How To: Mobile Gantry Crane Fabrication to Fill an Outdoors Lifting Gap

[maple_leaf_eh]

Looks like you had fun with the tools making something that will be practical.

[Mike K]

Quite a bit of thought went into that . You should have been a structural engineer. How on earth did you get the trailer A frame up so high .

[Lionelgee]

Originally Posted by Mike Kelly

Quite a bit of thought went into that . You should have been a structural engineer. How on earth did you get the trailer A frame up so high .

Hello Mike,

In one of the photographs up high you will see a red oblong. This is a snatch block and I ran a rope through it to lift up the towing A-frame until it reached the top run of pallet rails. I then used the no-hook style of ratchet strap to secure the base of the A-frame to the side of the pallet rack's frame. With this pivot point fixed I just rotated the receiver end up until the towing A-frame was leaning against the pallet frame. I had positioned two lengths of 50 mm square hollow section (shs) that acted as horizontal rails that I used two cyclone bolts and two lengths of 40 mm x 8 mm steel plate. This combination formed a set of clamps. Two sets of clamps per shs rail and the pallet frame. Then two sets of the same type of clamp to fixing the towing A-frame to the shs. I did not want the A-frame to move! Especially, since it would all come tumbling down on my head.

Yesterday, I dismantled the whole pallet racking tower. There is nothing there now but empty space. I liked seeing the tower. However, I was under instruction to remove an 'eyesore' from so close to the house.

Kind regards
Lionel

[Lionelgee]

Hello Mike and All,

Here are some photographs of the clamps that I used to secure everything. The clamps are waiting for their next job.

The more eagle-eyed will work out that the square hollow section is 64 mm wide. I used this width for the 'sleeves' that fit over the brace between the I-beam and the mobile gantry crane's A-frame sides.

Kind regards
Lionel