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

Product Overview

54672522 is the intake air filter element for Ingersoll Rand NG R-Series (Next Generation R-Series) 30–37 kW screw air compressors. It mounts inside the external air cleaner assembly, upstream of the airend intake. As the first filtration barrier in the compressed air system, its condition directly affects how long the downstream oil separator, oil filter and lubricant will last.

One part number covers four models on the same platform: R30I, R30N, R37I and R37N. Both 30 kW and 37 kW ratings, and both fixed-speed (N) and variable-speed (I) configurations, use the same element — no differentiation by power or drive type is required at the point of purchase.

Key Specifications

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

Technical Data

Filtration Performance

• Filtration rating: ≤10 μm
• Filtration efficiency: ≥99% for particles ≥5 μm
• Dust holding capacity: approx. 900 g
• Filter classification: air intake elements are characterised per ISO 5011 by filtration efficiency, intake restriction and dust holding capacity — the EN 779 HVAC filter class system does not apply

Flow and Pressure Drop

• Face velocity: approx. 0.036 m/s
• Initial pressure drop: with a new element fitted, intake vacuum should stabilise below 0.05 bar (5 kPa)
• Alarm / terminal restriction: per the machine's intake vacuum gauge and controller alarm
• Energy relationship: every 1 kPa rise in intake restriction adds roughly 1% to machine energy consumption

Rising intake restriction lowers intake pressure and air density. To hold the set discharge pressure and flow, the machine must work harder and specific power increases. Referenced to 0.7 MPa discharge pressure and 101.3 kPa atmospheric pressure, theoretical compression-ratio calculation gives:

• 0 kPa (new element): ratio 7.91 — baseline
• 2 kPa: ratio 8.07 — approx. +2.0% energy
• 4 kPa: ratio 8.24 — approx. +4.1% energy
• 6 kPa: ratio 8.41 — approx. +6.3% energy

Practical implication: as an element loads from new to heavily restricted (0 → 6 kPa), machine energy consumption climbs by roughly 6%. R-Series units commonly run 6,000+ hours a year, and that extra power cost far exceeds the price of an element — the engineering basis for the factory-set differential-pressure alarm.

Dimensions and Installation

• Overall: 194 mm OD × 114 mm ID × 399 mm overall height
• Media pack height: 367 mm (approx. 32 mm for both end structures)
• Construction: pleated radial-seal cartridge, primary / outer element
• Effective filtration area: approx. 3.0 m²
• Pleat count: approx. 101
• Pleat spacing: approx. 4.8 mm
• Installation interface: push-in radial fit into the outlet end of air cleaner assembly 54652565

Sourcing note: when cross-checking a replacement, compare all three dimensions — 194 mm OD, 114 mm ID, 399 mm overall height. The radial seal sits on the outer circumference of the element end; push it fully home and confirm the seal is evenly compressed around its full circumference.

Materials

• Media: imported wood-pulp filter paper (industry-typical US HV or Ahlstrom grades)
• Media weight: approx. 130 g/m²
• Inner and outer support: galvanised steel perforated cage (inner core plus outer guard)
• End caps: metal end caps (galvanised steel sheet) with polyurethane bonding
• 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, no condensation
• Burst strength: media burst approx. 200–400 kPa (per ISO 2758 paper burst test)
• Collapse resistance: element withstands the machine's intake alarm differential pressure without collapsing
• Special functions: no flame-retardant, anti-static or special-coating designation for this part number

Service Life

• Service life: 2,000 hours or 3 months, whichever comes first
• High-dust environments: shorten to approx. 1,500 hours, or add a high-dust pre-filter kit
• Shelf life: approx. 2–3 years, unopened, in a dry, ventilated location

Standards

• Applicable product standard: ISO 5011 (inlet air cleaning equipment for internal combustion engines and compressors — performance testing), evaluated on 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 generic test methods for hydraulic fluid power filter elements. If a supplier can only reference hydraulic element standards, request ISO 5011 data or the OEM specification sheet.

Standard Installation and Maintenance Steps

One technician, approximately 20 minutes.

