Cylinder on Excavator
You may wonder wow many cylinders a hydraulic excavator have at most in an excavator.
The answer is that, starting from the bottom, a hydraulic excavator's functioning body has three cylinders: "boom cylinder," "arm cylinder," and "bucket cylinder." Although mini types only have one of each, there is one type that has two of each, for a total of six. There is also a type, such as a loading shovel, that has a hydraulic cylinder inserted inside the bucket that can open and close the bucket.
Except that, let me explain brifely what hydraulic cylinders are used for.
Hydraulic cylinders are used for creating mechanical force in a linear motion. A hydraulic cylinder is a tube capped at either end with a rod sticking out of one side. Attached to the rod, interior to the cylinder, is a piston. The piston separates the internal rod side from the internal cap side of the cylinder. Fluid is forced into either side of the cylinder to extend or retract the piston rod.
The piston rod is attached to the moving element of the machine, such as an excavator's boom arm or a press's platen. A hydraulic cylinder is a fantastic choice for any application that requires linear force application, and no other linear motion mechanism is as robust and efficient as a cylinder. Hydraulic cylinders can stretch with a force of a few thousand pounds to thousands of tons.
Hydraulic cylinders are used in mobile applications, such as excavators, dump trucks, loaders, graders, back hoes and dozers, which is an incomplete list to say the least. They can push, pull and lift loads of any description, and the mobile machinery industry relies nearly exclusively on hydraulic cylinders for linear motion.
Hydraulic cylinders are also used prolifically in the industrial machinery industry. The power density of hydraulic cylinders is unmatched, making them great for presses, compactors, injection molding, forging presses, et al. Even for advances applications such as flight simulators or fatigue testing, hydraulic cylinders can be used in literally any linear motion application.
