[TowerTalk] Kindorf and Unistrut

[Jim Thomson]

Date: Fri, 4 Jan 2019 12:26:27 -0600
From: Jim <jimw7ry at gmail.com>
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Kindorf and Unistrut

<Agreed!
<And Kindorf and Unistrut also comes in Stainless... Get out your $$ though.


<Thanks
<73
<Jim W7RY

##  at the telco I worked at for 34 years,  unistrut was eventually used  all over the offices,
+ cell sites etc.  Also used to support the  24 x 190 kg batteries. They are stacked  12 above 12.
Several strings are used on the larger offices.  It makes for a fast  install... then the entire mess is hilti 
anchored to the  concrete  floor, so it all ends up earth quake proof.  
Also used for a variety  of applications,  including supporting  real heavy  halon bottles.   I even know
one fellow, who built a spiral  staircase  out of it ! 

##  I used unistrut, as a simple way of  re-enforcing the 253 lb dahl xfmr on one of my 
19 inch wide x 29 inch deep rack cabs.   One long piece of unistrut, running the entire 
length, beneath the cab sheet metal, bolted at each extreme end.  And 2  x short pieces, 
each aprx 8+ inches long, running the width of the 19 inch cab...  dead center, below the xfmr.
The trick is however, the short pieces can only be bolted at the outboard cab sides. The inboard
side of each short piece of unistrut cant be bolted,  since the xfmr is right above the mess.  The  fix
is to use the optional unistrut option of a T shaped plate, that uses the handy dandy spring loaded
nuts!  That  thick steel  plate bonds the 3 pieces of unistrut, does not budge. On the top side,  I installed 
a huge sheet of  .25 thick Al plate, to add more strength,and to also make for  grounding points. That same
optional steel plate can also be used to bond  4 x pieces of unistrut  together.  

Unistrut makes all sorts of optional pieces for a variety of applications.  The spring loaded nuts  also come
in several different thread sizes.   We used thousands of feet of it in just one telco office alone.  Its a cheap
way to get around  problems, without having to resort to custom fabricated steel, welding etc.

Jim  VE7RF