Construction industry products

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Construction and bridge bearings • Vibration absorbers • Lead-throughs and seals

Rubber is commonly used to isolate vibration and sound. Rubber is naturally elastic and has good isolation properties that can further be adjusted by modifying the properties of rubber compounds.

Typical vibroprotection applications using rubber include bridges, buildings that need to be isolated from their vibrating surroundings, isolating machines from their base, isolating motors from the frame of a vehicle or machine, rails that need to be isolated from the crossties, vibration isolation in pipelines, etc. In addition, noise is dampened by using various soundproofing sheets or by lining the area of impact with rubber, for example in peeling drums at sawmills.

Rubber-sheet bearings

Multi-layer, or laminated, rubber-sheet bearings are used for vibration dampening in, for example, bridges and under buildings and in steel structures. Laminated bearings, with vulcanized steel sheets between the rubber layers, are mainly used in bridges. This structure makes the bearings reliable and balances the load directed at the bearings.

Single-layer bearings are suited, for instance, for construction applications between concrete elements or steel structures. A single-layer bearing can be used to balance tensions and prevent oscillations, such as vibration and noise, from travelling in the structures.

Vibration isolators

The vibration isolator product family includes installation feet, vibration isolator rails, vibration isolator mats, cylinder isolators, and dampers. Usually the fastening and isolation needs of the target to be isolated determine the type of isolator to be used.

Using vibration isolation, either the cut-off of the acoustic bridge or the prevention of the forming of resonance, or actual isolation of vibration, can be achieved.

Lead-throughs and seals

The lead-throughs and seals we manufacture are often used in the industry as sealing material requiring both weather-resistance and many chemical properties typical of rubber. Some of the used materials include various rubber materials and liquid silicone that allows for extremely high resistance to temperatures. The lead-throughs and seals vary greatly in size and shape depending on the intended use, but all the products are always designed for optimal service life and usability. The design work is often carried out together with the end customer while utilising Teknikum’s materials know-how and product development possibilities.

 

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