The dimensions of the 2 post lift are here:
Holes for anchors are about 3-4" apart.
Here's how manufacturer's anchor setting instructions: (looks to be copy and paste from Wej-It)
No where is there a recommended fastening torque. Although, interestingly enough there is a recommended fastening...
I like the idea of a 2nd nut but i'd have to buy all new bolts. Maybe my concern is over-blown. But according to this Fastenal chart.
With a M16,8.8 bolt, no lube (K factor = .2) and a torque of 90 lbs, i'd get about 8500 lbs of tension (clamp load). I think the relationship is linear so...
This is the anchor:
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Wej-It, PD58. Yes, drop in type threaded anchor. The instruction for the lift are poor at best and only specify "setting" torque of 90 ftlbs.
So, for my concrete the allowable tensions is 4120 lbs. Safety factor of 4. So, if I fasten my lift plate also w/ 90 lb-ft of...
Hi All.
Electrical engineer here, got mechanical question. The concrete wedge anchors i'm using for my car lift (M16) specify 90 flt-lbs installation torque; which is required to "set" the anchor into the concrete. Per specs., for my concrete psi, this provides approximately 4200 lbs clamping...
