Ingersoll-Rand Stationary Air Compressor Buying Guide
Ingersoll Rand guide: Compare T30 reciprocating vs. rotary screw specs.
Ingersoll-Rand Stationary Air Compressor Buying Guide
Choosing the right Ingersoll Rand (IR) compressor is a balance between your current air demand, your facility's electrical infrastructure, and your long-term growth plans. This guide breaks down IR’s three primary commercial categories to help you select the optimal unit.
- Primary Technology Categories (Reciprocating, Rotary Screw, Engine-Driven)
- Infrastructure & Utility Requirements
- Breakdown of Ingersoll-Rand Series
- Air Compressor Technical Specifications
- Choosing the Right Stationary Air Compressor
Primary Technology Categories
Reciprocating Electric Compressors
Reciprocating models utilize a piston-driven displacement pump. The Ingersoll Rand Type 30 (T30) is in this category.
- Compression Cycle: These units are two-stage, meaning air is compressed to an intermediate pressure in the first cylinder, cooled via an intercooler, and then compressed to the final pressure (typically 175 PSI) in a smaller second cylinder.
- Operational Limit: Designed for intermittent duty. These units rely on air cooling and require "off-time" to prevent heat-related component fatigue.
- Infrastructure: Typically requires a vertical or horizontal receiver tank to buffer air delivery and reduce motor start/stop cycles.
Rotary Screw Compressors
Rotary screw models utilize two counter-rotating helical rotors to compress air.
- Operational Limit: Rated for 100% duty cycle. These systems are designed to run continuously under load without overheating.
- Air Quality: Integrated Total Air System (TAS) configurations include internal refrigerated dryers and coalescing filters to remove moisture and oil aerosols at the source.
- Sound Profile: Typically enclosed in sound-attenuating cabinets, resulting in significantly lower decibel ratings compared to reciprocating units.
Engine-Driven Compressors (Gas/Diesel)
Engine-driven units utilize internal combustion engines to drive a reciprocating pump, removing the requirement for electrical infrastructure.
- Drive System: Standardized on the 2475 series reciprocating pump frame.
- Control Systems: Features constant speed control (head unloaders) and automatic idle control to manage engine RPM based on tank pressure.
Infrastructure & Utility Requirements
Electrical Configuration
Before model selection, the facility's electrical supply must be matched to the motor specifications:
- Single-Phase (1-Ph): Common for motors up to 7.5 HP. Typically 230V.
- Three-Phase (3-Ph): Required for most industrial applications and larger motors. Available in 200V, 230V, 460V, and 575V. 3-Phase motors are more efficient for high-torque startups.
Flow Volume (CFM) at Pressure (PSI)
Performance must be evaluated based on ACFM (Actual Cubic Feet per Minute) at the tool’s required operating pressure (usually 90 or 175 PSI).
- Requirement Calculation: The total CFM of all concurrent pneumatic loads should be calculated, including a buffer for system pressure drops and future tool integration.
Air Treatment Integration
Moisture content in compressed air is a byproduct of the compression process.
- Value Packages (-V): Base units without secondary air treatment.
- Premium Packages (-P / TAS): Include air-cooled aftercoolers, electronic drains, and in rotary models, integrated refrigerated dryers to meet specific ISO air quality classes.
Series Technical Breakdown
Reciprocating Series
- 2340 Series (5 HP): Base industrial frame for lower CFM requirements.
- 2475 Series (5–7.5 HP): High-pressure frame utilized for both electric and engine-driven configurations.
- 2545/7100 Series (10–15 HP): Large-format frames paired with 120-gallon receiver tanks for high-volume intermittent demand.
Rotary Series
- UP6 Series: Fixed-speed, belt-driven industrial units.
- R-Series: Newer generation units with enhanced air-end efficiency and integrated electronic controllers.
- RS Series: High-horsepower (40–100+ HP) systems for large-scale manufacturing facilities.
