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Technical Increasing clearance on a four post lift.....anybody do it?

Discussion in 'The Hokey Ass Message Board' started by hotrodA, Jul 18, 2019.

  1. clem
    Joined: Dec 20, 2006
    Posts: 2,431

    clem
    Member

    Ray,
    Don’t apologise, the more comments that say the same thing will hopefully impact in the right way. - which was why I commented on your post.
    Clemens
     
    Hnstray and Unique Rustorations like this.
  2. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 308

    ekimneirbo
    Member
    from Brooks Ky

    Ray, I'm sure your idea will work fine, but it requires the builder to buy two different kinds of material and then cut them to size and shape. It somewhat mirrors my first suggestion before I realized that the footplates were a foot square. Its hard to come up with steel plates of sufficient thickness and cutting them to size isn't real easy unless you own a plasma cutter. Not to likely to find four 6" long or one 24" long box tube, so will probably end up paying for a longer length of box tube and additional 3/8" or 1/2" steel plate. What is simple to assemble may prove much more expensive to procure.
    I don't think you could get much cheaper than one piece of off fall box tubing 6" x 10 ft or so. Cut it into four 1' and six 8" pieces. Weld them into a square with a cross brace to give support directly under the post. Can't get much simpler than that and keeping the surfaces parallel will be much easier. No disrespect meant, just a different point of view about whats cheapest and easiest. Everything can be cut with a simple chop saw. I wouldn't miter cut, I'd just use straight cuts with two different lengths. Should be able to cut them and weld them in less than an hour.
     
  3. tb33anda3rd
    Joined: Oct 8, 2010
    Posts: 15,115

    tb33anda3rd
    ALLIANCE MEMBER
    1. Connecticut HAMB'ers

    cheapest and easiest is why I suggested wood blocks. we are only talking about raising it a foot higher correct? a chunk of timber 1' x1'x1' with the grain running horizontal to the floor lagged to the post would work fine. the chart I posted rated a 6x6 at over 50,000 lbs. 4 of which stacked and criss crossed would give only 11". it would be real hard to crush it.
    wood seems frail compared to steel, but look around at what it is doing around you.
     
    Hnstray likes this.
  4. seb fontana
    Joined: Sep 1, 2005
    Posts: 5,901

    seb fontana
    Member
    from ct

    Wood cribbing holding buildings/structures up for moving or repair is prime example..
     
    tb33anda3rd likes this.
  5. You could always dig the floor out ... like a one foot deep pool ... with an entering concrete ramp. About a car size worth. Haha. :)

    Sorry. Just waiting on the finale'. Can't help myself. :cool: Carry on !
     
    tb33anda3rd likes this.
  6. clem
    Joined: Dec 20, 2006
    Posts: 2,431

    clem
    Member

    Whats that ?
    Suggesting letting the air out of the tires...........and leaving the hoist as is.:D
     
    kidcampbell71 likes this.
  7. .

    Very Interesting !. Only need minimum 4" height increase. I do have some seasoned oak in 6"x 6". With that capacity, two 12" lengths, bolted together through the cross section with all thread and sheeted top and bottom with plywood would give me a 12x12x6 riser. Bingo!Sounds like a plan. Thanks, everyone!
     
  8. mountainman2
    Joined: Sep 16, 2013
    Posts: 298

    mountainman2
    Member

    I have been using two 12" x 12" x 3/4" pieces of plywood screwed together for jack pads under a 30,000 lb RV for 10 years and they show no signs of deterioration.
     
    Rich B., Hnstray and kidcampbell71 like this.
  9. spanners
    Joined: Feb 24, 2009
    Posts: 812

    spanners
    Member

    Have a look at what they rest 60 tonne machinery pieces on trailer decks. Timber. As long as it's quality timber it shouldn't be an issue.
     
    clem likes this.
  10. Terrible80
    Joined: Oct 1, 2010
    Posts: 702

    Terrible80
    ALLIANCE MEMBER

    Yeah, I'm surprised they don't make the whole lift outta wood. They used to make wood rollercoasters so it should be fine?

    Sent from my LG-TP450 using The H.A.M.B. mobile app
     
  11. The right thing to do is to chop and lower these things. The lift isn’t the problem
     
    clem and X-cpe like this.
  12. ^^^^^^There ya go! Just chop the tops. :D
     

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