Your location:Home   Products   Diesel Series   Generator Set    Super silent generator set    Ultra-quiet generator set KDF6700QQ(-3)
Shopping Cart
Delete all items
Proceed to send inquiry
Ultra-quiet generator set KDF6700QQ(-3)



Frequency (Hz)


Voltage (V)

230 400

Rated power (kVA)

4.2 5.3

Power limit (kVA)

4.5 5.6

Number of phases

Single phase/three phase

Excitation method

Brush self-excitation

Power factor (φ)

1.0 0.8

Insulation class


Fuel tank capacity (L)


Noise level at 7 meters (dB)


Power model


Startup method

Electric start

Power Type

Single cylinder four stroke air-cooled vertical

Cylinder diameter*stroke (mm)


Displacement (L)


Compression ratio

19.5 : 1

Speed ​​(rpm)


Engine power (kW)


Oil capacity (L)


Fuel brand

Diesel: 0# (summer), -10# (winter)

Engine oil brand

SAE10W30 (CD grade and above)

Low oil pressure alarm



ATS/Remote Control

Dimensions (mm)


Net weight (kg)


The Science Popularization R&D team never stops, they keep working hard and innovating to meet your increasingly personalized needs.

The new ultra-quiet unit takes quietness as the primary R&D and design goal, emphasizes the pleasure and comfort that the product brings to customers, and meets the needs of high-end users in the market. The noise control reaches the advanced level at home and abroad, subverting the traditional image of low-noise diesel engines.

product features

Ultra-low noise

The noise control has reached the advanced level at home and abroad, subverting the traditional image of low-noise units and bringing you super pleasant and comfortable feeling.

Unique appearance

Brand-new product structure design, KOOP brand unique appearance, red and black combination, highlighting quality and taste.

U-shaped air duct

A new corridor-style air duct design is adopted, and all air intake and exhaust pass through a "U"-shaped maze to achieve a sound insulation effect.

Super strong structure

The entire shell and chassis are made of thick steel plates to enhance the structural strength of the machine. The product is sturdy and durable, and also achieves the effect of sound insulation and vibration reduction.

Stable output

All-copper motor, F-class insulation, high conversion efficiency; intelligent voltage regulation AVR, stable voltage, small voltage waveform distortion.

Inquiry Now
Name: *
E-mail: *
Message: *
Verification code: *
Other products
Koop Power Machinery Co., Ltd. is a company specializing in the research and development and manufacturing of small power engines and emergency electricity supply systems. The core team is composed of senior technical experts and management elites in the industry, with leading design capabilities and rich engineering practice in the fields of internal combustion engines and power electronics technology. Through unremitting efforts, Kepu has developed into a leading professional supplier of small power engines and mobile power supply industries in China.
bottom img 1
Wechat QR code