N251-G KAESER Booster Air Compressor

Review KAESER Booster Air Compressor 5.5 Hp

The Kaeser N251-G Booster Air Compressor is a powerful and efficient solution for your compressed air needs. This 5.5 HP (4 kW) compressor is designed to deliver high-pressure air for industrial applications, making it an essential tool for various industries, including manufacturing, construction, and automotive repair.

The N251-G compressor comes with a number of features that ensure reliable and consistent performance. Its oil-lubricated, single-stage, 2-cylinder engine is built for durability and can handle heavy workloads. The compressor is also equipped with a cast iron crankcase and cylinders, which provide excellent heat dissipation and protect against wear and tear.

One of the standout features of the Kaeser N251-G Booster Air Compressor is its ability to deliver air pressure up to 232 psi (16 bar). This makes it ideal for running pneumatic tools that require high-pressure air, such as impact wrenches, air hammers, and sandblasters. The compressor also comes with a large 50-gallon (189 liters) air tank, which provides ample air storage for extended periods of use.

The N251-G compressor is also equipped with Kaeser's renowned Sigma Control System, which ensures easy and intuitive operation. The control panel features a clear LCD display that shows vital system information, such as pressure, temperature, and run time. The compressor also comes with pre-set pressure settings for various applications, making it simple to switch between different tools and tasks.

The Kaeser N251-G Booster Air Compressor is designed with energy efficiency in mind. It comes with an automatic pressure control system that maintains the desired air pressure in the tank, reducing the need for unnecessary compressor run time. The compressor also features an energy-saving motor that consumes less power during idle periods.

The N251-G compressor is built to last, with a robust design that can withstand the rigors of industrial use. It comes with a heavy-duty frame that provides excellent stability and protection against vibration. The compressor also features easy-to-access service points, making routine maintenance simple and straightforward.

In summary, the Kaeser N251-G Booster Air Compressor is a powerful and efficient solution for your high-pressure air needs. Its durable design, reliable performance, and energy-saving features make it an ideal choice for industrial applications. With its large air tank and intuitive control system, this compressor is sure to meet the demands of even the most demanding work environments.

Kaeser N251-G Booster Air Compressor: A Detailed Analysis

The Kaeser N251-G Booster Air Compressor is a popular choice in the industrial market due to its robust design, energy efficiency, and high-performance capabilities. In this analysis, we will discuss the key features, advantages, and potential drawbacks of this compressor to help you make an informed purchasing decision.

a. Oil-lubricated, rotary screw compressor

b. 5.5 HP (4 kW) motor

c. Maximum pressure: 175 psi (12.1 bar)

d. Maximum flow rate: 251 CFM (7.11 m /min) at 100 psi (6.9 bar)

e. Dry-running capability

f. Advanced CAOS (Controlled Air Over Oil System)

g. Integrated aftercooler and air-cooled motor

a. High efficiency: The oil-lubricated, rotary screw technology ensures high energy efficiency and stable, consistent air pressure.

b. Dry-running capability: The compressor can run dry for up to 20 minutes without causing any damage to the motor or compressor elements.

c. Low noise level: The air-cooled motor and integrated sound insulation reduce noise levels, making it suitable for use in various industrial settings.

d. Easy maintenance: The large, easily accessible service points and the quick-change air filter make routine maintenance simple.

a. Size and weight: The N251-G is a large and heavy compressor, requiring ample space for installation and transportation.

b. Cost: The compressor's high-performance capabilities and advanced features come with a higher price tag than some competitors.

The Kaeser N251-G Booster Air Compressor offers numerous advantages, including high efficiency, dry-running capability, easy maintenance, and low noise level. However, it also comes with some disadvantages, such as its size, weight, and higher cost compared to some competitors. When considering purchasing this compressor, it is essential to weigh the advantages and disadvantages against your specific requirements, available space, and budget.

If you need a high-performance compressor that offers excellent energy efficiency, dry-running capability, and easy maintenance, the Kaeser N251-G could be an excellent choice. However, if you have limited space or a smaller budget, there might be other compressor models that better suit your needs.

Based on the analysis, if you require a high-performance, industrial-grade air compressor with excellent energy efficiency, dry-running capability, and easy maintenance, the Kaeser N251-G Booster Air Compressor is a strong recommendation. However, it is crucial to consider the compressor's size, weight, and cost before making a final decision.

Details:

Kaeser monitor control box included, 1996, service hrs 4611, 3 pH 460v, booster technology: not a standalone compressor; it requires primary air source. These units are designed to take already compressed air the Kaeser booster air compressor 5.5 hp is a stationary electric reciprocating compressor with horizontal orientation. From a standard 100-125 pig plant system and boost it to much higher pressures up 650 pig for specialized applications like pet bottle blowing, valve testing, or manufacturing processes.

Cooling: equipped with a high-efficiency fan-assisted after cooler to manage high temperatures. Design: 2-cylinder, air-cooled, single-stage or two-stage depending on specific configuration reciprocating block.

specifications compressorshow:

• brand: Kaeser
• mpn: N251-g
• part type: Hp Compressor
• compressor type: Reciprocating
• features: Stationary
• orientation: Horizontal
• power supply: Electric

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• credit card: diners-club
• other
• wallet: paypal

seller compressorshow:

• city: west palm beach, florida
• # reviews: 269
• rating: 100.0%

general compressorshow:

• category: Business & Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Blowers > Air Compressors

returns compressorshow:

• policy: no returns

offer compressorshow:

• options: ship-to-home
• price: $7500.00
• item condition: Used
• availability: in stock
• started: february 9, 2026
• sold #: 8
• best offers: true
• in stock #: 1

shipping compressorshow:

• class: freight
• service: flat rate freight
• type: fixed