Ingersoll Rand 54672522 Air Filter | NG R-Series R30/R37 OEM Part

Product Overview

54672522 is the intake air filter element for Ingersoll Rand NG R-Series (Next Generation R-Series) 30–37 kW rotary screw compressors. It is installed inside the external air cleaner assembly, upstream of the airend inlet, and acts as the first filtration barrier for the compressed air system — its condition directly affects the service life of the downstream oil separator, oil filter, and lubricant.

A key advantage of this part number is platform-wide commonality: R30I, R30N, R37I, and R37N all use 54672522. Both 30 kW and 37 kW models, and both fixed-speed (N) and variable-speed (I) configurations, share the same element. No differentiation by power rating or drive type is required at the point of purchase.

Core Specifications

• Part number: 54672522
• Product name: Element, Air Filter
• Brand: Ingersoll Rand
• Applicable platform: NG R-Series 30–37 kW
• Compatible models: R30I, R30N, R37I, R37N (also R30, R37, R30IE, R37IE)
• Dimensions: OD 194 mm × ID 114 mm × overall height 399 mm
• Seal type: Radial seal
• Net weight: approx. 1.25 kg
• Effective filtration area: approx. 3.0 m²
• Filtration rating: ≤10 μm
• Recommended replacement interval: 2,000 hours or 3 months

Technical Parameters

Filtration Performance

• Filtration rating: ≤10 μm
• Filtration efficiency: ≥99% for particles ≥5 μm
• Filter class: Air intake filters are characterized per ISO 5011 by filtration efficiency, intake restriction, and dust holding capacity — not by EN 779 HVAC filter classes
• Dust holding capacity: approx. 900 g

Flow and Restriction

• Rated flow: Matched to NG R-Series 30–37 kW platform displacement; one element per compressor
• Face velocity: approx. 0.036 m/s
• Initial pressure drop: After installing a new element, intake vacuum should stabilize below 0.05 bar (5 kPa)
• Alarm / final restriction: Per the machine's intake vacuum gauge reading and controller alarm setpoint
• Pressure drop vs. energy: Every 1 kPa increase in intake restriction raises compressor energy consumption by approximately 1%

Restriction and energy relationship. Rising intake restriction lowers intake pressure and air density; the compressor must do more work to maintain set discharge pressure and flow, raising specific power. At 0.7 MPa discharge pressure and 101.3 kPa atmospheric pressure, theoretical compression-ratio calculations show: 0 kPa (new element) = baseline; 2 kPa = +2.0%; 4 kPa = +4.1%; 6 kPa = +6.3%. Over a typical 6,000+ hour annual run, the added electricity cost far exceeds the price of a filter element — the engineering basis for the OEM restriction alarm.

Construction and Installation

• Dimensions: OD 194 mm × ID 114 mm × overall height 399 mm
• Media body height: 367 mm (end structures total approx. 32 mm)
• Type: Pleated radial-seal cylindrical element, primary / outer element
• Effective filtration area: approx. 3.0 m²
• Pleat count: approx. 101
• Pleat spacing: approx. 4.8 mm
• Mounting: Radial push-in, installed at the outlet end of the air cleaner assembly (54652565)
• Seal: Radial seal

Materials

• Media: Imported wood-pulp filter paper (industry-common HV or Ahlstrom media)
• Media basis weight: approx. 130 g/m²
• Inner/outer support: Galvanized steel perforated core (inner cage + outer mesh)
• End caps: Metal end caps (galvanized steel) with polyurethane adhesive
• Seal: Radial seal ring (oil-resistant rubber)
• Bonding: Polyurethane (PU) hot-melt adhesive

Operating Tolerance

• Operating temperature: −10 to +100 °C
• Relative humidity: ≤80% RH, non-condensing
• Burst strength: Media burst strength approx. 200–400 kPa (per ISO 2758)
• Collapse resistance: Element must withstand the machine's intake alarm differential without collapsing
• Special features: No flame-retardant, anti-static, or special coating specifications are indicated for this model

