Acoustic Enclosure Manufacturer in Coimbatore, Tamil Nadu
Akshayam Controls & Automation designs and fabricates acoustic enclosures for diesel generators and industrial machinery. An acoustic enclosure for a DG set is asked for as a sound proof canopy, a generator canopy or a DG acoustic enclosure; the same construction applied to machinery is called an industrial acoustic enclosure, a sound proof cabin or a noise proof cabin.
Construction is a welded structural steel skid and frame, clad in powder-coated sheet steel panels lined with high-density rockwool behind glass cloth and perforated sheet. Cooling and combustion air enter through baffled acoustic louvres sized to the engine's airflow demand, and the exhaust is routed out to a residential-grade silencer. The design target is the CPCB limit of 75 dB(A) at one metre.
Enclosures leave our Peelamedu works for sites in Coimbatore, Tiruppur, Erode, Salem, Karur, Madurai and Trichy, and for installations in Bengaluru, Kochi and elsewhere in South India. Many are supplied alongside the AMF / ATS panels and DG synchronization panels that control the same generator.
What is a Generator Acoustic Enclosure?
A generator acoustic enclosure, or sound proof canopy, is a weatherproof steel structure lined with sound-absorbing material that surrounds a diesel generator to cut the noise reaching everything around it.
Generator Acoustic Enclosure Construction
- Acoustic insulation: high-density rockwool behind glass cloth and perforated sheet metal
- Ventilation openings: acoustic louvres and baffles that move cooling air while containing noise
- Access: hinged, lockable doors with compression gaskets for routine checks and emergency stop
- Exhaust arrangement: openings and sleeves to route exhaust piping to an external silencer
- Structural frame: powder-coated panels on a welded steel skid, weatherproofed for outdoor use
Dimensions and airflow are set by the engine — its footprint, its heat rejection, its exhaust route and the space available on site.
How Does a Generator Acoustic Enclosure Reduce Noise?
Sound Source
The engine produces combustion noise, mechanical noise and cooling fan noise, each at different frequencies.
Acoustic Barrier
Rockwool-lined panels absorb sound energy across the mid and high frequencies; the sheet steel mass blocks the rest.
Ventilation Control
Baffled inlets and outlets let cooling air through while forcing sound to reflect and lose energy on the way out.
Noise Attenuation
The combination brings noise at the measurement point down to the required level.
Note: Actual noise reduction depends on generator type, enclosure layout, acoustic materials, installation and testing conditions.
Key Features of Our Acoustic Enclosures
Sound Attenuation
High-density rockwool behind glass cloth and perforated sheet, with an insertion loss designed to meet the CPCB 75 dB(A) at one metre requirement.
Robust Steel Construction
CNC-cut and folded sheet metal panels on a welded structural steel channel frame and skid base.
Engineered Ventilation
Intake louvres and discharge cowls sized to the engine's combustion and cooling airflow — the single most common failure in a badly built canopy.
Access Doors
Lockable hinged doors with compression gaskets, positioned at the filters, dipstick, fuel fill and control panel.
Weather Protection
Sloped roof, weather gaskets and powder-coated panels for generators standing outdoors year-round.
Custom Dimensions
Built to your generator's footprint, with cable and fuel entries matched to your site layout.
Acoustic Enclosure Applications Across Industries
Sound proof canopies turn up wherever a generator sits close to people, or close to a boundary wall:
Textile Industries
High-capacity standby sets at weaving and spinning mills, often near residential boundaries.
Engineering Industries
Air compressor acoustic enclosures, blower and pump skid canopies, alongside generator work.
Hospitals & Healthcare
Quiet zones maintained around emergency backup generation.
Commercial Buildings
Generator soundproofing for malls, office towers and mixed-use developments.
Educational Institutions
Campus generators enclosed so classes continue through a power cut.
Infrastructure Projects
Weatherproof canopies for sets at pumping stations and utility installations.
Applications of DG Acoustic Enclosures
Beyond standby generation, the same construction becomes an industrial acoustic enclosure, a sound proof cabin or a noise proof cabin around other noisy plant:
Industrial Generators
Canopies for high-kVA standby sets in factories and process plants.
