Garage Overhead Hoist

[JoelC]

Evening all.

I've posted about this before, but I'm getting closer to actually doing this now. In short, I had my garage extended to create a workshop space, but the floor is lower than the garage, so i need a mechanism to move items from one level to the other. At most I'll be moving 650KG, but i'm unsure on the calculations, I had a go and didn't get very far (maths never was my strongpoint)

The Garage is single skinned, so there isnt much chance of using the external walls for loading.

This is what it looks like:

I thought of two ways of doing it - a 4 post frame with an overhead runner, with the hoist on a beam trolly, gives me a lot of movement, but is taller than i really want



Second option would be frame on the garage side, then fixed into the breeze support pillar at the other end. the hoise would just run up and down the middle, which is fine


I'm not sure on RSJ sizes i would need, the width is 3m and the length would be 4.5m

I've seen a few people with similar things - so i'm looking for more advice, and if anyone had a guide for the calculations, that would be helpful,

thanks in advance

 

[T0rnado69]

i would do it as the second pic... bolt the uprights to the wall

the red beam would need to be like a capital I

| |
|-----------------|
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this would run inside the u shape of the top I beam on runners.

that way you could roll it up and down the garage without it coming off.

 

[Screwdriver]

I'd have a lifting platform built into the floor.

 

[MattH]

Take a look at the size of the U Beam on this product rated at 1Ton:

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/263492807659

It should be easier to put something bigger in and be confident in it.

 

[addjunkie]

Id go with option two too. The span between the supports is the critical factor, the longer it is, the bigger the beam needs to be.
With i beams, you can increase the height for more load bearing, or the size of the middle of the I.
Your worst case scenario from a calculation perspective is your max load, in the center.

Im sure someone whos good at big sums will do it for you, failing that, email these guys and ask. They did some calcs for me, quick and decent paperwork to back it up. https://www.beamcalculation.co.uk/start-calculation/

And if you pull the roof down the insurance might ask!

 

[gaz1]

both options are not viable due to your breeze blocks been used

 

[Screwdriver]

Assuming you don't need all the extra height, make a large hydraulic lifting platform, build the floor up around it to the same level as the platform. You can also use it for general lifting purposes (it can lift a lot higher than just floor height) for working on stuff at height or just getting it up to bench height. Also you just roll stuff on and off. No lifting tackle to muck about with.

I wish I had a floor lift

 

[CompoSimmonite]

650kg isn't a lot so no need to overdo the frame. Scaffolding poles with KeeKlamps will be more than adequate.

 

[indy4x]

I've done this, went for 4 posts with channel across opposite sides and an I beam between with wheels on. I do have somewhere the Slingsby sheet which specs I beam size for various loads and spans

I did post some pictures on the forum when I made it but as usual I can't find the finished article

 

[indy4x]

Found it on the Stuff I Made Today thread

https://www.mig-welding.co.uk/forum/attachments/img_20180111_230135-jpg.129191/

 

[dobbslc]

What stops the centre beam squewing over and falling on yer nogging?

 

[indy4x]

It's there to lift not move ATM. The next project is to make mounting feet to lift the lathe to a more suitable height and the lifting frame will allow me to do this and move side to side.

Longer term the plan is to finish off connecting the gear wheels on each side so I can move it front to back safely while loaded

 

[eLuSiVeMiTe]

Just raise the floor level in the existing garage...

 

[Parm]

Just raise the floor level in the existing garage...

What an eminently sensible suggestion. All the brain power has gone into the pros and cons of various mechanical solutions

To the OP, what is the actual height difference?

 

[eLuSiVeMiTe]

What an eminently sensible suggestion. All the brain power has gone into the pros and cons of various mechanical solutions

To the OP, what is the actual height difference?

100mm judging by bricks.

 

[Parm]

100mm judging by bricks.

Dunno what the steel and fabrication will cost, but levelling the floor will give a much more user friendly space

 

[CornishPete]

I'd go with the second option too, bolt uprights to the wall. Put a concrete padstone on the top of the breeze block pillar though, or a third steel upright if you're concerned about the loading.

 

[JoelC]

What an eminently sensible suggestion. All the brain power has gone into the pros and cons of various mechanical solutions

To the OP, what is the actual height difference?

Height difference is about 1m - the picture is deceiving a little, i will see if i can get a better picture.

 

[Mattuk]

Im with screwdrivers suggestion

?

 

[T0rnado69]

at that height difference a lifting table would be a good idea.
more so if its sunk in the floor.
but that does depend on what you plan on moving from one side to the other.
big items that are bigger then the table ? no so much.

an overhead hoist would move anything upto its SWL.
but you lose wall hanging space, and roof space for lengths of whatever...