As effective as they are sustainable
We use Airwalls to separate air to control temperatures, save energy and keep out unwanted elements such as odors, moisture, dust, gas, viruses or bacteria.Thermal Insulation
We protect doors and gates against heat loss, especially against cold draughts
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Odor and smoke control
We keep unpleasant odors, hazardous gases or disturbing dust away from production halls or sales areas and keep escape routes free of smoke
See SolutionProtection against Insects
Reliable insect protection for doors and gates is required in the production of food, packaging and more
See SolutionCold insulation
We separate cooled and dry air from warm and humid air with a precise barrier
See SolutionThermal Separation
The barrier-free separation allows employees, forklift trucks or autonomous logistics vehicles to pass through effortlessly
See SolutionReferences
Since 1996.
Over 2,000 installations in many industries and 12 countries.
Click for 90 other satisfied customers.
Click for many fotos of installed and operational Airwalls.
Technical Capabilities
<= 5,4 m/s
Wind Speed
(Gentle breeze 3, operational)
<50 m/s
Velocity Airwall
(Max, tested)
<600 °C
Thermal Difference
(Max, tested)
+10 m
Width
(in operation)
Find out in our casebooks how Airwalls ...
- reduce your energy consumption in the commercial sector,
- seal access points barrier-free without making them impassable for employees,
- increase well-being in the workplace and
- prevent accidents at doors and gates.
Why LWT
Collaborative team
We offer comprehensive expertise quickly and easily. We integrate a large network into our multinational team.
Research and development
We analyze carefully, carry out experiments and simulate with digital twins in CFD. This enables us and our products to continuously improve.
Proven approach
We apply a systematic, analytical methodology that leads to reliable results, optimal timing and economic efficiency.
Full service
We offer consulting, planning, logistics and construction. Our systems run indefinitely with annual maintenance by our trained specialists or partners.
LWT and Sustainability
Environment
Airwalls stand for considerable heat savings. We efficiently keep wrong air out of buildings. This reduces the energy consumption of your HVAC.
Social responsibility
The wellbeing of employees matters. Especially in times of shortage of skilled workers. Less accidents, no draught, and the right temperature increases wellbeing of and reduces sickness rate among your colleagues.
Governance
Many companies are busy complying with norms and standards. We help reducing the pain.
SDGs - Goals and status
We are a member of United Nations Global Compact and strive to implement global Sustainable Development Goals (SDGs). We report and our goals and the status:
We show you your energy saving potential
With just a few details from your company, we can show you exactly how much energy you would save by using Airwalls - without obligation, with free advice included.
FAQ
Airwalls are systems that accelerate air to high speeds with the help of fans and compress it into a thin jet via a patented nozzle (pressure linear module). The generated air jet prevents layers of air from mixing. Our units can be mounted on the side of gates or above doors. The air jet then separates the air over the entire height. This keeps cold air outside in winter, for example, and does not cool the air indoors. Airwalls are modular and therefore have a lot of planning freedom. They can therefore also be retrofitted without any problems.
Air curtains have a lower air velocity and need a large volume of air to function. As a result, air curtains do not separate different layers of air, but mix them. As a result, if they are used to keep warm air indoors, for example, they need much more energy because they have to heat more air and the heated air mixes directly with the cold outside air. Our systems, on the other hand, work with a small volume of air at high speed and can thus reliably keep air milieus apart. This makes airwalls more energy-efficient and helps companies achieve climate protection goals.
Our Airwall Compact can be installed by customers themselves. For larger installations like our Airwall Grand, we work together with customers to plan the project, manage the installation and control the result. We work together with long-standing partners who take care of the optimal installation with a lot of expertise and enthusiasm. All planning steps are transparent and discussed with customers. Depending on the size and other general conditions, however, the installation can take different lengths of time.
Since airwalls reduce energy consumption in the long term, an investment usually pays off after a short time. The payback depends on the type of use, the size of the doors and the building, as well as energy prices. The mix of energy sources for electricity also plays a decisive role. However, most of our air walls pay for themselves very quickly. They are beneficial for the climate from the very first minute.