Technical articles

We offer a selection of technical articles dealing with the safety of machines and plants - both in general and on particular aspects of product families for machine safety. Some of the contributions are from Schmersal employees, others are written by independent specialists, e.g. from industrial assessment organisations. The applicable PDF file can be stored on your computer by means of the download function.

  • Risk assessment to ISO 12100:2010

    Based on ISO 12100:2010, the tec.nicum specialists carry out risk assessment and a comprehensive assessment of all hazards relating to the machines...

    For more information on the tec.nicum risk assessment please see our website Alternatively, you can email our TÜV Approved Functional Safety Engineer Mark Langfield at who will be happy to answer any questions you may have.

    File attachments:
     Risk_Assessment.pdf (444 KB )

  • Stop Time Measurement

    Schmersal UK offer free Stop Time Measurements (STM) with every light curtain purchased.

    For more information on the tec.nicum Stop Time Measurement (STM) please see our website Alternatively, you can email our TÜV Approved Functional Safety Engineer Mark Langfield at who will be happy to answer any questions you may have.

    File attachments:
     Stop_Time_Measurement_01.pdf (3.80 MB )

  • “Factories in India are getting future-ready”

    Mindset could be one of the challenges posed by manufacturers while leveraging automation

    “With vision in mind and correct planning, one can achieve success in automation projects”, says Sagar Jeevan Bhosale, Managing Director, Schmersal India, in an interview with the magazine A&D India. He believes that factories in India are getting future-ready with their technological innovation and capable human resources.
    Source: A&D India, Apr-May, 2016
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  • Speed control for robots


    Virtual safety fences isolate robots from people. Cooperation between humans and robots without isolating safety fences is one of the hot topics in industrial automation.
    These kinds of cooperative working systems mean that the robots need an “in-built” safety fence, which shifts what were previously hardware functions to an intelligent
    controller.Leading providers rely on customer-specific solutions from the Schmersal Group, which has been carrying out research and development work in this area of machine safety for around fifteen years now.
    Source: Scope, 4/2016

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  • Safety as a business

    Certified tec.nicum employees assess the safety of your machines.

    Schmersal has already been providing a portfolio of services for some time. In recent years, demand for these safety-related services has increased steadily. This is why the company restructured its services as of 1 January 2016, at the same time expanding them and transferring them to a new company division. The new, independent tec.nicum umbrella brand underlines the company’s aim of providing consultancy services on a product and manufacturer-neutral basis.
    Source: A& D magazine, 4/2016, publish industry verlag
    Author: Jörg Schreiber, Head of Strategic Market Development at the Schmersal Group

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  • The aim: safe machines

    Schmersal Group founds service division

    The Schmersal Group is bundling its comprehensive range of machine safety services based on the tec.nicum brand. GIT SICHERHEIT asked Jörg Schreiber, Director Strategic
    Market Development at the Schmersal Group, about the product range of the new division and the positioning of the company as a system and solution provider.
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  • More flexible evaluation of safety-related signals

    With eight variants, the new SRB-E safety relay modules cover a wide range of applications.

    Even technologies which have been established for years have potential for innovation. This is evidenced by Schmersal with its latest range of safety relay modules, which
    bring a new dynamic to this proven technology for evaluating safety signals. The range can easily be adapted to individual requirements. Different applications can be covered
    with a single module.
    Source: trade magazine „etz“, 1-2, 2016, VDE VERLAG GMBH
    Author: Thomas Rühl, product manager, Schmersal Group

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  • Solenoid interlock for heavy safety doors

    With the AZM 400, the Schmersal Group is enhancing its programme of solenoid interlocks

    At the SPS IPC Drives trade fair, the Schmersal Group is presenting a new solenoid interlock designed specifically for heavy safety doors. Among its main properties
    are the electric-motor-powered locking bolt, a holding force of 10 000 N and the bistable principle of operation.

