Industrial Silencers ISO 9001:2015 Certified
Sound Attenuators Manufacturer
ECOTONE™ sound attenuators are engineered to effectively reduce noise generated by air or gas flow while maintaining minimal pressure drop. Designed to ensure uninterrupted airflow, these attenuators—also known as industrial silencers—are widely used across industrial facilities, power plants, steel plants, and mixed-use applications.
Eco Series — rectangular
Select a length to compare performance
Insertion loss at 1 kHz
2400 mm unit · nominal
Rectangular attenuator bank — fabricated at the ECOTONE facility prior to dispatch.
Comprehensive Range of Acoustic Attenuators
Ecotone Systems offers a complete range of sound attenuators and noise silencers tailored to meet various industrial noise-pollution control requirements. We manufacture both ready-made and custom-built silencers based on site conditions and technical needs. Our attenuators are widely used in HVAC systems, industrial fan inlets, discharge sections, radiators, cooling towers, and generator noise control applications.
Types of Sound Attenuators We Provide
We design different types of sound attenuators depending on the construction and application of the system. Circular and rectangular attenuators are developed as per the inlet or outlet configuration of the equipment. We also manufacture bend attenuators, cross-talk attenuators, air-relief silencers, and several specialized variants to achieve maximum noise reduction with optimal airflow.
Selecting the Right Acoustic Attenuator
Choosing the right acoustic attenuator depends on various factors, including the type of equipment, location of installation, pipeline shape, indoor or outdoor conditions, humidity levels, and acceptable pressure drop. ECOTONE experts assist clients in selecting suitable attenuators from our standard or custom-designed options to ensure maximum efficiency and acoustic performance.
Applications of ECOTONE Noise Control Engineering Solutions
ECOTONE Noise Control Engineering provides a complete range of noise control products and services for various industrial applications. Our acoustic solutions include:
- Acoustic enclosures for air-conditioning intake systems
- Acoustic enclosures for generators
- Stand-alone acoustic plant rooms
- Central ventilation systems
- Workshop ventilation solutions
- Cooling tower noise control
- Wall grilles
- Acoustic ventilation screens
We also offer specialized acoustic solutions such as Anechoic/NVH Test Chambers, Acoustic Louvers, and Acoustic Steel Doors for advanced industrial and testing requirements.
Contact Us – Get Expert Noise Control Solutions by Ecotone Systems
Reach out to Ecotone Systems for professional assistance in sound attenuators, industrial silencers, noise control engineering, and custom acoustic solutions. Our technical team is ready to support your project requirements with reliable guidance, quick responses, and high-quality products. Connect with us today for consultations, quotations, or site assessments.
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Additional Benefits of ECOTONE Attenuators
Our acoustic attenuators are engineered using advanced scientific design and high-grade materials that ensure long-term performance even in harsh industrial environments. Each unit undergoes strict quality testing to deliver consistent noise suppression, thermal stability, and resistance to corrosion.
With a focus on sustainability, ECOTONE products are designed to improve workplace safety, enhance machine efficiency, and contribute to a quieter and more environmentally responsible industrial operation.
Technical data
Performance Data — Rectangular Attenuators (Eco Series)
Insertion loss by octave band
MODELS Eco-900 / Eco-1200 / Eco-1500 / Eco-2400
| Model / Length | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
|---|---|---|---|---|---|---|---|---|
| Eco-900900 mm | 4 | 7 | 18 | 34 | 43 | 38 | 22 | 24 |
| Eco-12001200 mm | 6 | 10 | 23 | 40 | 47 | 42 | 28 | 26 |
| Eco-15001500 mm | 6 | 16 | 32 | 42 | 48 | 42 | 32 | 36 |
| Eco-24002400 mm | 10 | 28 | 38 | 46 | 52 | 50 | 46 | 49 |
Octave-band response
All four Eco Series lengths peak in the 1 kHz band. Attenuation rises with unit length across every band, with the largest gains at low frequency.
Insertion-loss values are nominal, measured to [ADD TEST STANDARD — e.g. ISO 7235] under stated airflow conditions. Actual site performance varies with duct configuration, flow velocity and breakout noise. Contact our team for a project-specific selection.
Sound Attenuator datasheet PDFFAQ
ask us anything
How do sound attenuators work?
Sound attenuators use internal acoustic materials and baffle designs that absorb, dissipate, or cancel sound waves traveling through ducts. This reduces overall noise levels without restricting airflow.
Where are sound attenuators used?
They are commonly used in HVAC systems, industrial ventilation lines, power plants, commercial buildings, generator rooms, cooling towers, and any environment where airflow-related noise needs to be controlled.
What types of sound attenuators are available?
The most common types include rectangular attenuators, circular attenuators, bend attenuators, cross-talk attenuators, and air-relief silencers. Each type is designed for different system configurations and noise reduction needs.
Do sound attenuators reduce airflow?
High-quality attenuators are designed to maintain smooth airflow with minimal pressure drop. When properly selected, they deliver effective noise control without compromising system performance.