Intelligent Search for Components

Search according to your product code, category of product or manufacturer and you will find your requested component fast and easy. Should you nevertheless not be able to trace the part you are looking for – our experts will gladly help you just call: 0800 931 3131.

The leader in repairs and sales of mobile automation equipment

For now over 30 years WISAG has gained an unique knowledge and experience in repair and distribution of PLC components, HMI operation units and drives and driving automation modules. It doesn’t matter whether you wish to have an individual quote on the cost of specific repair or want to purchase a used or brand-new part. Our staff of over 180 skilled employees will see that your request is dealt with as soon as possible. Highest possible reliability and quality guaranteed

HMI Operating Units

Repairs, restoration and distribution of HMI operating units of all known manufacturers including SIMATIC® Touchpanels, programming devices, industrial computing systems and many others.

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Drive Technology

Service on repair and sale of drives and driving automation components such as frequency converters made by Siemens, Lenze, Danfoss, SEW and other manufacturers.

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PLC Controlling Units and Boards

WISAG will always be your reliable partner. Regardless of the module being either  part of the SIMATIC® S5 or S7 family.

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Our core capabilities and competences


Over the past 30 years we have proven to be the leading specialist in the field of maintenance of mobile automation equipment. Our experts at the Service Center in Pürgen perform more than  than 18.000 repairs per year.

Distribution of refurbished components

We currently carry stock of more than 30.000 fully refurbished components including a large variety of modules which have been discontinued by the initial manufacturer.

Purchase of disposable stock

We will help you to reduce no longer needed amounts of stock of parts and modules. Save yourself the costs of expensive and troublesome disposal.

Facility Assessment

Together we can check your current built-in automation equipment of your production facilities. We will then be able to provide you with an assessment to help you develop strategies to ensure a reliability performance for the years to come.

Stock and Life-Cycle-Management

We are able to stock your system-relevant parts of mobile automation equipment in order to ensure that you are always able to get hold of a fully tested and functioning module/component.

Latest Feature: Technical On-Site Service

We are able to provide skilled and experienced technicians on-site throughout Germany in order to support you with a broad scale on repair and maintenance services.

Repair and Distribution of HMI Panels and Operating Units

HMI Touch-Panel

A large number of different manufacturers provide all kinds of touch panels of for all sorts of applications. They are designed for both either simple or complex jobs in order to depict or control tasks your automation equipment has to produce. All panels are tested in fully automated surroundings under full capacity trials. If requested we will provide you with complete report of the testing trial.


Mobile Panels are often subject to extreme conditions. All specific wear parts are stocked at EICHLER – especially the often damaged connecting cables. All mobile panels are tested together with the matching controller.


EICHLER repairs Operator Panels with built in key-boards at highest possible level. All control elements and interfaces are tested automatically and fitted with a complete report of the testing trial upon request.

Industrial Computing Systems

Industrial computing systems are usually fitted out with a rather short life cycle. EICHLER has specialized on providing comprehensive distribution and repair service for all common types in this field.

Programming Devices

The repair of programming devices is one of EICHLER’s main focuses. Apart from repairing such modules we are also able to upgrade and modify these systems.

Power Units and Power Supplies

EICHLER is able to repair and maintain nearly every kind of power unit and power supply. Of course we exchange all relevant wear parts. Together with the strategic preventative maintenance this will ensure a longer life-time of the module in question. 

PLC Boards and Control Units

CPU and Central Control Boards

Central control units  (CCU) are the centerpiece of automated systems. CCUs are highly complex. Well-grounded competence and experience are of utmost importance to restore these units. WISAG owns and operates multiple vapour phase soldering devices and soldering robots, enabling us to repair and exchange even ball grid arrays.

Analogue and digital I/O Units

Analogue and digital I/O boards can either be repaired or exchanged by WISAG instantly. Every board is tested before being sent back to our clients.

Function Modules

Function modules record data of positioning, scale and distance measurements. These units usually have non-standardised designs, thus requiring tailor-made and rigorous test routines to check for proper operation after each repair.

Communication Units

These kind of PLC components ensure the intra-plant exchange of data. Careful testing of all interfaces is essential.

Digital I/O Units

All digital I/O boards are repaired or exchanged at EICHLER with the best routine and as fast as possible. Every board is fully tested before it leaves our works.

Power Units and Power Supplies

Power units are subject to permanent working load. Wear parts will be replaced where required. All units are tested under operating conditions and at full capacity before being sent back to our clients. A complete test report will be provided upon request.

Driving and driving automation components

Frequency converters

Frequency converters are made to actuate and control motors. They are regularly under heavy load due to high currents passing through  and constant changes of working loads. We exchange all relevant parts including semiconductors and capacitors and offer preventive maintenance strategies.

Rectifiers and regenerative Units

Rectifiers and regenerative Units are tested under operating conditions and at full capacity before being sent back to our clients.


Repairing modulators is day-to-day business at our service center. Modulators can be repaired or exchanged within very short notice.


Inverters are essential in the actuation of motors. They are regularly under heavy load due to high currents passing through and constant changes of working loads. We exchange all relevant parts including semiconductors and capacitors and offer preventive maintenance strategies.

PLC Devices

PLC devices control manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis. In nearly every automated unit the PLC devices are the centerpiece of the specific installation. Well-grounded competence and experience are of utmost importance to restore these units.

Motors and Accessories

Together with highly qualified partners we ensure the best service possible. Best care will be taken of your motors, certified by our complete test reports.

We service the repair for a very large scale on different manufacturers of mobile automation equipment

WISAG has gained unique knowledge and experience in repair and distribution of PLC components, HMI operation units and drives and driving automation modules. We repair and distribute mobile automation equipment such as HMI operating systems, PLC Modules and controlling units together with components on driving automation and motors of nearly any manufacturer.

  • Repairs and spare parts for current or discontinued components
  • On-board repairs  according to the actual damage
  • Tailor-made testing equipment precisely identifies even the most uncommon failures
  • Testing procedures simulate operating conditions, guaranteeing operational readiness
  • 24 months warranty for the repair serviced

See for yourself what we can do for you. Simply download and complete the delivery note.

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Give us a call!

Need a repair? Machine breakdown? Buying interest? Just call our free service-hotline 0800 931 3131

All services are provided and for account of Eichler GmbH, Unteres Feld 1-3, 86932 Pürgen, Germany, phone: +49 8196 9000-0, fax: +49 8196 9000-299,
E-Mail: info@eichler-service.de, Registry court: Augsburg, Registry number; HRB 3266, a subsidiary of WISAG Industrie Service Holding GmbH,
Herriotstraße 3, 60528 Frankfurt, Germany

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