Question 1

Match the filter to your compressor brand/model, OEM part number, working pressure and operating environment. Provide dimensions or photos if no part number is available — we identify the correct product for you.

Accepted Answer

sales@airpulltech.comThe right filter should match your compressor's brand, model, working pressure, and operating environment. Choosing the correct compatible filter helps maintain stable airflow, improve filtration efficiency, reduce energy consumption, and extend equipment life. If you are unsure of the model, simply provide the part number or equipment information and we will identify the correct product for you.5 Key Pieces of Information for Selection1. Compressor brand & modelThe brand/model nameplate is usually on the side of the machine or inside the electrical cabinet2. OEM part numberThe most precise selection method, e.g., 1622-xxxx, 2901-xxxx, 2906-xxxxFound on the old filter label, in the equipment manual, or in the OEM parts catalogEven for discontinued models, the old part number helps us locate a match quickly3. Working pressure & flow rateDischarge pressure (bar / psi) and capacity (m3/min / CFM) affect filter specification selectionHigh-pressure machines require separators with higher pressure ratings4. Operating environmentHigh-dust environments - choose intake filters with higher dust-holding capacityHigh temperature & humidity - ensure the media meets temperature and moisture resistance requirementsCleanrooms / food & pharma - higher filtration ratings may be required5. Existing filter dimensions (if no part number)Outer diameter x height x inner diameter (mm), plus connection thread specsPhotos of the actual part (one each of front / side / connection end)Selection Points by Filter TypeAir Intake Filter Selection PointsMatching dimensions: outer diameter, height, and connection type (flange / clamp / thread) must be identicalDust-holding capacity: for high-dust environments, prefer designs with more pleats and larger surface areaTemperature range: confirm ambient temperature is within the media's allowable range (typically -40C to +100C)Oil Filter Selection PointsFlow matching: the element's oil throughput must be at least the machine's oil pump flow ratePressure rating: must withstand the system's maximum working pressure plus a safety marginMounting style: spin-on vs. cartridge replaceable-element - keep consistent with the original designAir-Oil Separator Selection PointsSeparation efficiency: determines discharge air oil contentPressure design: must meet the separator tank's working pressureDimensions & connections: outer diameter, height, and center-tube thread must match exactly - otherwise oil bypass occursAir handling capacity: the element's rated capacity must be at least the compressor's actual outputCommon Selection Mistakes & ConsequencesDimensional mismatch - too tight to install / too loose, causing leaks or air bypassRating too coarse - inadequate protection; contaminants enter core componentsRating too fine - unnecessary cost, and higher pressure drop raises energy consumptionInsufficient pressure rating - the element deforms or even bursts under high pressure, causing serious failuresMixing brands - differences in materials and workmanship can cause compatibility issuesNot Sure How to Choose? We Can HelpProvide the part number - we directly match the AIRPULL equivalentProvide the brand & model - we search our database and recommend a fitProvide photos/dimensions - our technical team identifies it manually and advisesSend an old sample - free measurement and production of an exact-match compatibleWhy Buying from a Professional Manufacturer Gives You Peace of MindA complete cross-reference database covering 7,000 OEM part numbersEvery product passes dual dimensional and performance inspection before shipmentWrong selection? We cover returns/exchanges (per agreement) - zero risk to youOne-stop purchasing of all three filters with a unified quality system and clear after-sales accountabilityReady to select?Send your information (part number / brand & model / photos / dimensions) to - sales@airpulltech.com   our technical team will provide a precise selection proposal within 8 hours.

Question 2

The air filter cleans incoming air, the oil filter cleans lubricating oil, and the air-oil separator recovers oil from compressed air. They protect the compressor as one system and should be maintained together.

