Jiangsu, China
Business Type:
Manufacturer/Factory & Trading Company
Year of Establishment:
Plant Area:
7500 square meters
Management System Certification:
ISO9001:2008, ISO14001:2004, OHSAS18001:2007
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Service

Diesel Generating Set, Diesel Generator Set, Generator Set manufacturer / supplier in China, offering Best-Selling and Widely Used Weichai 40kw/50kVA Diesel Generating Set, Volvo 500kw/625kVA Electric Diesel Generator with Marathon Alternator, Cummins Engine 150kw/187.5kVA Super Silent Diesel Generator and so on.

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Supplier Homepage Products Others Best-Selling and Widely Used Weichai 40kw/50kVA Diesel Generating Set

Best-Selling and Widely Used Weichai 40kw/50kVA Diesel Generating Set

Get Latest Price
Purchase Qty. / Reference FOB Price
1-99 Pieces US $10,000
100+ Pieces US $20,000
Port: Shanghai, China
Production Capacity: 10000PCS/Year
Payment Terms: L/C, T/T, Paypal
Type: Basic Diesel Generator
Installation Method: Portable
Stroke: Four Stroke
Cooling Method: Water Cooling
Output Type: AC Three Phase
Speed: Speed

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Basic Info

Model NO.: QSWF-40GF
Conditions of Use: Land Use
Usage: Standby Unit
Landuse Type of Unit: Automation Type
Excitation Mode: AC Rotating Exciter
Frequency: 50Hz
Rated Voltage: 230/400V
Rated Rpm: 1500/1800
Power: 40kw/50kVA
Cylinder No.: 4
Displacement: 4.33L
Lubricating Capacity: 15L
Fuel Consumption: 231L
Size: 1800*750*1300mm
Weight: 800kg
Trademark: YANGKE
Transport Package: Wooden Case
Specification: CE, RoHS, SGS, GMP
Origin: Yangzhou, Jiangsu
HS Code: 85021100

Product Description

1.WEICHAI diesel engine
2.4/6 cylinder in-line, 4-stroke, liquid cooled
3. Naturally aspirated, turbocharged, or turbocharged with air intercooler
4. Electronic governing
5. Fuel injection pump
6. Electric motor starting system
7. Forged steel crankshaft, cast iron cylinder and replaceable wet type cylinder liner
8. Low discharge, and low fuel consumption
9. Installed conveniently and maintain easily
10. Radiator 40°C max, fans are driven by belt, with safety guard 
11. Anti Vibration Suspension Absorber
12. Dry type air filter, fuel filter, oil filter
13.8-hour operation base tank
14.24V DC start motor and storage battery
15.24V charge alternator
16.24V batteries, rack and cable
17. Ripple flex exhaust pipe, exhaust siphon, flange, and muffler
18. Comply with ISO and CE standards. 
19. Mould case circuit breaker
Alternator Feature
1. Copy stamford(or original stamford, leroysomer, marathon etc. )
2. Brushless, 4 poles, rotation magnet
3. IP21-23(NEMA1) enclose is standard for all industrial alternators
4. H class insulation system
5. AVR self-regulated, voltage regulation rate: ≤±1%
6. Simple installation and maintenance with easy access to terminals, rotating diodes and coupling bolts
7. Wide range of flange adaptors and single bearing disc coupling
8. Radio interference restraining accords with the stipulation of VDE0875-N and ISO8528
9. Moisture proof, sand-proof, dustproof, salt-proof and vibration-proof
10. Dynamically balanced rotor to BS 5625 grade 12.5
11. High-quality lubrication sealed for long-life bearing
12. Independent over-load protection
13. Unique sensors protection, adapt to all sensors
 Control system: 
1. Start or Stop Generator set manually / automatically
2. Open controller output can be defined as Pre-heat/Idle output
3. High Coolant temperature protection
4. Low Oil pressure protection
5. Over load protection
6. Generator over/under frequency protection
7. Generator over/under/unbalance voltage Protection
8. Over speed protection 
Soundproof Canopy Feature
1. Excellent ventilation
2. Oil tank mounted on base frame for at least 8 Hours working
3. Highly Corrosion Resistant construction
4. Excellent Access for Maintenance
5. Security and Safety
6. 1m<80DBA / 7m<70DBA
7. With steel sheet
8. Stainless steel locks
9. Control panel viewing window for monitoring the status of the generator set
10. Good ventilation system and anti-heat radiation construction
11. Effective anti-vibration devices to ensure the generator set run steadily
12. Super silent materials inside to ensure the noise lower than 70 dB 7 meters away
13. Emergency stop button mounted outside
14. Side lockable door easy for maintenance and installation
15. Lube oil and cooling water drains piped to exterior of the canopy




Rated voltage(V)


Rated speed(rpm)


Rated frequency(Hz)


Power factor


Ambient temperature(°C)




Connection type

3 phase 4 wires





No. of cylinders & configuration

In-Line 4 cylinders

Method of operation


Speed regulation

Mechanically governor

Starting system

DC 12V Electronic start

Cooling method

Closed-circuit cooling system

Total displacement(L)




100% Load fuel consumption(L/h)




Number of Phase


Connection Type

3Phase and 4Wires

Number of Bearing


Power Factor


Protection Grade




Winding/ Pitch

100% Copper   2/3 Pitch

Cooling Fan

Cast alloy aluminum

Exciter Type

Brushless, Self-Exciting

Insulation Class, Temperature Rise


Telephone Influence Factor( TIF)

TIF <50 / THF<2%

Total Harmonic TGH/THC

<1.5% at no load / <5% at load

Voltage Regulation, Steady State


Sustained Short-Circuit Current

300%(3 in):10s



Packaging & Delivery    
Packaging Detail:generator standard exporting package
Delivery Detail:within 5-25working days after the deposit
 Best-Selling and Widely Used Weichai 40kw/50kVA Diesel Generating Set

Best-Selling and Widely Used Weichai 40kw/50kVA Diesel Generating Set
Company Information
Yangke Machinery Electric is a high-tech generator manufacturer which contains R&D, production and marketing together.

Our company not only establishes humanized modern enterprise with perfect quality management system and certification authority, but also equipped with international advanced facilities of R&D, manufacture and test. The concept of our company is to develop the best product, to provide the best service. We will spare no effect to serve our customer with products of high quality and after-sales service in a variety of ways.

With the help of the technical strength, our company has formed a structure of product series. The current main products are: QS series 8-3000KVA brushless alternators, which can be coupled with both domestic and foreign brands of diesel engines.

We only offer products using major engine brands such as Cummins, Perkins, Doosan, MTU Diesel/Mitsubishi etc. At YANGKE, we also customize the standard models to meet your unique requirements. Our Generators are also top of the line and come with base mounted fuel tanks, battery, battery rack and cables, vibration isolators between engine/diesel generator and base frame, a circuit breaker to protect the generator from overload and a two-wire auto start ready controls for automatic transfer switch operation. (Note: Automatic Transfer Switch Required for True Auto Operation).
Our products are sold to Southeast Asia, central Asia, the Middle East, Africa and South America.

 Sales promises:
YANGKE power provides a full line of brand new and high quality products. Each and every unit is strictly factory tested.
Warranty is according to our standard conditions :
a. 15months,counted on the day YANGKE sold to the first buyer;
b. one year after installation;
c.1000running hours(accumulated),subject to the earlier one.
Service and parts are available from YANGKE POWER or distributors in your location.

Yangzhou YANGKE Machinery Electric Co.,Ltd
Contact person:Tina


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