Ingersoll-Rand Stationary Air Compressor Technical Specifications
Ingersoll-Rand Stationary Electric Air Compressors
SS3 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| SS3L3 | 3 | 60 | 11.3 | N/A | N/A |
SS5 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| SS5L5 | 5 | 60 | 18.1 | N/A | N/A |
2340 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| 2340L5-V-200/3 | 5 | 60 | 14.0 | 200 | 3 |
| 2340N5-V-200/3 | 5 | 80 | 14.0 | 200 | 3 |
| 2340L5-V-230/1 | 5 | 60 | 14.0 | 230 | 1 |
| 2340N5-V-230/1 | 5 | 80 | 14.0 | 230 | 1 |
| 2340N5-V-230/3 | 5 | 80 | 14.0 | 230 | 3 |
| 2340L5-V-230/3 | 5 | 60 | 14.0 | 230 | 3 |
| 2340N5-V-460/3 | 5 | 80 | 14.0 | 460 | 3 |
| 2340L5-V-460/3 | 5 | 60 | 14.0 | 460 | 3 |
2475 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| 2475N5-P-230/3 | 5 | 80 | 16.8 | 230 | 3 |
| 2475N5-P-460/3 | 5 | 80 | 16.8 | 460 | 3 |
| 2475N7.5-V-200/3 | 7.5 | 80 | 24.0 | 200 | 3 |
| 2475N7.5-P-200/3 | 7.5 | 80 | 24.0 | 200 | 3 |
| 2475N7.5-V-230/1 | 7.5 | 80 | 24.0 | 230 | 1 |
| 2475N7.5-P-230/3 | 7.5 | 80 | 24.0 | 230 | 3 |
| 2475N7.5-P-460/3 | 7.5 | 80 | 24.0 | 460 | 3 |
| 2475N7.5-V-460/3 | 7.5 | 80 | 24.0 | 460 | 3 |
2545 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| 2545E10-V-200/3 | 10 | 120 | 35.0 | 200 | 3 |
| 2545K10-V-230/3 | 10 | 120 | 35.0 | 230 | 3 |
| 2545E10-V-230/3 | 10 | 120 | 35.0 | 230 | 3 |
| 2545E10-P-230/3 | 10 | 120 | 35.0 | 230 | 3 |
| 2545K10-V-460/3 | 10 | 120 | 35.0 | 460 | 3 |
| 2545E10-V-460/3 | 10 | 120 | 35.0 | 460 | 3 |
| 2545E10-P-460/3 | 10 | 120 | 35.0 | 460 | 3 |
| 2545K10-P-460/3 | 10 | 120 | 35.0 | 460 | 3 |
7100 Series
| Model Number | HP | Tank (Gal) | CFM (@ 175 PSI) | Voltage | Phase |
|---|---|---|---|---|---|
| 7100E15-V-200/3 | 15 | 120 | 50.0 | 200 | 3 |
| 7100E15-V-230/3 | 15 | 120 | 50.0 | 230 | 3 |
| 7100E15-P-230/3 | 15 | 120 | 50.0 | 230 | 3 |
| 7100E15-P-460/3 | 15 | 120 | 50.0 | 460 | 3 |
Ingersoll-Rand Stationary Gas Air Compressors
Ingersoll-Rand Rotary Screw Air Compressors
UP6 Series
| Model Number | HP | Max PSI | Tank (Gal) | CFM | Integrated Dryer |
|---|---|---|---|---|---|
| UP6-5-125 | 5 | 125 | 80/120 | 18.5 | No |
| UP6-5TAS-125 | 5 | 125 | 120 | 18.5 | Yes |
| UP6-7.5-125 | 7.5 | 125 | 80/120 | 28.0 | No |
| UP6-10-125 | 10 | 125 | 80/120 | 38.0 | No |
R-Series
| Model Number | HP | Max PSI | Tank (Gal) | CFM | Integrated Dryer |
|---|---|---|---|---|---|
| R4i-125 | 5 | 125 | 80/120 | 16.9 | No |
| R5.5i-TAS-115 | 7.5 | 115 | 80/120 | 27.5 | Yes |
| R7.5i-125 | 10 | 125 | 80/120 | 36.7 | No |
RS Series (High-Capacity)
| Model Number | HP | Max PSI | Tank (Gal) | CFM | Integrated Dryer |
|---|---|---|---|---|---|
| RS30i-A125 | 40 | 125 | Base Mt | 184.0 | No |
| RS75i-A125 | 100 | 125 | Base Mt | 499.0 | No |
Choosing the Right Stationary Air Compressor for Your Needs
To determine the appropriate compressor configuration for a specific application, technical buyers should evaluate the following parameters:
- Quantification of Air Volume: Calculate the Actual Cubic Feet per Minute (ACFM) requirement by totaling the CFM consumption of all pneumatic tools and machinery intended to operate simultaneously. It is standard technical practice to add a 35% safety margin to this total to account for system pressure drops, potential infrastructure leaks, and future tool integration.
- Duty Cycle Assessment: The choice between reciprocating and rotary screw technology is dictated by usage patterns.
- Intermittent Demand: If the air demand allows for significant "off" periods for pump cooling, a reciprocating (piston) unit is the technical fit.
- Continuous Demand: Applications requiring a constant, 24/7 supply of air necessitate a rotary screw compressor, which is designed for a 100% continuous duty cycle without overheating.
- Utility Infrastructure Verification: For electric models, the motor’s voltage (e.g., 208V, 230V, 460V) and phase (Single-phase vs. Three-phase) must be matched to the facility's electrical panel. Larger motors typically require three-phase power for higher operational efficiency and reduced motor fatigue. For remote or mobile applications, engine-driven gas or diesel models remove electrical constraints but require dedicated ventilation and fuel management.
- Air Quality Class Requirements: Evaluate the sensitivity of the downstream application to moisture and oil aerosols. Applications such as precision electronics, food processing, or automotive refinishing typically require a Total Air System (TAS) configuration, which integrates specialized filtration and refrigerated drying components to meet specific ISO air quality standards.
Product Compliance and Suitability
The product statements contained in this guide are intended for general informational purposes only. Such product statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness, or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand, and follow all manufacturer instructions.
