Product
Ingersoll Rand MM350-2S Air Filter Element 47742049001 | OEM Part
Air filter element 47742049001 for Ingersoll Rand MM350-2S two-stage screw compressors (350 kW / 8.5 bar(g) / 64.1 m³/min). 5–10 μm filtration, 2000-hour service interval. Verify by old-part number before ordering — this model uses multiple filter part numbers.
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- OEM / ODM customization available
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Product Overview
47742049001 is the intake air filter element for the Ingersoll Rand MM350-2S two-stage screw air compressor. It mounts inside the external air filter assembly, upstream of the airend intake. Incoming air passes through the element first; dust, grit and fibres are captured on the media surface and in its depth, so only clean air reaches the airend.
One point this page makes clear up front: the MM350-2S intake system does not use a single filter part number. Air filter configuration varies with machine version and configuration quantity, so several filter part numbers exist in parallel. This page makes no assumption that one element fits every MM350-2S. Before ordering, read the part number on the old element itself and confirm its mounting position — do not order on machine model alone. This is the most common sourcing error on high-power compressor consumables.
Duty context: the MM350-2S is a 350 kW two-stage machine with 64.1 m³/min displacement at 8.5 bar(g) — a high-flow intake condition. The element handles far more air per hour than mid-size machines, so filtration area and structural strength must match.
| Item | Value |
|---|---|
| Part number | 47742049001 |
| Description | Air Filter Element |
| Brand | Ingersoll Rand |
| Application | MM350-2S two-stage screw compressor (350 kW) |
| Machine displacement | 64.1 m³/min @ 8.5 bar(g) |
| Construction | Dry pleated element |
| Dimensions | Confirm by measuring the old part |
| Filtration rating | 5–10 μm |
| Recommended change interval | 2000 hours or 3 months |
Basic Specifications
| Parameter | Detail |
|---|---|
| Part number | 47742049001 |
| Brand | Ingersoll Rand |
| Product name | Air Filter Element |
| Category | Intake filtration |
| Application | MM350-2S (350 kW / 8.5 bar two-stage screw machine) |
| Mounting position | Inside external air filter assembly, upstream of airend intake |
| Quantity per machine | Per machine configuration — confirm against the actual unit |
| Change interval | 2000 hours or 3 months |
Fitment confirmation: this element is used on Ingersoll Rand MM350-2S machines. Note that this model uses multiple air filter part numbers with different mounting positions and functions. Before ordering, read the part number on the old element and confirm the mounting position, or send a photo of the old part plus the machine nameplate and we will cross-check against the machine configuration. Do not order on "fits MM350-2S" alone.
Technical Data
Filtration performance
| Parameter | Value / note |
|---|---|
| Filtration rating | 5–10 μm |
| Filtration efficiency | ≥98% for particles ≥5 μm |
| Filter class | HVAC filter classes (EN 779) do not apply; intake elements are characterised per ISO 5011 by efficiency, restriction and dust holding capacity |
| Dust holding capacity | — |
Flow and restriction
| Parameter | Value / note |
|---|---|
| Rated air flow | Matched to MM350-2S intake (machine displacement 64.1 m³/min @ 8.5 bar) |
| Face velocity | — |
| Initial pressure drop | Approx. 0.5–1.0 kPa (approx. 50–100 mmH₂O) |
| Operating differential range | From new-element initial restriction to the clogging alarm value |
| Alarm / final restriction | Per the machine intake restriction indicator or controller intake vacuum alarm |
| Restriction vs. energy | Each 1 kPa rise in intake restriction adds roughly 1% to machine energy consumption |
Restriction and energy consumption
Rising intake restriction lowers intake pressure and density. To hold the set discharge pressure and flow, the machine must do more work and specific power rises. Calculated on compression ratio at 0.8 MPa discharge and 101.3 kPa atmospheric pressure:
| Intake restriction | Compression ratio | Relative energy increase |
|---|---|---|
| 0 kPa (new element) | 8.90 | Baseline |
| 2 kPa | 9.08 | +2.0% |
| 4 kPa | 9.26 | +4.1% |
| 6 kPa | 9.45 | +6.2% |
Engineering implication: the MM350-2S is a 350 kW continuous-duty machine. At 8000 running hours per year, energy consumption rises by roughly 6% over the life of an element from new to heavily clogged — the electricity cost far exceeds the price of the element. On large machines, change elements by intake restriction, not by calendar.
Construction and installation data
| Parameter | Value / note |
|---|---|
| Dimensions | — |
| Construction | Dry pleated cylindrical element |
| Effective filtration area | — |
| Pleat count / pitch | — |
| Mounting interface | Fits into air filter assembly, axially compressed |
| Sealing | Face compression seal (per actual construction) |
On dimensions: this part number belongs to a newer 11-digit series, and no reliable dimensional data is available from public OEM literature or third-party channels. Measure the old part before ordering — outer diameter, inner or mounting bore diameter, and overall height — or send a photo with your measurements for review. Other filter part numbers on the same model do not share the same dimensions; do not carry dimensions across part numbers.
