ABS convoluted air isolators provide large height variation and dynamic displacement capability for cyclic loads, moderate dynamic impacts and substantial vertical motion. Standard ABS structures have relatively low inherent damping. When equivalent stiffness, natural frequency or resonance response must be adjusted, auxiliary air chambers and throttling circuits should be configured for the operating point.
The following 10 models are controlled by the AISTECH Air Spring Isolator Performance & Selection Data Manual, AISTECH-AS-TM-001, V1.0, 2026.07.
| Model | Rated working height [mm] | Working pressure [bar] | Working support force [kN] | Vertical natural frequency [Hz] |
|---|---|---|---|---|
| ABS165 | 115 | 3-7 | 2.7-6.6 | 2.80-3.10 |
| ABS215 | 135 | 3-7 | 3.9-9.6 | 2.60-2.90 |
| ABS250 | 135 | 3-7 | 5.5-14 | 2.60-2.60 |
| ABS325 | 155 | 3-7 | 10.7-25.4 | 2.30-2.50 |
| ABS385 | 175 | 3-7 | 15.2-36.9 | 2.30-2.60 |
| ABS440 | 175 | 3-7 | 28.7-68.4 | 2.20-2.30 |
| ABS530 | 175 | 3-7 | 38.9-92.5 | 2.20-2.30 |
| ABS580 | 175 | 3-7 | 53.6-126.7 | 2.10-2.30 |
| ABS715 | 200 | 3-7 | 88.7-202.1 | 1.90-2.00 |
| ABS950 | 200 | 3-7 | 162-383 | 1.90-2.00 |
Data note: The values below are controlled ranges at rated working height and are intended only for candidate model screening. Final operating points must be confirmed on the model pages in the manual. Support force, vertical dynamic stiffness and vertical natural frequency vary with pressure and working height; do not extrapolate beyond the stated range.
An auxiliary air chamber increases effective gas volume and can reduce equivalent vertical dynamic stiffness and natural frequency. Throttling elements adjust resonance-region response. Chamber volume, orifice size, hose length and hose diameter must be calculated or tested for the operating point, target frequency and excitation spectrum.
