![](https://static.wixstatic.com/media/4b7ea2_355105cc0e19432bb6f1d0a8b7f43a22~mv2_d_2000_3000_s_2.jpg/v1/fill/w_192,h_288,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/4b7ea2_355105cc0e19432bb6f1d0a8b7f43a22~mv2_d_2000_3000_s_2.jpg)
![](https://static.wixstatic.com/media/4b7ea2_9e08d5d21f234e95826089c971e8cb22.png/v1/crop/x_2,y_2,w_2395,h_443/fill/w_967,h_179,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/4b7ea2_9e08d5d21f234e95826089c971e8cb22.png)
SERVING THE LUMBER INDUSTRY FOR OVER 50 YEARS
800-545-6379
Down Draft
Predryers
![1755 somerset predryer.jpg](https://static.wixstatic.com/media/4b7ea2_866995652dc74507bb5a3716c2f9a2de~mv2_d_9000_4163_s_4_2.jpg/v1/fill/w_147,h_68,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/4b7ea2_866995652dc74507bb5a3716c2f9a2de~mv2_d_9000_4163_s_4_2.jpg)
![6-3 12.JPG](https://static.wixstatic.com/media/4b7ea2_c19193cfcbbb442398d1befc5a3bd20e~mv2.jpg/v1/fill/w_115,h_86,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/4b7ea2_c19193cfcbbb442398d1befc5a3bd20e~mv2.jpg)
![ddp2.jpg](https://static.wixstatic.com/media/4b7ea2_54dde320d1144d8394a50a9e1408a596.jpg/v1/fill/w_109,h_109,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/4b7ea2_54dde320d1144d8394a50a9e1408a596.jpg)
![1755 somerset predryer.jpg](https://static.wixstatic.com/media/4b7ea2_866995652dc74507bb5a3716c2f9a2de~mv2_d_9000_4163_s_4_2.jpg/v1/fill/w_147,h_68,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/4b7ea2_866995652dc74507bb5a3716c2f9a2de~mv2_d_9000_4163_s_4_2.jpg)
Design / Construction
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SII's unique Fan/Heat Exchanger units are a true innovation over the traditional designs of the past. Fans move air at high velocities over coils yielding higher heat output from fin pipe as well as simplifying installaion.
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Holding capacities range from 250,000 to 1,250,000 bd. ft.
*Recommendations for building construction specifications are available for customers from SII.
Air Flow
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Flexible side and end baffles ensure that 100% of available air passes through the lumber not around or over.
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Retractable aluminum "venetian syle" baffles (1 high/ 1 low) create elevated static pressures forcing better airflow through upper packs, improving top to bottom drying consistency.
Vent / Humidification System
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Roof mounted up-blast exhaust fans with and insulated side wall intake vents are constructed of 100% aluminum for corrosion resistance.
Heating System
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Multiple zones for heat and humidity control.