BendPak lift setup

[6869704x4]

So like I said in the other thread I was disappointed with the lift being made in China. However after a good inspection this this thing does look pretty good. All the welds are very consistent with no splatter. Can't see penetration but oh well. All the parts, pulleys, cables, hoses etc look well made. A couple of pics from the first day.

 

[6869704x4]

I didn't have high hopes of that fifty year old concrete meeting specs and it failed, just barely. Also have no idea of the psi or if any rebar. So, I have two options. Increase the size of the base plate to spread out the load? Big unknown there, or do this.

https://www.bendpak.com/media/wysiwyg/Concrete-Slab-Requirements-BendPak-2019.pdf

I have the XPR10. New slab requirements will add about $800. Wife will not be happy.

 

[mikester]

Cut the slab and pour a new pad under the lift using rebar. Easier to get forgiveness than permission!

 

[TheOldHokie]

I didn't have high hopes of that fifty year old concrete meeting specs and it failed, just barely. Also have no idea of the psi or if any rebar. So, I have two options. Increase the size of the base plate to spread out the load? Big unknown there, or do this.

https://www.bendpak.com/media/wysiwyg/Concrete-Slab-Requirements-BendPak-2019.pdf

I have the XPR10. New slab requirements will add about $800. Wife will not be happy.

So how did it fail - minimum thickness? I am sure the published requirements have a significant safety margin built in.

Dan

 

[Runs With Scissors]

Nice hoist. Having one is a must for me. Working on the ground and getting my fat a$$ up and down is a disaster.

How many pounds is it rated for? I now see it's the xpr10

Mine is a 10K and called for a 4" minimum at X psi (I cant remember)

When i drilled the mounting holes and had an "average of 3 3/4" depth.

No problems or cracks in the concrete for 10 years, and I quite regularly put my 3/4 ton, extended cab, diesel up.

 

[Runs With Scissors]

I forgot to add.

It also said that "no more than 3/8' of shims could be used.

But I had one side just north of that, so I used a "bedding compound" like they use for setting large factory machines in place. I also use to use it when an airplanes needed to be "fixture'd" in place for large structural repairs.

After it was shimmed and torqued, I basically I made a "wall" about 1" around the base with aluminum tape. Then poured the bedding grout in and it fills in all the gaps underneath the base.

I'm sure someone here knows the name of the stuff, I can't recall it right now.

 

[North Idaho Wolfman]

I did 6" at 7500psi, on the garage slab.
I don't think I'll ever put a lift in there, but I can drive / lift / move just about anything on it.

 

[Mrlunchbox]

I did 6" at 7500psi, on the garage slab.
I don't think I'll ever put a lift in there, but I can drive / lift / move just about anything on it.

Wow... thats a hell of a slab! LoL

 

[North Idaho Wolfman]

Wow... thats a hell of a slab! LoL

It's a Monolithic pour over foam and hydronic heated.
This is the garage section, 1080sf

The house is 4 1/2+ of 7500 PSI

 

[skeets]

Wolf man that just how I wanted to do mine, I was out of town for work and they said it would be like 3 weeks before they could do the pour,, cool,, the contractor came and poured the week I left never put in the tubing electrical nothing drains nuttin. They subbed it out, and the company they subbed to went tits up before I could get a claim filed, seems they were already out of business when they did mine. Ya gota watch contractors!

 

[North Idaho Wolfman]

Ya gota watch contractors!

HAHAHA, yes you do!
FYI: I'm the contractor!

 

[skeets]

Like I said

 

[6869704x4]

So how did it fail - minimum thickness? I am sure the published requirements have a significant safety margin built in.

Dan

Yeah, minimum thickness. The safety factor is one of the unknowns.

 

[6869704x4]

It's a Monolithic pour over foam and hydronic heated.
This is the garage section, 1080sf

View attachment 109051

View attachment 109064

The house is 4 1/2+ of 7500 PSI
View attachment 109063

View attachment 109065

View attachment 109066

Show off

 

[Runs With Scissors]

Wolf man that just how I wanted to do mine, I was out of town for work and they said it would be like 3 weeks before they could do the pour,, cool,, the contractor came and poured the week I left never put in the tubing electrical nothing drains nuttin. They subbed it out, and the company they subbed to went tits up before I could get a claim filed, seems they were already out of business when they did mine. Ya gota watch contractors!

Wow, thats cool as hell.

 

[KKBL]

When we installed a 9000 lb Rotary symmetrical two post, the 4 inch 5000 psi was probably "good enough", but went a bit over-kill to make it "WAY more than enough".
Cut out two 4 ft squares, removed over 12 inches of soil, used two layers of mesh, #6 bars, L-Bolts for the lift posts and 5000 psi concrete. Have a friend that installs foundations for things like roller coasters, so the only cost was for the 1 3/4 cu yard of concrete delivered.

 

[Freeheeler]

I did similar. Cut out 3 ft squares, dug down and out. Re-poured with 6,000 lb mix with rebar so the new part is 10" deep and extends about 6 inches under the existing slab in all directions. Did it myself so the only expense was for the bags of concrete, a days rental on a mixer, and a few Aleve. I'll post pics if I can find them.

 

[Freeheeler]

pics maybe?

 

[TheOldHokie]

When we installed a 9000 lb Rotary symmetrical two post, the 4 inch 5000 psi was probably "good enough", but went a bit over-kill to make it "WAY more than enough".
Cut out two 4 ft squares, removed over 12 inches of soil, used two layers of mesh, #6 bars, L-Bolts for the lift posts and 5000 psi concrete. Have a friend that installs foundations for things like roller coasters, so the only cost was for the 1 3/4 cu yard of concrete delivered.

I did similar. Cut out 3 ft squares, dug down and out. Re-poured with 6,000 lb mix with rebar so the new part is 10" deep and extends about 6 inches under the existing slab in all directions. Did it myself so the only expense was for the bags of concrete, a days rental on a mixer, and a few Aleve. I'll post pics if I can find them.

Pretty much what the installation instructions for my 9K lift said to do. They also said just tie the new section to the old slab with rebar.