In modern industrial and construction environments, the risk of seismic activity is a serious concern. Whether in high-rise buildings, data centers, hospitals, power stations, or HVAC systems, the stability of essential equipment during an earthquake is crucial. Traditional vibration isolators are no longer sufficient — seismic vibration isolators are now the standard for critical protection.

Engineered for both vibration isolation and seismic restraint, seismic spring vibration isolators combine vertical shock absorption with lateral displacement control. These devices are equipped with reinforced structures, directional restraints, and durable finishes, making them ideal for harsh environments and seismic-prone regions.

1. Key Features of Seismic Vibration Isolators

• Multi-directional restraint design
  Prevents excessive displacement caused by seismic shocks or sudden machine startup.

• Heavy-duty spring and frame construction
  Springs offer 50% overload capacity; powder coating ensures corrosion resistance.

• Internal damping materials
  Eliminate metal-to-metal impact noise and enhance stability.

• Adjustable leveling mechanism
  Simplifies post-installation alignment and compensates for uneven equipment bases.

2. Product Overview – Five Seismic Spring Vibration Isolator Models

🔷 Type JM3 Seismic Vibration Isolator

Ideal for lightweight and small-to-medium equipment such as fans, compressors, and pumps. Compact structure with basic seismic restraint, suitable for indoor equipment in commercial or residential buildings. Color-coded springs and top-mounted adjustment bolts ensure easy installation and inspection.

🔷 Type DHT Seismic Vibration Isolator

Designed for mid-load equipment like chillers, cooling towers, and pump stations. Equipped with directional restraints to prevent horizontal movement. This model meets both industrial vibration control and seismic safety requirements with a high-strength compact frame.

🔷 Type HFY / HFZ Seismic Vibration Isolator

Heavy-duty isolators for seismic zones and large-scale equipment. Suitable for generators, large HVAC units, and power distribution systems. Features dynamic deflection up to 100mm and load capacity up to 18,660 kg. Integrated rubber spring cups reduce noise, and lateral stiffness ensures seismic stability.

🔷 Type JKM-3 Seismic Vibration Isolator

Semi-enclosed structure for medium-sized equipment such as cooling fans, air compressors, and chiller modules. Allows easy visual inspection of spring condition. Lateral restraint improves anti-seismic performance, while damping material between plates eliminates impact noise. Height adjustment bolt included for precise installation.

🔷 Type KC Seismic Vibration Isolator

General-purpose solution with a semi-enclosed frame and integrated lateral restraints. Suitable for a wide range of mechanical equipment across commercial and industrial buildings. Offers vibration isolation, seismic restraint, anti-slip base, and adjustable height in one compact unit.

3. Custom Solutions Available

In cases where equipment requires non-standard supports or has unique structural limitations, we offer custom seismic vibration isolators. Based on your project drawings or technical requirements, our engineering team will design tailor-made isolators to match your equipment and site conditions.

4. Application Scenarios

• Industrial equipment bases in seismic zones

• HVAC systems in commercial high-rises and data centers

• Power generation units, air handling systems, and cooling towers

• Projects with elevated anti-vibration and seismic protection requirements

Seismic protection is not an option — it’s a necessity.
The right seismic spring vibration isolator ensures safety, performance, and long-term stability for your mission-critical equipment.