For decades, Calenberg Ingenieure has been conducting research in the field of elastomeric materials technology and is a solution provider for elastic component mounts in the fields of construction, industry, the environment and railways.

The product range comprises special elastomer materials for special fields of application in sound and vibration insulation and reduction. Calenberg expertise reduces the risk of building damage thereby reducing maintenance costs, improves the living quality and protects against environmental effects such as traffic noise, vibration and impact sound. All activities of Calenberg Ingenieure are scientifically based and the physical measured values and data of the products are approved by official and independent institutes.

Constant research and development, over 45 years of experience and certified quality management is the reason for choosing Calenberg Ingenieure for successful projects at home and abroad.

Rail traffic causes airborne noise as well as vibrations or structure-borne sound. Residential and commercial locations are normally the sufferers of these emissions.

Calenberg elastomeric bearings are produced from high grade natural and synthetic rubbers. Due to the different variants within the product range, individual solutions for nearly every vibration and noise problem can be offered.

Why are there vibrations on the track? Wheels are noncircular, eccentric, unbalanced and have flat areas. The rail track is not perfectly straight and even due to the construction method and due to subsoil conditions. The track which has integrated vibration control offers an effective relief. At this point an elastomeric track mat or under ballast mat can be an important part e.g. of a floating­­ slab track or mass spring system. It also has the big advantage of increasing the durability of the track system, which reduces the maintenance costs of the track as well as of the rolling stock.

The different USM types are manufactured from high-quality rubber compounds. They are mechanically highly resilient and permanently weather-resistant. The mats are also characterized by very low water absorption and high electrical insulation resistance and allow drainage at the mat level.

The USM series is equally suitable for ballasted track and slab track systems.

Both are important resilient parts of rail fastening systems. Rail pads are installed directly under the rail foot to increase the elasticity of the ballast track. This brings about a more comfortable ride and protects the permanent way, from standard gauge railway to tram way as well as in varying dimensions.

The elasticity to slab track systems is brought about by high elastic micro cellular EPDM base plate pads installed between rib plate and concrete slab, reducing vibrations caused by track and wheel unevenness.

A new track system and tunnel structure at DB's Augsburg Central Station will be supported with Calenberg USM 1000 W.

At iaf 2022, Calenberg Ingenieure will present elastic mass-spring systems, EPDM intermediate layers and plates, and under ballast mats.

Calenberg Ingenieure's USM series provides solutions for isolating the permanent way, reducing both vibration and sound in its surroundings.

Calenberg Ingenieure provide elastomeric track and ballast mats as well as rail pads and baseplate pads in order to provide noise protection.

Railway-News magazine Issue 3, September 2022: Calenberg Ingenieure - Special Elastomer Materials for Railway Superstructures.

Railway-News magazine Issue 5, November 2021: Calenberg Ingenieure - Effective Vibration and Structure-Borne Sound Protection.

Our rail pads and base plate pads reduce any vibrations and structureborne sound produced in modern track bed structures. The perfect emission protection.

Use the form opposite to get in touch with Calenberg Ingenieure directly to discuss any requirements you might have.

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