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27. October 2017

Vibration isolation for air conditioners in the rail sector

Getzner Werkstoffe has developed the spring and damper combination Isotop DZE Railway specifically for use in train carriages. According to the company, this product effectively protects the passenger area from vibrations caused by air-handling units and other fittings mounted on the vehicle body or roof. Isotop DZE Railway will be unveiled for the first time at the “Railways Interior” trade fair from 14 – 15 November 2017 in Prague, Czech Republic.

Isotop DZE Railway is made of stainless steel – the spring and damper combination using PU materials can be tailored to the area of application (Source: Getzner)

Isotop DZE Railway is made of stainless steel – the spring and damper combination using PU materials can be tailored to the area of application (Source: Getzner)

Isotop DZE Railway is used on roof-top or underfloor air-handling units and other fittings to effectively reduce the propagation of structure-borne noise into passenger areas. The polyurethane materials Sylomer, Sylodyn or Sylodamp are used in the stainless steel core of the Isotop products. The spring and damper combination can be optimally tailored to the area of application to permanently reduce vibrations in loads of 50 to 1,000 kg. “For the bearing of HVAC units, we can guarantee an insulating effect up to 12 dB higher than when using rubber-metal products,” said Thomas Gamsjäger, Product Manager at Getzner.

Resistant to weather effects

The use of different damping materials gives Isotop DZE Railway a high load capacity of up to 5 g whether under compression or tension. It also has a low overall height of approximately 45 mm. Both the housing and the end-to-end stainless steel axle are made of 1.4302 stainless steel and prevent rupture when the element is subjected to strong horizontal forces such as sharp braking (emergency stop), cornering and wind load, or negative momentums such as breaks in sleepers. The polyurethane materials from Getzner also exhibit lasting resistance to weather effects and extremely low settling behaviour, resulting in a much longer service life compared to rubber-metal elements, said the company. “Our materials are used in railway infrastructure, where a life expectancy of up to 50 years is required. We are able more or less to rule out brittleness or hardening with crack formation and undesirable settling,” said Thomas Gamsjäger.

Istotop DZE Railway is designed to be fitted to train sets to prevent structure-borne noise and vibrations from propagating into the passenger area (Source: Getzner)

Istotop DZE Railway is designed to be fitted to train sets to prevent structure-borne noise and vibrations from propagating into the passenger area (Source: Getzner)

Specifically designed for use in the rail sector

The new Isotop DZE products are certified for use in the rail sector according to DIN EN/IEC 61373. They effectively suppress vibrations and structure-borne noise, significantly enhancing passenger comfort. “Isotop DZE Railway can also be used to protect sensitive components in units and switch cabinets. They have also been shown to be extremely beneficial when transporting goods sensitive to vibrations and impacts,” added Thomas Gamsjäger.

Getzner markets its vibration protection solutions around the world. Alongside its locations in Buers, Austria, and in Germany, the company also has offices in China, France, India, Japan, Jordan and the USA. Its distribution network in Europe is complemented by its distribution partners in the USA, South America and the Far East. Partners in a total of 35 countries around the world distribute Getzner Werkstoffe products to every location.

www.getzner.com/en

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