The 55kW Industrial 1500 RPM silent diesel generator is a premium standby and prime power solution engineered for medium-to-large commercial buildings, factories, hospitals, data centers, cold storage facilities, and industrial plants. Rated at 55kW / 69kVA prime power (cosφ=0.8) and operating at a smooth 1500 RPM, the lower engine speed reduces wear, extends service life, and keeps noise remarkably low compared to 3000 RPM portable units.
Powered by a four-cylinder, water-cooled, turbocharged diesel engine (Yuchai / Ricardo / Yangdong options available per market requirement), this unit delivers steady, high-torque performance under varying loads. Paired with a 100% copper brushless alternator with AVR (Automatic Voltage Regulator), it produces clean, stable 230V/400V three-phase power with ≤±1% voltage regulation and low THD — safe for sensitive electronics, servers, CNC machines, and medical equipment.
Housed in a weatherproof acoustic soundproof canopy, noise is reduced to 70–75 dBA @ 7m, making it suitable for noise-sensitive environments such as office parks, hotels, and residential-adjacent commercial sites. The 55kw diesel generator is ATS (Automatic Transfer Switch) compatible for seamless unattended backup: auto-start on mains failure, auto-stop when utility returns. A 24V electric start system with maintenance-free battery, large base fuel tank (8–10 hour runtime @ 75% load), and Deep Sea / Smartgen digital controller complete the package.
Prime Power 55kW / 69kVA — Standby 60.5kW / 75.9kVA — 3-Phase 400V/230V, 50Hz, PF 0.8
1500 RPM Water-Cooled 4-Cylinder Diesel Engine — Turbocharged, intercooled, low fuel consumption, long service life
AVR Brushless Alternator (100% Copper) — Self-excited, Class H insulation, IP23, ±1% voltage regulation, low THD
Silent Canopy Design — 70–75 dBA @ 7m, fire-retardant acoustic foam, lockable access doors, rain cap exhaust
ATS Compatible — Optional Automatic Transfer Switch for fully automatic backup operation
24V Electric Start System — Includes maintenance-free battery, battery isolator & charger
Large Base Fuel Tank — 130–160L standard, 8–10h runtime @ 75% load; extended day-tank available
Digital Control Panel — Deep Sea / Smartgen / ComAp controller with LCD display, alarms, event log, AMF function
Safety Protections — Low oil pressure shutdown, high coolant temp alarm, overspeed, overload circuit breaker
OEM/ODM Service — Custom brand, color, controller, socket box, ATS, trailer-mounted or containerized option
55kw Diesel Generator Technical Specifications
| TYPE | 55kW Industrial 1500 RPM Silent Diesel Generator | ||
| GENERATOR SET | Frequency(HZ) | 50 | 60 |
| Max Power(kW) | 53 | 55 | |
| Rate Power(kW) | 50 | 53 | |
| Rate AC Voltage(V) | 120、220、230、240、380、400 | ||
| DC Output(V/A) | 12/8.3 | ||
| Phase | Single/Three | ||
| Altermator Type | Self-excited with AVR | ||
| Starting System | Electric | ||
| Noise Level at 7m(dBA) | 72-74 | ||
| Fuel Tank Capacity(L) | 130 | ||
| Running Time(h) | 8 | ||
| ENGINE | Engine Model | Weichai,Ricardo, Quanchai, Yuchai, Yangdong, | |
| Engine Type | Four cylinder, upright, four stroke, water-cooled diesel engine | ||
| Combustion System | Direct | ||
| Fuel Type | 0#or-10#light disel fuel | ||
| DIMENSION | Packing Size(mm) | 2300X1000X1250 | |
| Gross Weight(kg) | 1000 | ||
Medium & large factories / manufacturing plants
Commercial office buildings, shopping malls, hotels
Hospitals, clinics & healthcare facilities
Cold storage warehouses & food processing
Data centers & telecom infrastructure
Municipal buildings & emergency backup
Mining & industrial auxiliary power
✔ 1500 RPM Durability — Half the engine speed of portable gensets means less vibration, lower noise, better fuel economy, and significantly longer engine life.
✔ Whisper-Quiet for Urban & Commercial Sites — Acoustic canopy keeps operation at 70–75 dBA, compliant with most urban noise regulations.
✔ Clean Power for Sensitive Loads — Brushless AVR alternator delivers tight voltage regulation and low harmonic distortion — ideal for IT, medical, and automation equipment.
✔ Seamless ATS Automation — Hands-free backup power for unattended facilities; critical for hospitals, data centers, and overnight operations.
✔ Proven Industrial Engines & Factory Support — Choose Yuchai, Ricardo, Yangdong or other reputable brands; CE/ISO certified; full load tested before shipment; 12-month / 1000-hour warranty; global spare parts supply.
Packing: Plastic wrap + plywood pallet (silent type) or plywood case (open type), export seaworthy
Warranty: 12 months or 1000 running hours (whichever first)
Included: Full load test report, operation manual, wiring diagram, spare parts list
Support: Online commissioning guidance, technical consultation, after-sales service network
