smart living technology More than Just a filter

The StingR is a highly intelligent, sophisticated system for maintaining the technological balance – so it’s more than just a filter.

Join us on an exciting journey into a new century of industrial production with a focus on the protection of resources and the preservation of our unique living space.

Highly sensitive Highly sensitive

Highly sensitive
High filter sensitivity in the micrometre range (<1 µm)

Can be used for oil (also highly viscous), aqueous solutions, emulsions as well as water, for instance for machining HSS, hard metals and mixed machining.

Economical Economical

Low follow-up costs

The StingR delights thanks to the extremely long service life of its filter elements, high system availability and minimal energy costs.

Efficient Efficient

Low investment costs

Fast amortisation of investment costs and high litre capacities in the smallest installation space make the StingR indispensable.

Highly intelligent Highly intelligent

Highly intelligent
Allowing adaptation of specific modules

Can be used for processes such as grinding, honing, lapping, eroding and machining.

Sustainable Sustainable

Allowing more than 10,000 cycles

Can be used for oil, also highly viscous, aqueous solutions and water, e.g. when machining HSS, hard metals and mixed machining.

Support Support

Worldwide 24/7service

Our team of highly qualified engineers and technicians is available around the clock for advice and counsel.

Many Possible Applications
Our Sectors

The systems can be equipped with different filter technologies from our company based on their specific application:

These are used in a large number of applications in the following industries, for example:

Machine tools – & mechanical engineering Icon Machine tools – & mechanical engineering

Machine tools – & mechanical engineering

We are a long-standing and reliable partner for manufacturers and users of machine tools of all kinds.

Chemical industry Icon Chemical industry

Chemical industry

Together with our customers, we develop special solutions for their production and fields of application in filtration.

Environmental plant engineering Icon Environmental plant engineering

Environmental plant engineering

Through research and development with our environmental technology partners, we create high-end special filtration applications for promising new developments.

Water treatment Icon Water treatment

Water treatment

We supply industrial filtration solutions for manufacturers and users of water treatment plants.

How the StingR filter unit works

Parallax Image
Parallax Background Image

Unique technology
for tailored applications

For millions of years, our world has been surrounded by huge areas of water.
Oceans cover more than two thirds of our planet and are essential for life on earth.

Water is the basis of all life and therefore more precious than gold.
In order to preserve this, a highly intelligent and sophisticated system is needed to maintain the natural balance and thus the habitat of all the species that our earth contains.
Organisms that have been living on the planet for over 800 million years clean and filter these incredible amounts of water every day. Inspired by their unique technology, we at Lehmann-UMT research and develop sustainable solutions, among other things in the field of ultra-sensitive filter technology, thus ensuring that our resources are conserved and that this world is preserved in the form we know it.

StingR … smart living technology

Litres per minute


m² of filter surface area

Possible applications

Our services
at a glance

Together with you, we develop a system solution for optimum process reliability and performance.

We make the filtration visible and configure your optimal filtration process.

We train you in the handling of your applications and our products.

Highly qualified technologists and service technicians will be by your side during the commissioning of your system.

Our team of highly qualified engineers and technicians is available around the clock to advise you.

    Any questions?
    Please contact our support.