Materials
| Parameter | Value / note |
|---|---|
| Media | Imported wood-pulp filter paper (industry-common US HV or Ahlstrom media) |
| Media weight | Approx. 130 g/m² |
| Inner and outer support | Galvanised steel perforated cage (inner cage plus outer guard) |
| End caps | Metal end caps (galvanised steel) with polyurethane adhesive |
| Seal | Face seal ring (oil-resistant rubber) |
| Bonding layer | Polyurethane (PU) hot-melt adhesive |
Operating tolerances
| Parameter | Value / note |
|---|---|
| Operating temperature | −10 to +100 °C |
| Relative humidity | ≤80% RH, no condensation |
| Burst strength | Media burst strength approx. 200–400 kPa (per ISO 2758 paper burst test) |
| Collapse resistance | Element must withstand machine intake alarm differential without collapsing |
| Special features | No flame-retardant, anti-static or special coating claims for this model |
Service life and maintenance
| Parameter | Value / note |
|---|---|
| Service life | 2000 hours or 3 months, whichever comes first |
| High-dust environments | Follow the intake restriction reading; replace once in the alarm zone |
| Storage shelf life | Approx. 2–3 years (unopened, dry and ventilated conditions) |
Applicable standards
| Item | Detail |
|---|---|
| Product standard | ISO 5011 (intake air filters for engines and compressors — performance testing); evaluated on efficiency, restriction and dust holding capacity |
| Commonly cited test standards | ISO 2941 / 2942 / 2943 / 3723 / 3724 / 3968 |
| Applicability note | 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 Maintenance and Installation Steps
The external filter housing on a large two-stage machine is substantial; allow roughly 30–40 minutes and work in pairs.
Shut down, confirm zero pressure, lock out/tag out
After shutdown, isolate the main power and apply lockout/tagout, then open the receiver drain valve to relieve pressure. Criterion: controller shows zero system pressure and no residual air flow is audible.Verify the part number before starting work
Confirm which position you are replacing before dismantling. Criterion: read the part number on the old element and compare it digit by digit with the part you are installing (never rely on part name or machine model alone). Where a model uses several filter part numbers, fitting the wrong one causes poor sealing or prevents correct seating.Open the air filter housing
Release the housing end-cover clamps or fasteners in a diagonal sequence. Criterion: no cover distortion, no seized clamps. Have someone steady the large cover until the last fastener is released.Remove the old element and inspect its condition
Withdraw the element vertically, using lifting support given its size and weight. Inspect dust distribution and media condition. Criterion: even grey-brown dust loading is normal; oily residue on the surface indicates oil carryover upstream and needs investigation; torn media, debonded end caps or a flattened sealing face require immediate replacement.Clean the housing interior
Wipe the housing walls, base and sealing face with a dry, lint-free cloth. Do not blow compressed air into the housing interior — it drives dust into the intake tract. Criterion: no loose dust on the walls, sealing face flat with no pitting. In humid regions, also check the housing base for condensate.Install the new element and confirm seating
Compare mounting diameter, overall height and seal type against the old part, then fit the element and push it fully home with the sealing face in contact and no trapped material. Criterion: element centred without skew, even compression marks around the seal.Refit the cover and tighten
Tighten clamps or bolts evenly in a diagonal sequence in stages. Criterion: even gap between cover and housing with no visible skew.Start up and verify
Restore power and start the machine; read intake restriction after 5–10 minutes of running. Criterion: restriction within the new-element baseline range and no abnormal whistling at the intake (unusual noise usually means the seal is not compressed or the element is not seated). Record the date, running hours and restriction reading.
Non-negotiable rule: do not start the machine until the element is correctly seated. Running with no element or an uncompressed seal sends unfiltered air straight into the two-stage rotor and can cause irreversible wear in a short time.
Frequently Asked Questions
Which machines use 47742049001?
The Ingersoll Rand MM350-2S two-stage screw compressor — 350 kW, 8.5 bar(g), 64.1 m³/min displacement.
Is this the only air filter part number for the MM350-2S?
No. This model uses several intake filter part numbers with different positions and functions. That is why this page stresses reading the part number on the old element — ordering on machine model alone is the most common error on this type.
How do I confirm which element I need?
Three steps: (1) read the part number from the old element and compare digit by digit; (2) record its position on the machine (which stage, which side); (3) if the old part has been discarded, provide the machine nameplate and filter housing markings and we will cross-check against the machine configuration. Do not judge by appearance alone.
How often should it be replaced?
The recommended interval is 2000 hours or 3 months, whichever comes first. More accurately, follow the intake restriction reading and schedule replacement once it enters the alarm zone. In dusty sites, replace earlier based on restriction.
Can I blow the element clean and reuse it?
No. This is a dry, single-use element designed not to be cleaned. Back-blowing with compressed air only removes surface dust; fine particles trapped in the media depth stay in place, and the air pressure can fracture fibres or distort pleat spacing, creating invisible channels. A cleaned element is "visually clean but functionally failed" — the risk outweighs the benefit.
