Duo-Technik GmbH

Im Tiegel 4, 36367 Wartenberg
Telephone +49 6641 9695-0
Fax +49 6641 9695-40


Hall map

drupa 2016 hall map (Hall 3): stand F07

Fairground map

drupa 2016 fairground map: Hall 3

Our range of products

Product categories

  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.075  Dust removing equipment for printing presses

Dust removing equipment for printing presses

  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.095  Colour measurement and control systems

Colour measurement and control systems

  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.250  Dryers
  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.265  IR/dry air dryers, IR/hot air dryers

IR/dry air dryers, IR/hot air dryers

  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.270  IR dryers, infrared dryers

IR dryers, infrared dryers

  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.290  UV dryers
  • 06  equipment/services/infrastructure
  • 06.01  Peripheral equipment
  • 06.01.300  Viscosity control devices

Viscosity control devices

Our products

Product category: Dust removing equipment for printing presses

Sheet & Web Cleaning

// Remove the dust wherever it is

• Dust removal directly before printing

Especially for printing machines with a high volume of quality printing additionally a cleaning

before the first printing units is reasonable. Dust sticks on the surface very strong with a static charge;

even 1 left dust spot reduces the quality of the printing and can lead to a stop of the machine.

• Dust removal in the corrugator

With the cleaning in the corrugator plastic, metal and dust particles as well as paper strips and

angle hairs will be removed early in the process. The total amount of pollution in the plant is

reduced. This has a positive effect on all printing machines in the plant and is an essential part of your

health & safety objectives.

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Product category: Colour measurement and control systems

Ink Cooling, Viskosity Control & Adaption

// The right step for a stable printing process

(1) Viscosity measuring

With the right viscosity the converting of the inks are improved. Printing of inks with a higher viscosity

leads to a higher ink consumption. Means ink is wasted (up to 15% p.a.) and the colour density is influenced.

We suggest:

for inks: 22-23 sec. Ford cup 4 | for water based varnishes: 20-21 sec. Ford cup 4

(2) PH

The adhesion of the ink onto the sheet will be improved with the correct pH-value. In addition the drying

results will be improved, too. Basically, the pH-value should decline from printing unit 1 to the last prin-

ting unit. The pH-value of the first printing unit should be 9-9,5 and should be dropped by 0,2 per each

further printing unit. However, it should never be lower than 8.

(3) Temperature

The ink temperature is influenced by the ambient temperature and the friction of the ink in the printing

machine. With a fix temperature the change of viscosity and pH can be controlled and kept on a stable

value. The temperature should be set between 20 and 22 °C.

(4) Automatic viscosity adjustment (pH control)

Automatic adding of amines (or water) in small portions.

The adding of amines automatically controls your pH.

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Product category: Dryers

Hot-Air or Infrared Drying

// Hot-Air Drying or Infrared Drying?

Duo-Technik offers both systems, singularly or combined. Let us recommend a system for your individual printing machine.

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Product category: IR/dry air dryers, IR/hot air dryers

Hot-Air or Infrared Drying

// Hot-Air Drying or Infrared Drying?

Duo-Technik offers both systems, singularly or combined. Let us recommend a system for your individual printing machine.

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Product category: IR dryers, infrared dryers

Infrared Dryer

When considering an Infrared dryer the most important element that you need to know is what type of Infrared emitter system is being used?

// It is Duo-Technik’s firm conviction that incorporating IR medium wave emitters is the right engineering decision. Why?

Medium wave emitters will evaporate water more quickly since water naturally absorbs IR energy most efficiently in this range.

(1) Because of the very low core temperature of the medium wave emitter and an efficient air flow design, the maximum temperature above the dryer is 250° F, well below the flashpoint of paper

(2) With a positively pressurised area above the IR lamps, the potential of dust or paper particles falling on the IR lamps is eliminated.

As a result …

(3) A power robbing quartz glass above the IR lamps is not necessary, so the full power of the IR lamps is available, delivering the best results using less power.

(4) This design allows the dryer to be used for less complicated jobs when an ambient air temperature will suffice, another energy-saving feature.…The dryer can be used for more simple jobs as an ambient air dryer which saves a lot of energy and resources.

Even though our IR hybrid drying system is designed to be extremely safe, to eliminate any possibility of a potential safety concern, we also incorporate a laser curtain to shut down the IR lamps immediately if and when a board or part of a board comes in close contact with the IR lamps.

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Product category: UV dryers

UV Polymerisation

// UV Varnish increases your product quality

Duo-Technik is a specialist for UV dryers in bigger working widths starting from 1600 mm. On this field we are working together with the market leader IST-Metz and adapt their systems specially for these widths.

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Product category: Viscosity control devices

Viscosity Measureing

// Measuring the viscosity is an indicator of what is happening in your ink. Viscosity

tells you when you have to add a substitution


The viscosity is measured by a special Inline Sensor from the market leader. The Inline installation pro-

vides real time, dynamic viscosity measurements and adapts easily to manual or automatic wash-up

systems. This crucial inline positioning enables the viscometer, to adapt to the varying press conditions

intuitively, allowing the operator to relate his ink viscosity control to the actual printing results.

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About us

Company details

Since the operating launch of Duo-Technik in 1989 the company has changed from a sales organization

to an engineering organization which is able to provide the full range of auxiliary equipment for the

printing industry.

Duo-Technik benefits from steadily increasing requirements. Today the product range comprises

• dust removal for sheets & web machines

• infrared and hot-air dryer for water based inks and varnishes

• washing systems for printing plates & anilox

• curing systems for UV inks and varnishes

• conditioning of inks

• transport of sheets

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Company data

Sales volume

1-9 Mio US $

Export content

> 75%

Number of employees




Area of business

equipment/ services/ infrastructure