A cutterbar supports cutting blades and can be easily changed for replacement or sharpening. It must be strong and flexible, made of steel, and rated for the intended application. Maintenance is important for safety, and technicians can be hired for special equipment.
A cutterbar is a machine component that supports the blades used for cutting or is itself a blade, depending on how the machine is configured. This part is usually designed to be easy to change so that the blades can be replaced or sharpened as the cutter bars see very heavy use. Hardware stores often sell basic cutter bars and can order special components. People can also order directly through manufacturers or obtain equipment through service engineers who work with specific types of equipment.
In the case of a holder, the cutter bar stabilizes the blades and keeps them still during use. It must be strong and flexible, as it can be subjected to very high pressures when the blades are running. The cutterbar cannot break under pressure, but neither can it be light enough to bend or deform. Typically, the component is made from steel and is attached to the blades with retaining bolts or clips. The bar also provides a secure component to hold when people change or remove blades.
On equipment such as harvesters, the cutterbar is itself the blade. These cutter bars are generally made using two bars equipped with triangular teeth. When the device is switched on, the blades move parallel to each other, trapping the cut crop between the blades and shearing it. Cutter bars must be regularly oiled and sharpened so that they resist rust and cut crops evenly without crushing or crippling the stem bases. Harvesters also have equipment that can be used for other stages of the crop harvesting process.
Different cutter bars are rated for different applications. Bars designed for agricultural use are designed differently than bars that cut through wood, metal and plastic. It is important to select a component that fits well on the machine and is designed to cut the material that will be going through the machine. A weak cutterbar or blades that are not rated for a given application can fail, sometimes catastrophically, putting the machine operator at risk of injury.
The maintenance of the machine as a whole is also important for the safety of the cutterbar. Machine operators are usually tasked with inspecting and maintaining their own equipment, sometimes with the use of checklists and logs to help them keep track of needed maintenance. Companies can also hire technicians to maintain special equipment.
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