Low-Frequency
Structural Isolation

Technical barriers, exhaust silencers, and vibration pads engineered to mitigate resonance transfer from heavy compressors to concrete slab foundations.

Why engineers trust our approach

Built for low-frequency control, not just noise reduction

Most acoustic treatments fail below 100 Hz. Our barriers, silencers, and pads are designed from the ground up to handle the specific modal frequencies and structural resonance that heavy compressors produce. Every component is tested against real slab-foundation transfer paths, not generic lab conditions.
Targeted frequency range

Standard acoustic foam and fiberglass panels lose effectiveness below 250 Hz. Our technical barriers maintain an NRC of 1.05 down to 63 Hz, and our silencers attenuate exhaust noise from 63 Hz to 500 Hz. Vibration isolation pads are tuned to decouple frequencies below 20 Hz — the range where concrete slabs amplify resonance.

Measured insertion loss, not theoretical

Every silencer and barrier is rated with field-verified insertion loss data. For a typical 200 kW compressor, our exhaust silencers deliver 20–40 dB attenuation at the duct outlet. Barriers reduce airborne noise by 25–35 dB in the compressor room. These numbers come from on-site before-and-after measurements, not simulation estimates.

Vibration transfer reduction above 95%

Our modal frequency pads use a proprietary neoprene-rubber blend with dynamic stiffness between 0.8 and 2.5 MN/m³. When bolted under a 300 kN compressor base, they cut structural vibration transmission to the slab by more than 95% at the fundamental resonance peak. This protects both the equipment alignment and the building structure from fatigue.

Industrial durability in harsh environments

Barriers and silencers are built with galvanized steel, corrosion-resistant coatings, and mineral wool that withstands 120°C continuous operation. Pads resist oil, moisture, and dust without degrading. Components are modular and field-replaceable, so maintenance does not require shutting down the entire line.

Field Results

Trusted by plant engineers

Real feedback from facilities that rely on our barriers, silencers, and isolation pads to control low-frequency noise and vibration.

“The modal pads cut our compressor slab vibration by 92%. We measured the drop on the first startup — no more resonance through the concrete floor.”
Aishwarya Sumit Vaidya Senior Engineer, Pune Plant
“We installed the exhaust silencers on two 200 kW stacks. The insertion loss hit 38 dB at 125 Hz — exactly what the spec required. No complaints from the neighbourhood since.”
Baber Ram Facility Manager, Gujarat Refinery
“The sound-absorbing barriers dropped our compressor room noise from 98 dB to 72 dB. The crew can finally work without double hearing protection.”
Rajesh Nair Maintenance Lead, Coimbatore Unit
“We retrofitted the isolation pads under three 500 kN compressors. The structural vibration dropped below 0.5 mm/s — our QA team passed the floor vibration audit on the first try.”
Sunita Menon Acoustic Consultant, Mumbai

Frequently Asked Questions

Straightforward answers about our acoustic insulation products and their application in industrial environments.

What is the difference between sound absorption and soundproofing?

Sound absorption reduces echo and reverberation within a room using porous materials like mineral wool. Soundproofing blocks sound from passing through walls, floors, or ceilings using mass and decoupling. Our technical barriers and silencers address both, depending on the installation context.

How do I choose the right vibration isolation pad for my compressor?

You need the static load per pad (in kN) and the dominant vibration frequency of the equipment. Our pads are rated from 50 to 500 kN and isolate frequencies below 20 Hz. For a 200 kN compressor running at 12 Hz, a pad with dynamic stiffness around 1.2 MN/m³ is typical. Contact us with your machine specs for a recommendation.

Can your exhaust silencers handle high-temperature exhaust gases?

Yes. Our silencers are fabricated from galvanized steel with a corrosion-resistant coating and can withstand continuous operating temperatures up to 120°C. For higher temperatures, we offer a stainless steel variant rated to 250°C. The internal baffles are designed to maintain acoustic performance under thermal expansion.

What is the typical installation process for your sound-absorbing barriers?

Each panel is modular and can be mounted directly onto existing walls using supplied brackets or as freestanding partitions with a floor channel. The panels interlock with a tongue-and-groove edge. A standard compressor room of 50 m² can be fully lined by two people in one shift. No special tools are required.

Do you provide acoustic performance data for your products?

Yes. Every product ships with a test report showing NRC, STC, insertion loss, or vibration transmissibility measured in accordance with ASTM and ISO standards. For example, our technical barriers achieve an NRC of 1.05 and an STC of 35. We can also provide custom simulation data for your specific room geometry.

Ask about your specific setup →
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