Calculated Industries 44060 CONSTRUCTION MASTER PRO DT Specifications download pdf (Page 140)

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TEL: 1-800-645-4174 • Fax: 1-800-424-2082 • www.royalprod.com

EFFICIENCY

1. The first phase utilizes the mechanical process of centrifugal

impaction. This centrifugal impaction process is the heart of the

Filtermist’s operating principle and it is highly effective at handling

large volumes of mist.

The centrifugal impaction process is

almost 100% efficient at

handling particles larger than one micron,

which make up the

bulk of the mist. When considering a weighted average of the particle

size in a typical metalworking mist concentration, overall efficiency of

the impaction process is roughly 98%.

2. Many may consider an efficiency of 98% to be adequate for their

needs. However, if additional efficiency is required, the Royal

Filtermist FX Series units may be equipped with an after filter to

handle the small amount of residual mist that bypasses the impaction

process. Royal after filters use a carefully selected grade of media

that provides an effective balance between being

fine enough to

capture the smallest of particles

while still allowing the filter to

enjoy a comparatively long service life. Overall efficiency of a

Royal Filtermist FX Series unit equipped with an after filter

exceeds 99.5%.

In a recent test carried out by an independent contractor, a

Mori Seiki SL75ML was fitted with a model FX-1200 Filtermist unit and

after filter. Particle counters were set up to monitor the air at three

locations during machining — the ambient shop air, the Filtermist intake,

and the Filtermist exhaust. The test results confirm that the Filtermist

easily meets the challenge. Particle concentration levels at the Filtermist

exhaust were well below 0.5 mg/m3. In fact, the air at

the Filtermist

exhaust was four-times cleaner than the ambient shop air!

When evaluating the effectiveness of any mist collection system, two major aspects must be considered:

q The unit must be capable of handling the full volume of mist produced by the application.

q The unit must be efficient at capturing particles of all sizes.

Independent testing has proven the Royal Filtermist FX Series to be very effective at handling large volumes of mist and highly efficient at dealing with

the full spectrum of particle sizes found in typical metalworking mist concentrations.

While a typical metalworking mist concentration is made up of many different-sized particles, 80–90% of these particles are larger than one micron in

size. Fewer than 10% of the particles are smaller than 0.5 micron in size.

In order to effectively eliminate mist, the Royal Filtermist incorporates a two-phase process:

The OSHA and NIOSH limits on airborne mist particles are currently set at 5mg/m3. It is believed that in the coming years this level will be reduced by a

factor of ten to a new level of 0.5 mg/m3. The Royal Filtermist FX is so efficient that when equipped with an after filter, it easily meets not only the

current limit, but even the stricter proposed limit.

LOCATION CONCENTRATION (mg / m3)

Ambient Shop Air 0.75

FX-1200 Inlet 8.0 – 10.0

FX-1200 Exhaust 0.18

OSHA and NIOSH Standards

IMPORTANT — The Royal Filtermist is designed to help your shop meet current and future air quality standards. It

must be understood, however, that there are many variables involved in controlling shop pollution and we cannot

guarantee that the Filtermist alone will prevent occupational diseases to workers. It is your responsibility to establish an

effective overall industrial hygiene program designed to comply with OSHA and NIOSH standards. If you have any

questions regarding this issue, please contact us at 1-800-645-4174.

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Calculated Industries 44060 CONSTRUCTION MASTER PRO DT Specifications Page 140

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