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

Product Overview

The 88111901 air filter element is a genuine Ingersoll Rand intake filter designed for SSR M37, SSR M37B, SSR M45 and MM45 series screw air compressors. Its high-efficiency synthetic fiber media blocks dust, dirt and airborne particles 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 range, the 88111901 is manufactured to Ingersoll Rand global technical standards. It combines low initial pressure drop, high dust holding capacity and straightforward installation, making it a core consumable for routine maintenance of SSR M37–M45 compressors.

Basic Specifications

• 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 available

Technical Parameters

Filtration Performance

• 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: β₅ ≥ 100

Typical values for Ingersoll Rand SSR M37/M45 class air filter elements; refer to factory test data for specific performance.

Flow and Pressure Drop

• 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 range: 250–450 Pa
• Alarm / final resistance: Alarm at 550 Pa; final resistance 650 Pa (replace immediately)
• Pressure drop vs. energy: Every 100 Pa increase in intake pressure loss raises specific power consumption by approx. 0.4%

Dimensions and Installation

• Overall dimensions: Approx. φ150 × φ80 × 200 mm (OD × ID × height, reference)
• Effective filtration area: Approx. 1.2–1.5 m² (pleated element)
• Pleats: Approx. 60–80 pleats, pitch approx. 7–8 mm
• Mounting: Center through-hole, stud-fixed installation
• Sealing: Polyurethane (PU) end-cap gasket, double-sided seal

Dimensions are reference values for SSR M37/M45 class elements; physical measurement is recommended for confirmation.

Material Construction

• Media: Synthetic fiber media (imported high-efficiency filter paper)
• Media weight: Approx. 100–120 g/m²
• Support mesh: Galvanized metal inner support and outer protective mesh
• End caps: Polyurethane (PU), oil and aging resistant
• Gasket: PU foam gasket, integrally molded with end cap
• Bonding: PU adhesive, temperature resistant and non-debonding

Operating Conditions

• Operating temperature: Continuous -20°C to 80°C; short-term up to 100°C
• Relative humidity: ≤95% RH, no condensation
• Collapse pressure resistance: ≥ 3.0 kPa
• Features: Low resistance, high dust holding capacity, suitable for continuous industrial duty

Service Life and Maintenance

• Service life: Approx. 4,000 hours (8–12 months) under standard conditions; 2,000–3,000 hours in high-dust environments
• Shelf life: 36 months when sealed and stored in a dry, ambient-temperature environment

Standards

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

Maintenance and Installation

Replacement Interval

• Standard conditions: every 4,000 hours or 8–12 months, whichever comes first
• High-dust conditions (mining, building materials, woodworking): every 2,000–3,000 hours
• Replace immediately if the media is visibly blackened, heavily loaded, or differential pressure reaches 650 Pa

Installation Steps

1. Shut down and isolate: Switch off main power, apply lockout/tagout (LOTO), and confirm the machine has fully stopped.
2. Open the air filter housing: Loosen the retaining nut or clips and remove the cover.
3. Remove the old element: Extract 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 with a clean cloth. Do not reverse-blow and reuse the old element.
5. Inspect the new element: Verify part number 88111901; check media for damage, pleat deformation, cracked end caps and aged gaskets.
6. Install the new element: Slide it onto the center stud, ensuring the gasket seats correctly top and bottom without twisting or misalignment.
7. Refit the cover: Reinstall the cover and tighten nuts or clips evenly to ensure a gap-free seal.
8. Start-up check: Start the compressor and listen for air leaks around the filter housing; confirm normal operation.

FAQ

Q1: Is the 88111901 a genuine Ingersoll Rand part?
A: Yes, the 88111901 is a genuine Ingersoll Rand replacement part manufactured to Ingersoll Rand global technical standards for SSR M37/M45 series compressors.

Q2: Which compressors does the 88111901 fit?
A: It fits Ingersoll Rand SSR M37, SSR M37B, SSR M45 and MM45 series screw compressors. If unsure, provide the compressor serial number and we will confirm exact fitment.

Q3: How do I know when to replace the air filter element?
A: Replace when: (1) the media is visibly blackened or heavily loaded; (2) operating differential pressure reaches the 550 Pa alarm value; or (3) the 4,000-hour or 8–12 month interval is reached.

Q4: What happens if the air filter is left 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, wearing rotors and bearings and aging oil seals, which can raise oil carryover and even lead to airend failure.

Q5: Can the 88111901 be interchanged with other SSR air filter elements?
A: No. Different SSR power classes use different element dimensions and flow ratings. Always confirm the correct part number using the compressor serial number.

Compatible Models

• SSR M Series: SSR M37, SSR M37B
• SSR M Series: SSR M45
• MM Series: MM45

Compatibility data is sourced from the Ingersoll Rand factory parts system. To confirm fitment for a specific machine, provide the compressor serial number and we will verify the correct part number.

Related Parts

• 89295976 — Air filter element for R4–R11 small screw compressors
• 88171913 — Air filter element for UP5-11C-8 and UP5 small screw compressors
• 24578023 — Air filter element for R-series 5–11 kW compressors
• 46856837 — Air filter element for V-series 15–22 kW compressors
• 88111901 — Air filter element for SSR M37 (this page)

Note: Values marked as reference are typical industry data for Ingersoll Rand SSR M37/M45 class air filter elements. For 100% exact match, please provide the full compressor serial number so we can check the factory parts diagram and confirm current supply and lead time. Contact us for a quotation, datasheet or sample.