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

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. Built with high-efficiency synthetic fiber media, it blocks dust and particulate matter from entering the airend, protecting rotors, bearings and shaft 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 and delivers low initial pressure drop, high dust-holding capacity and straightforward installation. It is a core consumable for routine maintenance of SSR M37–M45 compressors.

Technical Specifications

Filtration Performance

• Filtration rating: approx. 5 μm
• 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

Values are typical for Ingersoll Rand SSR M37/M45 class filter elements; refer to original factory test data for exact figures.

Flow and Pressure Drop

• Rated air flow: approx. 6–8 Nm³/min (for 37–45 kW models)
• Initial pressure drop: approx. 200–250 Pa at rated flow, clean condition
• Operating differential range: 250–450 Pa
• Alarm / final resistance: alarm at 550 Pa; replace at 650 Pa
• Energy impact: every 100 Pa increase in intake pressure loss raises specific power by approx. 0.4%

Dimensions and Installation

• Dimensions: approx. φ150 × φ80 × 200 mm (OD × ID × height, reference)
• Effective filtration area: approx. 1.2–1.5 m² (pleated media)
• Pleats: approx. 60–80, pleat spacing approx. 7–8 mm
• Mounting: center through-hole, stud-fixed installation
• Sealing: polyurethane (PU) end-cap gasket, double-sided seal

Materials and Operating Conditions

• Media: synthetic fiber filter paper (imported high-efficiency grade)
• Media weight: approx. 100–120 g/m²
• Support: galvanized inner metal mesh, outer protective mesh
• End caps: polyurethane (PU), oil and aging resistant
• Seal: PU foam gasket, integrally molded with end cap
• Temperature range: continuous -20°C to 80°C; short-term up to 100°C
• Relative humidity: ≤95% RH, no condensation
• Collapse pressure resistance: ≥3.0 kPa

Service Life and Standards

• 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 in sealed packaging, dry ambient conditions
• Standards: ISO 5011; ISO 16890 / EN 779; GB/T 14295; GB/T 6165

Maintenance and Installation

Replacement Intervals

• 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 or heavily loaded, or if differential pressure reaches 650 Pa

Installation Steps

1. Shut down and isolate: switch off main power, apply lockout/tagout (LOTO) and confirm the unit has fully stopped.
2. Open the filter housing: release the retaining nut or clips and remove the cover.
3. Remove the old element: pull out the old 88111901 element and check whether the center seal remains in the housing groove.
4. Clean the housing: wipe the inner walls and sealing faces 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 or aged gaskets.
6. Fit the new element: slide it over the center stud, ensuring the gasket seats correctly top and bottom without skewing or twisting.
7. Refit the cover: reinstall the cover and tighten the nut or clips evenly for a gap-free seal.
8. Start-up check: start the compressor, listen for air leaks at the filter housing and confirm normal operation.

FAQ

Q1: Is the 88111901 a genuine original part?
A: Yes, the 88111901 is a genuine Ingersoll Rand part manufactured to Ingersoll Rand global technical standards and designed for 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 screw compressors. If you are unsure, provide the machine serial number and we will match it precisely.

Q3: How do I know when to replace the air filter?
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 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 shaft seals, which can raise oil carryover and even lead to airend failure.

Q5: Can the 88111901 be interchanged with other SSR filter elements?
A: Filter dimensions and rated flow differ across SSR power ranges, so elements are not freely interchangeable. Always confirm the correct part number using the machine serial number.

Compatible Models

• SSR M series: SSR M37, SSR M37 B
• SSR M series: SSR M45
• MM series: MM45

Compatibility data is based on the Ingersoll Rand original parts system. To confirm fitment, provide the compressor serial number and we will verify the latest availability.

Related Parts

• 89295976 — Air filter element for R4–R11 small screw compressors
• 88171913 — Air filter element for UP5-11C-8, UP5 series small screw compressors
• 24578023 — Air filter element for R series 5–11 kW
• 46856837 — Air filter element for V series 15–22 kW
• 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 filter elements. For 100% accurate matching, provide the full compressor serial number and we will confirm the original parts drawing and current supply information. Request a quotation or datasheet for export orders.