Ultrafine Vertical Mill. Capacity: t/h. Max feeding size: 30mm. Adopts GCr15SiMn for Ring and Roller, which is better than normal 60Si2Mn. So far, it is the most suitable mill for waste tyre pyrolysis carbon black micron powder making. live chat Get quotation. Shanghai Clirik Machinery Co.,Ltd. Micro Powder Grinder.