Founded in 1871 in the United States, Ingersoll Rand boasts over 140 years of experience in the research, design, and manufacture of high-performance air compressors. Ingersoll Rand's industrial solutions are developed based on in-depth knowledge and years of practical experience in compressed air technology. As a result, the brand successfully combines advanced technology with innovative design to maximize performance, productivity, and operational efficiency.
Ingersoll Rand's focus was on construction superior reliability for each compressor component, creating systems that lead the market in technology, quality, and performance compared to competitors.
In 2020, Gardner Denver and Ingersoll Rand officially merged., this has led to the formation of a world-leading global corporation in the field of air compressors, vacuum pumps, blowers, and industrial equipment, ushering in a new era of comprehensive compressed air solutions.

Gardner Denver – Ingersoll Rand group
Overview of Ingersoll Rand R Series 4–11 kW screw air compressors
In the small-capacity air compressor segment, many businesses still use traditional piston compressors, leading to major drawbacks in terms of noise, vibration, and continuous operation capability. Ingersoll Rand R Series 4–11 kW screw air compressors developed to effectively replace older solutions, providing a more stable, quiet, and energy-efficient compressed air supply.
This machine is designed for continuous operation in industrial environments, effectively meeting the compressed air needs of light to medium-duty production lines.
What are Ingersoll Rand R Series oil-lubricated screw air compressors?
The concept of oil-lubricated screw air compressors
Oil-lubricated screw air compressors use lubricating oil to:
- Seal the screw gap.
- Reduce friction and temperature during the compression process.
- Reduce friction and temperature during the compression process.
As a result, oil-lubricated screw compressors are far more suitable than piston compressors in applications requiring stable compressed air.
Positioning R Series 4–11 kW
Ingersoll Rand R Series 4–11 kW is positioned as:
- Small capacity screw air compressor
- Professional industrial design
- Suitable for operating for many hours each day.
- Easy to maintain, high reliability
The optimal solution for high performance and durable operation.
Ingersoll Rand oil-lubricated screw air compressors with a power range of 4–11 kW offer the perfect combination of Performance – Reliability – Energy Efficiency, effectively meeting the compressed air needs in industrial and commercial applications.
Outstanding operational performance
- The compressor airend has been proven over time, ensuring high stability.
- The sequential cooling system, along with the energy recovery system (ERS) option, optimizes overall performance.
- The intelligent cooling design helps reduce heat load and save energy.
- Technology V-Shield™ with its stainless steel PTFE oil piping system and O-ring seals, it ensures tight, leak-free operation.
Intelligent control – remote monitoring
- The display features high resolution and an intuitive, easy-to-use interface.
- Supports remote monitoring and control, sending incident alerts via email.
- Multilingual interface with support for up to 30 languages.
Reduce machine downtime.
- Technology PAC™ (Progressive Adaptive Control) continuously monitors operating parameters and automatically adjusts to prevent sudden machine shutdowns.
- The system automatically optimizes its operation based on real-world conditions, reducing maintenance costs.
Increase equipment lifespan
- High-efficiency two-stage filtration system, convenient maintenance process.
- Genuine Ingersoll Rand premium lubricants maintain long-lasting performance.
- The stainless steel piping system and high-quality elastic connections provide absolute leak protection.
Stable compressed air quality
- The integrated filter provides standard air quality ISO 1-4-2.
- The patented 3-in-1 heat exchanger enhances performance and reliability with low pressure drop.
Technical specifications for Ingersoll Rand R Series 4–11 kW air compressors

Technical specifications for Ingersoll Rand R Series 4–11 kW air compressors
| Model | CCN | Power | Capacity | Operating Pressure | Voltage | Receiver Tank | ||
|---|---|---|---|---|---|---|---|---|
| Base Mounted | KW | m3/min | ft3/min | bar(g) | psi(g) | V | ||
| R5IU – A7 | 19005396 | 5.5 | 0.83 | 29.3 | 7 | 102 | 400v/3ph/50hz | W/O |
| R5IU – A8 | 19005404 | 5.5 | 0.78 | 27.5 | 8 | 116 | 400v/3ph/50hz | W/O |
| R5IU – A10 | 19005412 | 5.5 | 0.7 | 24.7 | 10 | 145 | 400v/3ph/50hz | W/O |
| R7IU – A7 | 19005362 | 7.5 | 1.1 | 38.8 | 7 | 102 | 400v/3ph/50hz | W/O |
| R7IU – A8 | 19005370 | 7.5 | 1.03 | 36.3 | 8 | 116 | 400v/3ph/50hz | W/O |
| R7IU – A10 | 19005388 | 7.5 | 0.91 | 32.1 | 10 | 145 | 400v/3ph/50hz | W/O |
| R11IU – A7 | 19005339 | 11 | 1.63 | 57.5 | 7 | 102 | 400v/3ph/50hz | W/O |
| R11IU – A8 | 19005347 | 11 | 1.52 | 53.6 | 8 | 116 | 400v/3ph/50hz | W/O |
| R11IU – A10 | 19005354 | 11 | 1.35 | 47.6 | 10 | 145 | 400v/3ph/50hz | W/O |

