40kW / 50kVA Open Type Diesel Generator
Exposed Engine Architecture | Engine: ZH4100ZD | SKU: YMDL-40GF-OPEN
- Half-Copper Brushed Alternator
- Industrial Diagnostics Controller
- Heavy-duty Steel Base Frame, IP23
- Base Fuel Tank, ≥8h Runtime at Full Load
Build Your Own Configuration
Custom builds are quoted individually via WhatsApp — pricing shown below for full transparency.
Engineering Data & Specifications
| Metric | Performance Values |
|---|---|
| System SKU | YMDL-40GF-OPEN |
| Rated Power (Standby) | 40 kW / 50 kVA |
| Rated Power (Prime) | 36 kW / 45 kVA |
| Rated Voltage | 400V / 230V (3-Phase 4-Wire) |
| Rated Frequency | 50 Hz |
| Power Factor | 0.8 (Lagging) |
| Engine Model | ZH4100ZD (Weifang) |
| Engine Type | 4-Stroke, Water-Cooled, In-line 4-Cylinder |
| Displacement | 4.15 L |
| Rated Engine Speed | 1500 RPM |
| Alternator | Half-Copper Brushed (Default) |
| Controller | Industrial Diagnostics System (Default) |
| Frame Construction | None (Heavy-duty steel base frame) |
| IP Rating | IP23 (Requires indoor/sheltered installation) |
| Fuel Tank Capacity | Base tank for ≥ 8 hours at full load |
| Dry Weight | 600 kg |
| Dimensions (L × W × H) | 1700 × 600 × 1100 mm |
| Starting System | Electric Start (12V / 24V) |
| Cooling System | Water-Cooled with Radiator |
| Certification | Conforms to ISO 8528 Design Standard / CE |
40kW Diesel Generator Safety Network
Protecting your 40kW Diesel Generator investment with real-time automated intervention.
Why it matters: Heavy-duty open generators often run in hot, dusty rooms. A sudden drop in oil or spike in temperature goes unnoticed until it's too late. This module is your automated mechanic.
Operating an open base-frame generator requires reliable fail-safes. Whether a stray piece of debris blocks the radiator or a sudden electrical fault occurs downstream on your site, the control module instantly isolates the problem, stopping the engine dead in tracks to preserve its mechanical integrity.
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40kW Oil SecurityMaintains optimum pressure for the ZH4100ZD block.
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Coolant GuardHalts the 40kW Diesel Generator instantly if temps rise.
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RPM GovernorStabilizes the 40kW output under shifting loads.
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Surge BlockCuts 50kVA surges before damaging your grid.
Core Advantages of the Open-Frame Build
Compact Footprint
Built on a rigid, space-saving steel skid. Ideal for retrofitting into small plant rooms or tight commercial basements without sacrificing structural integrity.
Unrestricted Cooling
Without a restrictive canopy, the unit benefits from maximum ambient airflow, ensuring the engine runs cool even during extended operation in hot, enclosed spaces.
Unobstructed Service Access
360-degree access allows mechanics to perform oil changes, filter swaps, and routine inspections in a fraction of the time compared to enclosed generator models.
Maximized ROI
By eliminating the cost of a sound-proof enclosure, you invest purely in reliable power generation. It’s the most cost-effective backup solution for dedicated generator rooms.
Seamless Installation
The exposed architecture simplifies the connection of external exhaust piping, fuel lines, and transfer switches, significantly reducing overall installation time and labor costs.
ZH4100ZD Dependability
Powered by the robust Weifang ZH4100ZD series. Known for its steady torque output, reliable fuel efficiency, and the widespread availability of low-cost maintenance parts.
Physical Dimensions & Weight
Frequently Asked Questions
Is 40kW enough power for my facility?
A typical 40kW generator can power lighting, refrigeration, water pumps, and several air conditioning units simultaneously. For a standard facility under 300m², 40kW is usually sufficient for essential loads. We recommend listing your equipment wattage for a precise sizing check.
How much fuel does the 40kW generator consume per hour?
At full load, the ZH4100ZD engine consumes approximately 7–8 litres of diesel per hour. At 75% load (typical operating condition), fuel consumption drops to around 5.5–6.5 litres/hour. The built-in base tank supports ≥8 hours of runtime at full load.
Can I install this open type unit outdoors permanently?
No. Open type generators must be installed indoors in a dedicated, well-ventilated generator room or under a protective shelter. They are not waterproof and should not be exposed to direct rain or extreme weather without a canopy.
What does the "Four Protection System" controller do?
The standard controller monitors four critical parameters in real-time: oil pressure, coolant temperature, engine over-speed, and over-current. If any parameter exceeds the safe threshold, the controller will automatically shut down the engine to prevent damage. It can be upgraded to a Full Auto (ATS) system for unmanned, automatic operation.
What is the difference between the brushed and brushless alternator options?
The default half-copper brushed alternator requires periodic brush replacement but is cost-effective for standard applications. The brushless variants (half-copper or full-copper) eliminate brush wear, provide cleaner power output, and are more suitable for sensitive electronics or installations with minimal maintenance access.
Do you offer wholesale or bulk order pricing?
Yes. As a factory-direct supplier, we offer competitive wholesale pricing for bulk orders. The listed price of $1,633 reflects the default single-unit FOB China price. Please contact us with your quantity and specifications for a tailored quotation.
Ready to Order or Need a Custom Quote?
Contact our team for bulk pricing, upgrade configurations, shipping estimates, and OEM options.