Prefabricated Withering Troughs

Prefabricated Withering Troughs

In the late seventies there was revolutionary change in the process of withering. Natural withering was replaced by forced Air devices. Such a device consisted of one axial flow fan, ducting with air controlling damper and a long tunnel covered with wire mesh. In total the piece was called a Withering Trough.

DESIGN:

The axial flow fans 36″ to 56″ diameter are popularly in use. According to its air delivery measured in C.F.M. The standard length of the tunnel (trough) is made – generally 60′ to 100′ long.

Our prefabricated In standard Withering Troughs the Axial fan which is inscribed in a steel-casing and the ducting is fabricated out of steel plates but the material used for making the trough is either bricks & cement or timber & plywood, in different tea growing areas.

Here, the materials used are mild steel angles & galvanised iron sheets. The whole trough is prefabricated in the workshop and delivered to the site for erection. Each unit can be assembled and made ready to use in a couple of hours.

Technical Data & Standard Sizes:

• 48″ Fan/7.5 H.P. 6′ x 90 RFT. trough
• 48″ Fan/   5 H.P. 6′ x 80 RFT trough
• 40″ Fan/   5 H.P. 6′ x 70 RFT trough
• 36″ Fan/   3 H.P. 6′ x 60 RFT  trough
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