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LPKF SolarQuipment GmbH

Mittelbergstr. 17, 98527 Suhl
Telephone +49 3681 8924-0
Fax +49 3681 8924-44

Hall map

glasstec 2018 hall map (Hall 12): stand A64

Fairground map

glasstec 2018 fairground map: Hall 12


Dr.-Ing. Marc Hüske

Senior Vice President Strategic Product Management & Technology Development

Mittelbergstraße 17
98527 Suhl, Germany


René Beinke

Strategic Product Management & Technology Development

Mittelbergstraße 17
98527 Suhl, Germany


Our range of products

Product categories

  • 02  Glass processing and finishing
  • 02.03  Edge and surface finishing technology
  • 02.03.07  Printing technology
  •  Digital printing technology
  • 02  Glass processing and finishing
  • 02.05  Laser technology
  • 02.05.02  Laser marking technology

Laser marking technology

  • 02  Glass processing and finishing
  • 02.05  Laser technology
  • 02.05.04  Laser removing technology

Laser removing technology

Our products

Product category: Digital printing technology

Digital Laser Transfer Printing for Ceramic Colours

Digital Laser Transfer Printing of Ceramic Colours
An Innovative Digital Printing Technology

LPKF Laser Transfer Printing (LTP) is a laser-based method capable of printing ceramic pigments of the original screen printing size. Compared to the original screen printing paste, only the medium is modified to create an LTP compatible ink. The inorganic part of the ink is not touched. Hence, the resulting enamel on the glass substrate after firing is not different from the one applied by means of screen printing. Furthermore, ceramic colours can be transferred to flat glass with previously unknown precision. This enables introducing digital printing to applications, e.g. printing on automotive glass, where other ditigal methods still have their limitations.

The LTP Process
In the LTP process, an endless web is used as a carrier for the ink. The laser beam transfers a defined amount of the ink to a flat substrate. The ink carrier web is transparent for the laser wavelength used. The laser beam is focussed onto the ink and evaporates some portion of the ink solvent. As a consequence a vapour bubble expands and pushes an ink droplet towards the substrate. The ink droplet is released and deposited on the substrate.
The laser focus is scanned in form of a line across the carrier web. The continuous motion between the printing line and the substrate creates a two dimensional print - line by line. Switching the laser on and off during the scan then creates an image.
The laser energy applied determines the amount of ink being transferred and enables to control the ink layer thickness on the substrate.

From Screen Printing to LTP
Historically car glass is being bonded to auto body since the 80s. The purpose of printing black colour around the edges is the protection of the glue against the UV radiation. Furthermore, the edge printing is simply supposed to look nice to the outside. Nowadays lorry, bus and train glass is also bonded and printed upon.
Up to today screen printing has been the established method to apply the colour to the glass substrate. Screen printing provides high printing speed independent of the glass size. Hence, it is unbeatable in terms of cycle time on large areas.
However, there are limitations to screen printing. Image resolution is also limited and the layer thickness is fixed with the screen thickness. One screen per window model is required, thus glass-to-glass data variation is impossible. Screen handling from procurement to storage is extensive and costly, in particular with regard to rigging, dismounting, cleaning and storage. This results in high fixed costs making screen printing uneconomical for small runs.
As a result LTP is ideal for producing smaller runs which applies to aftermarket replacement and transportation glass (trains, ships lorries and busses). In addition, where only small areas need to printed, e.g. for logo printing, LTP is a digital method. Above all, as the enamel in screen and LTP printing is the same LTP does not have to be requalified. Serveral inks have already successfully passed the relevant automotive tests.

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Product category: Laser marking technology


Precise Deep Micro-Features in Thin Glass -- Unlock the full potential of glass for your application
Vitrion's process technologies enable prototyping and high volume production service for a wide range of thin glass applications at unprecedented top quality.

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Product category: Laser removing technology

LPKF Allegro and Callisto

Next Generation Technology that generates greater Profits
Laser Scribing or patterning of thin-film layers on glass for is used for many applications today. The LPKF Allegro series represents the most advanced technology for scribing thin-film solar modules today. Unmatched in terms of accuracy and throughput the Allego systems contribute to siginificantly increase the thin-film module's output power, at the same time lowering production costs.  
The LPKF Callisto originally designed for our innovative Laser Transfer Printing process can also be equipped with a scanner-based structuring head to create arbitrary patterns in thin-film layers  on glass for many different applications.

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About us

Company details

LPKF SolarQuipment

LPKF SolarQuipment GmbH located in Suhl (Germany) employs a staff of around 100 people. It is part of the LPKF group. LPKF SolarQuipment develops, builds and supplies highly sophisticated laser systems to the photovoltaic and automotive markets. The company combines specialized skills in laser, control and drive technology with extensive knowledge in micromachining a wide variety of materials. 24/7 in an industrial environment is no challenge for LPKF’s proven laser technology. Trained service personnel is on hand worldwide to perform commissioning service tasks, and an application center is available to help with feasibility studies and machining design.

LPKF SolarQuipment has set new standards with its “Allegro” laser scribers for thin-film solar module manufacturing and has become market leader. In terms of throughput, accuracy and robustness they are unmatched allowing cost effective and efficient module production.

Lately LPKF SolarQuipment has introduced Laser Transfer Printing (LTP) for automotive applications. LTP combines the accuracy and flexibility of a laser-based digital printing process with the ability to print certified black and silver inks well known from screen printing on automotive glass.

This offers new possibilities like digitally printing logos for serialization with datamatrix or QR codes. In the aftermarket or small batch production, e.g. for transportation glass, LTP is making screens in production obsolete.


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