No.1515 Fengnan East Road, Taizhou, China


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4 cylinder 4hp oil free silent air compressor

model DOF1100x2-50 DOF1500x2-50
tank L 50 50
Gal 12.5 12.5
volt V/Hz 230/50 230/50
power KW 1.1*2 1.5*2
HP 3 4
speed rpm 2800 2800
noise dB 74 74
displacement L/min 380 380
CFM 13.4 13.4
work pressure Bar 8 8
Psi 115 115
weight kg 43 45
LxWxH cm 73x33x67 73x33x67

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BISON’s quiet, oil-free air compressors are high quality, quick and easy to install, and suitable for most applications. Includes mobile service vehicles, construction equipment, agricultural machinery, residential uses, and more.

The BISON 4HP Portable Air Compressor is designed for home use. This model has a capacity of 115 PSI at 13.4 CFM. The BISON 4HP Air Compressor is an oil-free 4-cylinder model that delivers more than 3 times the power of comparable 2-cylinder models. The unit features a unique 3-piston design that provides maximum efficiency while maintaining extremely low noise levels.

Additionally, it features a cast iron cylinder with aluminum pistons for durability and long life. The pump is constructed of high-quality steel for strength and durability in all weather conditions. This pump runs on 230v which means it can go anywhere you need it! This pump uses no oil or lubricants, so you’ll never have to worry about replacing parts or servicing again!

BISON can provide the most cost-effective solution for your air compressor needs with our quality products. We also provide the following features:

  • Portable unit with wheels and handle for easy transport
  • Air filtration system prevents dust from entering the air supply system and prevents unnecessary wear and tear on moving parts
  • Adjustable regulator for quick changes in output pressure
  • Oil-free design means no maintenance and no oil leaks!
  • 4HP engine meets family use
  • 1/2″ NPT ports allow use with many different types of hoses and fittings
  • Extremely Quiet Operation – Meets OSHA requirements for workplace noise exposure limits!
  • Auto start/stop function (optional)
  • Low oil shutdown protection


detail 4 cylinder 3hp oil free silent air compressor

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Why Choose BISON

10,000+ capacity

Well established factory and workshop

8/24x7 Service

Our team is fast and responsive. Always here to help.


High quality standards with ISO CE.etc. certificates


Our prices are competitive and fair.

China air compressor manufacturer

Professional customization 4 cylinder 4hp oil free silent air compressor

BISON offers a full range of customized services, which we tailor for every customer. OEM everything on BISON 4 cylinder 4hp oil free silent air compressor including different power requirements, functional requirements, component configurations, etc.

In addition to customization, different shipping packages can be provided according to your requirements.

The best 4 cylinder 4hp oil free silent air compressor manufacturing company in the world, you can find it in some of the most demanding and critical installations. That’s why thousands of people and industries rely on the quality and reliability of BISON air compressors!

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