy setup and operation
Unit Specifications
Cleaning Fluid Water and aqueous
detergent
Tank Capacity (including weir
chamber) 183 gallons
Weight of Unit (empty) 1250 pounds
Weight of Unit (with fluid) 2800 pounds (approx)
Overall Dimensions 72” H X 63” W X 55” D
Height-Floor to Tank Rim 35”
Maximum Part Height 17”
Maximum Water Temperature 180˚ F*
*
Ultrasonics will contribute to heat gain.
Materials of Construction
• Stainless Steel tank, lid, lift platform, front
cover and skin
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• Powder-coated Carbon Steel frame and rear
cover
Power Input
Pneumatic
Recommended 80 psi (70 psi min)
Electrical
230 VAC 3-Phase 36A for one bank of heaters; 54A
with optional second bank of heaters
Heater Capacity
4 kW with one heater bank
8 kW with optional second heater bank
Ultrasonic Cleaning Power
Individual Generator and Transducer
Nominal Power 1,000 watts
Peak Power 2,000 watts
Total Machine Output
Nominal Power 3,000 watts
Peak Power 6,000 watts
Lift Platform and Cleaning Space
Platform Dimensions – 37” W x 25” Deep
Immersion Depth of Platform:
- at top of oscillation stroke – 14”
- at bottom of oscillation stroke – 18”
Lift platform capacity – 300 pounds
INSTALLATION AND OPERATION
SITE PREPARATION
Before installing, careful consideration should be given
to the place of operation. Place unit on a smooth, level
surface.
CAUTION
The work area should be well ventilated.
Provide adequate lighting in the work area to permit
viewing of the cleaning process and of the floor area
around the machine. Be sure to allow adequate room
to bring work to and from the machine. Use flooring or
floor covering that does not become slippery when wet.
Provide sufficient clearance around the machine for
fluid changeovers and servicing.
Prior to changing cleaning fluid or servicing the unit,
make sure that that heating element and cleaning
solution have cooled
.
INSTALLATION
LOCATING THE MACHINE
The machine should be placed in a dry location free
from water mist or spray. The internal electronic
components can be damaged by high humidity or
water spray. When filling the machine and rinsing any
parts after ultrasonic cleaning, avoid water spray on the
any electrical components, especially the cabinet and
ultrasonic generators. If the roller platform is used to
transfer parts to a secondary process, make sure the
parts do not spill cleaning fluid on the electronic
components during transfer.
1. Adjust (4) leveling feet of the machine so that
the two beams on the bottom of the unit are
approximately one quarter inch (.25”) above
the floor. NOTE: For weir and sparger system
to work properly, unit must be level.
2. Connect an air supply of 100-150 psi, capable
of providing 2.4 CFM at 100 psi to the NPT
female fitting on air lock output.
3. Connect 3-Phase, 230 VAC electrical power,
from a dedicated branch circuit, to the
electrical control box. Connect the ground wire,
of equal or greater current rating as the power
conductors, to the ¼”-20 ground stud in the
electrical cabinet. The ground wire must have
a bonded ring terminal and be secured by a
nut and lock washer. Secure the power cable
with ground to the electrical cabinet by the
cable clamp provided. Close and secure door
to electrical cabinet.
WARNING
Do not turn on electrical power to the machine
unless main tank is full. Operating Ultrasonics
in an empty tank will destroy the transducers.
4. See Operation Section of this manual for
operation of the lid and lift platform.
5. Fill the main tank and weir chamber as follows:
a) Close ball valve between drain lines from
main Tank and weir chamber.
(Figure 1 – Valve Setting)
b) Set 3-way ball valve to permit flow from
drain hoses to pump (shown in closed
position above in Figure 1).
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(Figure 2 – Water Output)
c) Set ball valve on water filter ouput to
approximately 100% open (shown 50%
open above in Figure 2).
d) Fill main tank with water until the water
spills over from the main tank into the weir
chamber. It is recommended that the water
level in the weir chamber is 10” below the
level of water in the main tank.
e) NOTE: When tank is full of fluid and parts
are immersed in tank, the water level in
the weir chamber should be at least two
inches below the water level in the main
tank.
