thanks for the replys.
The price is controlled mainly by the price of the motors at around £300, I am hoping to price the unit at around £500 to £600, the motors are industrial grade so they can run all day without any problem at all.
The noise of the machine is fine you don't need ear plugs to use it, i would have put the sound on but the mic on the camera isnt the best.
The soil that i was screening has been there a while and was full of roots and sods of turf that do get stuck in the mesh but you just pull them off as your going, the soil is probably a bad as you can get.
The soil does not need to be bone dry to go through it, you will find that this machine can basically cope with what ever you throw at it,
I thought of this idea after being a landscaper for years and having to dispose of soil and bring in screened soil, i was frustrated that there was not anything out there that could screen it as i dug it out, so i decided to make something myself.
I have other designs but just testing this prototype first before wasting more time and money.
It maybe more appealing to landscapers etc but i thought its would be an idea to get the opinion of everyday gardeners too.
I worked out it could probably screen about 2 to 3 tons an hour
I hope that cleared up a few questions, please give me plenty of feedback and opinions as you can.