Ultra-Low Frequency Isolation for Precision Equipment Protection

UNISORB® ST44-8.4 Spring Isolators are engineered to provide ultra-low frequency vibration isolation for the most demanding industrial and precision equipment applications. Utilizing high-performance steel springs, these systems deliver consistent, predictable isolation with a typical natural frequency in the 2–3 Hz range—ideal for eliminating environmental and structure-borne vibration.

Manufactured using advanced metallurgy and processes comparable to those used in high-performance automotive racing suspension systems, the springs provide exceptional durability, load capacity, and long-term reliability. Each isolator supports up to 8,400 lbs and can be configured to accommodate virtually any machine or foundation system.

ST44-8.4 isolators are supplied in a pre-loaded condition, allowing stable support during installation, including rebar placement and concrete pours—simplifying construction and improving accuracy. Each spring is wrapped in a damping mesh to reduce high-frequency resonance, while resilient bearing pads at the top and bottom accommodate minor surface irregularities.

Designed for severe vibration environments, these isolators are ideal for protecting sensitive equipment such as coordinate measuring machines (CMMs), metrology systems, precision machining centers, and other applications where accuracy is critical.

Supported by UNISORB’s engineering services—including vibration surveys, foundation design, and application analysis—Spring Isolators provide a complete, high-performance solution for achieving maximum vibration control and long-term operational stability.