Spring Isolators VT4412 and VT4422

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 is very low natural frequency of 6 – 8 Hz.

A picture of the spring isolators VT4412

Product Characteristics

Very soft spring isolators designed for loading in compression only.

Scrolls: aluminium
Weights for VT4412 (depending on suffix): 0.13 – 0.21 kg
Weights for VT4422 (depending on suffix): 1.20 – 1.50 kg
Maximum excitation amplitude: ± 1 mm.
Mechanical strength: 2 g
Natural frequency: 6 – 8 Hz
Amplification factor: < 4
Temperature range: -90° to +300° C.

Product Applications

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

Note

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

Technical Specifications

A technical drawing of the spring isolators VT4412 and VT4422

A graph of the spring isolator VT-4422 deflection curve

spring-isolator-vt4412-and-vt4422-technical-specifications.xlsx

Dimensions Spring Isolator

Ref.	D	d	H	h
Ref.	(mm)	(mm)	(mm)	(mm)
VT4412	50	M10	60	50 ± 2
VT4422	80	M12	90	80 ± 2

Mounting Plate Dimensions

Ref.	L	l	J	B	C	E	Thickness
Ref.	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
VT4412	90	69.6	10	60	7	11	4
VT4422	140	110	15	100	11	13	4

Load Ranges

Suffix	Load range in daN (≈kg)
Suffix	VT4412	VT4422
-01	6 -10	40 - 85
-02	8 - 14	65 - 125
-03	12 - 20	110 - 190
-04	18 - 30	175 - 270
-05	24 - 46	250 - 400
-06	40 - 75	360 - 560