Diesel Generator
Moderate Machine manufactures silent and open frame diesel generators from 20kW to 1000kW, built around Cummins, Weichai and other proven engines. Every diesel generator set is water- or air-cooled, load-tested before shipping, and available with ATS automatic changeover, custom voltage and OEM branding. Our units keep power reliable on construction sites, in mines, hospitals, hotels and data centers across 50+ export markets. Whether you need a quiet silent diesel generator for a noise-restricted hotel or a heavy-duty open frame set for an industrial site, our engineers can match the right configuration to your load and environment.
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ZD-120 150kva Water Cooled Diesel Generators Set with Silent150kVA diesel generator is a medium-sized power generation equipment suitable for industrial, commercial or backup power supply. The rated output power is 150kva (120kw). It is usually equipped withAdd to Inquiry -
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ZD-80 100kva Diesel Engnine Powered Generators Soundless ...The basic structure of a diesel generator consists of a diesel engine and a generator. The diesel engine drives the generator to generate electricity, and it is known for its strong power and stableAdd to Inquiry -
300kw Industrial Water Cooled Open Type Power Diesel Gene...This 300kW/375kVA open-type diesel generator features a water-cooling design, offering powerful and stable performance. The open structure facilitates daily maintenance and heat dissipation. It isAdd to Inquiry
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What is a Diesel Generator?
A diesel generator converts diesel fuel into electrical power through a diesel engine driving an alternator, making it one of the most reliable prime and backup power solutions for industrial, commercial and residential use. Units are generally built in two configurations: open frame diesel generators, with a welded steel frame and no acoustic enclosure, suited to construction sites and plant rooms; and silent diesel generators, housed in a sound-attenuated canopy for hospitals, hotels and other noise-sensitive environments. Power output ranges from small 20kW sets to 1000kW+ industrial units, with voltage, frequency and control systems configurable to local requirements.
Advantages of Diesel Generators
Fuel Efficiency
Diesel engines deliver more usable power per liter of fuel than gasoline engines of equal output, keeping long-term running costs down for both silent and open frame diesel generator sets.
Durability and Longevity
Built for high compression and continuous duty, our diesel generators require fewer repairs over their service life, which typically runs 10,000-30,000 operating hours.
Reliable Performance Under Load
Each unit is load-tested before shipping, and with optional ATS (Automatic Transfer Switch) configuration, backup power can engage in as little as 8 seconds after a grid outage.
Low Noise for Sensitive Sites
Our silent diesel generators run in the 65-80dB range depending on model, with IP24-rated canopies and vibration-damping bases suited to hotels, hospitals and residential areas with strict noise limits.
Full Customization
From 20kW to 1000kW, in silent or open frame form, with your choice of voltage, ATS, engine brand and OEM nameplate branding.
Diesel Generator Specifications
|
Model |
Type |
Prime Power |
Rated Voltage / Frequency |
Rated Speed |
Cooling |
Noise Level |
|
ZD-150 (with ATS) |
Silent |
150kVA |
As per local demand |
1500 rpm |
Water Cooled |
80±2dB |
|
BF-150KVA |
Silent |
120kW / 150kVA |
As per local demand |
1500 rpm |
Water Cooled |
~80dB @7m |
|
ZD-100kW |
Open Frame |
100kW / 125kVA |
400V |
1500 rpm |
Water Cooled |
Open frame |
|
ZD-20 |
Silent |
20kW |
As per local demand |
1500 rpm |
Water Cooled |
Soundproof |
|
ZD-1000 |
Silent |
1000kW |
As per local demand |
1500 rpm |
Water Cooled |
Silent |
Exact voltage, dimensions and ATS configuration vary by model — request a datasheet for your specific power requirement.
Types of Diesel Generators
Silent Diesel Generators
Sound-attenuated, IP24-rated canopy design for hospitals, hotels, offices and residential areas where noise limits apply. Available with ATS for automatic backup switching.
Open Frame Diesel Generators
Welded high-strength steel frame with no acoustic enclosure, built for construction sites and industrial plant rooms that prioritize easy maintenance access and heat dissipation.
Applications of Diesel Generators
Hotels & Hospitality — Silent diesel generators with ATS keep guest rooms, central air conditioning, elevators, kitchens and fire safety systems running through grid outages without disrupting guests.
Medical Facilities — Backing up ICU equipment, oxygen pumps and other life-critical systems in hospitals and clinics.
Construction Sites — Portable open frame diesel generators providing power where site electrical infrastructure isn't yet available.
Mining Operations — Powering lights, drills, conveyors and excavating equipment; diesel generators supply over 70% of power needs in the mining sector.
Data Centers — Maintaining 24/7 uptime with automatic changeover to protect data integrity during outages.
Telecom Towers — Keeping communication infrastructure online during power interruptions.
Manufacturing & Processing Plants — Preventing downtime and equipment damage from unplanned grid outages.
Why Choose Moderate Machine as Your Diesel Generator Supplier?
OEM & Custom Configuration
We support full customization of power output, voltage, ATS integration, enclosure type and control systems, and accept OEM logo and nameplate branding on request.
Full Product Range
Our lineup spans open frame, silent (as low as 65-80dB) and trailer-mounted diesel generators, giving you a one-stop source for every job-site power requirement.
Traceable Manufacturing Quality
Every diesel generator carries a unique serial number tied to a full-process traceability system, from raw material sourcing through load testing to final inspection.
