"CAN'T BE DONE" IS NOT IN OUR VOCABULARY! We manufacture our door and gate air curtain systems using state-of-the-art CNC sheet metal processing machines, but also with a great deal of handwork and attention to detail—all on a "just-in-time" basis. We do not maintain elaborate or costly inventories. Short delivery times and maximum flexibility are guaranteed. “Can’t be done” isn’t in our vocabulary! For years, we’ve viewed customer requests as a challenge to be met. All our products are manufactured with the utmost care by our experienced production staff, who have been with us for many years, and undergo a documented final inspection.

CUSTOM SOLUTIONS AS OUR BENCHMARK TEKADOOR focuses on precise functionality and top quality, high comfort, ease of maintenance, and—above all—energy efficiency. We were meeting the standards of the Ecodesign Directive (ErP) long before it went into effect. Nearly all of our product lines are equipped with highly energy-efficient EC motors. In addition to our standard products, we are also happy to implement individual, custom solutions—quickly and with absolute reliability! For many years, we have been the partner of choice for design firms, architects, contractors, general contractors, and building operators. From planning and design through production, we take care of bringing your vision to life—for an entrance area that offers high comfort without energy loss.

Meeting individual customer needs Optimal energy efficiency Highest quality standards with the most technically innovative solutions Commitment and a service-oriented approach Versatility of equipment in terms of function and design Extremely short delivery times Coverage of all application areas for retail and industry A reliable and competent partner Years of experience On-time delivery

The air volume (V0) discharged at an initial temperature of, for example, +34 °C (tA) draws in ambient air from both sides of the jet—depending on the mixing factor (m)—starting at the outlet. In the door area, these are the outdoor and indoor air components. Due to this physical behavior, the initial air volume increases to the total volume of air moved by the jet. Both the initial velocity of the air jet and the initial temperature decrease in the process. In our air curtain units, the initial parameters are calculated so that, on the one hand, a residual velocity of approximately 1 m/s or more remains after the desired jet length, and on the other hand, the room temperature—i.e., approximately +20°C—is maintained. Only in this way can effective operation be guaranteed.

The optimized Jetflow air outlet nozzle is characterized by the wide range of adjustment for the air discharge angle and its adaptive asymmetrical nozzle cross-section. The deliberately chosen asymmetrical adjustment of the Jetflow air-guiding profiles results in the following specific advantages: a uniformly guided air stream with a greater throw distance low noise levels significantly improved shielding performance in critical situations longer airflow path and thus more stable air conditions the nozzle cross-section adapts to the discharge angle multiple discharge angle settings without the need for tools

TEKADOOR units use only high-quality fans from the manufacturer ebm-papst, made in Germany. With the exception of the TIC industrial air curtains (axial fans), TEKADOOR always uses double-inlet radial fans. The advantage of this fan lies in its relatively low noise level combined with its compact size. All fans used by Tekadoor not only comply with the ErP Directive (minimum efficiency requirements for fans within the EU) but actually exceed these requirements. Most of our door air curtains are supplied with fans featuring the proven Green-Tech EC technology from ebm-papst. Their efficiency in part-load operation is >90%, approximately 30–35% higher than that of conventional AC motors. This not only increases efficiency but also reduces operating costs. In addition, EC fans offer further advantages, including soft start (resulting in a longer service life), lower noise levels, anti-stall protection, over-temperature protection for the electronics, and motor protection even at 60 Hz, among others.

