Anchor Substitution for Portable 2 Post

[TraderGuy]

I've been researching lifts for my garage, and when it comes to 2-Post lifts, I'm mostly limited by size and height. If I go with a 2-post, it will need to be portable, so I don't give up a garage bay. I've drilled a test hole, and the concrete is 4.5" at that spot. Spec is 4" @ 3000PSI.

MaxJax calls for PD-58 or PS2-58. I've read on this board about all the issues people have had with the PD-58, so looking to go with epoxy. The PS2-58 is going to be well through the concrete, diminishing the capability to some unknown extent. Looking at the PS2-12, it appears I can use that to its stated specs since it has a length of 3 11/16 and a hole depth of 4 1/8. Its Tensile strength can be slightly higher than the PD-58. Has anyone done this, or tell me why this is a terrible thing to consider?

 

[goblue1998]

You should not downsize the bolts from 5/8 to 1/2”. Bad idea.

Either replace a chunk of the concrete (go thicker) and use the epoxy anchors or go with the wedge anchors. You don’t have enough thickness for the epoxy anchors.

 

[dave_dj1]

Or just go with a portable two post lift

 

[wssix99]

tell me why this is a terrible thing to consider?

Not all epoxies are the same and have a property called "creep", which is a problem for lift posts where some bolts are under tension. They also require a higher level of attention to detail in the installation and some skill to install.

(The wedge type of anchors are idiot-proof. If wedge anhors have a problem, we feel it right at the install. If expoxy anchors have a problem, we don't know until they fail spectacurly.)

If you have a need for Expoxy anchors, I recommend taking some uncertainty out of the equation and using MaxJax's parts and blessed kit: https://www.maxjax.com/pub/media/downloads/MaxJax-Epoxy-Anchor-Kit-Adhesive-5215912.pdf

 

[like2wheel]

Or just go with a portable two post lift

You mean like the MaxJax?



.

 

[dave_dj1]

You mean like the MaxJax?



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oops....lol