Reliable Delivery
Standard delivery is 20-30 days after order confirmation, backed by a dedicated logistics team shipping FCL/LCL out of Ningbo/Shanghai port.
Responsive Technical Support
Our sales and engineering team responds within 24 hours, with remote technical support and English-language operation guidance for every unit shipped.
How We Make Our Diesel Generators
Production
follows a modularized, standardized line — frame welding, unit assembly and wiring installation are carried out using tooling fixtures for positioning and torque wrenches for precise tightening, with self-inspection and mutual inspection at every stage. Our 1,000㎡ facility in the Zhejiang Air Power Machinery Industry Demonstration Base houses a 15+ person team, including dedicated R&D and export engineers.
Before packaging
every diesel generator undergoes systematic performance testing: no-load and mid-load runs, voltage and frequency stability checks, sudden load increase/decrease tests, and continuous-operation reliability testing, with results available as a test report or video on request.
Request Full Test Report & Videos
How To Order A Custom Diesel Generator
Share your power requirement, voltage, and site conditions (e.g., noise limits, ATS needed).
Receive a tailored configuration, datasheet and quotation from our engineers.
Confirm payment (typically 30% deposit / 70% before shipment) and trade terms (FOB, CIF, EXW, etc.).
Production, load testing, and optional video or third-party inspection before shipment.
Shipping, installation guidance and 1-year warranty with ongoing remote technical support.
Customer Case: Ghana Hotel Backup Power
Ghana — ZD150 Silent Diesel Generator For Star-Rated Hotel Backup Power
A star-rated hotel in Ghana needed reliable backup power for guest rooms, central air conditioning, elevators, kitchen equipment and fire safety systems, but faced three challenges: frequent grid outages and voltage instability that risked guest complaints and lost business; heavy AC and elevator loads demanding stable, high-capacity supply; and strict municipal noise and emissions limits on generator use in the city center.
We supplied a 150kVA silent diesel generator (ZD120) fitted with an ATS (Automatic Transfer Switch) for seamless changeover within 8 seconds of a grid failure. The unit uses a reinforced acoustic canopy and vibration-damping base to meet urban noise standards, an upgraded fuel system tuned for locally available diesel quality, and intelligent monitoring with multiple protection layers. An English-language control panel and spare-parts kit were provided along with remote operator training.
Results: Changeover time stayed at 8 seconds or less, delivering 99.9% power availability with zero outage-related guest complaints; operating noise held at 80±2dB with no environmental complaints; and equipment failure rate has stayed below 0.5%, with routine maintenance handled entirely by the hotel's own staff.
Certifications & Quality Control
Moderate Machine's manufacturing is certified to ISO 9001 quality management standards (Certificate No. 37124Q0097R0S, issued by SPRING Certification Services (Shanghai) Co., Ltd., valid through May 23, 2027). Every diesel generator passes systematic no-load, load and reliability testing before shipment, with full raw-material-to-finished-product traceability available on request.
Frequently Asked Questions About Diesel Generators
Q: What is the basic working principle of a diesel generator?
A: A diesel engine converts fuel's chemical energy into mechanical energy through combustion, which rotates a crank inside the generator to produce electricity.
Q: What is the life expectancy of a diesel generator?
A: Most units run 10,000-30,000 operating hours, roughly 20-25 years of typical use, and can reach 50,000+ hours with proper maintenance.
Q: What's the difference between a silent and open frame diesel generator?
A: Silent models use a sound-attenuated, IP24-rated canopy for noise-sensitive sites like hotels and hospitals. Open frame units skip the acoustic enclosure, lowering cost and simplifying maintenance access for construction sites and plant rooms.
Q: Can you supply a diesel generator with ATS for automatic backup switching?
A: Yes — our ATS-equipped silent diesel generators can switch to backup power within about 8 seconds of a grid outage, as used in our Ghana hotel installation.
Q: Can the voltage and frequency be customized?
A: Yes, voltage, frequency (50Hz or 60Hz) and phase configuration can be built to match your local grid.
Q: What power range do you manufacture?
A: From 20kW compact silent units up to 1000kW industrial sets.
Q: How long is delivery time?
A: Standard delivery is about 20-30 days after order confirmation; in-stock units ship faster.
Q: What is your MOQ?
A: No MOQ for in-stock units; MOQ for made-to-order units is discussed based on your configuration.
Q: Can you accept OEM orders and custom branding?
A: Yes — we regularly produce OEM units and can apply your company logo to the nameplate and packaging.
Q: What payment terms do you accept?
A: Typically 30% deposit by T/T before production, 70% before shipment; other methods can be discussed.
Q: What warranty do you provide?
A: A 1-year warranty covering the generator and related technical support.
Q: Which trade terms are available?
A: FOB, CIF, CFR, EXW, CPT and other Incoterms as needed.
Q: Do you provide factory audits or third-party testing?
A: Yes — we support factory visits and can coordinate designated third-party testing and audit reports.
Q: Do you offer spare parts and after-sales support?
A: Yes — spare parts, installation/operation training and 24-hour remote technical support are all included.
Get a Free Quote for Your Diesel Generator
Tell us your power requirement and site conditions, and we'll respond with a tailored configuration and quotation — no MOQ on in-stock models, and full customization available for OEM and project orders.
Quzhou Zhongdu Machinery Technology Co., Ltd. is one of the most professional diesel generator manufacturers and suppliers in China. We warmly welcome you to wholesale customized diesel generator made in China here from our factory.
