SEPPI MIDIPIERRE crush and recycle stones up to 20 cm 8 216 First prototype of the SEPPI MIDIPIERRE stone crusher was build in 1987 Through this quotlongtermquot development today the SEPPI stonecrusher MIDIPIERRE has achieved maximum efficiency The little stone crusher MIDIPIERRE clears land from stones no matter whether for agricultural land as a step of land reclamation for the.