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the high performance long distance runners - the design for Reliability


ten thousands of Hammelmann high pressure pumps are operating worldwide and in almost all branches of industry.

whether running around the clock or just intermittently what counts for our customers are energy efficiency, reliability, performance, service and innovative solutions.

The company founded 1949 in Oelde, Westphalia by Paul Hammelmann took the decision to start manufacturing high pressure pumps and systems during 1955 laying the foundations of the current business. Hammelmann was a pioneer in the industry that was then known as Hydrodynamics and was responsible for many important breakthroughs. 

Up to now over 300 patents have been granted both at home and abroad which are a sign of the continuous, innovative development that has been part of our policy for decades.

In endeavouring to solve individual problems and come up with reliable solutions the company has grown from modest beginnings into an internationally recognised manufacturer of high pressure technology products. The works in Oelde cover an area of 30,000 square metres.

The DP 60 was the first pump produced in Oelde. It had an operating pressure of 60 bar and a flow rate of 60 l/min and was used in a cleaning system in the paper industry. Today we can achieve operating pressures up to 4,000 bar and flow rates up to 1680 l/min.

Years and years ago the point of fitting a cover over a high pressure unit was just that. Today the covers have more to do with sound and exhaust emission control. Hammelmann also supplies individual elements such as dust particle filters and microprocessor control units.

During the mid sixties operating pressures were up to around 500 bar. In 1974 Hammelmann revolutionised high pressure technology with the introduction of the friction free plunger seal assembly. This metal to metal seal enabled plunger pumps to reach operating pressures up to 2,000 bar and have a reasonably long component working life.

In 1969 Hammelmann started marketing the Dockmaster as the first semiautomatic ship washing machine. Today’s version of the unit is environmentally friendly with direct vacuuming of waste and waste water which is used to strip paint from hulls rather than clean them. It has also been used for selective removal of concrete.



Tools with optimised flow characteristics reduce energy consumption and make full use of the operating pressure.

Result: the total energy used is reduced.


Hammelmann cleaning systems are reliable modules for integration into production processes and machinery. Famous companies rely on our technology.


The number, arrangement and angle of nozzles on surface blasting and nozzle holder systems are worked out using the latest simulation programs. This ensures a highly effective use of energy.

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User-friendly water blasting tools increase safety when working and allow the operator to work for longer periods of time and with greater concentration.


Hammelmann application systems can be adapted to individual cleaning requirements.
The RD Flex rotor jet for example can be adjusted to work at different rotation speeds without the need for tools.

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Precision tools are required for cleaning and de-burring very small bores and intercepting bores.
Automobile manufacturers worldwide rely on Hammelmann's high pressure technology.


Cleaning systems with direct vacuuming of removed waste material and water plus filtering have long been Hammelmann's hallmark for "green competence".

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Turning new ideas into practical water blasting tools is what our applications engineers do every day, whether on the customer’s site or in our flexible and efficient technology centre.


Take Hammelmann's ship cleaning systems for example. These can be used following just a short set-up time and quickly remove a large amount of coating from metal surfaces.

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The main aim of our company policy is to supply our customers with high value products and services. This aim binds three important factors together, Quality, Performance and Safety or putting it another way : Quality is when the customer comes back and not the product.

Every employee at Hammelmann is responsible for his or her own performance. Support is provided by a quality management system that discovers faults or mistakes early enough and analyses the cause to ensure that they are not repeated in the future. 

We also demand very high quality from our suppliers, sub contractors and other business partners. We act as a partnership in our common pursuance of achieving all aspects of quality.

Hammelmann is recognised world wide for high quality products. We have a duty to maintain our high standards and see this as an ongoing commitment. Through initial teaching and ongoing training of our employees and continual investment in ultra-modern machinery, we are determined to continue to offer quality premium products "Made in Germany".

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