Accepted Answer

sales@airpulltech.comThe air filter removes dust and particulates from the air entering the compressor; the oil filter removes contaminants from the lubricating oil; the air-oil separator extracts lubricating oil from the compressed air and recovers it before discharge. Working together, they protect the compressor's core components, improve compressed-air quality, and keep the equipment running efficiently.Three-Filter Comparison at a GlanceItemAir Filter (Intake)Oil FilterAir-Oil SeparatorLocationCompressor air inletIn the lubricant circulation lineInside the separator tankWhat it filtersDust and particles from ambient airMetal debris, carbon deposits, and contaminants in the oilOil mist and droplets entrained in compressed airMain functionProtects the airend rotors and bearings from wearProtects oil-circuit components such as bearings, shaft seals, and coolersRecovers lubricant and ensures clean discharge airTypical mediaFilter paper / non-woven / polyester fiberFilter paper + metal mesh supportGlass-fiber composite layers + support layersCompatible interval2,000 h2,000 h4,000 hIf it failsInsufficient intake - higher energy use, lower outputPoor lubrication - more wear, more noiseHigher oil carryover, discharge air oil content exceeds limitsAir Filter in Detail (Air Filter / Intake Filter)Location: mounted at the compressor air inlet - the first line of defense for air entering the machineFunction: traps solid particles such as dust, sand, and fibers from the airWhy it matters: a single tiny grain of sand entering the airend can score the precision rotor surfacesCommon types: panel, cartridge (round/oval), and pleated elementsThe harsher the environment, the more frequent the changes: high-dust settings like mines, cement plants, and woodworking shops need more frequent inspectionOil Filter in Detail (Oil Filter / Oil Filter Element)Location: installed in series in the lubricant circuit, typically after the oil pump and before the bearings/coolerFunction: filters out metal wear particles, carbon deposits, and oxidation products generated during oil circulationWhy it matters: clean lubricant is the compressor's lifeblood - the oil filter is its kidneyCommon forms: spin-on (threaded) and cartridge typesEarly first change: new machines generate more contaminants during break-in; the first change is recommended after 500 operating hoursAir-Oil Separator in Detail (Air-Oil Separator / Separator Element)Location: inside the separator tank - the final checkpoint before compressed air is dischargedFunction: uses centrifugal force, gravity settling, and fine filtration to separate entrained oil mist from compressed air and return it to the oil circuitWhy it matters: directly determines discharge oil content - affecting downstream pneumatic equipment and product qualityCommon construction: outer coalescing layer + inner fine-separation layer of dual- or multi-layer glass-fiber compositeThe most expensive of the three filters - but the cost of extended use far exceeds the price of the element itselfHow the Three Work TogetherAir filter failure - dust enters the airend - accelerates oil contamination - shortens oil filter life - intensifies airend wearOil filter failure - contaminants circulate with the oil - clog the separator's micropores - separation efficiency drops - oil carryover increasesSeparator failure - large amounts of lubricant are carried away by the compressed air - oil consumption spikes - may cause low-oil shutdownConclusion: the three filters are one system - a failure in any link affects the others. Synchronized maintenance is recommended.How to Buy the Right Set of Three FiltersMatch OEM part numbers or AIRPULL cross-reference models - avoid leaks or bypass caused by dimensional mismatchDon't buy on price alone - inferior media may seem fine at first but can collapse or rupture within hoursBuy the complete set from one supplier - consistent quality system and clear accountabilityKeep compatible records - helps trace problem sources and optimize future maintenance intervalsNot sure which filters your equipment needs?Send us your compressor brand and model at  sales@airpulltech.com- we will match a complete three-filter solution for you.

Question 3

Air intake filters: every 2,000 hours (500-1,000 in dusty environments); oil filters: first at 500 hours then every 2,000 hours; air-oil separators: every 4,000 hours. Always follow OEM guidelines.

Accepted Answer

Compatible\u0001P0\u0001 intervals depend on operating hours, environmental conditions, and equipment usage. Regular maintenance helps prevent pressure loss, reduce energy consumption, and avoid unexpected downtime. We always recommend following OEM maintenance guidelines.Recommended Compatible Intervals by Filter TypeAir intake filter (air filter)Standard conditions: 2,000 operating hoursHigh-dust environments (mining, cement, woodworking, etc.): shorten to 500-1,000 hoursRule of thumb: replace when the differential pressure gauge exceeds the limit or visible dust buildup appears - no need to rigidly follow the clockOil filterFirst compatible: after 500 operating hours on new machines (more contaminants during break-in)Subsequent intervals: every 2,000 hours, or with each oil changeAir-oil separator (separator element)Standard interval: 4,000 hoursThe separator is critical to oil carryover and energy consumption - extended use is not recommendedReplace immediately if discharge oil content increases or a differential pressure alarm appearsKey Factors Affecting Compatible IntervalsOperating load factor - 24/7 continuous operation requires more frequent compatible than intermittent useAmbient dust concentration - huge differences between industrial workshops, outdoor job sites, and cleanroomsAmbient humidity & temperature - high humidity and heat accelerate media aging and cloggingLubricant quality - inferior or expired oil accelerates oil filter and separator failureEquipment age - older compressors wear more and demand more from filtersPractical Maintenance StrategiesWhichever-comes-first rule - whether the time or the pressure limit arrives first, act on itKeep a maintenance log - record each compatible date, operating hours, and brand/model to build historical dataStock up in advance - purchase ahead based on annual consumption to avoid extended operation due to stockoutsReplace all three together - swap the air filter + oil filter + separator in one maintenance stop, saving labor and downtimeRisks of Extended UseEnergy consumption rises 5%-15% - wasted electricity costsDegraded compressed-air quality contaminates downstream equipment and processesAccelerated wear on core components (bearings, rotors) - repair costs far exceed filter costsSudden failures cause unplanned downtime with incalculable production lossesWhat AIRPULL Can Do for YouComplete three-filter packages - one-stop purchasingPersonalized compatible plans based on your equipment models and usage scenariosDistributor pricing on bulk orders to lower long-term maintenance costsScheduled reminder service (per agreement) so you never miss a compatibleNeed a \u0001P1\u0001 plan for your equipment?Send your compressor brand/model and operating conditions to  sales@airpulltech.com - we will provide detailed maintenance recommendations and a quotation.