1. Shut down, depressurise, lock out / tag out. Isolate and lock out the main power supply. Wait until the controller shows 0 bar system pressure. Check: gauge reads 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 undistorted.
3. Remove the old element and inspect it. Lift the element out vertically and examine dust distribution and surface condition. Check: even grey-brown dust loading is normal; oily residue on the surface indicates oil carry-over upstream and the cause should be investigated.
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 the walls; in humid regions also check the housing base for condensate.
5. Check the breather filter. Breather filter 39123111 shares the 2,000-hour interval with the air filter. Inspect it now; if blocked or heavily loaded, replace it at the same time. Check: media intact, no heavy dust loading.
6. Fit the new element and confirm the seal. Align 54672522 with the housing outlet and push it fully home. Confirm the radial seal ring is evenly compressed, with no trapped material and no skewing. Check: element face flush with the housing, even seal compression marks all round.
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 machine and run at idle for 5 minutes. Check: intake vacuum stabilises below 0.05 bar (5 kPa), confirming a good seal; if vacuum is high, check that the seal ring is properly seated.

Non-negotiable rule: do not start the machine until the element is fully seated and the seal ring is compressed. With a radial-seal design, an element that is not pushed fully home allows air to bypass directly between the seal and the housing — equivalent to running with no filter at all.

Frequently Asked Questions

Which models use 54672522? All four models on 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 R30 air filter the same as the 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 an identical filter housing and element.

Will it fit an R45 or R55? No. R45–R75 uses 54672530; R90–R110 uses 23429822. Filter housing dimensions differ across power platforms — a cross-platform element will not fit or seal.

How often should it be changed? 2,000 hours or 3 months under standard conditions, whichever comes first. In cement, quarry and mining environments with heavy dust, shorten to around 1,500 hours. Where site dust is persistently high, add a high-dust pre-filter kit (24737298 / 24737306) so that only the pre-filter layer is replaced when it loads, extending 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 covering these parts? Yes. 2,000-hour kit 24730897 (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 pack sizes.

Can a dirty element be blown clean and reused? Not recommended. This is a radial-seal pleated paper element designed for single use. Reverse blowing with compressed air removes only surface dust; fine particles embedded in the media cannot be cleared, and blow pressure can rupture fibres or distort pleat spacing, creating invisible channels. A cleaned element that looks serviceable is often functionally failed — the risk outweighs the saving.

How do I know it needs changing? Four signals: (1) rising intake vacuum gauge reading; (2) controller service-due alarm; (3) media surface completely covered in dust with the original pleat pattern no longer visible; (4) falling discharge flow with rising energy consumption. Any one signal warrants replacement.

Is this a genuine part, and how is counterfeiting prevented? The 54672522 described here is an Ingersoll Rand OEM part number. Genuine parts carry Ingersoll Rand anti-counterfeit marking and warranty. When sourcing, order against the part number itself — the part number is the only unambiguous identifier. Do not order on the basis of "fits R30/R37" or visual similarity alone.

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; they belong to the NG R-Series 30–37 kW platform. Fixed or variable speed, and whether a refrigerant dryer is fitted, does not affect air filter selection.

Cross-platform interchange is not possible. Air filter part numbers for other power bands 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, send a photo of the nameplate with the full model code and we will confirm by part number before you order.

Related Parts

On the R-Series 30–37 kW platform, the following intake and lubrication system parts share the maintenance interval with the air filter (part numbers from the R30I/R30N/R37I/R37N parts manual):

• Air cleaner assembly 54652565 — housing that carries and locates the air filter element. Inspect latches, sealing faces and outlet end for distortion.
• Oil filter 54672654 — removes wear debris and sludge from lubricant, protecting bearings and rotors. Replace with the air filter; check for seepage at the sealing face afterwards.
• Oil separator 54749247 — separates oil mist from compressed air and returns oil, controlling discharge oil carry-over. Check the scavenge line for blockage at replacement.
• Breather filter 39123111 — balances pressure in the separator tank and prevents external dust entering the oil circuit. Inspect with the air filter; replace if blocked.
• Ultra Coolant 38459582 — standard coolant for R-Series screw compressors, providing lubrication and sealing. Test oil condition per machine requirements; avoid mixing with other brands.
• 2,000-hour service kit 24730897 — covers fixed and variable speed. Consolidates all same-interval wear parts in one order to cut downtime events.
• 4,000-hour service kits 24730939 (fixed speed) / 24766123 (variable speed) — major service kits. Schedule by machine running hours.
• High-dust pre-filter kits 24737298 / 24737306 — additional pre-filter layer for sites with excessive dust. Replace only the pre-filter layer when it loads, extending main element life.

Recommended grouping: the air filter, oil filter and oil separator share the 2,000-hour interval and should be replaced together to avoid staggered maintenance cycles. At 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.