Tekadoor Türluftschleier werden standardmäßig mit einer hochwertigen Steuerung mit Touch-Display ausgeliefert. Außer den Industrietorluftschleiern der Baureihe THI und den DX-Geräten verfügen alle anderen Baureihen über oben genannte Auswahlmöglichkeiten der elektronischen Steuerung. Eine Ansteuerung über ein ModBus-Modul sowie die Ansteuerung über ein 0-10 Volt-Signal sind ebenfalls möglich. Nachfolgend eine Auswahl der eingesetzten TEKADOOR Steuerungen Standard-Steuerung CAT 300 EC Elektronische LED Steuerung für TEKADOOR-Luftschleier mit PWW – Heizung und energiesparenden EC-Ventilatoren. Die Steuerung verfügt standardmäßig über einen 5-stufigen Betrieb der Ventilatorsteuerung; die Ventilatorstufen können individuell vom Betreiber gewählt werden. Auf dem Bedienteil CAT LED sind die jeweiligen Betriebsmodi und Symbolanzeigen übersichtlich angeordnet. Standardmäßig wird die Raumtemperatur angezeigt. Die Raumtemperaturerfassung erfolgt serienmäßig über einen internen Temperatursensor im Bedienteil. Eine Auswahl verschiedener Betriebsarten ist durch einfache Menüführung möglich: Hand – manueller Handbetrieb Auto AS – Automatikbetrieb über Auskühlschutz Auto RT – Automatikbetrieb über Raumtemperatur Auto TK – Automatikbetrieb über Türkontakt Auto AT – Automatikbetrieb über konstante Ausblastemperatur (opt. elektr. Regelventil erforderlich) Auto Kombi – Kombinationsmöglichkeit aller einzelnen Automatikbetriebe Für die Ansteuerung über eine bauseitige DDC bzw. GLT stehen ein Freigabekontakt und potentialfreie Betriebs- und Störmeldungen zur Verfügung. Fehlermeldungen und Störungen werden mit einer leuchtenden LED angezeigt. Die CAT EC Steuerplatine erkennt selbständig eine mögliche Parallelschaltung mit mehreren Geräten; so können bis zu 10 Türluftschleier über 1 Bedienteil im Master / Slave-Prinzip parallel betrieben werden. Die Steuerplatine ist im Türluftschleiergerät eingebaut und ein 20m vorkonfektioniertes Datenkabel (Verbindung zwischen Türluftscher und Bedienteil) ist im Lieferumfang enthalten. Steuerung CAT 300 E EC Elektronische LED Steuerung für TEKADOOR-Luftschleier mit Elektroheizregister und energiesparenden EC-Ventilatoren. Die Steuerung verfügt standardmäßig über einen 5-stufigen Betrieb der Ventilatorsteuerung; die Ventilatorstufen können individuell vom Betreiber gewählt werden. Das Elektroheizregister ist 3-stufig zuschaltbar. Auf dem Bedienteil CAT LED sind die jeweiligen Betriebsmodi und Symbolanzeigen übersichtlich angeordnet. Standardmäßig wird die Raumtemperatur angezeigt. Die Raumtemperaturerfassung erfolgt serienmäßig über einen internen Temperatursensor im Bedienteil. Eine Auswahl verschiedener Betriebsarten ist durch einfache Menüführung möglich: Hand – manueller Handbetrieb Auto AS – Automatikbetrieb über Auskühlschutz Auto RT – Automatikbetrieb über Raumtemperatur Auto TK – Automatikbetrieb über Türkontakt Auto AT – Automatikbetrieb über konstante Ausblastemperatur (opt. elektr. Regelventil erforderlich) Auto Kombi – Kombinationsmöglichkeit aller einzelnen Automatikbetriebe Für die Ansteuerung über eine bauseitige DDC bzw. GLT stehen ein Freigabekontakt und potentialfreie Betriebs- und Störmeldungen zur Verfügung. Fehlermeldungen und Störungen werden mit einer leuchtenden LED angezeigt. Die CAT EC Steuerplatine erkennt selbständig eine mögliche Parallelschaltung mit mehreren Geräten; so können bis zu 10 Türluftschleier über 1 Bedienteil im Master / Slave-Prinzip parallel betrieben werden. Die Steuerplatine ist im Türluftschleiergerät eingebaut und ein 20m vorkonfektioniertes Datenkabel (Verbindung zwischen Türluftscher und Bedienteil) ist im Lieferumfang enthalten. Steuerung CAT 300 PTC EC Elektronische LED Steuerung für TEKADOOR-Luftschleier mit PTC-Elektroheizregister und energiesparenden EC-Ventilatoren. Die Steuerung verfügt standardmäßig über einen 5-stufigen Betrieb der Ventilatorsteuerung; die Ventilatorstufen können individuell vom Betreiber gewählt werden. Die PTC-Heizregister sind einstufig zuschaltbar. Auf dem Bedienteil CAT LED sind die jeweiligen Betriebsmodi und Symbolanzeigen übersichtlich angeordnet. Standardmäßig wird die Raumtemperatur angezeigt. Die Raumtemperaturerfassung erfolgt serienmäßig über einen internen Temperatursensor im Bedienteil. Eine Auswahl verschiedener Betriebsarten ist durch einfache Menüführung möglich: Hand – manueller Handbetrieb Auto AS – Automatikbetrieb über Auskühlschutz Auto RT – Automatikbetrieb über Raumtemperatur Auto TK – Automatikbetrieb über Türkontakt Auto AT – Automatikbetrieb über konstante Ausblastemperatur (opt. elektr. Regelventil erforderlich) Auto Kombi – Kombinationsmöglichkeit aller einzelnen Automatikbetriebe Für die Ansteuerung über eine bauseitige DDC bzw. GLT stehen ein Freigabekontakt und potentialfreie Betriebs- und Störmeldungen zur Verfügung. Fehlermeldungen und Störungen werden mit einer leuchtenden LED angezeigt. Die CAT EC Steuerplatine erkennt selbständig eine mögliche Parallelschaltung mit mehreren Geräten; so können bis zu 10 Türluftschleier über 1 Bedienteil im Master / Slave-Prinzip parallel betrieben werden. Die Steuerplatine ist im Türluftschleiergerät eingebaut und ein 20m vorkonfektioniertes Datenkabel (Verbindung zwischen Türluftscher und Bedienteil) ist im Lieferumfang enthalten. Maße: 155 x 90 x 30 mm