    Author: Dipl.-Ing. (FH) Stephan Frick, MBA, Product Manager of Safety Technology,Schmersal
    Source: trade magazine etz, 11/2015, VDE Verlag

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  • Multifunctional and flexible

    New safety relay modules

    At the SPS IPC Drives trade fair, the Schmersal Group is presenting a range of safety relay modules that are distinguished by optimum adaptation to different applications and offer various unique selling points. During development of the range, the design engineers also had to bear particular demands relating to packaging machine construction in mind.

    Author: Thomas Rühl, Product Manager of Safety Technology, Schmersal

    Source: trade magazine Pack Report 11/2015

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  • Partnership for safety

    Interview: Safety technology for conveying bulk material

    Two industry specialists for processing and plant safety in the heavy industry have embarked on a sales partnership in order that, in future, they can offer their customers complete solutions for safe and productive bulk material conveyance: the Schmersal Group and the Coal Control Gesellschaft für Automation. In a discussion with Udo Sekin, Heavy Industry Manager of the Schmersal Group, he reports about equipment manufacturers turning into solution providers and about the first results from the Coal Control merger.
    Source: trade magazine traffic, WILEY

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  • Ordinance provides clarification

    The new German ordinance on industrial health and safety (BetrSichV)

    The new version of the German ordinance on industrial health and safety (Betriebssicherheitsverordnung - BetrSichV) has been in force since the middle of the year. It contains
    some changes that are of relevance to all organisations that operate machines and systems. And, finally, it clarifies – together with interpretation paper from the German Federal Ministry of Labour and Social Affairs (BMAS) – the question as to which safety requirements must be taken into account on the modernisation and modification of machines.

    Author: Dipl.-Ing. (FH) Siegfried Wolf, Head of tec.nicum academy
    Source: trade magazine Der Betriebsleiter 11-12/2015, VFMZ

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  • Eliminating the risk

    Solenoid interlock for reliable locking and unlocking under difficult conditions

    In areas such as machine tool construction, solenoid interlocks offer protection for man and machine. To further optimise this, the Wuppertal-based company has developed a solenoid interlock whose design combines compact dimensions, a strong holding force, a bistable principle of operation and an electric-motor-powered locking bolt. In this way, the product not only fulfils the desires of the users but also the requirements of new safety standards.
    Author: Dipl.-Ing. (FH) Stephan Frick, MBA,Product Manager Safety Technology, Schmersal
    Source: trade magazine Industrielle Automation 6/2015
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  • Flexibility and safe control technology

    The new safety controller Protect PSC1 from Schmersal

    In the packaging industry, however also in other sectors of machinery manufacture, flexibility is becoming an increasingly important characteristic of machines and systems. Batch sizes are becoming smaller, and it must be possible to adapt the machines to different products and market conditions both straightforwardly and quickly. As a result there are also new requirements on the safe control technology.
    Author: Siegfried Rüttger, industry manager pharma/food/packaging at Schmersal
    Source: trade magazine mpa 11-12/15, b-Quadrat Verlag

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  • Virtual protected spaces and networked systems

    Trends in machine safety: From hardware to software

    In automation technology and in mechanical engineering, functions are increasingly being shifted from hardware to software. This also applies to machinery safety. Aside from software-based safety concepts, however, classical safety devices are still being employed – though these have new mechanical and sensor combinations. As a provider of systems and solutions for machine safety,Schmersal thereby offers everything from one
    source: Hardware and software, expertise and consulting.
    Author: Jörg Schreiber, Director Strategic Market Development
    Source: trade magazine elektro AUTOMATION 10/2015

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  • Door shut for cool processes

    Solenoid interlock in a deep freeze system for blood plasma

    The doors of a plate freezer which, through contact cooling, cool down freshly obtained blood plasma to a core temperature of -30°C in no time are monitored reliably with Solenoid interlocks from Schmersal. In this case, the safety switchgear units serve not so much as a means of personal protection but process safety instead.

