Choosing the right generator directly determines whether your job gets done on time. A complete generator set built with a power system, control panel, noise canopy, shock absorbers, and exhaust layout works simply. The diesel engine ignites atomized fuel with filtered air, pushes pistons, turns the crankshaft, and generates electricity. Picking the wrong size wastes money and damages your tools.
Generator Parameters:
| Power | 30kw | 100kw | 150kw | 200kw | 300kw | 400kw |
| cylinders | 4 cylinder | 6 cylinder | 6 cylinder | 6 cylinder | 6 cylinder | 6 cylinder |
| voltage | 400/230V | 400/230V | 400/230V | 400/230V | 400/230V | 400/230V |
| Frequency Range | 50HZ | 50HZ | 50HZ | 50HZ | 50HZ | 50HZ |
| Rotating speed | 1500rpm | 1500rpm | 1500rpm | 1500rpm | 1500rpm | 1500rpm |
| Cylinder diameter *stroke (mm) | 100*115 | 105*125 | 105*130 | 126*130 | 126*155 | 135*160 |
| Rated current | 54A | 180A | 270A | 360A | 540A | 720A |
| Phase | Three-phase four-wire | Three-phase four-wire | Three-phase four-wire | Three-phase four-wire | Three-phase four-wire | Three-phase four-wire |
How Big of a Generator Do You Need for Your Site?
The core formula for generator capacity is 100kW = 125kVA = 180A current. Always add a 20% safety margin to your total calculated load.
Many buyers forget motor starting spikes. Electric motors draw 3 to 5 times their rated running power when starting up. If your factory runs 100kW of equipment together, you need at least a 200kW medium diesel generator.
- Micro Generators: Below 10kW. Good for small tools and basic lighting.
- Small Generators: 10kW – 200kW. Great for small job sites and farms.
- Medium Generators: 200kW – 600kW. Ideal for factories and commercial builds.
- Large Generators: 600kW – 2000kW. Built for mining and hospital backup power.
How to Match Your Generator to Your Work Environment?
Use a quiet soundproof canopy generator for night shifts, city plants, or suburban residential zones.
Open-frame machines create over 90 dB of noise. Silent canopy units use thick soundproof foam inside to drop noise levels below 70 dB. You can also customize your generator canopy color to match your company logo. Offshore and high-humidity areas need extra anti-corrosion coating.
Besides diesel models, manufacturers offer gasoline (1-12kW) and gas options. But for heavy construction, a diesel generator remains the most reliable option due to high torque and low maintenance costs.
💡 Pro Tip: Hot weather and high altitude reduce generator output power by 5% to 10%. Tell us your site temperature and altitude in advance.
Domestic vs. Imported Brands: Which Generator Should You Buy?
Choose an engine brand that offers local spare parts and service centers in your country.
We export a high volume of generator units to Russia, Southeast Asia, Ukraine, the UAE, and Africa. In Russia, Weichai engine models sell fast because local service centers stock affordable spare parts everywhere.
If you have a big budget, pick Cummins, Volvo, or Perkins units. If you want maximum return on investment, reliable Chinese engines like Weichai, Yuchai, and SDEC handle tough jobs easily. Delivery takes only 10 to 15 days for a diesel generator, while gas models take about 30 days.
💡 Pro Tip: Working in remote areas? Pick common engine brands so you can source filters and oil locally without waiting for air freight.
Real Case Study: How a UAE Contractor Cut Down-Time by 25%
Last year, a building contractor named Mr. Ahmed from the UAE reached out to us. His team worked near desert areas, and power grid drops kept halting his concrete mixing plant. Their old second-hand power unit kept overheating and shutting down in the heat.
We supplied him with a 300kW soundproof diesel generator powered by a Weichai engine. We upgraded the unit with an enlarged cooling radiator and heavy-duty dust filters for desert dust.
The result? His site ran smoothly without concrete supply delays. His maintenance expenses dropped by 20%, saving money on rental power and finishing the project 10 days ahead of schedule.
💡 Pro Tip: In dusty job sites, swap your air filter twice as often to double your engine lifespan.
Frequently Asked Questions About Buying a Generator
You only need to confirm three things: required output power, local voltage/frequency (like 380V/50Hz or 440V/60Hz), and silent enclosure requirements.
Change the engine oil and oil filter after the first 50 hours of operation. After that, perform simple maintenance every 250 to 300 operating hours.
Standard diesel generator models leave our factory in 10–15 days. Customized gas units take around 30 days to build.
Request Your Custom Generator Quote from YG Machinery
Stuck on power sizing? Talk directly with our technical team at YG Machinery today. Tell us your job application and target load, and we will send you a dependable, budget-friendly power solution within 12 hours!
