It’s hard to find a company that embodies the German spirit of innovation better than Fischerwerke GmbH & Co. KG. Founded 62 years ago, it is now one of the world leaders in fastener technology.
For 30 years, Professor E.h. Senator mult. E.h. Dipl.-Ing. (FH) Klaus Fischer has been at the helm of the company group. Under his leadership, Fischer has developed into an internationally active enterprise offering reliable, cost-effective solutions in the chemical, steel and plastic sectors. The foundation for this was laid in 1958 by company founder Artur Fischer with the invention of the “S plug”, an expanding plug made from plastic. With more than 1,100 registered inventions and 570 granted intellectual property rights in Germany alone, he is one of the country’s most influential innovators. His most important inventions include the synchroflash (1949), undercut anchors for concrete and fischertechnik construction kits. Nowadays innovation is on every employee’s agenda at Fischer, and it is not limited to products. Each year the staff generate 14 patent applications for every 1,000 employees.
This innovative force can presently be seen in Waldachtal in the Northern Black Forest region, where approximately nine million plastic plugs in all imaginable varieties are produced every day. In order to manufacture these enormous product volumes, the company currently has 101 injection presses available. The majority of these precision machines were made by Arburg. Injection presses from Ferromatik Milacron and Netstal are also used. The injection presses operate 24 hours a day. Around 11 metric tons of plastic granulate are processed each day for the daily output of 9 million plastic plugs. Fischer relies on absolute top performance. Everything must work perfectly. The central maintenance department, with a staff of 12 led by Werner Stahl, is responsible for the maintenance of the equipment in the Waldachtal plant. Their duties also include filling, monitoring and servicing the hydraulic systems of the equipment. An injection press holds 200 to 700 litres of hydraulic fluid, depending on the model. HLP 46 hydraulic fluids meeting the DIN 51524 T2 standard are used. Quality is a key consideration in the selection of the hydraulic fluid. Fischer’s maintenance technicians impose precisely defined requirements on the hydraulic medium, such as:
- maintaining a high purity class, starting with the delivered fresh fluid;
- good filtration characteristics;
- rapid air separation capability, since excessive dissolved air in the fluid can cause cavitation in pumps and valves;
- zinc-free and low-ash for the latest generation of machines;
- high aging stability;
- reliable corrosion protection.