Question 4

Key symptoms: increased differential pressure, reduced airflow, higher oil carryover, rising energy consumption and abnormal operation. Replace promptly based on gauge readings, controller alarms and physical inspection.

Accepted Answer

sales@airpulltech.comCommon symptoms include increased differential pressure, reduced airflow, higher oil carryover, rising energy consumption, and abnormal compressor operation. Timely \u0001P0\u0001 helps protect your equipment and maintain stable production.Typical Symptoms of a Clogged Air Intake FilterIncreased intake vacuum - differential pressure gauge reading exceeds the compatible thresholdHigher discharge temperature - insufficient intake raises the compression ratio, noticeably increasing outlet temperatureRising energy consumption - higher motor current for the same air output; abnormal electricity billsReduced air output - the machine struggles to keep up with the load; insufficient pressure at end-use pointsFilter appearance - visible dust accumulation, oil contamination, fiber damage, or end-cap deformationTypical Symptoms of a Clogged Oil FilterIncreased oil-circuit differential pressure - pressure drop across the oil filter exceeds the standard value (refer to the equipment manual)Elevated oil temperature - poor oil circulation leads to inadequate heat dissipationIncreased oil carryover - declining separation efficiency causes abnormally high oil consumptionLouder airend noise - insufficient lubrication causes rotor/bearing wear and abnormal soundsOil darkens faster - failed media lets contaminants recirculate, rapidly degrading the lubricantTypical Symptoms of a Clogged Air-Oil SeparatorExcessive separator tank differential pressure - overpressure triggers the safety valve or a shutdown alarmHigh oil content in discharge air - visible oil accumulation on compressed-air lines, receiver tanks, or pneumatic equipmentFrequent oil top-ups - oil consumption far exceeds historical levels within the normal intervalDeformed or damaged separator element - bulging end caps, collapsed media layers, aged sealing ringsHow to Judge from Instrument DataDifferential pressure gauge - the most direct indicator; when the limit is exceededController alarms - most modern compressors automatically prompt a \u0001P1\u0001 when differential pressure exceeds the limitOperating parameter trends - track historical current, temperature, and pressure changes; abnormal inflection points often mark the end of filter lifeMaintenance timer - inspect regularly per the manufacturer's recommended operating hoursPhysical Inspection MethodsVisual inspection - remove the filter and check color, integrity, and contamination levelWeight comparison - weigh new vs. old filters; when the weight gain exceeds the recommended limitStructural check - confirm whether pleats have collapsed, end caps are loose, or sealing rings have hardenedDestructive sampling (optional) - cut open an old element to analyze internal clogging distribution and media agingConsequences of Delayed CompatibleEnergy waste - a clogged filter increases system resistance and adds unnecessary electricity costsEquipment damage - chain failures such as bearing wear, rotor scoring, and oil-circuit blockageProduct quality risk - oily/dusty compressed air contaminates production processes (painting, food, electronics, etc.)Unplanned downtime - sudden failures interrupt production lines, costing far more than the filter itselfCompatible RecommendationsFollow OEM-recommended intervals, shortened appropriately for actual operating conditionsHigh-dust / high-humidity / high-temperature environments require more frequent inspectionInspect wear parts such as gaskets and O-rings at the same time as compatibleUse AIRPULL high-quality compatible filters for stable performance and better valueNot sure whether your filter needs compatible?Send the equipment model, current operating parameters, and filter photos to sales@airpulltech.com - our technical team will provide diagnostic advice.

Question 5

Yes. From OEM part numbers, dimensional data, drawings or physical samples we manufacture compatible filters for discontinued models via reverse engineering, with prototypes typically in 3-7 working days.

