corn grinder, grain grinder 1. our factory can produce all kinds of corn grinder. 2. size is 150#, 500#, 201# 202# and so on 3. hand operated corn grinder, can put on the desk, it is very easy for use 4. we can supply high hopper, lower hopper, square hopper and so on 5. it can grinder corn, grain, nut, cocoa and so on 6. cleaning and maintenance: a. after each use, the unit should be thoroughly washed in hot soapy water and dried thoroughly utilizing cloth or towel b. A light coating of vegetbale oil should be spplided for preservation of metallic finish. 7. note: do not out your finger or other objects into the feed mouth while it is in operation