Napier Grass Harvester Machine Small Forage Harvester ...A Napier grass harvesting machine is an agricultural machine designed to efficiently cut and chop Napier grass for use as animal feed, silage, or biofuel. These machines can be tractor-mounted, self-propelled, or even handheld for small-scale use, and they use a combination of cutting and chopping mechanisms like chain-drive or disc blades to cut the grass and a blower to throw it into a truck or container. Key features include adjustable cutting lengths, high-capacity collection systems, and varying power sources like PTO or engines.

Cutting and chopping: Many models use a chain drive mechanism to cut the grass efficiently with minimal damage.  Other designs, like the 4QX-1600, use disc blades for cutting and a chopping rotor to finely chop the material.  Some machines can adjust the length of the chopped material from \(1-3\) cm, and some can achieve a cutting size of less than \(4\) mm for biogas production.