BCSMark
Full Member
last night I stayed up a little later so I could build this new sifter before going to dig today. I have about 5hrs in it. It was mostly built from salvaged material, only other than the compression springs, the vibrating motor and the wood for the screen boxes. The total cost was right about $100.
the motor is an industrial vibrating motor like what could be used for concrete work. I got the 100W off amazon which seemed like the largest available. The top screen is 1/2” and the screen below it is 1/4”. The upper screen has angle iron on each corner to reinforce the corner while also extending below the sifter, and running between two of the pieces of angle is a flat bar to support the smaller screen beneath it. Two of these pieces of angle on one end of the screen also have a slot cut out so that the smaller screen can be removed from under the sifter to be dumped and observed. In each corner I welded a small round bar “stud” that drops down into the circumference of the spring. The sifter is then just simply sitting on top of four compression springs. This allows the screen to vibrate and articulate. It also allows the sifter to come apart from the stand. Beneath the screen I have a plywood “ramp” that is meant to direct the screened dirt out from under the sifter. This could benefit from having a smaller vibrating motor attached to it so the dirt doesn’t pile up under it as quickly.
overall I’m pretty happy with it. I have found you can’t overload it with dirt, or else it will cause it to not vibrate enough to efficiently sift the dirt. I found though if you are just shoveling dirt into the sifter that it keeps up pretty well, compared to dumping buckets into it.
I didn’t mean for this to be a tutorial on how to build it, but wanted to give a brief overview. If there seems like there’s interest over it I can take more pictures or answer any questions you may have.
the motor is an industrial vibrating motor like what could be used for concrete work. I got the 100W off amazon which seemed like the largest available. The top screen is 1/2” and the screen below it is 1/4”. The upper screen has angle iron on each corner to reinforce the corner while also extending below the sifter, and running between two of the pieces of angle is a flat bar to support the smaller screen beneath it. Two of these pieces of angle on one end of the screen also have a slot cut out so that the smaller screen can be removed from under the sifter to be dumped and observed. In each corner I welded a small round bar “stud” that drops down into the circumference of the spring. The sifter is then just simply sitting on top of four compression springs. This allows the screen to vibrate and articulate. It also allows the sifter to come apart from the stand. Beneath the screen I have a plywood “ramp” that is meant to direct the screened dirt out from under the sifter. This could benefit from having a smaller vibrating motor attached to it so the dirt doesn’t pile up under it as quickly.
overall I’m pretty happy with it. I have found you can’t overload it with dirt, or else it will cause it to not vibrate enough to efficiently sift the dirt. I found though if you are just shoveling dirt into the sifter that it keeps up pretty well, compared to dumping buckets into it.
I didn’t mean for this to be a tutorial on how to build it, but wanted to give a brief overview. If there seems like there’s interest over it I can take more pictures or answer any questions you may have.
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