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Retrofitting Perimeter Protection in 2026: Outdoor Security with rotec APS

by Karl Marx, rotec Berlin | May 27, 2026 | General, Main contributions, Metalworking, Products, Security fences | 0 |

rotec APS provides retrofittable perimeter protection and professional open-area security for existing fences, walls, gates, access roads, solar parks, industrial sites, outdoor storage areas, and critical infrastructure. The system integrates fence monitoring, electric fencing, sensors, radar, video surveillance, alarm technology, and control center connectivity into a site-specific security solution. This allows existing property boundaries to be technically upgraded, security-related incidents to be detected earlier, and clear response protocols to be established. rotec supports operators from the initial site assessment through consulting, planning, and installation to maintenance, testing, repairs, and service contracts.

Renson ventilation grille configurator 2026: How rotec W11, W12 and other types correspond to Renson models

by Karl Marx, rotec Berlin | April 10, 2026 | General, Main contributions, Louvre facades, Air technology, Ventilation grille, Metalworking, Products | 0 |

The rotec Renson ventilation grille configurator makes it easier to identify the corresponding grille types in the new shop. This article explains why rotec W11 corresponds to Renson type 411, how the W-series naming system works, and what designers, metal fabricators and technical buyers should consider when selecting ventilation grilles and weather louvres. It also shows how established Renson louvre profiles can be combined with custom manufacturing in Berlin, direct configuration and personal technical advice.

Skylights for Flat Roofs: Selection, Prices, and Renovation for Industry Professionals

by Karl Marx, rotec Berlin | Feb. 7, 2026 | Main contributions, Air technology, Products | 0 |

At rotec, you no longer buy skylights for flat roofs based on a hunch, but rather on clear technical criteria and transparent prices. In this article, you’ll learn how to compare around 60,000 fully priced configurations in the rotec online store, what role the number of shells, the mounting ring, and accessories play, and how to seamlessly integrate features like smoke and heat exhaust ventilation (RWA) and roof access into your roofing design. You’ll also receive a practical checklist, learn about common planning mistakes, and get specific tips on how to select the right skylight for new construction or renovation projects.

Expanded metal facades (2026): Planning, installation, costs and practical guidance from rotec

by Karl Marx, rotec Berlin | Feb. 5, 2026 | General, Main contributions, Louvre facades, Metalworking, Products, Security fences, Expanded metal - Expanded metal | 0 |

In modern architecture, façade systems play a decisive role, not only for the aesthetics of a building, but also for its functionality and sustainability. One innovative solution that has become increasingly popular in recent years is the use of expanded metal for façades and climate enclosures on the roof. This technique offers a variety of benefits, from improving energy efficiency to creating unique visual effects. One company leading the way in this field is rotec Berlin, with 35 years of experience in the metalworking industry.

Razor wire (2026): Extended length, installation and practical specification guidance

by Karl Marx, rotec Berlin | Jan. 7, 2026 | General, Railroad projects, Main contributions, Home, Metalworking, Products, Security fences | 2 |

This article provides a practical guide to NATO wire for use in industry, correctional facilities, and security projects. You’ll find clear guidelines on extension length, 52 coils, and coil spacing, as well as installation instructions for fence caps, Y-beams, and existing fences. In addition, the text includes calculation examples, common mistakes, and a checklist for bidding and acceptance.

Laser Cutting in Berlin: Custom Laser-Cut Parts from rotec

by Karl Marx, rotec Berlin | Oct. 11, 2025 | General, Main contributions, Home, Perforated plates, Metalworking, Products | 0 |

Laser-cut parts made of steel, stainless steel, and aluminum at rotec in Berlin. Find out what CAD data, tolerances, and specifications for further processing are needed to receive a customized quote.

GRP gratings in the railroad sector

by Karl Marx, rotec Berlin | Nov 29, 2024 | General, Railroad projects, Gratings, Main contributions, Metalworking, Products, Security fences | 0 |

GRP gratings are the perfect choice for modern railroad infrastructure. With outstanding properties such as corrosion resistance, electrical insulation and high load-bearing capacity, they are ideal for manhole covers, safety fences, maintenance walkways and train washing systems. Thanks to EBA approval and manufacturer-related product qualification (HPQ) in accordance with DBS 918020, they meet the highest safety and quality standards. Durable, maintenance-free and versatile, GRP gratings offer an economical and sustainable solution that increases the efficiency and safety of your projects. Perfect for purchasers and construction companies.

3200 sqm rotec aluminum gratings for ceiling suspensions: A highlight at Stuttgart 21

by Karl Marx, rotec Berlin | Sep 24, 2024 | General, Railroad projects, Gratings, Main contributions, Home, Louvre facades, Metalworking, Products | 0 |

The major Stuttgart 21 project is one of the largest transportation infrastructure measures in Germany. In addition to the redesign and conversion of Stuttgart Central Station, it also includes the construction of several underground stations, including the underground station at Stuttgart Central Station and Stuttgart Mitte Station. As part of this project, rotec GmbH Berlin supplied a total of 3,200 m² of aluminum grating for the ceiling suspensions, which were specially adapted to the high requirements of Deutsche Bahn.

Razor wire training rolls: Safe training and effective deterrence for military and police training

by Karl Marx, rotec Berlin | Jul 20, 2024 | General, Main contributions, Metalworking, Products, Security fences | 0 |

In military and police training facilities, the safety of trainees is a top priority. Conventional NATO wire (also known as razor wire) with razor-sharp blades poses a considerable risk of injury, particularly during handling and training. To minimize this risk and still offer realistic training conditions, rotec presents the innovative solution: reusable razor wire training reels without blades.

rotec Klima enclosure louvre wall in Frankfurt with impressive panorama

by Karl Marx, rotec Berlin | Oct 19, 2023 | General, Main contributions, Louvre facades, Ventilation grille, Metalworking, Products | 0 |

At the heart of the impressive skyline of Frankfurt am Main stands an impressive testimony to technical expertise and design innovation: a louvre wall façade, designed, planned and installed by rotec, fitted with louvres from our long-standing premium partner Renson.

For 35 years, rotec has been shaping the slatwall industry, bringing unmatched experience and expertise to the table. Our continuous commitment to the highest quality has made us a leading player in the field. Every project we complete reflects our firmly held values of consistency, precision and excellence.

Category: Main contributions

Retrofitting Perimeter Protection in 2026: Outdoor Security with rotec APS

Renson ventilation grille configurator 2026: How rotec W11, W12 and other types correspond to Renson models

Skylights for Flat Roofs: Selection, Prices, and Renovation for Industry Professionals

Expanded metal facades (2026): Planning, installation, costs and practical guidance from rotec

Razor wire (2026): Extended length, installation and practical specification guidance

Laser Cutting in Berlin: Custom Laser-Cut Parts from rotec

GRP gratings in the railroad sector

3200 sqm rotec aluminum gratings for ceiling suspensions: A highlight at Stuttgart 21

Razor wire training rolls: Safe training and effective deterrence for military and police training

rotec Klima enclosure louvre wall in Frankfurt with impressive panorama

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