... adjustable. Between two rollers equipped with wedge or gasket adjusting device, wedge adjusting device upper have adjustment bolts ... , when adjustment bolts pull wedge block up, wedge block will move roller from fixed wheel ... enlarge, then the grain-size enlarge. When wedge block downward, the grain-size decrescent. Gasket ... ×9041.28220×2680×2475 New type Roll Crushing Grinder