My main concern would be of the tines would hold up under weight of sand and also scooping/digging into sand. Otherwise worth a try!
I asked before but I’ll ask again
Why are you trying to sift all the poop out? What’s the issue if a small amount stays behind and get buried in to the sand?
I asked before but I’ll ask again

Why are you trying to sift all the poop out? What’s the issue if a small amount stays behind and get buried in to the sand?