
INSTALLATION
MOUNTING
The CIMCOOL Mix Master II is de-
signed to be installed in the bung open-
ing (either two inch (5.0 cm) or ¾ inch
(1.9 cm)) of a 55 gallon (200 L) fluid
concentrate drum. Alternately, the
proportioner can be mounted on a wall.
The CIMCOOL Mix Master II has a
bung swivel connector that makes it
unnecessary to remove the tap water
supply hose when changing from an
empty to a full drum.
Two ¼ inch (.6 cm) holes are provided
on the proportioner retaining bracket
for wall mounting. The 2 inch (5.0 cm)
bung connector must be removed to
mount the proportioner to the wall.
For proportioner installation:
1. Remove either the two inch (5.0
cm) or ¾ inch (1.9 cm) bung from
the upright drum.
2. Insert the foot valve/siphon hose
into the bung opening.
3. When mounting on a drum, tighten
the bung swivel connector (turn
clockwise to the drum).
4. Install a water line (½ inch (1.3 cm)
I.D.) to the proportioner. The
proportioner has a ¾ inch (1.9 cm)
female garden hose fitting water
supply connection.
5. Select and insert the proper meter-
ing tip to use with the proportioner.
Thread the metering tip into the
orifice retainer by hand. Do not
over-tighten.
MIX RATIOS
The CIMCOOL Mix Master II is a ven-
turi type proportioner which depends
on water prsesure and a metering tip
to obtain a particular mix ratio.
One set of color-coded plastic meter-
ing tips is enclosed with each unit.
Please refer to Table 1 for Tip Identifi-
cation Chart.
Contact CIMCOOL Technical Service
(513-458-8199) for selecting the proper
metering tip to obtain the recom-
mended metalworking fluid concentra-
tion. The mix ratios were obtained at a
flow pressure of 40 psig (275 KPa).
Checking the actual mix ratio or con-
centration obtained at startup with a
refractometer or titration kit is recom-
mended.
Variation in fluid temperatures and
water pressures will have a slight af-
fect on the mix ratio. These variations
can be minimized by
1. Installing a pressure regulator on
the water line (remembering that
the minimum water pressure is 15
psig (101 KPa) to operate the
proportioner).
2. Using the fluid concentrate at room
temperature.
Please be aware that changing the dis-
charge hose length will affect the mix
ratio. The discharge hose must have
an open or gravity discharge and the
flooding ring must be installed in the
discharge hose for proper operation of
the proportioner.
MAINTENANCE
The CIMCOOL Mix Master II Propor-
tioner features simple operation and
low maintenance. With few moving
parts there is little to wear out. How-
ever, it is recommended that the ven-
turi assembly and metering tip area are
inspected periodically to insure that no
SALES
The CIMCOOL Mix Master II Propor-
tioner item number is EQ02549. Use
this part number when placing an
order with your Milacron Industrial Dis-
tributor.
SERVICE
For additional information contact:
your Milacron Industrial Distributor
or Milacron Customer Service:
888-246-2665
SPARE PARTS
Spare parts are available from your
Milacron Industrial Distributor.
(See Figure 2).
residue is forming on the unit. If a resi-
due or scale is forming (most likely due
to hard water reacting with the prod-
uct), cleaning with warm water and a
cleaning fluid designed to remove scale
is recommended. As the tubing shows
signs of deterioration, replacement is
recommended.
TROUBLESHOOTING
PROBLEM
1. Unable to obtain proper mix ratio X X X X X X
2. Mix ratio varies X X
3. Proportioner leaks X X
4. Water enters concentrate drum X X X
5. Scale forms on venturi or metering tip X
6. Unable to obtain water flow X
(1) Install pressure regulator to minimize changes in tap pressure. Minimum
flow pressure to be 15 psig (101 KPa).
CORRECTIVE ACTION
Check water pressure (1)
Check metering tip (Table 1)
Check foot valve/strainer
Check discharge hose/flooding ring
Check fluid temperature
Check venturi/metering tip for residue or scale
Inspect/tighten water hose fitting and on/off ball valve
Clean/replace gasket on vacuum breaker
Clean with warm cleaning fluid (consider use of deionized water)
Clean inlet strainer
TABLE 1: TIP IDENTIFICATION CHART
COLOR ORIFICE DIAMETER DRILL SIZE
Gray .128 30
Black .098 40
Light Brown/Beige .070 50
Red .052 55
White .043 57
Blue .040 60
Medium Brown/Tan .035 65
Green .028 70
Orange .025 72
Dark Brown .023 74
Yellow .020 76
Purple .014 79
Pink .010 87
Clear Your Choice (No Hole)