In theory, using roughly the same engine to achieve the same function, the more complex the structure, the more failure factors, and the more complex the piggyback structure, so it is prone to problems. The actual use is also true, and the piggyback is prone to problems. From the actual situation, the domestic brush cutter market is basically a professional market, that is, a machine that needs to be durable. Therefore, the domestic market basically does not use the backpack, and almost all of them are side-mounted. The structure is simple, light and flexible.

There are three types of front-mounted, side-mounted and rear-mounted, and rear-mounted lawn mowers are the most widely used. The reciprocating lawn mower consists of main components such as cutter, cutter transmission, cutter lifting device, safety device and grass blocking device. The working principle and construction of the cutter are basically the same as those of the grain harvesting machinery. There are two types of blades: smooth and toothed. Generally, a light-edged moving blade is used.

The cutter transmission device is also similar to the grain harvester, mostly using an offset crank link mechanism and a swing ring mechanism. Due to the high growth density and high moisture content of the forage, the average speed of the moving knife is higher than that of the grain harvester, generally 1.6 to 2.0 m/s. The cutter lifting device is generally operated by a hydraulic system, which is quick and convenient to lift, and can ensure the adaptability of the cutter to complex ground. Reciprocating lawn mowers cut grass by the relative shearing motion of the moving and stationary knives on the cutter.

Its characteristics Tracks for Lawn mower are that the stubble is neatly cut, and the power required per unit of cutting width is small; but it has poor adaptability to different growth states of forage grass and is easy to block. It is suitable for flat natural grassland and artificial grassland with general yield. Due to the large vibration of the cutter during operation, the improvement of the operation speed is limited. The cutting speed of the moving knife is generally lower than 3 meters per second, and the forward speed of the operation is generally 6 to 8 kilometers per hour.