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Image of Vibratec Spring Isolator VT4423-06 Delta Magni

Spring Isolator VT44XX-DM

Springs with high-class anti-corrosion protection for use in harsh environment, outdoors in marine and offshore applications.

Product Characteristics

Very soft isolators designed for loading in compression only.

The springs are corrosion protected with pre-treatment Delta-Seal (zinc particles) and final surface treatment Magni 565. This provides high-class anti-corrosion protection and is particularly suited for springs without causing risk of hydrogen embrittlement. The end aluminum scrolls are protected with hard anodizing. This is an electrolytic surface treatment of aluminum which provides a very hard, corrosion resistant surface.

Maximum excitation amplitude: ± 1 mm.
Mechanical strength: 2 g.
Temperature range: -90° to +300°C.
Weight (depending on suffix): 1.2 – 1.5 kg

Product Applications

Isolation of machines – fans, compressors, generating sets, engines etc. with or without seismic blocks. Protection of fragile equipment from vibrations.

Spring Isolator VT4423
Isolation of machines rotating at 600 rpm and above

Spring Isolator VT4422
Isolation of machines rotating at 800 rpm and above

Technical Specifications

A technical drawing of our VT44XX-DM series spring isolator.
A technical drawing of our VT44XX-DM series spring isolator.

spring-isolator-vt44xx-dm-technical-specifications-1.xlsx

Spring Isolator Dimensions

Ref. D d H h
(mm) (mm) (mm) (mm)
VT4422 80 M12 90 80 ± 2
VT4423 80 M12 90 80 ± 2
VT4424 80 M12 140 120 ± 5

Mounting Plate Dimensions

Ref. L l B C E Thickness
(mm) (mm) (mm) (mm) (mm) (mm)
VT4422 140 110 100 11 13 4
VT4423 140 110 100 11 13 4
VT4424 140 110 100 11 13 4

Load Ranges

Suffix Load range in daN (≈kg)
VT4422 VT4423 VT4424
-01 40 - 85 30 - 50 70 - 110
-02 65 - 125 50 - 80 95 - 130
-03 110 - 190 80 - 125 125 - 160
-04 175 - 270 125 - 195 160 - 230
-05 250 - 400 195 - 310 210 - 310
-06 360 - 560 310 - 420 300 - 420
-07 - - 350 - 550

Natural Frequency

Ref. Natural frequency Amplification factor
(Hz)
VT4422 6 - 8 < 4
VT4423 5 - 6 < 5
VT4424 3 - 4 < 8