6. Re-adjust the (4) leveling feet of the machine
so that the surface of the water is level. To be
effective, the sparger bar should spray evenly
across the entire surface of the water. If the
unit is not level, the individual nozzles will
spray above the surface at some points, and
below the surface at others, lessening
effectiveness of the spray.
7. Reach under the bottom edge of the rear cover
and plug the three ultrasonic generators into
the three 230V outlets provided. The outlets
are on the right side of the machine as seen
from the front. It does not matter which
generator is plugged into which outlet.
8. Remove the wire from the tubing on the
skimmer drain outlet. Put free end of tubing in
a suitable container to receive any liquids
skimmed off the surface of the weir chamber.
The container must be positioned lower than
the skimmer outlet.
9. See Operation Section of this manual for setup of the functions available for performing
various cleaning cycles, heating, and skimming
tramp fluids Set-up includes setting duration
times for soaking, oscillating the lift platform,
applying ultrasonic power and sparging the
surface of the tank to remove contaminants.
Set-up also permits specifying automatic
heating and skimming cycles.
OPERATION
User Interface: The user interface controls the
machine using four switches and the touch screen
panel located on the control box on the side of the unit.
CAUTION
Maximum part height is 17”. Anything larger than
17” on the platform will collide with the lid, causing
damage to the machine.
Switch Operation:
• ON-OFF SWITCH
: To turn the unit ON, turn
the switch to the right momentarily and
release. The switch will be illuminated green
when power is ON. To turn the unit OFF, turn
the switch to the left momentarily and release.
The illumination for the switch will go off when
the unit is OFF. Turning the unit ON also
activates the touch screen and causes it to be
illuminated.
• EMERGENCY STOP SWITCH
: (E-Stop) To
stop all unit functions, press the red button in.
This will interrupt power to all controls. The
machine will turn OFF, and all heater,
ultrasonic power, sparger pump and skimmer
operation will cease. The lid will close and the
lift platform will go to the bottom of the tank. To
start up the unit, the red button must be twisted
in the direction shown by the white arrows and
the button must be released. The ON-OFF
switch must be used to restart the machine.
• START SWITCH
: To start one of the preprogrammed cleaning cycles, momentarily
press and release this green button. Choice of
cleaning cycle is done using the touch s
creen
as described below.
NOTE: Always START a cycle with the lid up
and the lift platform up. If the lid or lift platform
are not up, press and hold the RESET button.
• RESET SWITCH
: To reset the unit, press and
hold this black button. The RESET button
immediately terminates any cleaning cycle in
progress, raises the lid and raises the lift
platform. The RESET button also clears any
error messages.
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Touch Screen Operation:
TOUCH SCREEN displays information and acts as a
keypad. To operate a button on the touch screen,
push on the darkened square with your fingertip.
The various screens and the buttons on each screen
are described below (in Figure 3).
HOME SCREEN
(Figure 3)
When user turns on the unit, this is the screen that the
touch screen displays after the controls boot up. This
screen shows the following information:
• Set Temperature – Temperature which the
controller will warm the water to when the
heater function is on.
• Actual Temperature – Temperature of the
water, as measured at the temperature probe.
(Actual temperature at the water surface may
be higher.)
• Cycle Number – Cleaning cycle program
number the machine will run when the CYCLE
switch is operated.
• Cycle Run Indicator – In this position, the
words “RUNNING” or “STOPPED” are
displayed.
HOME SCREEN BUTTONS:
• SET TEMPERATURE – If user presses the
number displayed, a keypad appears. This
allows the user to enter a new set temperature.
Press ENTER (new data) or CANCEL (retain
old data) to return to the Home Screen.
• CYCLES – This button takes the user to the
screen for setting the cycle number. (Figure 4)
• TIMERS – This button takes the user to the
screen for setting the duration of various timed
machine functions. (Figure 5)
• 24/7 TIMERS – This button takes the user to
the screens for setting up the schedule for
automatic turn on and turn off of the heater and
the skimmer. (Figure 6)
• MANUAL – This button takes the user to the
screens for manually operating certain
machine functions, including opening and
closing the lid and raising and lowering the lift
platform.
