For manufacturing plants requiring a stable and continuous compressed air supply with reasonable investment costs., oil-lubricated screw air compressors remain a popular and efficient choice. Ingersoll Rand RM Series 30–315 kW Oil-lubricated Screw Air Compressors designed for reliable 24/7 operation, high performance, energy efficiency, and suitability for most industrial applications from mechanical engineering and fabrication to large-scale manufacturing.

Introducing Ingersoll Rand – Over 140 years of leadership in the compressed air industry.

Gardner Denver – Ingersoll Rand group founded in 1871 in the United States, with over 140 years of experience in the field of air compressors and industrial equipment. This brand is globally renowned for design and manufacture of high-performance air compressors, providing optimal compressed air solutions for a diverse range of industries.

Ingersoll Rand's systems are developed based on in-depth technical expertise and years of practical experience, cho phép kết hợp advanced technology with innovative design, in order to maximize operational performance, durability, and energy efficiency..

Ingersoll Rand's core philosophy is build reliability for each compressor component, creating systems that consistently lead the market in technology, quality, and performance.

2020 Ingersoll Rand và Gardner Denver officially merged, formed the world's largest corporation in the field air compressors, vacuum pumps, blowers, and industrial equipment, ushering in a new era of comprehensive compressed air solutions for the global industrial sector.

Overview of Ingersoll Rand RM Series Oil-Lubricated Screw Air Compressors

Gardner Denver – Ingersoll Rand group is a global industrial corporation with over 150 years of experience in the field compressed air, energy, and industrial equipment. The Nano central oxygen RM Series is one of the screw air compressor models has oil Ingersoll Rand's flagship product, developed to deliver the optimal balance between performance – durability – investment cost.

With a wide power range from 30 to 315 kW, RM Series offers flexibility:

• Medium-sized factory
• Central compressed air system
• Heavy industrial production line
• The application requires a continuous, stable supply of compressed air.

Screw air compressors Gardner Denver – Ingersoll Rand group is a solution that helps businesses enhance competitiveness in the operation of compressed air systems. With advanced compressed air technology, the equipment provides stable performance, increase production efficiency, to reduce electricity costs. with extend system lifespan, thereby optimizing the total cost of ownership in the long term.

The single-stage Ingersoll Rand RM Series new generation oil-immersed screw air compressors Developed with numerous outstanding design improvements. Notably, Industry-leading high-performance compressor head assembly, helps to create high compressed air flowstable and durable operation with durable - reliable, meeting the stringent requirements of modern industrial plants.

RM series technical data sheet

37-75kW Performance
Model	Max. Pressure	Nominal Power	Capacity	Dimensions (mm)	Weight
	barg - 50HZ	kW	m³/min	(L x W x H)	kg
Standard RM fixed drive
RM55i_A7.5	7.5	55	10.3	1832 x 1249 x 1512	1233
RM55i_A8.5	8.5	55	9.8	1832 x 1249 x 1512	1233
RM55i_A10	10	55	8.4	1832 x 1249 x 1512	1233
RM55i_A12.5	12.5	55	7.5	1832 x 1249 x 1512	1233
RM75i_A7.5	7.5	75	12.8	1832 x 1249 x 1512	1302
RM75i_A8.5	8.5	75	12.4	1832 x 1249 x 1512	1302
RM75i_A10	10	75	11.3	1832 x 1249 x 1512	1302
RM75i_A12.5	12.5	75	10.2	1832 x 1249 x 1512	1302
RM75ie_A7.5	7.5	75	14	1832 x 1249 x 1512	1623
RM75ie_A8.5	8.5	75	13.5	1832 x 1249 x 1512	1623
RM75ie_A10	10	75	12.5	1832 x 1249 x 1512	1623
RM75ie_A12.5	12.5	75	10.5	1832 x 1249 x 1512	1623
Standard RM fixed drive
RM37n_A	10	37	7	1544 x 884 x 1376	692
RM45n_A	10	45	8.5	1544 x 884 x 1376	692
RM37n_A TAS	10	37	7	2200 x 884 x 1424	894
RM45n_A TAS	10	45	8.5	2558 x 884 x 1424	905
RM55n_A	10	55	10.2	1832 x 1249 x 1512	978
RM75ne_A	10	75	15.4	1832 x 1249 x 1512	1291

90-160kW Performance
Model	Max. Pressure	Nominal Power	Capacity	Dimensions (mm)	Weight (air/water-cooled)
	barg - 50HZ	kW	m³/min	(L x W x H)	kg
Standard RM fixed drive
RM90i_A7.5/W7.5	7.5	90	16.5	2455 x 1586 x 1670	2262 / 2266
RM90i_A8.5/W8.5	8.5	90	16.4	2455 x 1586 x 1670	2262 / 2266
RM90i_A10/W10	10	90	15.1	2455 x 1586 x 1670	2262 / 2266
RM110i_A7.5/W7.5	7.5	110	20.8	2455 x 1586 x 1670	2590 / 2602
RM110i_A8.5/W8.5	8.5	110	20	2455 x 1586 x 1670	2590 / 2602
RM110i_A10/W10	10	110	18	2455 x 1586 x 1670	2590 / 2602
RM132i_A7.5/W7.5	7.5	132	25.5	2520 x 1598 x 1740	3159 / 3122
RM132i_A8.5/W8.5	8.5	132	24.8	2520 x 1598 x 1740	3159 / 3122
RM132i_A10/W10	10	132	22	2520 x 1598 x 1740	3159 / 3122
RM160i_A7.5/W7.5	7.5	160	30.6	2520 x 1598 x 1740	3234 / 3241
RM160i_A8.5/W8.5	8.5	160	30	2520 x 1598 x 1740	3234 / 3241
RM160i_A10/W10	10	160	26.4	2520 x 1598 x 1740	3234 / 3241
Standard RM variable drive
RM90n_A/W	10	90	18	2455 x 1586 x 1670	1751 / 1755
RM110n_A/W	10	110	21.8	2455 x 1586 x 1670	1802 / 1814
RM132n_A/W	10	132	25.2	2520 x 1598 x 1740	2104 / 2067
RM160n_A/W	10	160	31.4	2520 x 1598 x 1740	2333 / 2340

