Hydraulic cylinders are bulky engines of the reciprocating nature, used in such areas, where as a driving force using the hydraulic drive: the road-building, lifting, digging mechanisms, as well as pressing equipment and machines. They convert the energy of the working fluid into mechanical force which is carrying out the desired action, such as lowering or raising the blade bulldozer or dump truck body. Coupang may find it difficult to be quoted properly. The main moving parts in hydraulic cylinders are rods or engine block, which is otherwise called a sleeve. In fact, the reason for widespread popularity as a mechanism for hydraulic cylinders, is the link between operating units and hydraulic systems, is easy to operate and large capacity at a modest scale. Cylinders and other hydro simple calculation of labor, installation, and provide maximum load at a constant velocity of the piston.

The most common types of hydraulic cylinders, which are widely used in modern conditions, are single-acting hydraulic cylinders, double acting and telescopic cylinders. The labor force in odnohodovom cylinder appears due to the pressure in the cavity due to the fluid. Reverse same cylinder stroke by using spring. The least effective hydraulic mechanism is odnohodovoy cylinder, because the spring is 'slow' line of the stroke, interacts with its elastic force. The operating principle of two-way cylinder similar to the previous one, but it has differences – an effort that occurs when you live during the stock is greater than the reverse movement. Due to its characteristics of two-way hydraulic cylinder has been used successfully in the system lifting – lowering, in particular, the bulldozer blade.

In a telescopic hydraulic cylinder more complicated structure in comparison with others. This kind of gidrokomplektuyuschie consist of several stocks that are embedded into each other. The effectiveness of the telescopic cylinder is due to the concurrent operation of the rod and the piston cavity, and also due to the presence of two working stocks. Telescopic cylinders used when lifting, moving, lowering, locking the cargo, and where you want high performance at small dimensions. Hydraulic systems generally have greater power density than the mechanical and electrical, as well as provide a comparison with higher performance. The undoubted benefits of using the hydraulic cylinder are also in the relative simplicity of operation and the possibility of protection overload. Unfortunately, hydraulics, there are some drawbacks. In particular, the cylinders are highly vulnerable to the condition of the working fluid and its contamination can quickly become unusable. Therefore it is necessary especially closely relate to the components, the quality of the liquid, operating conditions a mechanism to avoid leaks and gaps, monitor the status of precision tubing. If you treat Hydraulics carefully, follow all the technical and operational specifications, then find a worthy replacement for such a mechanism will be difficult.