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Donaldson Company, Inc.
Designed for versatility, the WSO (Water, Smoke, and Oil)
mist collector is specifically engineered for water-based,
smoke, and oil-based mist applications. WSO mist
collector, Models WSO 20, 25-1, 25-2, and 25-3 collect
airborne mist such as oil, water-soluble, semi-synthetic
and synthetic coolant from machining operations. Two
stages of filtration, plus an optional HEPA or 95% DOP
filter, provide a cleaner, healthier work environment as
well as a more cost effective means of mist collection.
With maximum airflow capacities up to 2,000 cfm for
WSO 20 and 25-1 and 5,500 cfm for WSO 25-2 and 25-3,
the WSO is a strategic component to meeting industrial
and government air-quality standards. The high
efficiency filter cartridges allow air and coolants to be
recycled.
Designed to increase the versatility of the collector,
a variety of filter media specifically designed for mist
collection is a standard offering on the product line. The
WSO 20 contains a 20 inch tall primary filter and the
WSO 25-1, 25-2, and 25-3 contain a 25 inch tall primary
filter uniquely designed for either water-based coolants,
straight oils, or thermally-generated smoky applications.
Standard options include drain collection containers,
P-Traps, and afterfilters.
WSO models 20 and 25-1 include the blower and motor.
WSO models 25-2 and 25-3 are available with or without
a blower and motor.
Airborne mist is small droplets of metalworking fluids
suspended in the air. Metalworking fluids include
straight oils, water-soluble coolants, semi-synthetic and
synthetic coolants. These fluids perform a variety of
functions such as lubricating or cooling the part or the
tool, flushing chips away from the part, and suppressing
dust and smoke.
Mist is created two ways: mechanical action or thermal
effects. Mechanical action involves coolant used for
light lubrication and generally creates mist greater than
one micron in size. Thermal effects occur when heat
vaporizes the coolant, the vapor cools and recondenses
into a mist. Thermal effects create mist from 0.01 to 1
micron in size. Other contaminants, such as dust from
the part or the tool or smoke from the vaporization
of the oil or coolant are also generated when using
metalworking fluids.
The WSO mist collector is not designed to handle water
mist alone. There should be some type of oil content
to allow coalescing or water vapor will simply pass
through the filters. The extremes of very heavy oil and
light, thin oil should be avoided. Very heavy oil, similar
to tar consistency, will not drain while very light, thin oil,
similar to paint thinner consistency, may evaporate.
Description Purpose and Intended Use
Misuse or modification may result in severe
personal injury and/or property damage.
Do not misuse or modify.
