1 PC Electric Roller Stainless Steel Grinder 110V 65r/min with 4L Hopper Capacity. Voltage: 110V Power: 40W Speed: 65r/min Hopper capacity: 4L Weight: 7kg. This DY-368 manual electric roller grinder is made of stainless steel. It has an attractive appearance, easy to use, and also it is flexible disassembly. This grain mill is professional in grinding barley, wheat and other cereals. It is provided with adjustable 2 rollers which can be crushed cereal well and peeled shell off perfectly, so as to be good for brewing beer in future. The 2 rollers design has the main advantage that it draws the grain better and gives improved throughput. This equipment is perfect for large batches and high efficiency milling. With two rollers, all your grain will be crushed twice in one cycle. The crush is through the fixed gap between the top two rollers.