CYCLE SCREEN
(Figure 4)
The CYCLE SCREEN displays the number of the
cleaning cycle currently selected and a brief description
of what that cycle does. The duration of the various
functions, which make up each cycle are set in the
TIMERS screen. (Figure 5)
Allow for 4 cycles, as described below.
Cycle 1:
“1 Lower Platform, Lower Lid”
“2 Ultrasonic Clean”
“3 Sparge Tank Surface”
“4 Raise Lid and Platform”
Cycle 2:
“1 Lower Platform, Lower Lid”
“2 Oscillate Lift Platform”
“3 Ultrasonic Clean”
“4 Sparge Tank Surface”
“5 Raise Lid and Platform”
Cycle 3:
“1 Lower Platform, Lower Lid”
“2 Oscillate Lift Platform”
“3 Ultrasonic Clean & Oscillate”
“4 Sparge Tank Surface”
“5 Raise Lid and Platform”
Cycle 4:
“1 Lower Platform, Lower lid”
“2 Soak per Timer”
“3 Ultrasonic Clean”
“4 Sparge Tank Surface”
“5 Raise Lid and Platform”
CYCLE SCREEN BUTTONS:
• ↑ and ↓ – Press the arrows to choose a higher
or lower cycle number.
• HOME – Takes the user back to the HOME
SCREEN.
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TIMERS SCREEN
(Figure 5)
The TIMERS SCREEN allows the operator the ability
to set the duration of the four functions used in the
cleaning cycles. The four functions are:
• ULTRASONICS – Sound generators
• SPARGER – Cleaning the surface
• OSCILLATION – Up and down motion
• SOAK – No motion
TIMERS SCREEN BUTTONS:
• MINUTES and SECONDS – If user presses
either the minutes or seconds for any of the
four functions, the operator is prompted to
enter a new timer value on a keypad. (Minutes
and seconds are set separately.)
• HOME – Takes the user back to the HOME
SCREEN
SETTING THE TIMERS:
(Figure 5a)
1. Press either the minutes or seconds for any of
the four functions.
2. A keypad will be displayed. (Figure 5a)
3. Enter new values and press ENTER to save.
4. Press CANCEL to retain old data and return to
the TIMERS SCREEN.
24/7 TIMERS SCREEN
(Figure 6)
The 24/7 TIMERS SCREEN allows the operator the
ability to set the hours of the day in which the skimmer
and heater operate as well as setting the current date
and time.
24/7 TIMERS SCREEN BUTTONS:
• SKIMMER 24/7 TIMERS – Takes the operator
to the skimmer settings page
• HEATER 24/7 TIMERS – Takes the operator
to the heater settings page
• SET TIME – Causes a screen to appear which
allows the operator to set the date and time.
Once set, this information is kept up to date by
an internal battery, even when power is turned
off. The time must be reset for daylight savings
time clock changes and time zone changes,
when the machine is moved.
SETTING 24/7 TIMERS:
(Figure 6a)
Skimmer and Heater 24/7 timers are set by means of
screens as described below. Screens are identical for
skimmer and heater functions, except for title at top of
screen.
First screen entered is the day-of-the-week screen.
Each day-of-the-week button takes the user to a
screen like that shown above (in Figure 6a).
The next screen entered is for setting 24/7 timer output
turn-on and turn-off times for a particular day. It has
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hour and minute buttons that call up keypads (see
Figure 5a) for entering time, based on a 24-hour clock.
EXAMPLES: 4:00 AM is 04:00
4:00 PM is 16:00
12:00 AM is 00:00 – can be used to
indicate either the beginning or end of
the day.
There is an ENABLE toggle button, which turns ON the
skimmer or heater’s 24/7 timer output at the time
shown next to “ON.” When the ENABLE button is
activated, its color turns from dark to light. When
ENABLE is not activated, nothing happens at the time
shown next to “ON.” The skimmer or heater 24/7 timer
output is always turned off at the time next to “OFF.”
BACK returns the user to the day-of-the-week screen.