Why is timely air filter replacement critical on this machine?
The MM350-2S is a 350 kW continuous-duty machine. Each 1 kPa rise in intake restriction adds roughly 1% to energy consumption; from new to heavily clogged, consumption rises by about 6%, and at 8000 running hours per year the electricity cost far exceeds a set of elements. Unfiltered air also contaminates the two-stage rotor, separator element and lubricant. This is one of the clearest return-on-investment service parts available.
What else should be checked during an air filter change?
Intake hoses and clamps (cracks, ageing, looseness), the housing sealing face, the intake restriction indicator (does the needle return correctly), and the oil filter and separator element on the same interval. Bypass leakage is as damaging as running without a filter, so the hose check is not optional.
Is this element in stock and what is the lead time?
Regular stock items ship within 24 hours. Southeast Asia approx. 3–7 days, Middle East approx. 7–10 days, Africa and Latin America approx. 10–18 days, Russia/Belarus approx. 10–15 days. Confirm at the time of enquiry against current stock and sailing schedules.
Is it a genuine part?
47742049001 is an Ingersoll Rand OEM part number. When sourcing, verify the part number itself — the number is the only identity that cannot be confused.
Why are dimensions not listed?
This part number belongs to a newer 11-digit series with no reliable public dimensional data. To avoid supplying wrong dimensions and causing a sourcing error, no estimated values are given here. Measure the old part's outer diameter, mounting bore and overall height before ordering, or contact us for verification support.
Machine Compatibility
This element fits MM-series machines in the Ingersoll Rand SSR two-stage 350 kW platform.
| No. | Model | Nominal power | Discharge pressure | Displacement | Note |
|---|---|---|---|---|---|
| 1 | MM350-2S | 350 kW | 8.5 bar(g) | 64.1 m³/min | Applicable model for this page |
Other pressure ratings on the same platform (for identification and to avoid mis-purchase)
| Model | Discharge pressure | Displacement | Note |
|---|---|---|---|
| ML350-2S | 7.5 bar(g) | 69.2 m³/min | Same power platform, low-pressure version |
| MH350-2S | 10 bar(g) | 59.5 m³/min | Same power platform, high-pressure version |
| MXU350-2S | 14 bar(g) | 50.2 m³/min | Same power platform, extra-high-pressure version |
This model uses more than one intake filter part number
The MM350-2S air filter assembly uses multiple elements according to machine configuration, each with its own part number. This page covers one part number only and makes no fitment claim for the others. Before ordering:
- Preferred: read the part number on the old element and compare digit by digit;
- Alternative: record the element's mounting position (which stage / which side) and provide a nameplate photo; we will cross-check against the machine configuration;
- Fallback: measure the old part's outer diameter, mounting bore and overall height and compare by dimension.
How to read the table
- This page's product corresponds to row 1, MM350-2S.
- If your machine is an ML350-2S, MH350-2S or MXU350-2S, send the nameplate model and we will verify the air filter part number separately.
- Matching machine model does not mean interchangeable elements — the several filter part numbers for one model cannot be substituted for each other.
Related Components
The following intake and lubrication system parts on the MM350-2S share the same service interval or should be inspected at the same time. For specific part numbers, refer to the machine's own parts manual.
| Component | Location | Function | Inspection points |
|---|---|---|---|
| Other intake filter elements for this model | Air filter assembly | Correspond to the model's filter configuration; part numbers differ from this page | Separate by part number when stocking and ordering — never assume interchangeability by machine model |
| Oil filter element | Main oil circuit | Removes wear debris and sludge from lubricant, protecting the two-stage rotor and bearings | Replace on the same interval as the air filter; check the housing sealing face for oil seepage afterwards |
| Separator element | Oil separator tank | Separates oil mist from compressed air and returns oil, controlling discharge oil carryover | Check the oil return line for blockage at the same time (poor return directly causes excess oil carryover) |
| Intake restriction indicator / intake vacuum alarm | Air filter assembly or controller | Indicates element clogging and is the authoritative basis for replacement timing | Check needle return and sensing line for blockage; if failed, revert to a conservative interval |
| Intake hoses and clamps | Between filter assembly and airend intake | Keeps the intake path leak-free with no unfiltered air bypass | Check for cracks, ageing and looseness — bypass leakage is as damaging as no filter |
| Housing sealing face and end cover | Air filter assembly | Ensures reliable sealing once the element is compressed | Check for pitting and corrosion; check the cover for distortion |
| Lubricant | Airend lubrication system | Lubrication and sealing; two-stage machines have demanding oil requirements | Test and replace per machine requirements and interval; avoid mixing grades |
Grouped replacement advice: on large two-stage machines, schedule the air filter, oil filter and separator element into the same shutdown to avoid staggered intervals and repeated downtime. In dusty sites, fit a high-dust pre-cleaner first — pre-cleaner cost is far lower than the main element and it is faster to change.