The arithmetic on bought feed is simple, and it is why so many farms move to mixing their own. Finished feed carries the cost of the grain, the grinding, the mixing, the bagging, the truck and the dealer's margin, and every one of those costs is paid again on the next delivery. A farm with its own maize can strip most of that out, but only if grinding and mixing happen in one place, at one time, with one operator.
That is the reason the 9HLP is built as a single frame rather than two machines. The vertical tank sits on the same chassis as the hammer mill, the mill discharges into the top of the tank, and one motor drives the crushing while a second drives the vertical screw. A batch of 500 kg is crushed and mixed in about 15 minutes; the larger unit does 1000 kg in the same cycle.
The mixing action is a full circulation, not a stir. The vertical screw lifts material from the bottom cone to the top of the tank, where it falls back down the outside, so grain, meal, bran and premix pass each other several times in one cycle. That is what pulls a 2 percent premix through 500 kg evenly, which a shovel and a concrete floor never quite manage.
Three things decide whether the batch comes out right. First, grind size: the mill and the mixer share a frame, so the screen chosen at the mill sets the texture of the whole batch. Second, order of loading: grain first, then protein meals, then the premix added last through the top hatch while the screw is running, never tipped in at the start. Third, moisture: damp maize bridges in the cone and the screw stalls, so the grain has to be dry before it goes in.
Cleaning between formulas takes a few minutes. The tank has a bottom gate, the screw runs empty, and a sack of ground maize pushed through afterwards clears the corners before the next batch. Farms that run two formulas, one for layers and one for broilers, do this between batches rather than at the end of the day.
The units are used on poultry, pig and cattle farms and in small commercial feed plants, usually alongside a hammer mill, a conveyor and a pellet mill. Zhengzhou Weiwei Machinery has built farm and feed machinery in Henan since 1980, holds CE and ISO9001 certification, and supplies the 9HLP with the mill, the tank and both motors on one chassis so commissioning is a single connection. Tell us your daily tonnage and your formula through the website and we will confirm the size.
If you need any assistance, you can contact our company via WhatsApp at +86 13526462915 to obtain the quotation.
