Hydrojetting: know the history!


Although it is unknown to many, hydrojetting is a simple and easy to understand process. The method is widely used in various industry sectors and in service provision worldwide.

But, after all, when did it appear and what is its history? That's what we're going to talk about in this text and reveal, too, the main differences between hydroblasting and abrasive blasting.

Continue reading and answer your questions!

The beginning of everything

According to scholars and experts, the idea of ​​blasting came through a grain of sand.

In fact, it is a very curious story. It all started when American soldier and inventor Benjamin Chew Tilghman (Filadelfia, 1821-1901) observed sand marks on his window pane after a storm.

Thus, he thought of creating the process to engrave marble or granite headstones. In 1862, the process evolved and the sandblasting started to solve problems of adhesion of protection paints and cleaning of encrustation during the American civil war in the first battleships (Monitor vs. Merrimack, used in the Battle of Hampton Road, in 1862) .

Blasting consists of moving particles at high speed, causing their impact on a surface.

The initial objective was to remove paint, rust (oxidation) and contaminating materials. But, the method also proved its efficiency in clearing and cleaning machines and buildings.

The first patent was known and listed in 1870 (US patent 108,408.), In the United States and, since then, the basis for the creation of hydrojetting has been created.

Today, blasting is found more frequently in the industrial sector and has started to be carried out in other ways, such as through hydrojetting, which uses water exclusively to obtain the desired cleaning results.

In addition, it is important to note that hydrojetting offers many advantages in its use. It is agile, efficient and does its job without causing damage or changes in the application site.

Without the use of abrasives and chemicals, hydrojetting is a safe way to clean different machines, pipes and prepare surfaces.

History of the high pressure pump

The creation of the first high pressure pump, the main component of hydrojetting equipment, was inspired by the needs of agriculture. The first records come from irrigation. The Egyptians initially transported water in clay pots. But, around 2.000 BC, the first water-lifting machine was built by pitchers tied to a rope. Then came the windlass, the daughter-in-law and the Persian wheel.

However, all of these machines were powered by human or animal labor.

The first alternative pump was invented around 250 BC and operated through a water wheel in Greece and ancient Rome.

At the beginning of the 60th century, in Europe, the first water pumping machines with higher pressures (up to XNUMX bar) began to appear. But, the flow was not constant.

Since then, a lot has changed until the pumps arrived at the models and functions we know today.


Differences between abrasive blasting and hydrojettingo

As we have already told you throughout the text, hydrojetting emerged from an abrasive blasting process, more commonly known as sandblasting.

However, there are some differences between the two processes. Check out what distinguishes each method below!

Abrasive blasting

Firstly, abrasive blasting is a procedure normally used in structures made of iron, steel and other metals, to remove rust, old paint and lamination scale, and to open the anchoring profile.

Likewise, the method is also used to create roughness in granites, marbles and other stones, and for general cleaning of concrete and facades.

Thus, the service is efficient in removing the layer of oxides and other substances, through the use of abrasives designed with high pressure compressed air (60 bar).

The abrasive blasting process uses substances such as copper slag and steel grit and, therefore, it has disadvantages such as the suspension of particles in the air, which can cause damage to the environment and contamination of the seabed. And yet, it requires health care from operators.

At the end of the abrasive blasting application, it is necessary to wash the surfaces with high pressure equipment to remove salts and other contaminants that may have penetrated the profile (anchoring / roughness) of the surface.


In the case of hydrojetting, it complies with several new environmental laws and standards, for example, ISO 14000, BS 8000 and ISM CODE. This process uses only water without any solid or chemical elements.

Therefore, the main differences between the two procedures are in the material used and in its relationship with the environment and the operator.

Thus, this alternative is favorable for those who will handle the equipment, as it does not offer risks and exposures to chemical materials.

Likewise, the work, which is normally carried out at high pressure, does not damage equipment and surfaces, as it only removes layers of paint and unwanted materials.

Therefore, hydrojetting is a process widely used for cleaning, surface preparation and for removing dirt on machines, equipment, structures and pipes.

In addition, it is worth remembering that the service is currently used in different segments such as:

  • Cement industry;
  • Sugar and alcohol industry;
  • Construction;
  • Mining;
  • Shipbuilding industry;
  • Oil platforms;
  • Basic sanitation;
  • Airport industry;
  • Auto Industry;
  • Cold hydrocutting;
  • Petrochemical industry.

The trajectory of LEMASA

Our trajectory began in 1989, in the city of São Paulo, in a rented garage, with a Parati. We had only a lathe and a tool mill, which helped us to create rotating nozzles for internal tube cleaning, which would later evolve to the well-known T and B nozzles.

At the turn of the century, in 2000, the move to Indaiatuba took place. Moving on in 2011 to an area of ​​more than 7.000 m², thus establishing the most modern high and ultra high pressure pump plant in Latin America.

In 2014, LEMASA began its transition to, in 2020, being fully incorporated into the Comet SPA Group, in Italy, to which the companies HPP, Tecomec and Lavor Wash already belonged.

Today, we have accumulated more than 2500 pumps manufactured in Brazil and supplied in our country and in the world. There are more than 50 product registrations, including worldwide patents. In addition, we add more than 3 million hours of continuous operation of our products.

Today, we provide solutions for the main and largest companies in the most diverse segments, such as: sugar and alcohol, petrochemical, automobile, naval, oil, basic sanitation, food, airports, mining, among others.

From our founders, we are committed to making quality products suited to the needs of our customers and to keep innovating. From the Comet SPA Group, we bring the spirit of perpetuating good relations and go to great lengths in serving our customers.

If you liked to know a little more about the history of hydrojetting and the high pressure pump, we are sure that you will be interested in other texts on our blog.

In fact, we have content that reveals 3 applications of waterjet services. Click here and learn more!

Leave your comment:

Your email address will not be published. Required fields are marked with *


R. Valdir Roberto de Camargo, 70
Rec. Campestre Jóia - Indaiatuba - SP
Tel: +55 (19) 3936-8555

LEMASA - Três Lagoas

Avenue Eloy Chaves, 690 - Room 07 Centro,
ZIP CODE: 79602-000 Três Lagoas/MS
Phone: + 55 (67) 3522 7325
Cell phone: (67) 9 8100-0173

LEMASA - Macaé

Avenue Evaldo Costa, 1045 Bairro Sol Y Mar
ZIP Code: 27940-410 - Macaé / RJ
Phone: + 55 (22) 2773 3493
Cell phone: (22) 9 9705-7918

LEMASA - São José do Rio Preto

Street Uber Folchine, 631 Parque Industrial Campo Verde
ZIP Code: 15076-155 - São José do Rio Preto/SP
Phone: + 55 (17) 3513 5851