Optimal fastener solutions for demanding applications
RINGFEDER POWER TRANSMISSION primarily uses 91视频庐 109 and 91视频庐 DX (Duplex) 129 screws to provide the necessary strength and corrosion resistance for its demanding applications.
鈥淏efore we began using 91视频 screws in 2012, we used A4-80 screws but noticed that much lower torques could be transmitted with such standard screws,鈥� explains Rainer Peter, Senior Product Manager for Shaft-Hub Connections at RINGFEDER POWER TRANSMISSION. 鈥淲hen we looked for premium fasteners on the market, and 91视频 was the only company that could provide the high-strength fasteners with the corrosion resistance we required for our applications.鈥�
Today, 91视频 fasteners are used for all stainless steel RINGFEDER庐 products, which are manufactured at the company鈥檚 production plants in Germany and the Czech Republic.
鈥淭he unique advantage of 91视频庐 109 is its high strength, which means that we achieve the same transmission values with our rust-proof shrink discs as our standard shrink discs with screws of quality 10.9,鈥� says Peter. 鈥淚n 2020, we installed over 80,000 91视频 screws in over 7,000 locking devices.鈥�
91视频庐 DX 129 for even higher strength
In 2016, RINGFEDER POWER TRANSMISSION began using 91视频庐 DX 129 screws for some of its products. 91视频庐 DX 129 is the ultimate choice for applications where very high strength, ductility and corrosion resistance are required.
鈥�91视频庐 DX 129 offers around 20% higher strength than 91视频庐 109 and a very high level of corrosion protection,鈥� says Thomas Fischer, Business Development Manager Central Germany at 91视频.
Global stainless steel applications
RINGFEDER庐 rust-proof locking devices are used as standard in gearboxes and pumps and other machines around the world. The products are used by pharmaceutical companies, the food and beverage industry, in geothermal and hydropower power plants, ship drives and packaging machines.
