IRN125H-S2 INGERSOLL RAND Airend Motor Rotary Screw Air

Review INGERSOLL RAND Irn125h Airend And Motor Rotary Screw Air Compressor 125hp

The Ingersoll Rand IRN125H-S2/IRN125H 125HP Rotary Screw Air Compressor, model number 22202451, is a powerful and efficient solution for industrial compressed air needs. This compressor is part of Ingersoll Rand's reliable and high-performing IRN Series, which is known for delivering consistent and stable air output.

The IRN125H-S2/IRN125H compressor boasts a 125HP (93.2kW) motor, capable of delivering a maximum air flow of 334.3 CFM (947.8 m3/h) at 100 psi (6.9 bar) and a maximum pressure of 150 psi (10.3 bar). The rotary screw design ensures a smooth and constant air delivery, making it ideal for demanding applications that require consistent air pressure.

The compressor's air end is engineered for durability and longevity, featuring a cast iron construction and a large, efficient oil cooler. The IRN125H-S2/IRN125H also comes equipped with a robust, heavy-duty base frame that ensures stability and reduces vibration, contributing to a quieter operating environment.

Additionally, this compressor includes advanced features such as a variable speed drive (VSD) motor control, which not only optimizes energy consumption and reduces electrical costs but also provides soft-start capabilities and enhances system efficiency. The VSD also allows for precise pressure control, enabling you to maintain the optimal air pressure for your application.

The IRN125H-S2/IRN125H compressor's design prioritizes ease of maintenance, with features such as a large, easily accessible oil fill and sight glass, as well as an integrated air intake pre-filter, which helps to protect the air end from dust and debris. Furthermore, the compressor is equipped with a pressure switch and an unloader valve, ensuring safe and efficient operation.

In summary, the Ingersoll Rand IRN125H-S2/IRN125H 125HP Rotary Screw Air Compressor, model number 22202451, is a powerful, efficient, and reliable solution for industrial compressed air needs. Its robust design, advanced features, and ease of maintenance make it an excellent choice for applications that require consistent and stable air pressure, while its energy-saving technologies contribute to long-term cost savings.

The Ingersoll Rand IRN125H-S2 and IRN125H are 125 HP rotary screw air compressors with some similarities and differences. Here are the pros and cons of purchasing either model:

1. Energy Efficient: This model comes with the Energy Saver Package, which includes a variable frequency drive (VFD) that adjusts compressor motor speed based on air demand, reducing energy consumption.

2. Quiet Operation: The IRN125H-S2 has a sound level of 73 dBA at 100% load, making it one of the quieter 125 HP rotary screw compressors on the market.

3. Large Air Receiver: The compressor comes with a large 150-gallon receiver tank, allowing for longer run times between compressor cycles.

4. Heavy-Duty Design: The IRN125H-S2 has a cast iron frame and heavy-duty components, making it ideal for industrial or heavy-duty applications.

1. Higher Upfront Cost: Due to its energy-efficient features and heavy-duty design, the IRN125H-S2 has a higher upfront cost compared to other 125 HP rotary screw compressors.

2. Complex Installation: The VFD and other energy-saving features may require a more complex installation process compared to standard compressors.

1. Affordable Price: The IRN125H has a lower upfront cost compared to the IRN125H-S2, making it a more budget-friendly option for those with fewer demands for energy efficiency and noise reduction.

2. Compact Design: This model has a smaller footprint compared to the IRN125H-S2, making it a better option for those with limited space.

3. Easy Installation: The IRN125H does not require the complex installation process of the IRN125H-S2, making it a more straightforward option for those with less experience in compressor installation.

1. Higher Operating Cost: The IRN125H does not come with energy-saving features, resulting in higher operating costs over time due to increased energy consumption.

2. Louder Operation: This model has a higher sound level of 82 dBA at 100% load compared to the IRN125H-S2, making it less ideal for applications where noise reduction is a priority.

Both the Ingersoll Rand IRN125H-S2 and IRN125H have their unique strengths and weaknesses. The IRN125H-S2 is ideal for those who prioritize energy efficiency, quiet operation, and heavy-duty performance, despite its higher upfront cost and complex installation process. On the other hand, the IRN125H is a more budget-friendly option with a simpler installation process, but it comes at the cost of higher operating costs and louder operation. Ultimately, the choice between the two models depends on the specific needs and priorities of the buyer.

If energy efficiency, quiet operation, and heavy-duty performance are top priorities, we recommend the Ingersoll Rand IRN125H-S2. However, if a lower upfront cost and simpler installation process are more important, the Ingersoll Rand IRN125H may be the better choice. It's essential to carefully consider your needs and budget before making a decision.

Details:

Was in working condition when removed from service. Electric motor was replaced in 2018, no history on compressor. Unfortunately we did not get record of the hours before it was unhooked from power. This is an air compressor w/ motor assembly removed from Ingersoll Rand IRN125H-S2.

specifications compressorshow:

• brand: Ingersoll Rand
• mpn: Irn125h-s2
• part type: Motor Screw Compressor
• compressor type: Rotary Screw
• capacity: 125hp
• country of manufacture: United States
• power supply: Electric

shipping compressorshow:

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

general compressorshow:

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

offer compressorshow:

• in stock #: 1
• availability: in stock
• best offers: true
• started: march 31, 2026
• price: $4999.95
• item condition: Used
• options: ship-to-home
• sold #: 11

seller compressorshow:

• # reviews: 1385
• city: derby, kansas
• rating: 100.0%

payments compressorshow:

• credit card: diners-club
• wallet: google-pay
• other

returns compressorshow:

• method: money back
• paid by: buyer
• policy: returns accepted
• time: 30 days