Service Life and Storage

• Service life: 2,000 hours or 3 months, whichever comes first
• High-dust environments: Shorten to approx. 1,500 hours, or fit a high-dust pre-filter kit
• Shelf life: approx. 2–3 years (unopened, dry, ventilated storage)

Applicable Standards

• Product standard: ISO 5011 (inlet air cleaning equipment for internal combustion engines and compressors — performance testing), evaluating filtration efficiency, intake restriction, and dust holding capacity
• Commonly cited test standards: ISO 2941 / 2942 / 2943 / 3723 / 3724 / 3968
• Note on applicability: The ISO 29xx / 37xx series are general test methods for hydraulic fluid power filter elements. If a supplier can only provide hydraulic filter standards, request ISO 5011 data or the OEM specification sheet.

Standard Installation and Maintenance Procedure

Single-person operation, approximately 20 minutes.

1. Shut down, depressurize, lock out/tag out. Disconnect and lock out the main power. Wait until the controller shows 0 bar system pressure. Check: gauge at zero, no residual air flow noise.
2. Open the air cleaner housing. The air cleaner is externally mounted on the R-Series enclosure. Release the end-cover latches or bolts. Check: latches free of seizure, cover not deformed.
3. Remove the old element and inspect its condition. Lift the old element out vertically and examine dust distribution and surface condition. Check: uniform grey-brown dust loading is normal; oily residue on the surface indicates oil carryover upstream and requires investigation.
4. Clean the housing interior. Wipe the inner walls and base with a dry, lint-free cloth. Do not blow compressed air into the housing — this drives dust into the intake tract. Check: no loose dust on inner walls; in humid locations, also check for condensate at the housing base.
5. Inspect the breather filter. The breather filter (part number 39123111) shares the 2,000-hour interval. Inspect it now: if clogged or heavily loaded, replace it at the same time. Check: media intact, no severe dust loading.
6. Install the new element and confirm the seal. Align 54672522 with the housing outlet and push it in fully. Confirm the radial seal ring is evenly compressed around its circumference, with no trapped material and no skewing. Check: element face flush with the housing, even compression marks around the seal.
7. Reassemble, reset the timer, and verify. Refit the end cover and tighten the latches. Reset the air filter service timer on the controller. Start the compressor and run at idle for 5 minutes. Check: intake vacuum stabilizes below 0.05 bar (5 kPa), confirming a good seal. If vacuum is high, check that the seal ring is properly seated.

Installation rule: Do not start the compressor before the element is fully seated and the seal ring is properly compressed. With a radial seal, if the element is not pushed fully home, air bypasses directly through the gap between seal and housing — equivalent to running with no filter at all.

Frequently Asked Questions

Which models use 54672522?
All four models in the NG R-Series 30–37 kW platform: R30I, R30N, R37I, R37N. Fixed-speed (N) and variable-speed (I) configurations share the same air filter. R30, R37, R30IE, and R37IE also use this part number.

Is the air filter the same for R30 and R37?
Yes. 54672522 fits both R30 (30 kW) and R37 (37 kW). The difference between the two is motor power and displacement; the 30–37 kW platform uses the same filter housing and element.

Can it be used on an R45 or R55?
No. R45–R75 uses 54672530, and R90–R110 uses 23429822. Filter housing dimensions differ across power platforms; cross-platform installation will not fit or seal.

How often should it be replaced?
Every 2,000 hours or 3 months under standard conditions, whichever comes first. In high-dust environments such as cement, quarry, or mining, shorten to approximately 1,500 hours. Where site dust levels are persistently high, fit a high-dust pre-filter kit (24737298 / 24737306) — when the pre-filter layer fails, replace only the pre-filter to extend main element life.

What else should be replaced at the same time?
Parts sharing the 2,000-hour interval: oil filter 54672654, oil separator 54749247, and breather filter 39123111. All share the same interval as the air filter; replacing them together avoids staggered maintenance cycles and repeated downtime.