MODBUS RTU Module 92781900 (circuit board) for on-site control via an existing on-site MODBUS system. MODBUS RTU Module 92781900 + short cable compatible with the GTC controller. (Control unit and 20 m data cable are not included) The RTU module operates in master-slave mode, making its data accessible in the form of registers. To access these registers via MODBUS, the settings of the included protocol must be used.

Things to Know

Here you'll find answers to frequently asked questions about our technologies, our company, and our services.
Concise, informative, and straight to the point.

General

History

Founded in 1981 in Leichlingen (Rhineland), we have grown to become one of Europe’s leading providers of air curtain systems for doors and gates. Our continuous growth led us to relocate our production facility to the neighboring town of Langenfeld in 2005. Since 2010, both our production and administrative operations have been housed in a modern, expanded company building there.

From our facility in Langenfeld, we distribute our products worldwide—all “Made in Germany,” of course. Ensuring the long-term future of our facility and preserving local jobs are of great importance to us. That is why we have remained loyal to our Rhineland home since our founding.

Production

"CAN'T BE DONE" IS NOT IN OUR VOCABULARY!

We manufacture our door and gate air curtain systems using state-of-the-art CNC sheet metal processing machines, but also with a great deal of handcraftsmanship and attention to detail, on a “just-in-time” basis. We do not maintain elaborate or costly inventory.
Short delivery times and maximum flexibility are guaranteed.

"Can't be done" isn't in our vocabulary! For years, we've viewed our customers' requests as challenges to be met. All of our products are manufactured with the utmost care by our experienced production staff, who have been with us for many years, and undergo a documented final inspection.

Our Mission

CUSTOM SOLUTIONS AS THE STANDARD

TEKADOOR focuses on precise functionality and top quality, high comfort, ease of maintenance, and, above all, energy efficiency. We met the standards of the Ecodesign Directive (ErP) long before it went into effect. Nearly all of our product lines are equipped with highly energy-efficient EC motors. In addition to our standard products, we are happy to develop customized, client-specific solutions—quickly and with absolute reliability! For many years, we have been the go-to partner for design firms, architects, contractors, general contractors, and building operators. From planning and design through to production, we take care of bringing your vision to life—for an entrance area that offers a high level of comfort without energy loss.

Advantages

Meeting Individual Customer Needs
Optimal energy values
The highest quality standards combined with the most technically innovative solutions
Commitment and a service-oriented approach
Variability of devices in terms of function and design
Extremely short delivery times
Coverage of all application areas for retail and industry
A Reliable and Competent Partner
Years of experience
On-Time Delivery

Hours of Operation

Our hours of operation are as follows:

Monday: 7:00 a.m.–5:00 p.m.
Tuesday: 7:00 a.m.–5:00 p.m.
Wednesday: 7:00 a.m.–5:00 p.m.
Thursday: 7:00 a.m.–5:00 p.m.
Friday: 7:00 a.m.–2:00 p.m.

