Silent Type
CN04GF 3 kW Single-Cylinder Silent Diesel Generator Set
3 kW ≈ 3.8 kVA 110V
Model CN04GF · 178F engine · 70-75 dB(A) · 14 h continuous running
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Walk into any generator market in Africa and you will meet two shapes: the boxed “silent” type and the skeletal “open frame” type. They often share the same engine and the same electrical output — so which one deserves your money?
A silent set has its engine and alternator mounted inside a steel canopy lined with sound-absorbing foam. Air goes through baffled ducts, so the noise drops to about 70-75 dB(A) at 7 metres — comparable to a busy street, not a construction site. The canopy also protects the machine from rain, dust and sun.
An open frame set is the classic tubular steel chassis with everything exposed. Air flows straight through, which helps cooling and makes every part visible and easy to service. Noise is typically 80-85 dB(A) at 7 metres — fine on a building site, intrusive in a living area.
| Factor | Silent type | Open frame |
|---|---|---|
| Noise at 7 m | 70-75 dB(A) | 80-85 dB(A) |
| Weight (3.5 kW class) | ≈130 kg | ≈71 kg |
| Weather protection | Full canopy | Needs shelter |
| Cooling & service access | Good (baffled) | Excellent (direct) |
| Best for | Homes, shops, clinics, hotels, night use | Sites, mines, farms, rental fleets |
| Typical price | Higher | Lower |
Take our 3.5 kW class as an example: the CN04GF silent and the CN04GF open frame use the same 178F air-cooled diesel engine and the same copper alternator, producing the same 3 kW continuous. The differences are the canopy, the weight (130 kg vs 71 kg) and the noise. There is no “weaker” version.
Both types burn roughly the same fuel per hour at the same load, because the engine is the same. A silent canopy does not consume power — it only shapes the sound.
If you are buying one set that must do everything, choose silent — it works day and night, rain or shine. If you are equipping a site or a rental business, mix both: open frames for the field, one silent set for the site office.
Tell us your use case on WhatsApp and we will point you to the right version — silent or open frame — with prices and loading data.
Silent Type
Model CN04GF · 178F engine · 70-75 dB(A) · 14 h continuous running
Silent Type
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Silent Type
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Send us your equipment list and site conditions, we will recommend a model.