Prüfrex – Intelligence in drives

85 Years of
Market success


in drives

PRUFREX is an expert in control intelligence for Small Engines, e-motors, burners and other electronically controlled applications. In 1988 we were the first company to achieve digital control of the ignition spark. Since then we have been driven by the question of how to improve our customers’ products through the control and regulation of sensor and actuator-driven signal processes. As the “brain” of the engine or device we are able to realise powerful ideas and electronics solutions for your application – enabling greater performance capability, lower emissions and greater user comfort.

Vision / Mission

Vision – Where do we want to go?

We are the number 1 worldwide for control intelligence in combustion and electrical engines. Our innovations help protect the environment and contribute to better living comfort worldwide.

Mission – How will we achieve our goals?

We are a driving force in the industry, supporting international industry leaders with our development and manufacturing expertise to help our partners and customers make the best products available in this highly competitive market.

Prufrex Facts

Prufrex Facts


Permanent employees


Locations in Germany and the USA


Individual development projects yearly


Exclusive product developments to date


Years of success on the market


Customers worldwide


Years of experience as a manufacturer of digital controls


Highly specialised production centres


Internationally recognised patents and many other registered designs and trademark rights


PRUFREX was awarded „Supplier of the Year“. We trust that this award will serve as an incentive for PRUFREX to continue its maximum performance, and we look forward to future outstanding efforts by PRUFREX.
PRUFREX Reference
PRUFREX developed the starting system for us. We thank PRUFREX for their support in this magnificent market success.
PRUFREX Reference


Quality Management and Environmental Management System

We demand, of ourselves and our products, the constant delivery of exceptional quality, self improvement and customer satisfaction. That is why we are so conscious of our responsibility to people and the environment. You can be sure that we are always ensuring the highest quality in working processes (ISO 9001), that we take care to take measures to save energy and preserve the environment, and that we will always maintain the highest standards of occupational health and safety (ISO 14001).

ISO 9001 Quality Management


ISO 14001 Environmental Management System




The Foundation of the Company


The Foundation of the Company

The company is founded in Nuremberg and registers its first Patent (Device A1). It produces Stator and armature testers, motor testers and battery ignition coils.

PRÜFREX Cadolzburg


Move to today’s headquarters

PRUFREX moves house to the Egersdorf municipality, today's Cadolzburg, near Nuremberg. The company delivers to approx. 60 countries worldwide, the export ratio is approximately 70% of the total production.



An additional location

A further PRUFREX site is opened in Velburg/Oberpfalz In the new location, the first fully automated potting plant is installed and SMD technology is introduced.

PRÜFREX – Stepping into the era of digital control units


A start in the age of digital control

PRUFREX develops its first digital ignition system with ASIC design. In 1995, the development of the first embedded micro-controller follows.

PRÜFREX – Milestone in full automation


A milestone in full automation

The first fully automated production line comes into operation in the Velburg site. Subsequently, the development of the Velburg plant continues.




With the foundation of PRUFREX USA, PRUFREX begins its activities in the United States. On the 10th of October 2014 the new PRUFREX facility is opened in Virginia Beach (VA).

PRÜFREX – 10 million IPI® ignition modules


10 million IPI® ignition modules manufactured automatically

Impressive confirmation of the value of the PRUFREX automation strategy: The 10,000,000th IPI® ignition module comes off the PX1 production line in Velburg.


Purchasing strategy

With product life and development cycles getting shorter, planning for our next generation of products is becoming increasingly complicated. We have recognised that we have to work today with the leading product developers in all sectors.

That way we can ensure that our products are where they are needed at the right time. That is why we want to combine the power of our suppliers with our own strengths. That's why we, as an international technology leader, are looking for the best supplier companies throughout the world.

Prufrex USA, Inc. Terms and conditions of Sale


Prufrex USA, Inc. Terms and conditions of Purchase


PRUFREX IPP GmbH Terms and conditions of Purchase


PRUFREX IPP GmbH Terms and conditions of Sale


News & Events

PRÜFREX wins Mittelfränkischer Website Award 2018

The World Wide Web is undergoing rapid changes. This dynamic is especially challenging for small and medium-sized companies. Designs that appear innovative and modern can quickly become outdated and obsolete.

In order to honour the outstanding achievements of medium-sized Central Franconian companies on the Internet and to bring together companies...

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PRÜFREX gewinnt Mittelfränkischen Website Award 2018

Das World Wide Web ist rasanten Änderungen unterworfen. Diese Dynamik stellt vor allem kleine und mittelständische Unternehmen vor eine Herausforderung. Designs die Innovativ und Modern erscheinen, können bereits nach kurzer Zeit überholt und veraltet sein.

Um besondere Leistungen von mittelständischen Unternehmen aus Mittelfranken im Internet zu...

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85 years Driven by Intelligence

PRÜFREX is THE expert when it comes to control and feedback control systems for small engines, e-motors, combustion engines and diverse electronically controlled applications. With its innovative electronic solution concepts, PRÜFREX stands for more performance with fewer emissions and greater comfort. When it comes to development and manufacturing...

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PRUFREX, Zama and Selettra form strategic alliance

ZAMA Group, PRUFREX Innovative Power Products GmbH. and Selettra SRL announced today they have entered into an international strategic alliance for Carburetor, Ignition and flywheel matched product sets.

Under the terms of the agreement, Zama, PRUFREX and Selettra will jointly cooperate to provide best of breed product sets which include...

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PRUFREX facility opens in the USA

After the establishment of the daughter company PRUFREX USA Inc. in 2011, PRUFREX has carried to plan its strategy for further development in the core USA market. The opening of the new PRUFREX facility in Virginia Beach took place at a festive ceremony on 10th October 2014.

This great day was celebrated together with our US management team,...

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Smart EMI avoidance

The modern car is unthinkable without efficient interference suppression solutions by PRUFREX. In reaction to the trend towards ever more complex on-board electronics, the topic of electromagnetic compatibility (EMC) and PX ROBUST DESIGNS, are coming into new focus. In the future, how can electromagnetic interference, especially in safety critical...

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New fully automated production line for ignition modules

PRUFREX is extending its capacities in the field of automated production, with a second production line for ignition modules. The new plant, produced by the Turin special machine workshop Marsilli, was gradually started up at the end of 2013 at the Velburg site.

In the design of the new line, all the experiences that PRUFREX has collected over...

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