For over 50 years, Krapf & Lex has been developing and manufacturing high-performance filter systems, ventilation grilles, and pressure protection solutions for fresh air and exhaust air systems in rail vehicles.

Drawing on many years of experience, we develop efficient solutions that reliably prevent the ingress of dust, water, and snow. Our systems are used in air conditioning and ventilation systems, as well as in cooling air systems for technical components of locomotives and passenger cars—custom-designed and optimally tailored to our customers’ requirements.

A particular highlight of the product portfolio is the multicyclones, which have been in use since 2009 and prove especially effective under extreme conditions—such as in

Desert regions – have proven effective. They significantly reduce high dust levels in the intake air, extend the service life of fine filters, and effectively protect the entire vehicle interior and HVAC systems from contamination.

From the initial consultation to the delivery of 3D data and prototypes, our technicians guide you through the entire process. This ensures that components are integrated into the vehicle quickly and efficiently.

Krapf & Lex also develops reliable, low-maintenance pressure control systems for high-speed trains that safely equalize pressure differences inside the train and ensure the highest level of comfort.