Weiwei Machinery builds the 9ZP chaff cutter series to cover that whole range. For the backyard and small barn there is the 9ZP-0.4A: a 2.2 kW, 220V single-phase unit making 400-1200 kg/h and weighing just 53 kg, small enough to move by hand. Step up to the 9ZP-1.8 (3 kW, 1.5-1.8 t/h) for a family herd, or to three-phase 380V models such as the 9ZP-4.5 (5.5 kW, up to 4.5 t/h), 9ZP-9 (11 kW, 9 t/h) and 9ZP-10 (15 kW, 10 t/h) for continuous farm and co-op work. Every model cuts both green grass and dry straw.
Inside, a steel cutting blade and an automatic feed roller draw the stalk in evenly and slice it to a set length, so the chop is consistent batch after batch — short for silage that packs and ferments well, longer for bedding and dry roughage. A fixed guard, overload protection and the enclosed cutting chamber keep the operator clear of the blades. Because the machines are dry-wet dual use, one cutter handles the spring grass, the autumn straw and the fresh forage in between.
Chopped straw is the kind of upgrade that pays back fast: animals waste less, silage stores longer, and straw that would be burned becomes feed or bedding instead. The global chaff-cutter market is set to grow from about 1.85 billion USD in 2024 to 2.94 billion USD by 2034, with Asia-Pacific already the largest user and Africa the fastest-growing region as more small farms mechanize.