Warranty

Our warranty period is 2 years—beginning no later than 6 weeks after delivery.

Technology

Heating capacity

The volume of air (V0) discharged at an initial temperature of, for example, +34 °C (tA) draws in ambient air from both sides of the airflow—depending on the mixing factor (m)—starting at the outlet. In the door area, these consist of outdoor and indoor air.

As a result of this physical behavior, the initial volume of air increases to the total volume of air moved by the jet. Both the initial velocity of the air jet and its initial temperature decrease in the process.

For our air curtain units, the output parameters are calculated so that, on the one hand, a residual velocity of approximately 1 m/s or more remains after the desired jet length has been reached, and, on the other hand, the room temperature—that is, approximately +20°C—is maintained. This is the only way to ensure effective operation.

Dual Technology

Two rows of fans generate two airflows inside—
an outer (unheated) and an inner (heated) airflow.
Separate airflow channels extend all the way to the air outlet. In this process,
the unheated outer airflow has a stabilizing effect on the
overall flow behavior, resulting in a greater throw distance
and optimized air curtain performance. Compared to
conventional air curtains, the reduction in heating power
is approximately 40%.

Louvered Air Discharge System

The louvered air discharge system is the oldest of our air discharge systems. It consists of one or more adjustable, teardrop-shaped aluminum louvers. Because the angle of each individual louver can be adjusted, the direction of airflow can be customized. The vanes produce a uniform, low-turbulence air jet that extends across the entire length of the unit. This airflow system is best suited for standard applications requiring normal levels of heating and shielding performance.

Jetflow Air Nozzle

The optimized Jetflow discharge nozzle is characterized by the wide range of adjustment options for the discharge angle as well as its adaptive asymmetric nozzle cross-section. The deliberate asymmetric adjustment of the Jetflow air guide profiles results in the following unique advantages:

a uniformly directed air jet with a longer throw distance
low noise level
Significantly improved shielding performance in critical situations
longer airflow path, resulting in more stable air quality
The nozzle cross-section adjusts to the discharge angle
Multiple adjustments to the airflow angle without tools

Coanvara-Flow Blow-Out Nozzle

The Coanvara Flow discharge nozzle is a multi-nozzle system with optimized profile flanks and parallel adjustment of the discharge angle by 15° in both directions. By combining the individual jets according to the Coanda effect, an extra-wide air jet is created. The extra width results from the sum of the individual jets and the profile widths between them. The elongated profile flanks also act as rectifiers. The dynamic pressure produces a homogeneous jet pattern.

With its wide air jet, this blow-off system provides highly effective heating performance resulting from the Coanda effect between the individual jets. The overall jet, which has a desired low jet load factor (mixing factor), carries the selected initial temperature a great distance into the room and reaches the floor area while still at room temperature. This is essential to prevent the rooms from cooling down.

TWINtec® Counter-Current Principle

The TWINtec® counterflow principle generates an upstream, lightly
conditioned air curtain that blocks cold air directly at the door and
separates the climate zones. The inner, counter-rotating air roller blows warm air with
a significantly greater mass flow. This creates counter-directional
air curtain streams that are mutually stabilized by the depth effect
and thereby achieve greater throw distances and effectively prevent
cold air from penetrating, even at floor level. Thanks to the effective
and widely adjustable Synchrostream long-range nozzles, the airflow
is directed toward the floor more precisely and effectively than with conventional
air curtain systems. The result: optimal energy savings, comfort,
even in the entryway, and more usable floor space—the
pays off!

Housing

The various model-specific housing designs of our air curtains are manufactured as standard from galvanized sheet steel, some of which is plastic-coated. A variety of surface treatment processes are used, such as powder coating in all standard colors.

Upon request, the housings can also be made of stainless steel. Custom lengths and special requests are available upon inquiry.

Heat Exchanger

In TEKADOOR systems, air intake and heating always take place via the heat exchanger located on the intake side. To achieve an outlet temperature of approximately 34°C, the surface area of the heat exchanger is designed according to the available heating medium temperature.

