Cutting edge design and development is the driving force behind SMJ in the
continuing effort to provide clean air to the tunneling industry.

High efficiency, mine and tunnel duty construction and virtually maintenance
free make these products ideal for the tunneling industry. With single and
two stage fans ranging between 300mm and 4.6 meter and high pressure
contra-rotating, two to four stage fans, which range between 300mm and
1600mm.

All units can be driven either electrically, pneumatically or hydraulically
and can be constructed with direct, belt or shaft drive configurations.

High performance scrubber systems [range] remove the harmful airborne
particulates quartz, cristobalite and tridymite. These innovative scrubber
systems have an extremely small footprint yet have a higher efficiency of
dust removal compared to much larger systems.

Round and oval cassette systems make the arduous task of duct payout
virtually effortless. These cassettes are built to accommodate duct sizes of
300 mm to 2134 mm and have a capacity of 100 to 150 meters of duct.

Newly designed and tested silencers provide a much needed reduction in the
noise produced by high pressure fans.

Custom designed and built systems are available for any application.