Cooperation with Hahn-Schickard in Ulm and the University of Ulm
Alexander Peschl, Managing Director of Peschl Ultraviolet GmbH, and Prof. Dr. Dirk Ziegenbalg, Head of the Photochemical Reaction Engineering Group…
Are you looking to integrate photochemistry into your R&D laboratory or industrial production line? Many companies face the challenge of finding technology that not only works reliably at the lab scale but also scales safely to industrial operations.
At Peschl Ultraviolet, we offer more than hardware — we provide engineered solutions and expert consulting services. Our scientifically grounded consulting combined with automated process development systems enables fast and successful upscaling of photochemical processes. With over 38 years of experience, “Made in Germany,” we are a trusted partner for the chemical and pharmaceutical industries worldwide. Whether you need a flexible UV photoreactor for screening or a fully ATEX-certified industrial system, we guide you through every stage of photochemical process development, ensuring reproducible results, economic feasibility, and seamless scale-up.


At Peschl Ultraviolet, we combine traditional engineering expertise with the latest technological innovations to meet the high demands of chemical and pharmaceutical production.
Our technology highlights include:
Advantages of Peschl Photoreactors
Scaling photochemical reactions from lab benches to production plants is a complex challenge. Peschl Ultraviolet specializes in bridging this gap. We ensure that your laboratory results are reproducible and that your industrial processes are both efficient and safe.
| Stage | Our Solution | Key Features |
|---|---|---|
| Wavelength Screening | PX9 Parallel Screening Photoreactor | Entry-level system to test feasibility, ideal for initial wavelength screening |
| Laboratory & Feasibility | MPDS (Modular Photochemical Development System) | Rapid feasibility studies, parameter optimization |
| Process Development | MPDS EVO & PRO | Process development and data collection for scale-up |
| Pilot Phase | Pilot photoreactors | Reliable scale-up testing, produces small quantities of end product, validates and optimizes production parameters |
| Industrial Production | Industrial photoreactors | Agitated systems, falling-film reactors, turnkey installation |
Screening photoreactors enable rapid, data-driven reaction optimization. Conduct parallel experiments to identify the best irradiation conditions, wavelengths, and intensities, saving time and valuable materials . Precise temperature control and reproducible light output ensure reliable results for feasibility studies, catalyst screening, and early process development. Their flexible, small-volume formats make them ideal for R&D labs working with limited or high-value substrates. From photoredox to photocatalysis, screening photoreactors support fast, informed decisions on the path to series production.
From first feasibility tests to precise parameter optimization: The MPDS is your flexible lab-scale photoreactor for batch and flow photochemistry. Its fully modular design allows quick adaptation of light sources, reactors, and process parameters – enabling realistic reaction evaluation before scale-up. Ideal for chemical and pharmaceutical R&D where speed, precision, and scalability matter.

Our Pilot Photoreactors are specifically engineered to bridge the gap between laboratory experiments and full-scale production. They provide a controlled environment to validate reaction parameters on a larger scale, ensuring that lab-scale results can be reproduced efficiently in industrial settings. With flexible reactor designs and configurable light sources, pilot systems can mimic both batch and flow processes, supporting optimization of productivity, energy use, and safety.
Industrial-Scale Photoreactors from Peschl Ultraviolet are heavy-duty, ATEX-certified systems designed for large-scale chemical and pharmaceutical production. Available in agitated or falling-film configurations, they are engineered to handle high volumes while ensuring uniform light distribution and reaction efficiency. Each system can be fully customized to match specific process requirements, including batch or flow operations, cGMP compliance, and integration with existing production lines.
Beyond our standard photoreactors, we develop application-specific, highly optimized systems tailored to your process needs. Leveraging decades of experience and patented technologies, our custom solutions enhance productivity and profitability. We also support technology transfer, from gas discharge lamps to innovative LED systems, and can convert batch processes to flow setups where technically and economically advantageous.
On our product overview page you will find a wide range of state-of-the-art photoreactors that have been specially developed for different applications and processes. See the different types of photoreactors and get in informed.
Discover the latest in photochemical technology with our new Flow Photoreactor, designed to meet the growing demand for continuous-flow processes in the pharmaceutical and chemical industries. This cutting-edge system enables highly efficient, reproducible reactions, making it ideal for scale-up and rapid process development.
Stay ahead with innovative flow solutions and explore our Flat-Photoreactors for flexible, high-performance photochemistry.
Our Photochemistry Competence Center (PCC) Test Laboratory offers companies the unique opportunity to evaluate photoreactors and test specific processes before committing to a purchase.
Experience the benefits of hands-on testing and process validation in a professional, fully equipped laboratory environment.
Often, the ideal photochemical solution is not immediately obvious. Our engineering team collaborates closely with R&D departments and technical directors to define the best approach for each chemical process.
Our consulting and engineering services include:
Key Differentiators:

Choosing the right partner for photochemical solutions is critical. At Peschl Ultraviolet, we go beyond providing equipment — we deliver complete process solutions that support your business from concept to industrial production.
With customized solutions, patented technology, and consultative expertise, Peschl Ultraviolet is your strategic partner in photochemistry, ensuring reliable, scalable, and cost-effective results for every process.
Alexander Peschl, Managing Director of Peschl Ultraviolet GmbH, and Prof. Dr. Dirk Ziegenbalg, Head of the Photochemical Reaction Engineering Group…
The smallest photoreactor from Peschl Ultraviolet can perform nine irradiation experiments in parallel with very small sample quantities – LEDs…
For decades, special medium-pressure gas-discharge light sources have been the standard technology used in photoreactors to carry out photochemical reactions.…

Meet Hannes Gemoets as a speaker at the CFRT,
the conference of the flow community.
Feel free to make an appointment.
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More InformationThe research and development project:
„Development of new LED-Light Sources for use in Plants for efficient Iddriation Systems to reduce the CO2 footprint”
is funded by the European Union from the European Regional Development Fund.
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