Are there service kits containing these parts?
Yes. 2,000-hour kit 24730897 (for both fixed and variable speed), 4,000-hour fixed-speed kit 24730939, and 4,000-hour variable-speed kit 24766123.

Which lubricant should be used?
Ingersoll Rand Ultra Coolant, part number 38459582, suitable for all R-Series screw compressors. Available in 5 L, 20 L, and 55-gallon sizes.

Can a dirty element be blown clean and reused?
Not recommended. This is a radial-seal pleated paper element designed for single use. Blowing it out with compressed air removes only surface dust; fine particles embedded deep in the media cannot be removed, and blow-off pressure can fracture fibers or distort pleat spacing, creating invisible channels. Reusing a cleaned element gives a "looks clean, actually failed" condition — the risk outweighs any benefit.

How do I know when to replace it?
Four signals: (1) rising intake vacuum gauge reading; (2) controller service-due alarm; (3) media surface completely covered with dust, original pleat pattern no longer visible; (4) reduced discharge flow with increased energy consumption. Any one signal indicates replacement.

Is this a genuine part? How can counterfeits be avoided?
The 54672522 described on this page is an Ingersoll Rand OEM part number. Genuine parts carry Ingersoll Rand anti-counterfeit identification and warranty. Always order by the part number itself — the part number is the only unambiguous identity. Do not order based solely on "fits R30/R37" claims or visual similarity.

Compatible Models

• R30I — 30 kW, variable speed (VSD), with refrigerant dryer
• R30N — 30 kW, fixed speed
• R37I — 37 kW, variable speed (VSD), with refrigerant dryer
• R37N — 37 kW, fixed speed
• R30 — 30 kW
• R37 — 37 kW
• R30IE — 30 kW, variable speed
• R37IE — 37 kW, variable speed

All eight models above use the product on this page and belong to the NG R-Series 30–37 kW platform. Fixed or variable speed and whether a refrigerant dryer is fitted do not affect air filter selection. Cross-platform interchange is not possible. Air filter part numbers for other power platforms in the same series:

• R45–R75 (45–75 kW): 54672530
• R90–R110 (90–110 kW): 23429822

If your machine's nameplate model is not listed, provide a photo of the nameplate and the full model number, and we will cross-reference by part number before you order.

Related Parts

Components in the intake and lubrication system of the R-Series 30–37 kW platform that share the same service interval as the air filter (part numbers from the R30I/R30N/R37I/R37N parts manual):

• Air cleaner assembly (54652565): Housing that carries and secures the air filter element. Check latches, sealing faces, and outlet end for deformation.
• Oil filter (54672654): Removes wear debris and sludge from lubricant, protecting bearings and rotors. Replace together with the air filter; after replacement, check the sealing face for leaks.
• Oil separator (54749247): Separates oil mist from compressed air and returns oil, controlling discharge oil carryover. When replacing, also check the oil return line for blockage.
• Breather filter (39123111): Balances pressure in the oil separator tank and prevents external dust from entering the oil circuit. Inspect together with the air filter; replace if clogged.
• Lubricant — Ultra Coolant (38459582): Standard coolant for R-Series screw compressors, providing both lubrication and sealing. Test oil per machine requirements; avoid mixing with other brands.
• 2,000-hour service kit (24730897): For both fixed and variable speed. Supplies all same-interval wear parts in one order, reducing downtime events.
• 4,000-hour service kits: 24730939 (fixed speed) / 24766123 (variable speed). Major service kits; schedule per machine running hours.
• High-dust pre-filter kits (24737298 / 24737306): Additional pre-filter layer for sites with excessive dust. When the pre-filter layer fails, replace only the pre-filter to extend main element life.

Recommended grouped replacement: The air filter, oil filter, and oil separator share the 2,000-hour interval. Replace them together to avoid staggered maintenance cycles. On dusty sites, fit the high-dust pre-filter kit first — the pre-filter costs far less than the main element and is faster to change.