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A picture of Vibratecs spring isolator VT42XX used for vibration and shock control on marine engines, fans, compressors etc.

Spring Isolator VT42XX

A very soft spring isolator with integrated adjustable snubbing. This isolator has a natural frequency between 5-9 Hz and a load range of 50 - 300 daN depending on which type you choose. Designed especially for suspension of mobile equipment for example suspension of propulsion engines, generating sets, compressors, deck houses etc.

Product Characteristics

All metal isolator with a spring in high tensile steel, cushions in 18/8 stainless steel. Housing in zinc plated steel.

Natural frequency: 5 – 9 Hz.
Mechanical strength: 5 g.
Temperature range: -90 ºC – +300 ºC

This isolator has the DNV type approval. Read More.

Product Applications

The task of the movement limiters is to only reduce the movements and from when the set-up is exposed to external forces.
The integrated motion limiters must be adjusted upon installation and when the engine is in its operating condition, i.e. when oil and water have been filled and all equipment has been assembled, this to achieve maximum isolation during operation.
When the isolator is properly adjusted, only the spring should carry the static load. Any unevenness in the bed must be made with shims, see our installation instructions.

Technical Specifications

A technical drawing of Vibrates spring isolator VT41XX from the side view
A technical drawing of Vibrates spring isolator VT41XX from the top view

spring-isolator-vt42xx-technical-specifications.xlsx

Load Ranges

Ref Load range in daN (≈kg) Damping Amplification (Q)
VT4211 50 - 100 Low damping 6 - 10
VT4212 100 - 200 Low damping 6 - 10
VT4213 200 - 300 Low damping 6 - 10

Downloads

  • Installationsmanual sv – Fjäderisolator VT42XX