Product details
Product details
The fundamental advantage of spring-based isolation: very low natural frequencies achievable with properly designed spring systems. While rubber and Sylomer® isolators typically achieve natural frequencies of 8-15 Hz, properly designed spring systems can achieve 3-6 Hz. That's significantly better isolation at very low frequencies where structure-borne vibration most commonly causes problems. The difference matters. The hybrid design addresses a fundamental limitation of pure spring systems: resonant amplification at frequencies near the natural frequency. By incorporating damping elements—typically rubber or Sylomer® pads in contact with the spring—the acoustic hanger limits the resonant amplification that can otherwise cause vibration amplification at certain frequencies. Springs without damping create new problems; springs with damping solve them. Multiple suspension geometries including bungee, conical, and blade designs allow optimization for different installation constraints and isolation requirements. Need to suspend equipment from limited headroom? Isolate ceiling systems from impact noise? Create floating floor systems? The acoustic hanger family includes configurations suitable for your application. Different geometries solve different constraints. These represent the most versatile vibration isolation solution available, combining low-frequency capability of steel spring isolation with damping characteristics of rubber or Sylomer® elements. Comprehensive vibration control across the full frequency spectrum for demanding acoustic isolation applications. **Key Features** - Spring plus damping hybrid design for complete isolation - Natural frequencies as low as 3-6 Hz - Excellent damping limits resonant amplification - Multiple geometries: bungee, conical, blade options - Load capacities from 5 kg to 500 kg per hanger - Galvanized or stainless steel construction - Temperature compensated design - Suitable for critical isolation applications **Technical Specifications** - Spring Material: Music wire or oil-tempered steel - Damping Element: Natural rubber or Sylomer® - Natural Frequency: 3-15 Hz depending on model - Damping Ratio: 5-15% of critical - Load Range: 5-500 kg per hanger - Deflection: 15-50mm under rated load - Housing Material: Galvanized or stainless steel - Temperature Range: -40°C to +120°C (stainless versions) - Load Capacity Tolerance: ±10% of rated capacity - Service Life: 20+ years with proper maintenance **Applications / Use Cases** Precision facilities including hospitals, laboratories, and semiconductor fabs require very low natural frequency isolation to protect sensitive equipment from building vibration. Acoustic hangers achieve the 3-6 Hz natural frequencies necessary for effective low-frequency isolation in these demanding applications. When precision matters, springs outperform rubber. Recording studios and broadcast facilities use spring-based ceiling hangers to isolate room structures from impact vibration transmitted through building elements. The low natural frequency prevents low-frequency rumble from HVAC systems, traffic, and adjacent activities from affecting critical monitoring environments. Studios need isolation below 10 Hz. Industrial equipment including air compressors, chillers, and pumps generates low-frequency vibration that can transmit through structural connections into occupied spaces. Acoustic hangers provide isolation sufficient to meet strict noise criteria in commercial and residential buildings. **Why Choose This Product** Acoustic Hangers deliver the lowest natural frequencies achievable with practical isolation hardware, providing effective low-frequency isolation that rubber or Sylomer® alone can't match. This capability is essential for applications where very low-frequency vibration causes problems. Sometimes you need springs, not rubber. The hybrid design incorporating damping elements prevents resonant amplification that can plague pure spring systems. This damping ensures predictable, stable isolation performance across the operating frequency range. Controlled springs work better than uncontrolled ones. Multiple configurations ensure appropriate solutions regardless of installation constraints. The variety of suspension geometries, materials, and load ratings allows custom-engineered solutions without the cost of fully custom products. Standard products with specialized configurations. **Frequently Asked Questions** **How do acoustic hangers differ from rubber hangers?** Spring-based acoustic hangers achieve lower natural frequencies (3-6 Hz) than rubber hangers (8-15 Hz), providing superior low-frequency isolation. The hybrid design also includes damping elements that limit resonant amplification. Springs for low frequencies, rubber for mid frequencies. **What is the natural frequency of these hangers?** Natural frequency depends on the specific model and loading, ranging from 3 Hz for heavy-duty models to 15 Hz for lighter-duty configurations. Detailed performance data is available for each model. Send us your load and we'll calculate the actual frequency. **Can these be used for outdoor applications?** Stainless steel versions are available for outdoor or harsh environment applications. These provide corrosion resistance and temperature tolerance suitable for exterior installations. Standard galvanized works for covered outdoor; stainless for direct exposure.