Machinery Enclosures
Air compressor acoustic enclosures, plus sound proof cabins around positive displacement blowers and pumps.
Commercial Complexes
Enclosures designed against local zoning and boundary noise limits.
Construction Sites
Weatherproof canopies for mobile and skid-mounted sets on project sites.
What We Consider When Designing an Acoustic Enclosure
- Generator dimensions: canopy sized to the skid footprint with working clearances inside
- Engine heat and airflow: intake and discharge areas calculated from the engine's combustion and cooling air demand
- Exhaust system: openings, sleeves and brackets to carry the exhaust and silencer safely
- Acoustic requirement: rockwool density and sheet perforation matched to the noise level the site has to meet
- Service access: doors placed at filters, dipstick, fuel fill and controls
- Installation location: sloped roof and weather gaskets outdoors, height-constrained builds indoors
- Fuel and cable paths: entries pre-cut to suit cable tray runs and fuel lines
- Structural integrity: skid, lifting points and panels designed for lift stresses and wind loading
Benefits of Generator Acoustic Enclosures
- Brings generator noise down to the level the site is required to meet
- Protects the set from rain, dust and direct sun
- Supports compliance with CPCB and local noise limits
- Engine-specific ventilation prevents the overheating a poorly vented canopy causes
- Lockable doors keep the generator secure
- Access points placed where maintenance actually happens
- Powder-coated finish holds up outdoors in Tamil Nadu's humidity
- Cable and fuel routes planned before fabrication, not cut on site
- Dimensions matched to your generator rather than a standard box
- Integrated lift points make transport and placement safer
Note: Actual acoustic performance depends on engine configuration, enclosure design, materials and testing conditions.
Our Acoustic Enclosure Manufacturing Process
Assessment
Generator make, model, kVA rating, physical dimensions, heat rejection, exhaust layout and site conditions.
Canopy Design
General arrangement drawing showing dimensions, frame, door positions, louvre areas and exhaust routing, for your approval.
Material Selection
Rockwool density, sheet thickness, gaskets, hinges, louvre profile and paint finish selected for the duty and the environment.
Fabrication
Structural frame welded, panels CNC-punched and folded, powder coated, then insulation and perforated sheet installed.
Quality Check
Panel alignment, powder coat finish, door sealing and pre-cut openings inspected against the approved drawing.
Delivery & Support
Delivered with mounting drawings and installation assistance on site.
Custom Generator Acoustic Enclosures
No two standby installations are the same, so three things are set per job:
- Dimensions: length, width and height set to clear the generator skid with proper internal working space
- Accessibility: doors on both sides, aligned to the dipstick, filters, fuel fill and control panel
- Airflow and louvres: ventilation area calculated from the engine's combustion and cooling air requirement
Note: Final dimensions, panel configuration and accessories are designed around your generator specification.
Why Choose Akshayam Controls for Acoustic Enclosures?
Designed Around Your Generator
Canopy built from the actual make, model, footprint and heat rejection figures, not from a standard size chart.
Coimbatore Manufacturer
Fabricated at our Peelamedu works, with design reviews you can attend and support across Tamil Nadu.
Ventilation Engineered, Not Guessed
Louvre areas calculated against engine airflow. An under-ventilated canopy is quiet and useless — the set derates or trips on high temperature.
Robust Steel Build
Quality steel, welded skid, corrosion-resistant powder coating and industrial-grade hinges and gaskets.
Whole-System Supplier
The same works builds the AMF / ATS panel, the sync panel and the load bank for the same generator.
Support Through Installation
From site assessment and design through fabrication, inspection, delivery and installation assistance.
