Assembling a section of Alimast

In my last update, the final image shows a single section of Alimast standing on the concrete.  I bought four sections of Alimast from Aerial-Parts of Colchester, each being 2.5m long for a total of 10m (33ft).  These four sections were delivered with one being fully assembled and the rest being parts for me to put together myself.

Last night, armed with the twelve pages of illustrated assembly instructions I got to work.

Alimast assembly instructions

Alimast assembly instructions

The instructions suggest working off the ground at waist height and I really echo that – I started off with the sections on the floor and it because clear very quickly that it wasn’t a good idea.  I was working indoors without easy access to trestles and so I ended up using the end of a table and the top of a small pair of steps to support the mast as I worked on it.  It wasn’t perfect as it would have been easier had it been a little higher but it was much better than working on the floor.

John says that each section should take around an hour to assemble.  I reckon it took about an hour and a half to put the first section together and that didn’t include going round and tightening everything up.  I’m going to use an electric ‘driver for that as I don’t fancy tightening all those bolts by hand.

The entire procedure was very straightforward.  I don’t do much in the way of building mechanical things on this sort of scale but even I had no problem assembling the mast.  The instructions include the steps for adding rotator and bearing plates and for joining sections together.

This is what I ended up with.

The completed section of Alimast

The completed section of Alimast

I’ll build the rest of the sections over the next few days and then I’ll borrow an electric screwdriver to tighten everything up.

To find out more about Alimast and the many other parts and fittings available from Aerial-Parts of Colchester, click here.


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  1. Hello Keith, nicely done. What surprisesme is the simplicity of the design and the used materials. I don’t know if it is a special kind or treated Alu. But from what I see on your pictures it s the same material I could buy at a DIY shop. Only this is been pre-drilled and cut for your convinience. Looks nice though ! 73, Bas

  2. Hello Bas. You are correct, the design is quite simple, that’s the beauty of it !
    The material used throughout is aluminium alloy 6063T6 with an ultimate tensile strength of 241 MPa. I’ve selected this alloy because it provides an excellent combination of workability, strength and corrosion resistance. I think you would find that if you went to a DIY shop and asked what grade of alloy they were selling, they would have difficulty in providing an answer ……….

  3. Hello Keith, I just thought I asked them at the DIY shop. They quickly came with a answer. They sell 6060T6 grade Alu. So, you’re right there is a difference…
    73, Bas

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