Selection Guide for Low-Frequency Vibration Isolators: Precise Decision-Making from Requirement Matching to Performance Optimization

Technical classification of low-frequency vibration isolators: differentiated paths of passive and active

Low-frequency vibration isolators are divided into two main categories: active and passive. Passive vibration isolators rely on the natural frequency misalignment and damping energy dissipation of elastic elements (such as air springs, metal rubbers), which are low-cost and highly stable, and are suitable for medium-to-high-frequency vibration isolation.

Active vibration isolators, on the other hand, adjust damping in real-time through sensors and actuators to achieve dynamic compensation for low-frequency vibrations (0.5-5Hz), but they are more expensive.

For example, LeadTop’s VCM-D400 active vibration isolation strip adopts six-degree-of-freedom omnidirectional vibration isolation technology, achieving a vibration isolation efficiency of 95% within the 1-200Hz frequency band, making it suitable for ultra-precision equipment such as scanning probe microscopes.

The core elements for selecting a low-frequency vibration isolator are: precise matching of frequency, load, and environment

When selecting a low-frequency vibration isolator, it is necessary to consider three major dimensions:

1. Vibration frequency: If the excitation frequency is primarily low-frequency (such as ground vibration <5Hz), a vibration isolator with a lower natural frequency should be selected (such as LeadTop’s pendulum rod air-bearing vibration isolator ZDT-B series, with a vertical natural frequency of 1.0Hz);

If high-frequency vibration (such as mechanical shock >100Hz) predominates, a rubber vibration isolator (such as LeadTop’s POT-P series, with a natural frequency of 6.5-12Hz) can be used.

2.Load capacity: It is necessary to ensure that the load capacity of the vibration isolator is 120%-150% of the equipment weight. For example, LeadTop’s MOT-Z series heavy-duty platform base can support a load of 7500kg, suitable for large lithography machines;

while the ZDT-B series supports loads ranging from 0 to 500kg, covering the needs of small and medium-sized equipment.

3. Environmental adaptability: Stainless steel materials should be used in humid environments. Mobile platforms require vibration-proof trays, and laboratories need to be designed for silent operation.

LeadTop’s customized services: from standard products to scenario-based solutions

LeadTop provides a comprehensive solution ranging from standard vibration isolation platforms to customized vibration isolators. Its MOT-F series of honeycomb core optical platform decks adopt a broadband damping structure, reducing surface resonance peaks by 60%, with a flatness of ≤0.05mm/m², and supporting rapid delivery within 48 hours;