Fans

TEKADOOR units use only high-quality fans from the manufacturer ebm-papst, Made in Germany.
With the exception of the TIC industrial air curtains (axial fans), TEKADOOR always uses double-inlet centrifugal fans. The advantage of this fan lies in its relatively low noise level combined with its compact size. All fans used by Tekadoor not only comply with the ErP Directive (minimum efficiency requirements for fans within the EU) but actually exceed these requirements. Most of our door air curtains come standard with fans featuring the proven Green-Tech EC technology from ebm-papst. Their efficiency in partial-load operation is >90%, approximately 30–35% higher than that of conventional AC motors. This not only increases efficiency but also reduces operating costs. In addition, EC fans offer further advantages, including soft start (resulting in a longer service life), lower noise levels, anti-stall protection, over-temperature protection for the electronics, and motor protection even at 60 Hz, among others.

Intake grille

Depending on the type and model, our air curtains use different intake grilles and grille shapes. We distinguish between an aluminum slatted grille with a reusable filter and a filterless fine-perforated grille or microgrille.

Pressure and Equalization Chamber

The air drawn in by the fan through the heating coil is blown into a pressure/equalization chamber. This chamber is located immediately upstream of the outlet nozzle and, in conjunction with the outlet nozzle, serves to create a laminar airflow with constant pressure across the entire outlet width. This also means that the proportion of turbulent flow is reduced. The higher the back pressure that can be generated by a nozzle, the easier it is to achieve a laminar airflow.

Installation Options

In principle, an air curtain system can be installed in plain view, flush with the ceiling, or within a suspended ceiling. If the air curtain is installed within a suspended ceiling, connectors or sliding connectors are required for air distribution. For suspended installation, a distinction is made between an SLW model (standard air curtain) with intake on the room side and an ULW model (reversed air curtain) with intake on the door side. Our Secon and Contur series are ideally suited for ULW installation. Our Colum and Wing designer air curtains were developed specifically for vertical and Dual applications, while the Ellipse and Nouveauline series are designed for horizontal, visible installation. The Zephyr, Secon, and Contur air curtain series can be installed either in plain view or recessed into the ceiling. Only the Zephyr and Dual cassette series are suitable exclusively for flush-to-ceiling installation.

Parallelogram of Forces

Air is expelled vertically

The resultant force in the parallelogram of forces is directed inward. As a result, outside air flows inside and cools the interior spaces.

Air is blown in the opposite direction of the wind

The resultant force in the force parallelogram is directed vertically. As a result, outside air does not enter the interior, and warm indoor air does not escape to the outside. The temperature remains constant.

Control Assignment

Depending on the model, TEKADOOR air curtains are connected via compatible control and regulation units. Here is an overview.

CAT Control System

Tekadoor air curtains come standard with a high-quality control unit featuring a touchscreen display. With the exception of the THI series industrial air curtains and the DX models, all other series offer the electronic control options listed above. Control via a ModBus module and via a 0-10-volt signal are also possible.

Below is a selection of the TEKADOOR control systems used

CAT 300 EC Standard Controller

Electronic LED control unit for TEKADOOR air curtains with PWW heating and energy-saving EC fans.
The control unit features a 5-speed fan control as standard; the fan speeds can be selected individually by the operator.
The respective operating modes and symbol displays are clearly arranged on the CAT LED control panel. The room temperature is displayed by default.
Room temperature is measured as standard via an internal temperature sensor in the control panel.
A selection of different operating modes is possible via simple menu navigation:

Manual – manual operation
Auto AS – automatic operation via anti-cooling protection
Auto RT – automatic operation via room temperature
Auto TK – automatic operation via door contact
Auto AT – automatic operation via constant discharge temperature (optional electric control valve required)
Auto Combi – option to combine all individual automatic operating modes

An enable contact and potential-free operating and fault signals are available for control via a customer-supplied DDC or BMS.
Error messages and faults are indicated by a lit LED.
TheCAT EC control board automatically detects a possible parallel connection with multiple devices; allowing up to 10 air curtains to be operated in parallel via a single control panel using the master/slave principle.
The control board is built into the air curtain unit, and a 20-meter pre-assembled data cable (connecting the air curtain to the control panel) is included in the scope of delivery.

