Essential details
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Product Introduction
Silent Marine Generator Product
1. Product Overview
SLEEPER i Series variable-speed inverter marine diesel generators are tailor-made for yachts, leisure crafts and light commercial vessels. Unlike conventional fixed-speed marine generators that run steadily at 1500/3000 RPM, this series adopts self-developed variable-speed permanent magnet inverter technology. It dynamically adjusts engine RPM according to real-time electrical load, cutting fuel consumption by up to 30%.
Powered by globally recognized Kubota / Yanmar water-cooled diesel engines and water-cooled permanent magnet alternators, each unit is equipped with a patented multi-layer soundproof enclosure, delivering ultra-low operating noise down to 51dBA @7m. The compact, lightweight design saves limited cabin space, while clean pure sine wave output fully protects precision marine equipment including navigation radar, satellite receivers, air conditioners and battery charging systems.
Every complete set is pre-fitted with full marine supporting accessories: seawater filter, water lock muffler, oil-water separator, expansion tank and 10-meter remote control panel for plug-and-play onboard installation. All units pass CE and ISO certifications, fully complying with international leisure vessel electrical standards.
2. Core Product Highlights
1.30% Fuel Saving Variable-Speed Inverter Technology
Engine speed auto-adjusts within 2200–3000 RPM to match actual load; no useless high-speed idling under light loads, reducing fuel cost and extending engine maintenance intervals.
2.Ultra Compact & Lightweight Structure
30% smaller footprint and up to 50% lighter weight than traditional fixed-speed generators, ideal for narrow yacht engine compartments.
3.Ultra-Quiet Marine Operation
Multi-layer composite sound insulation canopy + dual anti-vibration rubber mounts suppress noise and vibration; only 51–53dBA at 7 meters, ensuring quiet rest during anchorage and overnight voyages.
4.High-Stability Pure Sine Wave Output
Voltage fluctuation ≤3%, frequency deviation ±0.1%, ultra-low harmonic distortion, zero interference to sensitive on-board electronics.
5.Marine-Grade Environmental Adaptability
Dual-circuit fresh water heat exchange cooling system; full anti-salt-spray, anti-moisture and anti-mildew coating. Stable operation under 25° continuous hull heeling and 30° intermittent tilt in rough seas.
6.One-Sided Centralized Maintenance Design
All oil filters, fuel filters, coolant ports and electrical interfaces are concentrated on one side; single door opening completes all daily inspection and part replacement, cutting crew maintenance labor.
7.Intelligent Full-Protection & Optional Parallel Function
Auto emergency shutdown against low oil pressure, high coolant temperature, over-speed, overvoltage and undervoltage; optional parallel module links multiple units to expand total power for large power demands.
8.Complete Standard Supporting Kit
Factory pre-assembled all marine pipelines and fittings; shipyards and ship owners do not need to purchase extra spare parts separately.
3. Main Technical Reference Parameters
i Series Variable Speed Inverter Models (3kW–30kW)
| Model | Continuous Power | Intermittent Peak Power | Noise @7m | Dimension (L×W×H, mm) | Net Weight | Matching Engine | Cooling System |
|---|---|---|---|---|---|---|---|
| HC-MG5i | 3.5kW / 4.4kVA | 4kW / 5kVA | 53dBA | 450×450×558 | 85kg | Single-cylinder SP12 | Dual-circuit heat exchanger |
| HC-MG6i | 5kW / 6.3kVA | 5.5kW / 6.8kVA | 53dBA | 450×450×558 | 90kg | Single-cylinder SP12 | Dual-circuit heat exchanger |
| H-MG8i | 6kW / 7.5kVA | 6.4kW / 8kVA | 51dBA | 478×445×558 | 118kg | Kubota Z482 (2-cyl) | Dual-circuit heat exchanger |
| H-MG10i | 8kW / 10kVA | 8.6kW / 10.8kVA | 51dBA | 578×445×558 | 140kg | Kubota D722 (3-cyl) | Dual-circuit heat exchanger |
| H-MG15i | 12kW / 15kVA | 12.6kW / 15.8kVA | 51dBA | 800×560×630 | 205kg | Yanmar 3TNV76 (3-cyl) | Dual-circuit heat exchanger |
| H-MG30i | 25kW / 29kVA | 30kW / 37.5kVA | 51dBA | 980×620×720 | 330kg | Yanmar 4-cylinder | Dual-circuit heat exchanger |