What they are comprised of and what they look like
You can opt for hydraulic power packs in varying sizes as well as designs. For instance, you can either choose a standard power pack or a micro one, or you can also go for a mini power pack or unit. But the thing about these units is that they are designed to be reasonably-sized so that they remain portable and easy to transport.
Each unit or pack has different primary components, and no matter how big or small the unit is, it will always have the following: a hydraulic reservoir, regulator(s), a hydraulic pump, a motor, pressure supply lines, and pressure relief lines.
Each component has a different function; for instance, the reservoir is for holding the fluid which the hydraulic power pack needs to work. You can select reservoirs of different sizes as well. Meanwhile, regulators are the components that control as well as maintain the pressure delivered by the hydraulic power pack to the attached machinery or equipment. The supply lines and pressure relief lines, on the other hand, provide or transmit the fluid (which is pressurised) to the hydraulic pump. Relief lines are designed to relieve the pressure found between the valves and the pump. They can also control the direction of the flow through the hydraulic unit or system.
Lastly, the pump and the motor work in conjunction with each other, as the pump relies on the motor for power. The pump can then pressurise the liquid or fluid and make sure that it moves or flows around the system. The hydraulic pump is capable of pulling the liquid or fluid from the reservoir as it creates a vacuum, and then it forces the liquid or fluid out to be distributed throughout the entire system.
The overall functionality of hydraulic power packs
You can make use of hydraulic power packs to deliver a high level of power or energy to whatever machinery or piece of equipment you connect it to, and if you have a higher number of valves, you can power a wider range of machinery or equipment. There are indeed hundreds of kinds of machines that can utilise hydraulic power, from scissor lifts and elevator lifts to other bigger pieces of equipment such as bulldozers, excavators, and more. In general, if you have machinery which is required to lift heavy objects, then you may require help from a special hydraulic power pack.