CAT 300 E EC Control System

Electronic LED control unit for TEKADOOR air curtains with electric heating coils and energy-saving EC fans.
The control unit features a 5-speed fan control as standard; the fan speeds can be selected individually by the operator.
The electric heating coil can be activated in 3 stages.
The respective operating modes and symbol displays are clearly arranged on the CAT LED control panel. The room temperature is displayed by default.
Room temperature is measured as standard via an internal temperature sensor in the control panel.
A selection of different operating modes is possible via a simple menu navigation system:

Manual – manual operation
Auto AS – automatic operation via overcooling protection
Auto RT – automatic operation via room temperature
Auto TK – automatic operation via door contact
Auto AT – automatic operation via constant discharge temperature (optional electric control valve required)
Auto Kombi – option to combine all individual automatic operating modes

An enable contact and potential-free operating and fault signals are available for control via a customer-supplied DDC or BMS.
Error messages and faults are indicated by a lit LED.
The CAT EC control board automatically detects a potential parallel connection involving multiple units; this allows up to 10 air curtains to be operated in parallel via a single control panel using the master/slave principle.
The control board is built into the air curtain unit, and a 20-meter pre-assembled data cable (connecting the air curtain to the control panel) is included in the scope of delivery.

CAT 300 PTC EC Controller

Electronic LED control unit for TEKADOOR air curtains with PTC electric heating elements and energy-saving EC fans.
The control unit features a 5-speed fan control as standard; the fan speeds can be selected individually by the operator.
The PTC heating coils can be activated in a single stage.
The respective operating modes and symbol displays are clearly arranged on the CAT LED control panel. The room temperature is displayed by default.
Room temperature is measured as standard via an internal temperature sensor in the control panel.
A selection of different operating modes is possible via simple menu navigation:

An enable contact and potential-free operating and fault signals are available for control via a customer-supplied DDC or BMS.
Error messages and faults are indicated by a lit LED.
The CAT EC control board automatically detects a possible parallel connection with multiple units; this allows up to 10 air curtains to be operated in parallel via a single control panel using the master/slave principle.
The control board is built into the air curtain unit, and a 20-meter pre-assembled data cable (connecting the air curtain to the control panel) is included in the scope of delivery.

Dimensions: 155 x 90 x 30 mm

HATI

5-speed industrial air curtain, 400 V. 5-speed speed controller, TYPE HATI. 400 V / 50 Hz in accordance with VDE 0550, in an enclosure with a step switch, fault and operation indicator lights, a restart interlock for full motor protection, manual/automatic switch, and a contactor for an external signal transmitter (e.g., door contact). Enable contact for on-site DDC, potential-free operation and fault signals.

MODBUS Module

MODBUS RTU Module 92781900 (circuit board) for on-site control via an existing on-site MODBUS system.
MODBUS RTU Module 92781900 + short cable compatible with the GTC controller. (Control unit and 20 m data cable not included)
The RTU module operates in master-slave mode, making its data accessible in the form of registers. To access these registers via MODBUS, the settings of the supplied protocol must be used.

0–10 V Control

Circuit board for on-site 1.7–10 V control
Module for on-site 1.7–10 V control to convert the signal to a PWM signal. CAUTION: Be sure to observe the fans’ control range of 1.7 to 10 volts! The maximum voltage of 10 V must not be exceeded (Software 30.0)!

Service

Callback Service

If you are unable to reach us in person, please send us an email at info@tekadoor.de. We will then contact you as soon as possible.

Is there a repair service?

TEKADOOR offers a comprehensive range of services related to the commissioning, maintenance, and repair of air curtain systems.
Learn more here to learn more about our complete range of services, including contact information.
Please note: This offer applies only to services within Germany.

Is there a showroom where people can see the devices in person?

Due to the wide variety of our models, we have decided not to set up a showroom. If you are interested, we would be happy to recommend a reference project in your area.

Where can I download technical documentation, such as installation and operating instructions, circuit diagrams, or functional descriptions?

Here, you can download the technical documentation for the respective product.

Do you have specifications for your products?

Below is a selection of specifications for our equipment series.

Is on-site consultation also available for specific construction projects?

Yes, we would be happy to advise you in person at your location: Under “Field Sales, ” you’ll find the field sales representatives assigned to your area. Alternatively, our sales manager would be happy to advise you as well.