    Author: Sylvia Blömker, PR Manager, Schmersal

    Source: trade magazine Der Konstrukteur 10/2015

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  • Machine safety from a global player

    70 years of the Schmersal Group: From component manufacturer to world-wide provider of systems and solutions

    The Schmersal Group, a leading company in the international market of machine safety, can celebrate its 70th birthday this year. Philip Schmersal, managing partner from the third generation of the family, explains the company‘s strategy, the new business activities and the current trends in the market of machine safety.


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  • It started with a waffle iron

    Provider of solutions in the age of Industry 4.0

    The Schmersal Group offers the largest programme of safety components and systems for machine safety in the world, it is one of the international market leaders and pillars of expertise in this area and has production facilities on three continents. The balance of success after 70 years of company history reads as follows. It all started quite modestly…

    Source: packaging-journal, 07/2015

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  • Using inner strength and innovative technologies to drive growth (Kopie 1)

    Interview with Philip Schmersal

    Since the 1980s, the Schmersal group has focussed on the safety of man and machine and is now among the global market leaders when it comes to machine safety. The company is currently developing into a system and solution provider and pressing ahead with internationalisation. Philip Schmersal, managing director and shareholder, the third generation of the Schmersal family, explains strategy and trends in machine safety.

    Source: trade magazine "messtec drives Automation" 8/2015, GIT Verlag

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  • Stoppers for the crane

    Safety for intralogistics

    Based in Ludwigsburg, Weinmüller Formen- und Werkzeugbau, develops and makes moulds for complex components made from pressure cast aluminium, such as transmission casings, oil sumps and engine parts. The precision moulds weigh more than 50 t – and even larger units are being called for. Alongside this is the rising demand for pressure cast tools. The heart of the system is a position switch with safety function from the new PS 116 series that Schmersal presented last year.

    Source: IEE magazine, issue 8-9 / 2015, Hüthig Verlag

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  • High-tech meets high-tech

    Interview with Siegfried Rüttger

    SIEGFRIED RÜTTGER Packaging / Pharmaceuticals / Good Industry Manager at Schmersal, provides insights into the market for packaging machinery and systems, describes current issues and trends and explains what safety technical solutions are best suited to the packaging industry.

    Source: automation, issue 05 / 2015

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  • Rewriting the rules for machine safety

    What will the new Operational Safety Ordinance change?

    The new version of the German Operational Safety Ordinance (BetrSichV) will mean machine operators will need to gear up to changes in the rules on machine and plant safety. These include the obligation to check safety gear regularly and adapt it to the
    state-of-the-art where necessary.

    Author: Dipl.-Ing. (FH) Siegfried Wolf, Head of tec.nicum Training Centre, Schmersal

    Source: trade magazine Der Betriebsleiter 7-8 / 2015 

    File attachments:
     f_betriebssicherheitsverordnung_en_02.pdf (630 KB )

  • To good cooperation between people and robots

    Safety Services - even for virtual safety fences

    Until now, the rule in automated production was that the working areas of people and robots are strictly separated and robots carry out their work behind safety fences. This rule is increasingly being broken, and for a good reason. When people and robots work together, both can contribute their own strengths - people have intelligence, judgement and flexibility, robots have power and untiring performance when lifting and moving loads.

    Source: trade magazine Der Konstrukteur 06/2015

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    Author:  Dr. Andreas Hunscher, Jörg Schreiber

  • »HRC is an exciting subject«

    Interview with Dr. Andreas Hunscher

    DR ANDREAS HUNSCHER is in charge of the Schmersal factory in Wettenberg as well as the global system and solutions business of the Wuppertal-based family company, and particularly appreciates
    the culture, structure, and future-orientation and real dynamism „in an extremely multifaceted and exciting market“.