24/7 TIMER SETTING EXAMPLE:
To set a 24/7 timer output to go ON at 10:00 PM on
Tuesday and OFF at 6:00 AM on Wednesday, do the
following:
1. Press the SKIMMER 24/7 TIMERS button.
2. Select TUE.
3. On the Tuesday screen, Set the ON time to
22:00 and activate the ENABLE button. Verify
that the OFF time is set to some time earlier
than 22:00, such as 21:45.
4. Select WED.
5. On the Wednesday screen, set the OFF time
to 06:00. Verify that the ON time is set to
some time later than 06:00, such as 20:30, or
deactivate the ENABLE button.
MANUAL SCREEN
The two MANUAL SCREENS have buttons for turning
ON and OFF various functions and for raising and
lowering the lid and the lift platform.
Each of the two screens has a button that takes the
user to the other screen. The HOME button, in the
lower right corner of the screen, takes the user back to
the HOME screen and turns OFF any function that was
turned ON. The HOME button does not affect the
position of the lid or the lift platform.
(Figure 7a – MANUAL OPERATION SETTINGS 1)
MANUAL OPERATION SETTINGS 1 FUNCTIONS:
• HEAT CONTINUOUS – When toggled ON, this
button causes the heater to go ON, if the water
temperature is less than the set temperature.
This will operate the heater even if the heater
24/7 timer has turned the heater OFF. When
this button is toggled OFF, the heater 24/7
timer will resume control.
• SKIM CONTINUOUS – When toggled ON, this
button causes the skimmer to go ON. This will
operate the skimmer even if the skimmer 24/7
timer has turned the skimmer OFF. When this
button is toggled OFF, the skimmer 24/7 timer
will resume control.
• SPARGER CONTINOUS – When toggled ON,
this button causes the sparger to run
continuously.
(Figure 7b – MANUAL OPERATION SETTINGS 2)
MANUAL OPERATION SETTINGS 2 FUNCTIONS:
• OSCILLATE – When toggled ON, this button
causes the lift platform to enter the oscillation
zone and to oscillate up and down. When this
button is toggled OFF, or when the HOME
button is pressed, the lift platform descends to
the bottom of its travel and oscillation stops.
• PLATFORM UP/DOWN – The operator may
raise or lower the lift PLATFORM by means of
UP and DOWN pushbuttons.
• LID UP/DOWN – The operator may raise or
lower the LID by means of UP and DOWN
pushbuttons.
NOTE: The lift platform will not go up if the lid is
down. Likewise, the lid will not go down if the lift
platform is in its fully up position.
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TROUBLESHOOTING
(Figure 8)
(Figure 9)
TROUBLESHOOTING ERROR SCREENS:
Three conditions cause the machine to display an error
screen like that shown in Figures 8 and 9. The error
screens describe what failed and give suggestions for
correcting the cause of the failure. Pressing the
RESET button clears the error screen.
Failures covered by the self-diagnostics are as follows:
1. LID LIFT FAILED – The lid did not open as
required by a cycle, MANUAL screen
command or RESET command.
2. LIFT PLATFORM FAILED TO RAISE – The
lift platform did not raise to its fully up position
as required by a cycle, MANUAL screen
command or RESET command.
3. LIFT PLATFORM FAILED TO DESCEND
COMPLETELY – The lift platform did not
descend to its fully down position as required
by a cycle or MANUAL screen command.
SELF DIAGNOSIS AND REPAIR:
The machine does not go on when the power
switch is turned to the ON position
• Verify that the branch circuit that supplies
electrical power to the machine is ON.
• Open the electrical control box and verify that
the circuit breaker is turned ON. The window
by the switch on the breaker should show the
color RED if the breaker is ON.
DANGER
230 Volt power connections are exposed
whenever the electrical control box is open.
The skimmer does not operate
• Verify that the skimmer is plugged into the 115
VAC outlet on the back of the machine.
The ultrasonic generators do not operate
• Verify that each of the three generators is
plugged into a 230 VAC single-phase outlet on
the back of the machine. The outlets are on
the right side of the machine as seen from the
front, under the bottom edge of the rear cover.
It does not matter which generator is plugged
into which outlet.
