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.
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 plate, which can be ordered separately. For greater static loads, use multiple element isolators (consult us).
Technical Specifications
spring-isolator-vt4412-and-vt4422-technical-specifications.xlsx
Dimensions spring
| Ref. | D | d | H | h |
| (mm) | (mm) | (mm) | (mm) | |
| VT4412 | 50 | M10 | 60 | 50 ± 2 |
| VT4422 | 80 | M12 | 90 | 80 ± 2 |
Dimensions mounting plate
| Ref. | L | l | J | B | C | E | Thickness |
| (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 range
| Suffix | Load range in daN (≈kg) | |
| 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 |