Product Overview

The Ingersoll Rand 2901170100 Compressor Lubricant is a 20-liter synthetic compressor oil identified with the XTEND DUTY lubricant product line. It is intended for oil-injected rotary screw compressors, where lubricant must maintain its protective properties under continuous circulation, elevated temperatures, and mechanical loading.

In an oil-injected screw compressor, lubricant is not simply used to reduce friction. It performs several functions throughout the compression process: cooling the rotors, sealing the internal clearances, lubricating bearings, and helping control the temperature of the compressed air. The oil also circulates through the separator and cooling system before returning to the airend.

The XTEND DUTY formulation is associated with extended operating intervals and protection against oxidation, deposits, and component wear. These characteristics are relevant to compressors operating for long production shifts, particularly where frequent lubricant replacement would increase maintenance downtime.

The 2901170100 is supplied in a 20-liter container, making it suitable for scheduled oil replenishment and maintenance activities. Its application includes oil-injected screw compressor systems in which the XTEND DUTY lubricant specification is approved.

During operation, compressor oil is exposed to heat, air, moisture, and mechanical stress. Over time, these conditions can accelerate oxidation and contribute to sludge or varnish formation. A suitable synthetic lubricant helps maintain oil circulation and protect internal components against these effects.

The lubricant is also relevant to maintenance planning because oil condition directly influences the service life of the airend, bearings, seals, and other oil-contacting components. The specified lubricant type should always match the compressor’s operating requirements rather than being selected solely according to container size or viscosity.

The 2901170100 product identification is associated with Atlas Copco Roto Synthetic Fluid XTEND DUTY. When selecting this product, the exact part number and lubricant specification should be checked to avoid confusion with other compressor oil formulations or different package sizes.

Technical Specifications

Product Features

• Synthetic Lubricant Formulation: Intended for oil-injected screw compressors operating under continuous mechanical and thermal loads.
• Oxidation Resistance: Helps slow lubricant degradation and acid formation during extended operation.
• Wear Protection: Supports lubrication of airend rotors, bearings, seals, and other moving components.
• Deposit Control: Helps limit sludge and varnish formation within the lubrication circuit.
• Extended Service Potential: Associated with an operating interval of up to 8,000 hours under suitable conditions.
• Water Separation: Supports separation of water from circulating lubricant.
• Low-Foaming Characteristics: Helps maintain consistent oil circulation and air/oil separation.
• 20-Liter Packaging: Suitable for planned lubricant replacement and maintenance stock management.

Working Principle

The 2901170100 functions as the working fluid in an oil-injected rotary screw compressor. Its role extends beyond lubrication because it participates directly in the compression, cooling, sealing, and heat-transfer processes.

When the compressor starts, the oil circulation system moves lubricant through the airend and associated components. Inside the compression chamber, oil is injected between the rotating screw elements.

The lubricant forms a protective film on moving surfaces, reducing direct metal-to-metal contact. At the same time, it fills small clearances between the rotors and housing, helping reduce internal air leakage during compression.

The operating process generally follows this sequence:

Oil Reservoir → Oil Pump / Circulation Circuit → Airend → Air/Oil Separator → Oil Cooler → Oil Filter → Airend

During compression, the lubricant absorbs heat generated by air compression and mechanical friction. The resulting air/oil mixture then enters the separator vessel, where most of the oil is recovered from the compressed air.

The separated lubricant passes through the cooling and filtration stages before returning to the airend. This circulation process continues throughout compressor operation.

For example, in a manufacturing plant running a screw compressor across multiple production shifts, the lubricant repeatedly passes through the airend and oil separation system. It must retain sufficient lubricating performance while resisting oxidation and deposit formation.

The XTEND DUTY formulation is intended to support this extended operating environment. Its oxidation resistance helps slow oil degradation, while its water-separation and low-foaming properties support the circulation and separation processes.

Oil condition still changes with operating temperature, moisture exposure, contamination, and compressor loading. Therefore, an extended service interval should not be interpreted as an unconditional replacement schedule. Oil analysis and the compressor’s maintenance requirements remain important when determining the actual change interval.

