Ignoramus23984 wrote:

I am soon going to pick up six devices, each is a rectangular shape
approximately 2x1.5x1 foot. Each weighs 150 lbs. I hope that the
seller will load them into my pickup with a forklift, but unloading is
where I have my doubts. I could unload them with a chain hoist or a
"shop crane", but that is a hassle.

I unloaded a 20" band saw by myself by taking the tail gate off,
supporting two 2x8's on the step bumper and bracing the other ends on
the ground. Slid down rather nicely.

With the cooefficient of sliding friction and the angle of the ramps
the amount of force you have to manage becomes rather small.

Wes S