Technical specifications for Ingersoll Rand R Series 4–11 kW air compressors
| 272L ASME Mounted | ||||||||
|---|---|---|---|---|---|---|---|---|
| R5IU – A7 – X272H | 19012889 | 5.5 | 0.83 | 29.3 | 7 | 102 | 400v/3ph/50hz | 272L |
| R5IU – A8 – X272H | 19012897 | 5.5 | 0.78 | 27.5 | 8 | 116 | 400v/3ph/50hz | 272L |
| R5IU – A10 – X272H | 19012905 | 5.5 | 0.7 | 24.7 | 10 | 145 | 400v/3ph/50hz | 272L |
| R7IU – A7 – X272H | 19012855 | 7.5 | 1.1 | 38.8 | 7 | 102 | 400v/3ph/50hz | 272L |
| R7IU – A8 – X272H | 19012863 | 7.5 | 1.03 | 36.3 | 8 | 116 | 400v/3ph/50hz | 272L |
| R7IU – A10 – X272H | 19012871 | 7.5 | 0.91 | 32.1 | 10 | 145 | 400v/3ph/50hz | 272L |
| R11IU – A7 – X272H | 19012822 | 11 | 1.63 | 57.5 | 7 | 102 | 400v/3ph/50hz | 272L |
| R11IU – A8 – X272H | 19012830 | 11 | 1.52 | 53.6 | 8 | 116 | 400v/3ph/50hz | 272L |
| R11IU – A10 – X272H | 19012848 | 11 | 1.35 | 47.6 | 10 | 145 | 400v/3ph/50hz | 272L |

Technical specifications for Ingersoll Rand R Series 4–11 kW air compressors
| 272L GB Mounted | ||||||||
|---|---|---|---|---|---|---|---|---|
| R5IU – A8 – X272H | 19015577 | 5.5 | 0.78 | 27.5 | 8 | 116 | 400v/3ph/50hz | 272L |
| R5IU – A10 – X272H | 19015585 | 5.5 | 0.7 | 24.7 | 10 | 145 | 400v/3ph/50hz | 272L |
| R7IU – A8 – X272H | 19015593 | 7.5 | 1.03 | 36.3 | 8 | 116 | 400v/3ph/50hz | 272L |
| R7IU – A10 – X272H | 19015601 | 7.5 | 0.91 | 32.1 | 10 | 145 | 400v/3ph/50hz | 272L |
| R11IU – A8 – X272H | 19015619 | 11 | 1.52 | 53.6 | 8 | 116 | 400v/3ph/50hz | 272L |
| R11IU – A10 – X272H | 19015627 | 11 | 1.35 | 47.6 | 10 | 145 | 400v/3ph/50hz | 272L |
| 500L GB Mounted | ||||||||
|---|---|---|---|---|---|---|---|---|
| R5IU – A8 – X500H | 19012764 | 5.5 | 0.78 | 27.5 | 8 | 116 | 400v/3ph/50hz | 500L |
| R5IU – A10 – X500H | 19012772 | 5.5 | 0.7 | 24.7 | 10 | 145 | 400v/3ph/50hz | 500L |
| R7IU – A8 – X500H | 19012780 | 7.5 | 1.03 | 36.3 | 8 | 116 | 400v/3ph/50hz | 500L |
| R7IU – A10 – X500H | 19012798 | 7.5 | 0.91 | 32.1 | 10 | 145 | 400v/3ph/50hz | 500L |
| R11IU – A8 – X500H | 19012806 | 11 | 1.52 | 53.6 | 8 | 116 | 400v/3ph/50hz | 500L |
| R11IU – A10 – X500H | 19012814 | 11 | 1.35 | 47.6 | 10 | 145 | 400v/3ph/50hz | 500L |
Key advantages of Ingersoll Rand R Series 4–11 kW air compressors
Smooth operation – low noise level
Compared to piston machines, R Series screw machines operate more quietly, making them suitable for factory environments.
High stability
The machine provides a continuous supply of compressed air, minimizing pressure fluctuations and protecting equipment that uses compressed air.
Energy saving
Optimized design helps reduce power consumption per cubic meter of compressed air produced.Optimized design helps reduce power consumption per cubic meter of compressed air produced.
Easy to maintain
The scientifically designed machine structure allows for quick inspection and routine maintenance, reducing downtime.
Practical applications of Ingersoll Rand R Series air compressors
- Mechanical workshop
- Small and medium-sized manufacturing plants
- Packaging and printing industry
- Wood processing
- Assembly line
In fact, many engineers assess R Series 4–11 kW is a reasonable alternative to piston engines due to its stability and lower operating costs.
Guide to choosing the right Ingersoll Rand R Series air compressor.
When selecting Ingersoll Rand R Series 4–11 kW oil-lubricated screw air compressors, needs to be considered:
- Total compressed air consumption
- Required pressure
- Number of operating hours per day
- Future scalability capability
Choosing the right power capacity helps the system operate stably and optimizes investment costs.
Installation and operation guide for Ingersoll Rand R Series air compressors.
Installation
- The machine room is well-ventilated.
- The power system is stable.
- The gas pipelines are installed correctly.
Operate
- Monitor the parameters on the controller.
- Check the oil and filter regularly.
- as recommended by the manufacturer.
Frequently Asked Questions (FAQ)
Can Ingersoll Rand R Series 4–11 kW air compressors run continuously?
Yes. The machine is designed for continuous operation in industrial environments.
What are the advantages of the R Series compared to piston engines?
The R Series operates more quietly, is more stable, and is suitable for use for many hours each day.
Are the investment costs high?
The initial investment cost is higher than that of piston engines, but this is offset by greater durability and lower operating costs.
Why should you buy Ingersoll Rand R Series air compressors at Phuc Hung?
carried out maintenance and oil sludge (varnish) removal for we are a provider of industrial compressed air solutions with:
- Genuine product
- In-depth technical consulting
- Survey of the actual system
- Installation and maintenance support
- Transparent warranty policy
Contact carried out maintenance and oil sludge (varnish) removal for for detailed advice Ingersoll Rand R Series 4–11 kW oil-lubricated screw air compressors, we will conduct on-site surveys and propose the most suitable compressed air solutions for your workshop and factory.