Erratic cycle behavior
• Check position of proximity switch to indicate a
lid up position on the lid cylinder. When lid is
up, the red light at x4 on the PLC inside the
control should be illuminated. Adjust switch
position until light turns on. If light never
illuminates, replace sensor.
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MAINTENANCE
WARNING
Before performing any maintenance on this unit, be
sure to disconnect electric power.
WARNING
This unit utilizes high voltage to operate the
ultrasonic transducers. Only qualified trained
personnel should attempt any repairs or servicing
of the ultrasonic components. The ultrasonic
generator utilizes high voltage, and only a qualified
electrician or service personnel should attempt to
disconnect or service the ultrasonic generators.
WARNING
Several routine maintenance procedures should be
followed to enhance the performance of the equipment
and to ensure safety and long term reliability.
Ultrasonic Generators
The ultrasonic generators have fans to cool the
electronic components. These fans may become
blocked with lint or debris that will inhibit the free flow
of air.
Periodically, the generators should be inspected and
any dirt, lint or dust buildup should be removed by
qualified service personnel.
General Cleaning
To prevent build-up of contamination on tank walls and
bottom, it is advisable to periodically drain the tank
solution and wash out the tank.
Be careful when cleaning the ultrasonic tank to not
scratch or abrade the ultrasonic radiating surface, as
this will reduce the life of the radiating surface.
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Graymills Corporation warrants that the equipment manufactured and delivered, when properly installed and
maintained, shall be free from defects in workmanship and will function as quoted in the published specification.
Graymills does not warrant process performance, nor assume any liability for equipment selection, adaptation, or
installation.
Warranty does not apply to damages or defects caused by shipping, operator carelessness, misuse, improper
application or installation, abnormal use, use of add-on-parts or equipment which damages or impairs the proper
function of the unit, and modifications made to the unit. Warranty does not apply to expendable parts needing
replacement periodically due to normal wear and tear.
A new Warranty period shall not be established for repaired or replaced materials or products. Such items shall remain
under Warranty for only the remainder of the Warranty period of the original material or product.
THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, WHETHER ORAL, WRITTEN,
EXPRESSED, IMPLIED OR STATUTORY. GRAYMILLS CORPORATION MAKES NO OTHER WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE WHICH EXCEED THE AFORESTATED OBLIGATION ARE HEREBY DISCLAIMED BY
GRAYMILLS CORPORATION AND EXCLUDED FROM THIS SALE. Graymills warranty obligations and Buyer
remedies (except to title), are solely and exclusively stated herein. In no case will Graymills be liable for
consequential damages, loss of production, or any other loss incurred due to interruption of service.
Graymills' obligation under this Warranty shall be limited to:
1. Repairing or replacing (at Graymills sole discretion) any non-conforming or defective component within
one year from the date of shipment from Graymills.
2. ULTRASONIC EQUIPMENT – On parts cleaners equipped with ultrasonics, the ultrasonic transducers are
guaranteed against cracking, depolarizing or becoming detached from the radiating surface for a period of
ten (10) years from the date of shipment from Graymills. This warranty does not cover transducer failure
that results from operating the equipment with insufficient liquid in the tank as evidenced by inspection by
Graymills.
3. Repairing or replacing (at Graymills sole discretion), components supplied by, but not manufactured by
Graymills, to the extent of the warranty given by the original manufacturer.
4. This warranty does not cover rusting of a mild-steel parts cleaner used with aqueous (water-based)
materials. On ultrasonic equipment, the finish of the stainless steel tank interior or the immersible
transducer radiating surface is excluded from this warranty as erosion of these surfaces occurs normally
during the course of operation.
Buyer must give Graymills prompt notice of any defect or failure.
If you believe you have a Warranty claim, contact Graymills at (773) 248-6825. Any return material must have an
RMA number on the outside of the package and shipping prepaid or shipment will be refused. Graymills will
promptly examine the material and determine if it is defective and within the Warranty period.
Graymills
®
3705 N. Lincoln Ave. Chicago, IL 60613
773-248-6825 1-888-GRAYMILLS
www.graymills.com ©2007 Graymills Corporation
Specifications may change without notice
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