Air springs for agriculture

September 28, 2022

Air springs are also widely used in agricultural production, which can make agricultural equipment work better, greatly reduce the production cost of agricultural products, and improve agricultural efficiency.


An air spring could be defined as a reservoir of air made of rubber and fabric, which is shaped with bellows and that can be used to support load, isolate vibrations and shocks, or act as a pneumatic cylinder by expanding itself.


One of the great advantages of air springs is that they will not be corroded, and they can run in a naturally dirty and dusty environment without being corroded. For example on a farm, soil is unavoidable. Because air springs are sealed units, they last a long time and don't require

extensive repairs. And air springs have no moving parts, no friction, and an immediate response in the form of force or compliance. The air spring has excellent nonlinear hard characteristics, which can effectively limit the amplitude, avoid resonance and prevent shock. The nonlinear characteristic curve of the air spring can be ideally designed according to actual needs, so that it has a lower stiffness value near the rated load. Since the medium used in the air spring is mainly air, it is easy to implement active control. Air springs draw in and release air to maintain proper force and support any objects that may exert pressure.


The most common use of air springs in agriculture is on seeder/planter. On seed drills, air springs act as pneumatic actuators for pressure control. In doing so, it helps farmers maintain a consistent seed depth directly from the comfort of their tractor cab. After the emergence of the pneumatic system of the seeder, farmers no longer have to manually adjust the depth of the seed. This system is made up of air springs, along with a dedicated small electric air compressor and air supplied by a downforce control module that helps create just the right amount of pressure in it to keep the planter head in the soil. correct depth. Air springs are used as actuators and also help the machine handle terrain and soil density changes. Specifically, as the soil density varies, for example from sandy to heavy clay, the air spring may expand or compress. This keeps the planter head at the correct depth to ensure optimal germination and crop productivity.


In addition, air springs are also used in soil fumigation vehicles or machines. The soil fumigation vehicle or machine needs to be stable and balanced when working. Since the ground surface is usually uneven, the soil density on the same piece of land may change frequently, and the application of air springs on the machine can maintain stability without harming any surrounding environment.