    Source: automation 3 | 2015, Verlag Henrich Publikationen

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  • Seven tips for choosing safety switchgear

    Brochure on ISO 14119 – Book on Machine Safety

    The securing of danger point and danger zones is one of the "classic" activities of a designer and is also one of the especially demanding tasks, as a comprehensive set of regulations must also be taken into account here. To simplify this task for the designer, the following article provides several tips from the standpoint of a safety switchgear manufacturer.

    Author: Frank Schmidt, Head of Standards, Bodies and Associations, Schmersal

    Source: trade magazine Konstruktion, 4/2015

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  • Safely secured in position

    Compact position switches PS116  

    Schmersal‘s new compact position switches with safety function reliably monitor laterally shiftable or rotatable protective equipment.

    Source: trade magazine Konstruktionspraxis 05/2015


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  • Hygienic, flexible and tamper-proof

    Solenoid interlocks in filling and packaging machines protect employees

    At OPTIMA packaging group GmbH, a family business with headquarters in Schwäbisch Hall, Germany, and soon to have a 100-year history, the 1,800 employees worldwide develop and produce manufacturing, filling and packaging machines for foodstuffs, cosmetics, chemical and pharmaceutical products. The machines from Optima are internationally in demand: The company‘s export share is over 80 percent. The Optima Consumer business division has developed a new machine designed especially for use with foodstuffs and chemicals. Schmersal has provided the safety technology for it, including the new AZM 300 solenoid interlock with emergency release.

    Source: trade Magazine "dei - die ernährungsindustrie", issue 5/2015

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    Author:  Siegfried Rüttger, Industry Manager packaging / pharma / food, Schmersal

  • Hold closed doors and flaps

    Hygiene-relevant safety technology in dairy product packaging

    The bottling, filling and packaging of dairy products is a sophisticated undertaking. The processing of food products such as milk and yoghurt etc places the most demanding requirements on hygiene. At the same time though, flexibility is required to reflect faster product cycle turnarounds and the importance of packaging as a marketing Instrument in the sector. With the Combiseptic 81, Gasti has developed an unusually adaptable cup filling and sealing machine with which innovative product ideas can be realised. Schmersal has contributed here with its safety technology which is just as flexible as it is hygienic.

    Source: trade magazine Lebensmitteltechnik 4/2015

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  • Two new standards

    DIN EN ISO 14119 and the Operational Safety Ordinance

    In April and June 2015 the transition periods for two new German regulations on machine safety end. The standard DIN EN ISO 14119 is directed at the (electrical) designers and describes the
    design of guards and the choice of safety switches and interlocks, while the new Operational Safety Ordinance (BetrSichV) is intended more for the owners. Both emphasise the importance of tampering protection.

    Source: elektro AUTOMATION, issue 04/2015

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    Author:  Frank Schmidt, Head of Standards, Bodies and Associations at Schmersal

  • „Automation solutions have become critical“


    Sagar Jeevan Bhosale, Managing Director, Schmersal India, briefs on the Indian machine safety industry, while highlighting the importance of integrating automation systems to be at par with global standards.

    Source: A & D India, Apr-May 2015

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  • „Safety Services“ at work

    Machine owners must ensure the safety of the plant and machinery used by their employees.

    A “siting” in the sense of a uniform safety-relevant evaluation with the aim of identifyingweak points can be useful here. This gives owners the peace of mind of knowing their machines comply with current standards and regulations and that their employees can work safely with them.

    Source: Sicherheit & Management, issue 4/2015, GIT Verlag

    Author:  Jörg Schreiber, Director Strategic, Market Development, K.A. Schmersal

Context Column

Fact Sheet

In the demanding field of machine safety the Schmersal Group is one of the international market and competence leaders. Based on more than 25,000 different switching devices the corporate group offers system solutions for the safety of man and machine.

The company is represented by seven manufacturing sites on three continents and with its own subsidiaries and sales partners in more than 60 nations.

Download Fact Sheet, en (doc)

Download Fact Sheet, de (doc)