<div dir='auto'><div class="gmail_extra" dir="auto"><div class="gmail_quote"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><blockquote><div dir="ltr"><div style="font-family:'verdana' , sans-serif;font-size:small">Working
on a show and the designer would like to mount 2 ceiling fans,
each, onto 3 battens. He wants 96" industrial fans. I am
concerned about the battens moving with the fans and the down
pipe on the fan causing issues. The battens have to move in
and out. Thoughts?</div></div></blockquote></div></blockquote></div></div><div dir="auto">Considering the length of the battens that they would be mounted to, the torque from the fans shouldn't have all that much power to move the pipe around. If they do, you could have the pair of fans on each batten rotate in opposite directions to cancel out their forces. </div><div dir="auto"><br></div><div dir="auto">Have you priced those fans? The big ones tend to be spendy, and the designer wants 6 of them. Also, the few I've seen need to be wired to one of the manufacturer's multi-phase controllers for speed & direction. It might need some special cable runs.</div><div dir="auto"><br></div><div dir="auto">Stephen</div><div class="gmail_extra" dir="auto"></div></div>