Hydraulic pump is the heart of a hydraulic power system which produces hydraulic energy – a powerful fuel of machinery. In the process, it converts mechanical power into hydraulic energy, meaning that speed is turned into flow or pressure. Hydraulic pumps contain chambers for the transportation of fluid between the two different and separated ports: the suction port and the pressure port. The core of the process lies in the interchange of the fluid among its chambers. The utilization of a hydraulic pump is rather versatile, although usually in the field of the most challenging tasks.
What exactly makes them applicable in a variety of situations? Hydraulic pumps adapt the pressure level to the load they are supporting. When at rest, the pressure in a hydraulic pump is nonexistent. Their purpose is mostly found in the industrial region, where heavy load is being operated with. The power of a hydraulic system is unmatchable, hence their utilization in cranes, tractors, lifts, dump trucks and other heavy machinery. A system as dominant as the hydraulic system has got to be equipped with an adequate and reliable power source – that being the hydraulic pump. The choice of the hydraulic pump will determine the enforcement of a hydraulic machine.
Depending on what you would use your hydraulic pump for, there are many different kinds, models and variations. Before making a decision and even considering buying any kind of hydraulic pump, ensure that factors such as operating medium, design, range of pressure and such are all taken into account.
Let the first factor on the list of your criteria be whether the desired hydraulic pump is a non-positive-displacement pump, or a positive-displacement pump. A vast majority of hydraulic pumps belongs to the second mentioned category. In your purchase, gravitate more towards the wide-spread kind of positive-displacement hydraulic pumps for more security. The result in this kind of pumps will not be conditioned by pressure variations, meaning that you will have an uninterrupted process. On the other hand, a case of slippage with the non-positive-displacement hydraulic pump would jeopardize the process. Thus, the risk of not receiving the desired output is more present with the choice of non-positive-displacement pumps.
Depending on its placement, a hydraulic pump can be external or internal. The difference is in their weight, power and price range. External hydraulic pumps are meant for mobile usage. They are light-weight (compared to the internal ones), and more affordable. Some of them are even operated manually, such as hydraulic hand pump. On the other hand, internal pumps are placed in the machinery and are not made to be moved where needed. They make less noise and are built to handle thicker fluids.
Measuring the magnitude, as well as determining the nature of the work that needs to be done is half the job when choosing a hydraulic pump. Depending on the expected result, (whether you need to lift a load, improve a machine, open or close a certain object), you will go for an adequate category, and then consider characteristics such as pressure, possibility of movement and angle, weight, possible failures of the system, etc.