Acoustic Enclosure Specifications
| Parameter | Specification Details |
|---|---|
| Product Type | Generator Acoustic Enclosure / Sound Proof Canopy |
| Application | DG set noise control and weather protection |
| Generator Make & Rating | All major makes; 15 kVA to 2000 kVA |
| Noise Level | Designed to the CPCB limit of 75 dB(A) at 1 metre; typical insertion loss 25 to 30 dB(A) |
| Enclosure Dimensions | Built to the generator set footprint |
| Installation | Indoor or outdoor |
| Acoustic Treatment | High-density rockwool, glass cloth lined, behind perforated sheet |
| Ventilation | Baffled acoustic louvres sized to engine combustion and cooling airflow |
| Access Doors | Hinged doors with locks and compression seals |
| Exhaust Provision | Pre-planned pipe penetrations with heat sleeves |
| Cable Entry | Bottom gland plates or custom panel entries |
| Fuel System Provision | Pass-through points for fuel filling and return lines |
| Exterior Finish | Powder-coated sheet steel, custom colours available |
| Structural Construction | Welded structural channel skid base with lifting points |
| Testing / Inspection | Dimensional check, door seal check and visual inspection |
Acoustic Enclosure Manufacturer Serving Coimbatore & Tamil Nadu
Canopy work reaches us from mills, hospitals, campuses, commercial developments and project sites — anywhere a generator has to run without becoming a complaint. Coimbatore, Tiruppur, Erode, Salem, Karur, Madurai and Trichy account for most of it, with further installations in Bengaluru and Karnataka, Kochi and Kerala, and across South India. Send your generator make, model and kVA rating and we will size the canopy before quoting.
Frequently Asked Questions About Acoustic Enclosures
What is a generator acoustic enclosure?
A generator acoustic enclosure is a sound-insulated steel canopy built around a generator set to cut noise transmission and protect the machine from weather. It is also called a sound proof canopy, a generator canopy or a DG acoustic enclosure.
What noise level does an acoustic enclosure achieve?
The design target in India is the CPCB limit of 75 dB(A) at one metre from the enclosure surface. Typical insertion loss is 25 to 30 dB(A), though the figure achieved depends on the engine, the enclosure design and how the set is installed. Noise is verified by measurement on site, not by specification alone.
What is the purpose of a DG acoustic enclosure?
Noise control first — meeting CPCB and local limits, and keeping neighbours and staff from being affected. Beyond that it protects the set from rain, dust and sun, and keeps it locked and secure.
How does an acoustic enclosure reduce generator noise?
Sheet steel provides mass that blocks sound, rockwool behind perforated sheet absorbs it, and baffled air paths let cooling air through while making sound reflect and lose energy before it escapes.
Can acoustic enclosures be customised for different DG sets?
Yes. Length, width, height, door positions, cable entries and exhaust openings are all built to your specific generator make and model. The same fabrication covers industrial acoustic enclosures, air compressor acoustic enclosures and sound proof or noise proof cabins for machinery.
Can acoustic enclosures be used outdoors?
Yes. Outdoor canopies have sloped roofs, weather gaskets, lockable handles and corrosion-resistant powder coating, which matters in Tamil Nadu's humidity and monsoon.
How is ventilation managed inside an acoustic enclosure?
Louvre area is calculated from the engine's combustion and cooling airflow requirement. This is the part that gets skipped by cheap fabricators — an under-ventilated canopy makes the set run hot, derate or trip, and no amount of acoustic lining fixes that.
Does the enclosure include an exhaust silencer?
The canopy includes the openings, sleeves and brackets to carry the exhaust out to a silencer. The silencer itself is specified with it — a residential-grade silencer is usually needed alongside the enclosure to reach the target noise level, since exhaust noise is a separate path from casing noise.
Can exhaust and cable entry arrangements be customised?
Yes. Penetrations, heat-insulating sleeves and gland plates are pre-planned to match your piping and cable runs, so nothing is cut on site.
Do you manufacture acoustic enclosures in Coimbatore?
Yes. Design, assembly, panel fabrication, insulation, powder coating and inspection are all carried out at our works in Gandhi Maa Nagar, Peelamedu, Coimbatore.
How can I request an acoustic enclosure quotation?
Send your generator make, model, kVA rating, physical dimensions, exhaust layout and site conditions to sales@akshayamcontrols.co.in, or call our engineering desk on +91 89403 32552.
Need a Customised Acoustic Enclosure for Your Generator?
Send us your generator make, model and kVA rating with the space you have available. Our engineers will size the canopy and the ventilation, advise on the exhaust and silencer arrangement, and quote an enclosure built for your set.
Phone: +91 89403 32552
Email: sales@akshayamcontrols.co.in