Prüfrex – Intelligence in drives



Electronic control units
and digital ignition systems

The exceptional quality of PRUFREX products is the result of the decades-long synchronisation of development and production under a single roof. PX COMPONENTS links together our deep knowledge in many sectors, our familiarity with interactions and our experience with highly integrative solutions. As a preferred component and system partner of engine and burner manufacturers, we not only deliver to partners in the industrial and the automotive sectors, but also forge particularly strong supplier links with sectors such as forest and landscape gardening, motorised water-sport and leisure vehicles, along with the construction industry.


MMS-AL – motor management system

High Performance,
Small Footprint

Micro-electronic control of ignition timing, fuel injection and enginge management - all in a single housing.

MMS-EL – motor management system

One System, many options

Microelectronic control of the moment of ignition and fuel injection, with automatic adjustment to environmental conditions. Optional control of peripheral components.

IPI®-N – electronic fuel injection

Cost Effective
modular concept

Electronically controlled ignition timing and fuel injection especially for non-battery hand-held devices – a flexible solution for different models of engine through its modular design.

IPI®-S – ignition and engine management

Ignition coil with integrated fuel mixture control

Integration of ignition and mixture control in a single housing – in an extremely compact package.

IPI®-B – ignition with booster effect

Ignition Optimisation

Increased spark energy and extension of the spark duration by micro-controller – ignition of the fuel-air mixture even under the harshest of conditions.

CDIM – ignition module with digital easy-start system (DLS)

Ignition timing

Ignition timing management for 2 and 4-stroke internal combustion engines by micro-controller – numerous performance, safety and convenience-improving functions, can be implemented.

EZW – ignition transformer for alternating voltage

More ignition energy,
fewer resources

High frequency ignition spark generator for oil, diesel and gas burners – material and volume saving, as well as electromagnetic interference reduction by direct connection to the combustion electrode without high-voltage lines.

EZB – ignition spark generator for battery operation

Reliable ignition

Battery operated electronic spark generator for reliable ignition

ESW – electronic control unit for AC voltage

More power for more functions

There is a greater freedom in the implementation of special functions in the sequence of electric motor control, thanks to the integrated microcontroller and motor current detection.



Ready for the
internet of things

Do you want to offer your customers smart functionality and networking potential? We implement ideas and innovations directly at the key areas of engine, motor and equipment operation.

Ready for the
internet of things

Our electronic control units provide the ideal interface for the realisation of smart concepts. PX CONNECT offers system modules for optimising work processes on-site via app, tablet or conveniently via PC at the workplace that can be combined in various ways and are tailored to your requirements – so that you and your customers can benefit from a wide range of added values in terms of information, security, organisation and data management.


Wireless fleet management, cloud-based data management of the entire equipment and machine park – we implement your requirements independently of system type and custom tailored to your situation.

Localise, control, measure

Equipment tracking, remote access, recording of machine runtimes, current parameters such as pressure, temperature, etc., and status information such as state of charge, state of health and number of loading cycles by means of real-time diagnosis – all at a glance.

Fleet management

Equipment and machine park monitoring, reminder messages for servicing intervals or repairs, sharing functions for easy equipment hire and intelligent equipment inventory management for coordinating the use of equipment - saves you time and money.


End-to-end encryption, geofencing, alarm functions, (password-)protected blocking of use and much more - so that your data remains yours.


Heavy Duty for
your Business

Temperature and moisture protection

Temperature and moisture protection

Vibration and shock resistant

Vibration and shock resistant

Compact design

Compact design

High-voltage resistant

High-voltage resistant

EMC shielding

EMC shielding

All-in-one solutions

All-in-one solutions

Heavy duty for
your business

PX ROBUST DESIGN – one of our great strengths, which we continually develop using various methods of qualification. You save space and protect your product more effectively against environmental influences and improve its electromagnetic compatibility.

Temperature and moisture protection

PRUFREX provides the know-how and the technical equipment required for connecting housing, electronic system and cables, creating temperature resistant and waterproof components – for optimum device protection in harsh environments.

High-voltage resistant

As a specialist from the ignition sector, PRUFREX is the natural partner in the field of customer-specific high-voltage solutions – for reliable, well shielded energy transfer.

Vibration and shock resistant

With its well-developed potting and testing technology, PRUFREX ensures the continued functionality of its parts or systems under vibration and mechanical loads.

EMC shielding

Ever more complex on-board electronics are demanding effective EMC shielding. As the "Controller of the Ignition Spark", which is the number one source of electromagnetic interference, PRUFREX is the global leader in efficient EMC processes. With this expertise, we are also top choice when it comes to many other similar applications.

Compact design

We come from the Small Engine sector – space-saving products, optimised engineering and product solutions are part of our company’s DNA. Our mission is to manufacture and supply  the most powerful product in the most compact format.

All-in-one solutions

PRUFREX is a pioneer in the integration of diverse system components in a single housing. If it's the combination of various technologies in a small space with no interference you`re after, we are your partner of choice.

Qualification methods

Our competence in PX ROBUST DESIGN has been developed continuously over many decades.
We employ the following testing and analysis instruments, including:

FMEAs, environment tests, material analysis, photomicrography, X-ray analysis, shock-resistance measurements in air and liquids, thermal gradient tests, motor and simulator endurance runs, reliability tests of solder and glue joints, reliability tests of electronic components, reagent resistance and shaker tests.


Full responsibility –
PRUFREX, your system partner

Are you looking for quality partnerships that will support and sustain you at various levels of development and production? PX SYSTEMS offer you all-round engineering, production and logistics competence, making us the ideal system supplier for your projects. We are happy to take full responsibility for demanding, complex device components.

You can be sure of technically mature and on time/in budget completion of projects. We find the most cost-effective answers to your requirements – in the most compact form.


Even if not related to the ignition process, we can develop and produce any of your engine power tools, burners, or application specific control units.

Sensors / actuators

Wherever there are systems which have to receive digital and analogue information and signals relating to operational status, and induce a desired target status, we are your expert partner.

Wet Side

If fuel metering and fuel pressure with maximum precision are required, we are the system specialist with decades of experience.

Power supply

Whether your system is to be battery, magnet or generator fuelled – our systems guarantee optimal provision and distribution.

„We optimise our modular solutions to your product. For further details please contact us!“

Dipl.-Ing. Martin Zappe, Director Sales Division