Role in the Compressor Lubrication System

The 2901170100 supplies the lubricant required by an oil-injected screw compressor. It circulates through the airend and supporting oil circuit, where it performs cooling, sealing, and lubrication functions.

A typical lubrication arrangement follows this sequence:

Oil Reservoir → Circulation Pump → Airend → Separator Tank → Oil Cooler → Oil Filter → Airend

The lubricant must remain compatible with the compressor’s internal sealing materials, filtration components, and operating temperature range. Mixing different oil formulations without confirming compatibility can lead to deposits, changes in oil properties, and problems with separation performance.

For this reason, switching from another lubricant to XTEND DUTY should follow an appropriate conversion procedure. The existing oil condition, residual lubricant, and compressor maintenance instructions should be considered before introducing a different formulation.

Industrial Applications

Installation and Maintenance

1. Verify the Lubricant Specification: Confirm that 2901170100 XTEND DUTY matches the lubricant requirements of the compressor before filling or replenishing the oil system.
2. Check the Compressor Model: Review the compressor identification and maintenance documentation to establish the approved lubricant type and required oil quantity.
3. Inspect the Existing Oil: Before replacement, examine the existing lubricant for discoloration, excessive contamination, unusual odor, or signs of water ingress.
4. Prepare the Compressor: Stop the compressor and isolate the electrical supply. Allow the machine to cool and follow the prescribed depressurization procedure.
5. Drain the Used Lubricant: If performing a complete oil change, drain the existing lubricant from the designated drain points while following the compressor’s service instructions.
6. Inspect the Oil Circuit: Check the reservoir, oil cooler, hoses, and connecting passages for accumulated deposits, leakage, or contamination.
7. Check the Oil Filter: Inspect the oil filter and replace it when required by the maintenance schedule. A fresh lubricant charge should not be circulated through an excessively contaminated filter.
8. Avoid Unverified Oil Mixing: Do not combine XTEND DUTY with another lubricant unless compatibility has been established. Follow the appropriate flushing or conversion procedure when changing oil formulations.
9. Fill with the Correct Quantity: Add the lubricant according to the compressor’s specified filling procedure. Do not assume that the 20-liter container represents the required capacity of the compressor.
10. Check the Oil Level: Verify the oil level using the designated sight glass or level indicator under the conditions specified in the compressor manual.
11. Check Circulation and Leakage: Restart the compressor following the prescribed commissioning procedure. Check the oil pressure, operating temperature, and surrounding connections for leakage or abnormal conditions.
12. Record Oil Maintenance Information: Document the lubricant part number, batch identification, filling date, operating hours, and planned inspection or oil analysis interval.

Compatible System Components

Recommended Related Models

Key Advantages

• Synthetic lubricant for oil-injected screw compressors.
• Supports airend rotor and bearing lubrication.
• Helps resist oxidation and oil degradation.
• Helps control deposit and sludge formation.
• Supports water separation and oil circulation.
• Low-foaming characteristics for compressor lubrication systems.
• Reference service interval of up to 8,000 operating hours under suitable conditions.
• 20-liter container for scheduled maintenance.

Technical FAQs

What type of compressor oil is Ingersoll Rand 2901170100?

Part number 2901170100 is identified with Atlas Copco Roto Synthetic Fluid XTEND DUTY. It is a synthetic compressor lubricant intended for oil-injected screw compressors. The exact lubricant specification should be checked against the compressor’s approved oil requirements before use.

What does XTEND DUTY mean in the 2901170100 lubricant designation?

XTEND DUTY identifies the lubricant product line and its extended-duty application. The formulation focuses on oxidation resistance, wear protection, and deposit control to support longer operating periods under suitable compressor conditions.

How long can the 2901170100 compressor lubricant be used?

The published reference interval for XTEND DUTY is up to 8,000 operating hours. This is not a universal guarantee for every compressor installation. Actual replacement timing depends on operating temperature, contamination, moisture exposure, compressor loading, and the applicable maintenance schedule.

Can the 2901170100 be mixed with other compressor oils?

Different synthetic and mineral-based compressor oils should not be mixed without confirming their chemical compatibility. Mixing incompatible formulations can affect lubricant properties and contribute to deposit formation or separation problems. When changing lubricant types, follow the compressor’s specified conversion and flushing procedure.