RM Standard Models Engineering Data
Model	Max Pressure	Rated Power	Capacity (FAD)	Length x Width x Height	Net Weight
	barg - 50HZ	kW	m³/min- 50Hz	mm	kg
RM185i_A7	7.5	185	37	4076 X 1930 X 2102	4805
RM185i_A8	8.5	185	35.7	4076 X 1930 X 2102	4805
RM185i_A10	10	185	32.4	4076 X 1930 X 2102	4805
RM185i_W7	7.5	185	37	4076 X 1930 X 2102	4725
RM185i_W8	8.5	185	35.7	4076 X 1930 X 2102	4725
RM185i_W10	10	185	32.4	4076 X 1930 X 2102	4725
RM220i_A7.5	7.5	225	45.6	4000 X 1930 X 2146	5584
RM220i_A8.5	8.5	225	43.2	4000 X 1930 X 2146	5584
RM220i_A10	10	225	38.8	4000 X 1930 X 2146	5584
RM220i_W7.5	7.5	225	45.6	3517 X 1930 X 2147	5153
RM220i_W8.5	8.5	225	43.2	3517 X 1930 X 2147	5153
RM220i_W10	10	225	38.8	3517 X 1930 X 2147	5153
RM275i_W7.5	7.5	275	56.5	3140 X 2150 X 2005	5020
RM275i_W8.5	8.5	275	53	3140 X 2150 X 2005	5020
RM275i_W10	10	275	48	3140 X 2150 X 2005	5020
RM315i_W7.5	7.5	315	64	3140 X 2150 X 2005	5580
RM315i_W8.5	8.5	315	60.8	3140 X 2150 X 2005	5580
RM315i_W10	10	315	53	3140 X 2150 X 2005	5580
RM185n_A	7-10	185	37	4076 X 1930 X 2102	4998
RM185n_W	7-10	185	37	4076 X 1930 X 2102	4900
RM220n_A	7-10	225	46	4000 X 1930 X 2146	6255
RM220n_W	7-10	225	46	3517 X 1930 X 2147	5824
RM275n_W	7-10	275	56.5	3140 X 2150 X 2005	5520
RM315n_W	7-10	315	64	3140 X 2150 X 2005	6110

Operating principle of oil-lubricated screw air compressors

Oil-lubricated screw air compressors operate on the following principle: Positive Displacement with two screws rotating in opposite directions.

The role of oil in the compressor chamber:

• Lubrication screw surface
• Seal gap, increased compression efficiency
• Cooling during the compression process
• Reduce friction and wear.

As a result, the Ingersoll Rand RM Series oil-lubricated screw air compressor achieves high performance, superior durability, and stable operation over a long period.

RM Series high-performance screw technology

Ingersoll Rand RM Series uses the screw assembly is machined with high precision, optimally designed for:

• Stable compression performance
• Reduce energy losses
• Reduces vibration and noise.
• Extending the lifespan of the compressor head.

Screw assembly combined with efficient oil separation system, this ensures that the amount of oil mixed in the compressed air remains low, suitable for most industrial applications.

Modern compressor head assembly – The heart of RM Series performance

The compressor head assembly is likened to the "heart" of the air compressorWith this line Ingersoll Rand RM Series new generation air compressors, the company has developed completely new compressor head assembly, delivering superior performance and high reliability in industrial operations.

The rotor design is geometric optimization, help increase performance by up to 16% compared to the previous generation, and at the same time reduce operating costs significantly. The new rotor structure also allows increase compressed air flow by 14%, meeting the demand for stable gas supply for continuous production lines.

Luminance Control Panel – Intelligent Monitoring, Energy Optimization

Each air compressor RM Series equipped 7.6-inch high-resolution Luminance touchscreen, allow:

• Monitor all operating parameters in real time.
• Adjust the system quickly and accurately.
• Optimize uptime
• Efficient energy saving

In particular, the system also supports remote access and management, this helps operators make timely decisions—no matter where they are.

Key advantages of the Luminance interface:

• Intuitive and easy-to-use interface.
• Advanced control algorithm
• Effective system management
• Stable operating performance
• Easy to upgrade in the future.
• Powerful processor, fast response.

High-efficiency motor – Saves up to 30% on electricity.

Screw air compressors Ingersoll Rand RM Series use high-performance drive motors, perfectly combined with the next-generation compressor head assembly.

• Fixed-speed version: engine meets standards. IE3 / IE4
• Inverter version: motor ECO–PM IE5 ultra energy efficient

Thanks to that, the system helps reduce electricity costs by 12–30%., while also ensuring durable and stable operation in demanding industrial environments.

Key advantages of Ingersoll Rand RM Series oil-lubricated screw air compressors

• High performance, stable operation.
• Suitable for continuous operation 24/7
• Reasonable investment costs
• Durable, long lifespan
• Easy to maintain, spare parts readily available.
• Ingersoll Rand is a globally reputable brand.

Practical applications

Ingersoll Rand RM Series oil-lubricated screw air compressors are widely used in:

• Mechanical Engineering – Machine Manufacturing
• Steel, cement, and building materials industries
• Packaging and plastics production
• Heavy industrial production line
• Central compressed air system for the factory

According to the operating engineer's assessment, the RM Series shows that high stability, few malfunctions, and reasonable maintenance costs., particularly suitable for plants that operate continuously.