Posthole Digger Down pressure PHD

bones1 · Oct 13, 2006

Ran across this PHD searching the web and this is a very interesting unit.I like the hydraulic down pressure. Has anyone seen or used this.Maybe we could make one.It's made by Hodge industries in Australia.

MrJimi · Oct 13, 2006

Looks very simple, could also be done with a manual cylinder like on an engine hoist and if you have one already, you could borrow it with no additional expense.
Jim

Timber · Oct 13, 2006

They make a kit for it but I have yet to need one, usually if it stops digging it is because something is in the hole. Remember this is a drill it pulls itself into the ground. If it isn't it is because there is something there or the tip is dull or broken

Boomerang1 · Oct 14, 2006

In Arizona, the caliche is so hard, that a 6" dia. bit will sit and spin until it makes a shiny spot. We have to make a starter hole with a pickaxe and add water to get the bit started. Keep adding water while drilling and 20 minutes later we will have a 3' deep hole.

Tom_H · Oct 15, 2006

That downpressure kit looks a lot more serious than the ones that come from Land Pride. Of course, if it can lift the tractor's rear, it's adequate.

We have a cilica cemented hardpan called durapan. Thickness varies from 4'-16'. It's water impermeable. Augers have to have carbide fishtail tips (usually Pengo) and the PHD has to have downpressure.