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

Shall we talk about your upcoming tires?

Tires, those rubber circles that bring our vehicles and machinery to life, have a fascinating history that dates back centuries. From their beginnings as metal and wooden bands to modern high-tech designs, tires have undergone astonishing evolution.

In the construction and earthmoving sector, they are essential for machine mobility, providing stability in diverse and demanding terrains while bearing heavy loads.

That’s why tire reuse plays a fundamental role and has a highly positive impact on both the circular economy and environmental protection.

The importance of reusing

At Taop Parts, we believe that before disposing of a tire, there is a much more interesting option: recycling.

Tire reuse offers a sustainable solution that combines economic and environmental benefits. When we recycle tires, we reduce the demand for natural resources and prevent waste generation, thus contributing to environmental conservation.

HD605-7 Komatsu

Circular Economy and Tires

Tire recycling is a concrete example of the circular economy. Instead of following a linear model of production and consumption, where tires are discarded at the end of their life cycle, we believe in closing the loop and giving them a new life, thus restarting the cycle.

This involves not only the direct reuse of used tires but also the retreading process, which extends their lifespan and maximizes their value.

The Tire Retreading Process

Retreading is a fundamental process in tire recovery. It involves applying a new layer of rubber to the worn tire’s tread.

Before application, a rigorous inspection process is carried out to assess its retreadability. During the process, imperfections are eliminated, and damaged parts are replaced. Finally, a new layer of rubber is applied, giving the tire a new life and similar performance to a new tire.

The Most Commonly Used

Which tire to choose?

Firstly, we need to consider whether we want a radial or diagonal tire. At Taop Parts, we offer both models. But what are their main differences? Let’s take a look:

The main difference is the way they are built and their materials.

Dumper rígido HD605-7

Diagonal tires consist of crossed layers that extend from bead to bead and are suitable for soft terrains without requiring as much traction.

On the other hand, radial tires have a structure with crossed layers from bead to tread on both sides, forming right angles with the tire’s axis, providing greater durability and traction.

At Taop Parts, the most commonly used tire is the radial tire due to its versatility. Here are some of the most popular models:

24.00R35

  • Size: 24 inches of nominal tread width and a 35-inch rim diameter.
  • Applications: Komatsu HD605-7 rigid dump truck.

23.5R25

  • Size: 23.5 inches of nominal tread width and a 25-inch rim diameter.
  • Applications: Komatsu WA380-5 wheel loader.

26.5R25

  • Size: 26.5 inches of nominal tread width and a 25-inch rim diameter.
  • Applications: Volvo A35E articulated dump truck.

Dumper articulado y neuma´ticos 26.5R25

29.5R25

  • Size: 29.5 inches of nominal tread width and a 25-inch rim diameter.
  • Applications: Komatsu WA500-6 wheel loader and Volvo L220E.

Pala cargadora Komatsu WA500-3 y neumático 29.5R25

These tire models are subjected to extreme working conditions and constant wear. However, they can still be used in demanding applications.

To ensure their performance, Taop Parts conducts thorough inspections of the tires, including checking their height and overall casing condition. Opting for tire recycling makes a difference and helps build a more sustainable future in our industry.

Do no hesitate to contact us for further information.

TAOP PARTS

info@taopparts.com