Building Materials
Super-Silent Diesel Generator
A super-silent diesel generator adds extra acoustic attenuation, a longer air path and a residential-grade silencer to reach noise as low as roughly 65 dB(A) at 7 metres, for the most noise-sensitive sites. OCALWA supplies super-silent gensets from 20 to 800 kVA, matched to your load and noise limit, from a verified ISO 9001 + CE factory.
The lowest noise, for sensitive sites
On top of the standard canopy, super-silent sets use thicker multi-layer acoustic lining, twin attenuators on the air in and out, a residential exhaust silencer and vibration isolation, pushing perceived noise down to a level suitable next to wards, guest rooms and homes.
The engine, brushless AVR alternator and controller are the same reliable core, so you gain quiet without giving up performance, parts availability or automatic standby operation with an ATS.
Key features
Specifications
| Power range | 20 to 800 kVA (prime / standby) |
|---|---|
| Noise level | As low as ~65 dB(A) at 7 m (model-dependent) |
| Enclosure | Extra-attenuated acoustic canopy, twin air silencers |
| Exhaust | Residential-grade silencer |
| Frequency | 50 Hz or 60 Hz |
| Voltage | 120/240V, 220/380V, 240/416V single or three phase |
| Engine | Choice of international diesel brands, water-cooled |
| Alternator | Brushless, self-exciting, AVR regulated |
| Controller | Digital, auto-start / ATS option |
| Certification | ISO 9001:2015 factory, CE available |
Configurations & options
Rating, engine tier, voltage and enclosure are matched to your load and grid. Send us the kW/kVA you need, whether it is prime or standby, your frequency/voltage and site conditions and we specify the right set.
Why choose super-silent
Meets strict noise limits
Where local rules or a hospital, hotel or residential neighbour demand very low noise, the extra attenuation keeps you compliant.
Same reliable core
You lose no performance or serviceability, the engine, alternator and controller match the standard sets.
Unattended standby
With an ATS it starts and stops automatically on mains failure and return, ideal for quiet backup at clinics and hotels.
Ready to import at container scale?
Frequently asked questions
A standard canopy runs about 70 to 75 dB(A) at 7 m; a super-silent build can reach roughly 65 dB(A) or lower, which sounds around half as loud to the ear. The exact figure depends on set size and load. For a fixed noise target, tell us the limit in dB(A) and the distance and we specify to it.
Super-silent enclosures are most common up to around 800 kVA. Larger sets are usually quieted with an acoustic room, exhaust and intake silencers rather than a single canopy. If you need both high power and very low noise, tell us and we propose the best enclosure or plant-room approach.
Standby rating is for backup when the grid fails, used a limited number of hours a year at varying load. Prime rating is for continuous running as the main power source, at a lower rated output for the same set. If it is your only power, size on prime; if it is grid backup, size on standby. We rate it to how you will actually run it.
The set is built with your choice from several established international diesel engine brands, paired with a brushless, self-exciting alternator with AVR voltage regulation. You pick the engine tier to match your budget, fuel and local service network; we confirm the exact pairing and its rating before order.
Yes. We build 50 Hz or 60 Hz and set the voltage to your grid (for example 120/240V, 220/380V or 240/416V, single or three phase). Latin America is mostly 60 Hz. Tell us your country's frequency, voltage and phase and we configure the alternator and controller accordingly.
The set uses mainstream international engines whose oil, fuel and air filters, belts and pumps are widely stocked across Latin America. We also supply a starter spares kit and can re-order alternator parts, the controller, AVR and hoses so downtime stays short.
Yes. Beyond the bare set we supply the automatic transfer switch (ATS), starting batteries, connection cables, remote monitoring and a starter spares kit, from a verified factory (ISO 9001 + CE). OCALWA arranges container or RORO shipping and full export documentation, and regularly ships to Colombia, Venezuela, Argentina, Paraguay and the Dominican Republic, quoting FOB, CFR or CIF.