Ingersoll Rand 88111901 Air Filter Element | SSR M37/M45 Compressor Intake

Product Overview

The 88111901 air filter element is a genuine Ingersoll Rand intake filter designed for SSR M37, SSR M37 B, SSR M45, and MM45 series screw air compressors. Its high-efficiency synthetic fiber media blocks dust, dirt, and particulate matter from entering the airend, protecting rotors, bearings, and oil seals from wear and extending compressor service life.

As an original intake filtration component for the Ingersoll Rand SSR series, the 88111901 is manufactured to Ingersoll Rand global technical standards. It offers low initial resistance, high dust holding capacity, and straightforward installation, making it a core consumable for routine maintenance of SSR M37–M45 compressors.

Basic Specifications

Item	Specification
Part Number	88111901
Brand	Ingersoll Rand
Component	Air Filter Element
Product Line	CC
Product Class	P266
Lead Time	Approx. 150 days (factory order)
Unit of Measure	EA
Status	Normally supplied

Technical Parameters

1. Filtration Performance (Core Indicators)

Parameter	Value
Filtration Rating	Approx. 5 μm
Filtration Efficiency	Approx. 98% @ 5 μm
Filter Class	F5 (medium-efficiency pre-filter, per EN 779 / ISO 16890)
Dust Holding Capacity	Approx. 0.30–0.40 kg (at rated flow and final resistance)
Beta Ratio β	β₅ ≥ 100

Note: Values are typical for Ingersoll Rand SSR M37/M45 air filter elements of this class. Refer to original factory test data for specific figures.

2. Flow and Resistance Parameters

Parameter	Value
Rated Air Flow	Approx. 6–8 Nm³/min (for 37–45 kW models)
Initial Pressure Drop	Approx. 200–250 Pa (clean, at rated flow)
Operating Differential Pressure Range	250–450 Pa
Alarm / Final Resistance	Alarm: 550 Pa; Final resistance: 650 Pa (must replace)
Pressure Drop vs. Energy	Every 100 Pa increase in inlet pressure loss raises compressor specific power by approx. 0.4%

3. Dimensions and Installation

Parameter	Value
Dimensions	Approx. φ150 × φ80 × 200 mm (OD × ID × H, reference)
Effective Filter Area	Approx. 1.2–1.5 m² (pleated element, unfolded)
Pleats / Pleat Spacing	Approx. 60–80 pleats, spacing approx. 7–8 mm
Mounting Interface	Center through-hole, bolt-fixed installation
Sealing	Polyurethane (PU) end-cap gasket, double-sided seal

Note: Dimensions are reference values for this class of SSR M37/M45 air filter elements. Physical measurement is recommended for confirmation.

4. Material Construction

Parameter	Value
Media	Synthetic fiber media (imported high-efficiency filter paper)
Media Weight	Approx. 100–120 g/m²
Inner/Outer Support	Galvanized metal inner support mesh, outer protective mesh
End Caps	Polyurethane (PU) end caps, oil and aging resistant
Seal	Polyurethane foam gasket, integrally molded with end cap
Adhesive	Polyurethane adhesive bonding end caps to media, heat resistant, no debonding

5. Operating Condition Tolerance

Parameter	Value
Operating Temperature	Continuous: -20°C to 80°C; short-term peak: 100°C
Relative Humidity	≤95% RH, no condensation
Collapse Pressure Resistance	Overall collapse differential pressure ≥ 3.0 kPa
Special Features	Low resistance, high dust holding capacity, suitable for continuous industrial operation

6. Service Life and Maintenance

Parameter	Value
Service Life	Approx. 4,000 hours (approx. 8–12 months) under standard conditions; reduced to 2,000–3,000 hours in high-dust environments
Shelf Life	36 months in original sealed packaging, at room temperature and dry conditions

7. Applicable Standards

• ISO 5011: Inlet air cleaning equipment for internal combustion engines and compressors — performance testing (efficiency and dust capacity)
• ISO 16890 / EN 779: Air filters for general ventilation — classification
• GB/T 14295: Air filters
• GB/T 6165: Test methods for air filter performance (efficiency and resistance)

Standard Maintenance and Installation Steps

Replacement Interval

• Standard conditions: every 4,000 hours or 8–12 months, whichever comes first
• High-dust conditions (mining, building materials, woodworking shops, etc.): every 2,000–3,000 hours
• Replace immediately if visual inspection shows blackened media, heavy dust accumulation, or differential pressure reaches 650 Pa

Installation Steps

1. Shut down and disconnect power: Turn off the main power to the compressor, apply lockout/tagout (LOTO), and confirm the unit has fully stopped.
2. Open the air filter housing cover: Loosen the retaining nut or clips on the filter cover and remove the cover.
3. Remove the old element: Pull out the old 88111901 element and check whether the center gasket remains in the housing groove.
4. Clean the housing: Wipe the inner walls and sealing surfaces of the filter housing with a clean cloth to remove dust and debris. Never reverse-blow an old element with compressed air and reuse it.
5. Inspect the new element: Verify part number 88111901; check media for damage, pleats for deformation, end caps for cracks, and gasket for aging.
6. Install the new element: Slide the new element onto the center mounting stud, ensuring the gasket seats correctly top and bottom without skewing or twisting.
7. Reinstall the cover: Refit the cover and tighten the nut or clips evenly to ensure a gap-free seal.
8. Start-up check: Start the compressor, listen for air leaks at the filter housing, and confirm normal operation.

Frequently Asked Questions

Q1: Is the 88111901 a genuine OEM part?

A: The 88111901 is a genuine Ingersoll Rand part manufactured to Ingersoll Rand global technical standards, suitable for Ingersoll Rand SSR M37/M45 series compressors.

Q2: Which compressors does the 88111901 fit?

A: It fits Ingersoll Rand SSR M37, SSR M37 B, SSR M45, and MM45 series screw compressors. If you are unsure about your model, provide the compressor serial number and we will match it precisely.

Q3: How do I know when to replace the air filter element?

A: Replace when: (1) visual inspection shows blackened media or heavy dust accumulation; (2) operating differential pressure reaches the alarm value of 550 Pa; or (3) the 4,000-hour or 8–12 month interval is reached.

Q4: What happens if the air filter element is too dirty?

A: A clogged element restricts intake air, reducing discharge volume and increasing specific power and energy consumption. In severe cases, dust enters the airend, causing rotor and bearing wear and oil seal degradation, leading to higher oil carryover or even airend failure.

Q5: Can the 88111901 be interchanged with other SSR air filter elements?

A: Air filter elements for different power classes of SSR models have different dimensions and flow capacities and are not interchangeable. Always confirm the correct part number using the compressor serial number.

Compatible Models

Series	Specific Models
SSR M Series	SSR M37, SSR M37 B
SSR M Series	SSR M45
MM Series	MM45

Compatibility data is sourced from the Ingersoll Rand OEM parts system. To confirm fitment for your specific machine, provide the compressor serial number and we will verify it for you.

Related Parts

Part Number	Name	Notes
89295976	Air Filter Element	For R4–R11 series small screw compressors
88171913	Air Filter Element UP5-11C-8	For UP5 series small screw compressors
24578023	Air Filter Element 5-11KW	For R series 5–11 kW
46856837	Air Filter Element V 15-22KW	For V series 15–22 kW
88111901	Air Filter Element SSR M37	This page

Note: Parameters marked as "reference" are typical industry values for Ingersoll Rand SSR M37/M45 air filter elements of this class. Specific dimensions and performance are subject to original factory test reports. For 100% accurate matching, provide the complete compressor serial number and we will check the OEM parts diagram and confirm current supply information.