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Twin City Fan & Blower

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Motor Positioners – Vertical Jack Screws
(Motor feet are drilled & tapped) Vertical jack screws (red) are removed after the motor is shimmed.

Shaft Cooler
Cast aluminum shaft coolers dissipate the heat transferred to the shaft from the airstream protecting
the fan bearings. Recommended for applications over 300°F. Bore size is needed if ordered as just a
stand-alone part.

Slide Gate Damper (Cast Aluminum Pressure Blowers)
Dampers feature cast aluminum frame with galvanized steel gate. Available on inlet or outlet. Slide
gate type dampers provide manual adjustment of airflow and flexibility to meet any application.

Spark Resistant Construction – Type B

Spark Resistant Construction – Type C
Type C offers a minimal level of spark resistance and only requires that possible contact between
stationary and rotating components be reduced. Typically, this construction includes the use of an
aluminum inlet cone and an aluminum rub ring. The aluminum inlet cone will be the first point of fan
wheel contact if there is a mechanical failure. The aluminum rub ring placed at the opening of the
housing where the shaft passes, protects against contact of the steel fan shaft and steel fan housing.

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