As the global demand for high-efficiency and low-noise HVAC (Heating, Ventilation, and Air Conditioning) systems continues to grow, Shanghai Songjiang Shock Absorber Group Co., Ltd. remains committed to supplying high-quality, customized vibration isolation solutions for international clients.

Recently, an HVAC installation company in India partnered with us to order a batch of spring vibration isolators specifically designed for chiller units. These products have now completed manufacturing and quality inspection and are being prepared for shipment to the client’s designated port.

Overview of HVAC System Types and Applications

In both building construction and industrial projects, HVAC systems play a vital role in climate control and air circulation. Different HVAC systems carry varying equipment loads and vibration characteristics, requiring appropriate isolator solutions:

• Chiller Systems (Large Central Air Conditioning): Includes centrifugal and screw-type chillers, widely used in commercial complexes, hospitals, and industrial buildings.

• VRV/VRF Systems: Multi-split systems ideal for office buildings and medium-sized residential or commercial spaces with centralized control and complex piping.

• Split AC Systems: Wall-mounted or floor-standing air conditioners used in homes, with limited installation space and lightweight units.

• Fresh Air Systems: Improve indoor air quality through air exchange, often supported by fans and ducts.

• Air Handling Units (AHU) and Fan Coil Units (FCU): Typically integrated with central AC systems for zone-specific air conditioning and fine control.

Recommended Isolator Solutions & Rationale

🔧 Why Use Spring Vibration Isolators?

For large HVAC units like the screw chillers used in the Indian client’s project, which operate at low frequency and carry significant weight, we recommend robust and stable spring vibration isolators.

Key Advantages:

• High vibration isolation performance, especially for low-frequency heavy-load equipment

• Long spring travel effectively absorbs wide-amplitude oscillations

• Durable structure suitable for 24/7 operation

• Adjustable stiffness to match equipment load

For example, installing free-standing spring isolators under a screw chiller significantly reduces vibration transmission to the floor, minimizing structural noise and enhancing comfort in the building.

🏠 Are Rubber Dampers Necessary for Residential AC Systems?

For light-load applications such as home or office split AC systems, where vibration is mild but frequent, rubber dampers (also known as rubber pads or damping blocks) are a cost-effective choice.

Benefits of Rubber Dampers:

• Affordable and easy to install

• Absorb high-frequency, low-amplitude vibrations effectively

• Anti-slip and shock-absorbing, preventing unit displacement or wall resonance

• Extend the service life of outdoor condenser units

For instance, placing rubber pads under a split AC’s outdoor unit reduces the risk of wall-borne noise and avoids long-term structural fatigue.

🧪 When to Use Air Spring Isolators?

In specialized environments—such as clean rooms in hospitals, precision laboratories, data centers, and theaters—where ultra-low vibration and noise are critical, we recommend air spring isolators.

Advantages:

• Superior isolation for low-frequency vibrations

• Auto-leveling and dynamic load adjustment

• Wide load range, suitable for heavy and precision equipment

• Protects sensitive building structures and ensures compliance with acoustic and environmental standards

Project Summary & Client Feedback

The Indian client’s order is designated for a large commercial building project involving multiple screw chiller units and air distribution systems. After technical consultation and selection, they opted for our FLS series free-standing spring isolators.

The client highlighted their satisfaction with our isolators previously used in Middle Eastern projects, leading to renewed trust and continued collaboration for this project.

Shipping & Quality Assurance

All vibration isolators in this batch are manufactured and tested to international export standards, with complete labeling and installation instructions provided. We ensure that once delivered, clients can implement installations quickly and reliably.

At Shanghai Songjiang Shock Absorber Group, our core philosophy is “Quality First, Service-Oriented.” We are dedicated to providing integrated vibration control solutions for HVAC systems worldwide.

Conclusion

Though small in size, vibration isolators play a crucial role in the stable, quiet, and efficient operation of HVAC systems. Songjiang Group will continue to serve the Indian and global markets with tailored products, including spring vibration isolators, damping rubber mounts, and air spring isolators, helping every HVAC system perform at its best.

📞 Contact us today for product catalogs, technical consultation, or customized solutions.