COLLOID MILL I. O. & M
7
J
ACKETED STATOR HOUSING
Considerable heat build-up may o ccur through operation of t he m ill,
particularly at close gap settings and es pecially with thicker fluids. Because
of this, water-cool ing jackets are standard equipment on all Greerco
®
Colloid Mills. Should your process requi re it, these jackets may be used to
heat or insulate your product as well.
• Stainless steel hose barb connections are provided on the jacket.
• Not all applications require use of th e jacket and use of the jacket is
not m andatory for proper m ill opera tion. Water jacket provided
around the stator need only be used as required by your process.
P
RODUCT PROCESSING GUIDELINES
• Insure that foreign materials are not introduced into the m ixing head
of your colloi d m ill. Tram p meta l or rigid sol ids m ay severely
damage the mixing head and its components.
• When determ ining the appropriate gap setting, the m ill should be
started at a fairly open gap setting, approximately 30 on the indicator
dial. The gap should then be gradually decreased until a suitable
sample is obtained.
• Some applications will require the product to be recycled to achieve
the desired refinement; others may be processed after a single pass.
The nature of the fluid, rate of throughput and mill gap setting will all
play a part in determining the amount of processing required.
• Processing through a colloid m ill requires prior preparation of a
suitable pre-mix to prevent non-lubricated solids from settling into the
small clearances between the rotor a nd stator. A co lloid mill will not
dry gri nd. Be sure that produc t carrier phase is pre sent to
appropriately lubric ate the seals a nd wearing faces in the unit at all
times.
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