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A picture of our spring isolator VT-4413-4423 perfect for vibration isolation

Spring Isolators VT4413 and VT4423

This is a metal isolator made with a spring in high tensile steel, resilient cushion of 18/8 stainless steel wire mesh. Excellent for vibration isolation because of its very low natural frequency of 5-6 Hz.

Product Characteristics

Very soft to soft isolators designed for loading in compression only. 

Scrolls: aluminium
Weights for VT4413 (depending on suffix): 0.13 – 0.21 kg
Weights for VT4423 (depending on suffix): 1.20 – 1.50 kg
Maximum excitation amplitude: ± 1 mm.
Mechanical strength: 2 g
Natural frequency: 5 – 6 Hz
Amplification factor: < 5
Temperature range: -90° to +300° C. 

Product Applications

Isolation of machines rotating at 600 rpm and up to 800 rpm – fans, compressors, generating sets, engines etc. with or without seismic blocks. Protection of fragile equipment from vibrations. 

For machines with rotations of 800 rpm and over see our spring isolators VT4412 and VT4422.

Note 

The mounts are delivered without mounting plate, which can be ordered separately. For greater static loads, use multiple element isolators (consult us).

Technical Specifications

A technical drawing of the spring isolators VT4413 and VT4423
A technical drawing of the mounting plate for the spring isolator VT4413 and VT4423

spring-isolator-vt4413-and-vt4423-technical-specifications.xlsx

Dimensions Spring Isolator

Ref. D d H h
(mm) (mm) (mm) (mm)
VT4413 50 M10 60 50 ± 2
VT4423 80 M12 90 80 ± 2

Mounting Plate Dimensions

Ref. L I J B C E Thickness
(mm) (mm) (mm) (mm) (mm) (mm) (mm)
VT4413 90 69.6 10 60 7 11 4
VT4423 140 110 15 100 11 13 4

Load Ranges

Suffix Load range in daN (≈kg) Stiffness (N/mm)
VT4413 VT4423 VT4413 VT4423
-01 5 - 7 30 - 50 6 39
-02 6 - 9 50 - 80 8 64
-03 9 -14 80 - 125 11 108
-04 14 - 20 125 - 195 18 167
-05 20 - 30 195 - 310 27 265
-06 30 - 50 310 - 420 40 353