American Ground Screw: Ground Screw Installation Instructional Video

[@metaspencer]

So what happens when you hit a rock? Not a small rock, but a BIG rock like one that is a foot or more across and granite?

[@tianchang-l3z]

SJCT Ground Screw products are available in six distinct diameters: 63.5 mm, 68.0 mm, 76.1 mm, 88.9 mm, 114.3 mm, and 139.7 mm. Each diameter is designed to cater to different project requirements, ensuring optimal performance under various conditions. Generally, a larger diameter correlates with increased stability and higher load-bearing capacity. For instance, a ground screw with a diameter of 139.7 mm can support significantly heavier loads compared to one with a diameter of 63.5 mm. This makes larger diameter screws ideal for projects that require robust foundations, such as commercial buildings or heavy industrial structures.

[@CornellEngineers]

Nice video. We prefer slightly bigger flights for helical piers supporting houses and bigger structures but I like the idea and your video.

[@andrewdodd8681]

Nice product - much better than pouring tons of concrete. 👍

[@mikechristie-fogg2064]

Just put 16 ground screws in Connecticut. The video very very briefly shows the only right way to do this job, which is the skid steer that has a giant hammer drill attachment on a vertical guide track for going through the inevitable rocks. If you are looking for someone to do this job, make sure that is the kind of rig they have because it's the only way if there are any big rocks. A plain hydraulic auger won't cut it. If you hit a small rock the screw will push it out of the way as it goes in... but it also goes out of plumb. That is why the hydraulic track drill is the way to go, because the machine holds it plumb as it goes in. These other methods only work if you have six feet of loam.

[@bryana5058]

where can i find the adapter drive head

[@BobHolster-om8rf]

SO WHAT MAKES THIS BETTER THAN A HELICAL SCREW?

[@DrMatthewHudson]

To use this for DIY, does the adapter have to be purchased? Do you, or anyone, rent them?

[@chris76-01]

You can make your own.

[@chrisdavis6789]

Your website link was misspelled in the intro.

[@boots7859]

So local frostline is ~42 inches, normal for US North East. So 2/3 below frostline means 84" + 42" = 126" or 10'+? With the requirement for a skid steer or similar, helical piers have to be similar in cost while they bear compression much better.

[@Skr4x]

No, they need to have 2/3 of the "thread length" below the frost level. The pile shaft still needs to go down the 42 inches (60 in my area), this means you need to advance past that depth to get 2/3 of the thread below that. When factoring the length you are going to need bigger is better, since anything with frost line is always a "minimum".

[@DKaz78493]

Can ground screws be installed where the driving machine can not get to?

[@scottwillis5434]

I'd think not, though perhaps the low speed high torque driver could be put on hoses and supported in some different manner...

[@americangroundscrew2067]

Yes! We offer hand-held rentals as well. You will, however, need access to electricity.

[@trentneely5094]

​@@americangroundscrew2067 How do we get ahold of the rental equipment?

[@NSResponder]

Looks like Krinner ground screws. Are you a licensee, or private-labeling their product?

[@mattfernandes710]

In theory it works, what they don’t tell you is that if your in California we have all different sorts of soils and the electronic driver fails to drive a screw in the ground. I don’t recommend the electronic driver it sucks and it breaks. There is no indication in the service Manual about the driver nut bolt that comes loose, or even sheers off. I’ve used this tool for over a year now and it fails more than it works. Use a skid steer or wait til the winter to use the crappy electronic driver.

[@GerdRibbeckZimmerermeister]

Looks good ! maybe i use it for our masstimberhouses :)

[@karenromero1703]

How much is one? Cost is important.

[@kellyness7915]

they are about 80-140 each

[@Kinadnuf]

What the hell is the point of the distracting, annoying background music? Meant to be an informational video.

[@Z-Ack]

Looks like a weak version of a helical pier.. be a good rock anchor.. be cool looking deck support columns too..

[@zioncanyons3011]

I pray that there are no stones in the ground

[@joefrommontana252]

Somebody should actually sell these ground screws to people instead of making them ask for quotes. They'd make a killing. Still searching.

[@mihaicostel5883]

They do , search on the web