hpu component

Definition of Hydraulic Power Unit, How It Works, and Its Advantages

What is a hydraulic power unit? Generally, it is a system that consists of various components such as a pump, motor, and fluid reservoir. Nowadays, many sectors of industries utilize this device to enhance the efficiency of their operations.

For machine users, the term hydraulic power unit is likely familiar. Discussing hydraulic machines is an extensive topic due to the complexity and variety of components involved.

However, overall, the presence of hydraulic system-based machines has contributed to enhancing the performance of companies. With minimal fuel consumption, the generated power is multiplied manifold. Typically, these devices have been applied in sectors such as mining, industry, manufacturing, and heavy construction.

Definition of Hydraulic Power Unit

A hydraulic power unit, also known as a hydraulic unit, is a self-contained device comprising motor components, a fluid reservoir, and a pump.

Its primary function is to supply hydraulic pressure, or in other words, to generate the hydraulic pressure needed to move components within it. This enables the machine to operate optimally.

The hydraulic power unit serves as a device to supply fluid that is connected to hydraulic cylinder devices through an external pipe system to control actions from various valve groups. The fluid source comes from the hydraulic tank, then the pump and accumulator act as the driving force.

How Hydraulic Power Unit Works

So, how does it work?

Generally, the device includes a PLC control system that aims to control all internal hydraulic functions, thus exchanging signals with the control room (DCS).

In the process, the hydraulic system utilizes fluid in a closed condition to transfer energy from one source to another. This creates both rotational and linear forces required by the machine.

The device will utilize a multi-stage pressurized network to transfer fluid and is often equipped with temperature control devices. The mechanical characteristics and specifications of the hydraulic power unit also determine the type of mechanical force effectively.

Under high-pressure conditions, the fluid receives pressure in the cylinder and is then discharged.

Under normal conditions, the pump will pump fluid into the system, causing the valve conditions to reach the locking position for valve control. The actuator will then be fully controlled by the solenoid valve.

Following command signals from the system, the solenoid valve controls oil pressure and energy release from the energy accumulator, thus controlling the slide tube valve to move the valve through a mechanical transmission mechanism, to execute quick closure, normal opening, closure, and testing control.

Advantages of Using Hydraulic Power Unit

Although the scale of components is more compact, several benefits below may be considerations for you in using a hydraulic power unit-based machine system. Here are the details:

  1. Simple and practical
  2. Combines with advanced hydraulic elements such as high-pressure gear pump, cartridge valves, and Sandwich valves into various hydraulic circuits according to different needs
  3. Components are lighter, smaller, and more energy-efficient
  4. Cost-effective expenditure
  5. Depending on different combinations of hydraulic valves, hydraulic power stations can achieve various hydraulic system circuits manually or automatically
  6. Can reduce the workload of non-standard design demands in the market.

Applications of Hydraulic Power Unit Use

Nevertheless, who would have thought that the use of hydraulic power units is considered vital for various business sectors, including the following:

  1. Machine utilization supports various sectors in agriculture and mining, which involve challenging and harsh terrain environments.
  2. Capable of handling heavy loads that demand high mobility performance.
  3. Used for winged vehicles, tailgates, forklifts, air truck work platforms, dump trucks, four-position lifts, mobile lift repairs, roads, sanitation equipment, conveyor belt automation.
  4. Employed in hydraulic tailgate lifting systems, lift mechanisms, dump trucks, work platforms, press machines, and various machinery.
  5. Makes significant contributions by utilizing micro hydraulic systems in widespread high-level integration within logistics equipment, vehicle modifications, sanitation equipment, etc.

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