A Glimpse into the Heart of Our Machines: Hydraulic Pumps

The hydraulic system is a vital component in earthmoving and mining machines, as it utilizes special fluids, usually hydraulic oil, that are under pressure.

This pressure, generated by the fluid, is essential to transmit the required power and enable the efficient operation of various components in the machines. In this way, it enables the control of actions and other crucial movements in the equipment’s operation.

VOLVO L

Components of the hydraulic system

Hydraulic pump: Converts mechanical energy into hydraulic energy, generating hydraulic flow that drives the operation of the components.

Hydraulic valves: Control direction, pressure, and flow, enabling precise movement of actuators.

Hydraulic cylinders: Transform hydraulic fluid energy into linear motion, driving lifting, pushing, and pulling actions. Among the top sellers at TAOP PARTS are:

Lift cylinder: Allows the movement of the boom and generates the force needed for lifting loads.

Steering cylinder: Enables control and change of the machine’s direction.

Boom cylinder: Provides lifting and tilting motion in heavy machinery, such as excavators, for excavation and loading tasks.

Bucket cylinder: Facilitates the movement of the bucket or other attachments.

Komatsu WA470-5

Hydraulic motors: They are responsible for converting hydraulic oil into circular motion, enabling the operation of elements such as wheels and tracks. In this way, the hydraulic system drives essential movements for the machine’s mobility and operation.

Volvo L220E

Hydraulic filters: Maintain fluid cleanliness, protecting the system components from potential damage caused by particles and contaminants.

Accumulators: Store hydraulic energy and release it when a temporary increase in pressure or flow is needed.

At TAOP PARTS, we offer all the hydraulic system spare parts, as well as a large stock of its main component, the hydraulic pump.

The hydraulic pump in Komatsu and Volvo machinery

What is it?

The hydraulic pump is a device that converts mechanical energy into hydraulic energy, generating the necessary fluid flow that drives the operation of the hydraulic system.

Volvo L180E

Types

Gear pumps

They are simple and economical, suitable for low-pressure and low-flow applications.

Axial piston pumps

Composed of multiple pistons or plungers (usually six or eight), they can handle pressures of around 380 bar. They offer higher efficiency and pressure capacity, making them ideal for demanding applications.

There are 2 types:

  • Variable displacement: With the same speed, the hydraulic fluid flow can vary.
  • Fixed displacement: Depending on the speed, the flow varies. Higher speed results in higher flow, and vice versa.

Vane pumps

Commonly used for fuel and/or oil transfer. They do not generate high pressure but provide a good flow rate.

Gear pumps

Composed of two gears, they have a constant flow rate. The flow rate increases with higher revolutions. They operate at a pressure of approximately 250kg.

How does a hydraulic pump work?

Typically, the hydraulic pump takes in fluid at low pressure and sends it out at high pressure, creating a continuous flow that activates the entire hydraulic system of the machine, including cylinders, main valves, hydraulic distributors, etc.

It has an inlet or suction port and a main pressure outlet (PP).

On the other hand, variable displacement piston pumps work differently, as they act by internal signal to vary the flow.

Our most popular pump models

Here are the models that our best-selling pumps fit:

Komatsu

708-1S-00230 for wheel loaders like WA470-5, WA480-5, and WA380-5.

Komatsu WA380-5

708-1S-00940 for wheel loaders like WA470-6, WA430-6 and WA380-6.

Komatsu WA380-6

15068597 for wheel loaders like L220D, L220E, L180E and L150E.

Volvo L150E

11709023 for wheel loaders like L220D, L150E and L180E.

Volvo L220D

In summary, the hydraulic system is a crucial component in earthmoving and mining machinery, with hydraulic pumps playing a vital role in its operation by generating the necessary hydraulic flow.

At TAOP PARTS, we understand the importance of supplying high-quality components for hydraulic systems. We offer a wide range of parts and spare parts for Komatsu and Volvo hydraulic systems. We work to ensure our customers’ machines perform at their best while promoting environmental protection and circular economy by giving our spare parts a second life.

Feel free to contact us!

TAOP PARTS

info@taopparts.com

The Liebherr Excavator: An Icon in the Construction Industry.

Since its founding in 1949, Liebherr has been a key player in the construction industry, manufacturing high-quality machinery for projects of all types and sizes. With a wide range of products including cranes, trucks, excavators, and loaders, it has earned a reputation as a leading brand in its field.

Excavators have become an icon of the brand, being used in construction projects all over the world. From demolishing buildings to constructing roads and bridges, they have demonstrated their versatility and reliability in a wide variety of applications.

History and applications of Liebherr excavators

In 1967, Liebherr introduced its first hydraulic excavator, revolutionizing the heavy machinery market and setting new standards for performance and efficiency.

Within its wide range of machinery, they have become one of the brand’s icons. These machines, mainly used in construction and mining jobs, have evolved over the years to adapt to the needs of each project.

From compact equipment for work in tight spaces to large machines for larger projects, Liebherr has developed a wide range of machinery to meet the needs of its customers.

The Liebherr R926LC Litronic excavator: features and main components

Among the most prominent models is the R926LC Litronic, which is characterized by its high efficiency and its ability to work in demanding conditions.

R926 Liebherr

It is a medium-sized model designed to offer high efficiency and productivity in excavation and earthmoving work. Among its main features are:

  • Engine

    : The R926LC Litronic features a Liebherr 150 kW diesel engine compliant with European level V regulations.

  • Hydraulic system:

    The excavator’s hydraulic system has a flow capacity of 2 x 265 l/min and a maximum pressure of 365 bar.

  • Cab:

    The operator’s cab is spacious and designed to offer excellent visibility and comfort. It features an air-suspended seat, a color touchscreen for machine control, and air conditioning.

R926 Liebherr

  • Control system:

The Litronic control system allows precise control of the machine and provides a wealth of information on its performance and condition.

  • Main components:

Main components include the mainframe, boom, arm, bucket, undercarriage, and tracks. All of them are designed and built with high-quality materials to ensure machine durability and performance.

Confidence in quality

Liebherr has established itself as a leading brand in the sector thanks to its constant innovation and technological development. Its machines offer high performance, great efficiency, and long-term reliability, making them a reliable choice for all types of construction projects.

At TAOP PARTS, the inclusion of this great brand in our offering reaffirms our commitment to warranty, quality, and excellence, allowing us to provide our customers with the best solutions for their needs.

Do not hesitate to contact us.

info@taopparts.com