Accepted Answer

sales@airpulltech.comYes. Based on OEM part numbers, dimensional data, technical drawings, or physical samples, we can manufacture compatible filters for discontinued or hard-to-source compressor models.How We Handle Discontinued-Model Requests1. Information gathering - you provide any of the following: OEM part number, photos/physical sample of the old filter, dimensional data, or drawings.2. Reverse engineering - our technical team performs dimensional measurement, material analysis, and structural teardown of the sample.3. Solution confirmation - we issue a compatible proposal with clear key-parameter comparisons and performance commitments.4. Sample validation - first-article samples are produced for your on-machine testing.5. Bulk delivery - stable supply begins once testing is passed.Information You Can Provide (Any One Is Enough)OEM part number - even if discontinued, our historical database may still have a recordCompressor brand + model - e.g., Sullair LS20S-100H or Fusheng SA37APhysical sample of the old filter - send us an old part for reverse engineering (most recommended)Dimensional measurements - outer diameter x height x inner diameter, connection thread specs, and sealing surface typeTechnical drawings - if you have original engineering drawings or manual screenshotsCoverage of Common Discontinued ModelsLegacy European & American models - e.g., early Atlas Copco GT/GA series, Ingersoll Rand SSR/T seriesDiscontinued Japanese & Korean brands - e.g., Hitachi OSP series, Kobelco KNW seriesOlder Chinese equipment - e.g., early Kaishan / Fusheng / Hanbell modelsNiche / imported second-hand equipment - custom production is possible as long as a sample or drawing can be providedWhy Choose AIRPULL for Discontinued compatibleStrong reverse-engineering capability - full sample measurement and material analysis capacityTraceable materials - filter media equal to or better than OEMFast turnaround - typically only 3-7 working days from receiving the sample to delivering the prototypePerformance guarantee - compatible filtration efficiency and service life not lower than OEM standardsNotesFor first-time cooperation, we recommend ordering samples for actual on-machine validation firstSome extremely rare models may require new tooling; costs and timelines are evaluated per projectIf the machine has exceeded its design life, we recommend evaluating the overall unit condition in parallel to ensure safe operationNeed filters for a discontinued model?Send whatever information you have (even just a photo) to  sales@airpulltech.com- we will assess feasibility and propose a solution.

Question 6

A professional manufacturer delivers consistent ISO 9001 quality, 70-80% cost savings vs OEM parts, fast production and delivery, reliable technical support and long-term stable supply, backed by 30 years of experience.

Accepted Answer

sales@airpulltech.comA professional manufacturer delivers consistent product quality, better cost control, faster production response, and reliable technical support - while ensuring uniform filtration performance and long-term, stable supply for distributors and industrial customers.5 Core Values of Choosing a Professional Manufacturer1. Consistent Product QualityA robust quality management system (ISO 9001) with end-to-end control from raw materials to finished productsEvery batch is inspected before shipment, with documented key metrics such as filtration efficiency, pressure drop, and pressure resistanceHigh batch-to-batch consistency, avoiding customer complaints and returns caused by quality fluctuations2. Better Cost ControlDirect supply from the source factory, eliminating middleman markupsScaled production lowers unit costs - better pricing for larger volumesLong-term cooperation can lock in price ranges to hedge against raw material increases (per agreement)Typically saves 70%-80% in procurement costs compared to OEM parts3. Faster Production & DeliveryFlexible production scheduling with priority slots for urgent ordersAmple stock of standard models, shipping within 2-3 daysCustom items move from sampling to mass production faster than the industry averageMultiple shipping options (ocean / air / rail / express) matched to your needs4. Reliable Technical SupportApplication engineer team assists with selection, fault diagnosis, and technical solution optimizationComplete documentation package: technical manuals, installation guides, and maintenance recommendationsOEM cross-reference database covering 7,000+ major-brand part numbersQuality issues answered within 2 hours, closed out with 8D reports5. Long-Term Stable SupplyIn-house production lines with no outsourcing dependency - controllable capacity and reliable lead timesDiversified raw material supply chain with low single-supplier riskReserved capacity quotas for long-term partners - no stockouts in peak seasonsAnnual framework agreements and rolling-order models supported to simplify procurementCommon Risks of Unprofessional ChannelsInconsistent quality - no systematic control; large batch-to-batch variationNo after-sales protection - no one to turn to when problems arise; returns are difficultUncontrollable lead times - multiple handoffs, outdated information, frequent delaysTechnical gaps - unable to provide selection support or application guidanceIP risks - potential infringement or compliance issuesAIRPULL's Credentials as a Professional Manufacturer30 years focused on air compressor filter R&D and manufacturingISO 9001 quality management system certified15 automated / semi-automated professional production linesProducts exported to50+ countries and regionsWant to learn how AIRPULL can become your long-term partner?Contact our sales team at sales@airpulltech.com - we will provide a customized cooperation plan based on your business needs.

Question 7

Yes. We offer OEM (private-label) and ODM (joint development) services: custom dimensions, filter media, labeling, packaging, brand identity and technical development, with NDA-protected confidentiality.

Accepted Answer

sales@airpulltech.comYes. We provide OEM and ODM services, including customized dimensions, filter media, product labeling, packaging, brand identity, and technical development. Whether you are a distributor, wholesaler, or equipment manufacturer, we can meet your business needs.OEM Services (Private-Label Manufacturing)Built to your specifications - provide drawings/samples/OEM part numbers; we manufacture to the same or better standardsBrand customization - your brand logo, model naming, and packaging design printed on the productsMaterial options - multiple filter media choices: glass fiber / polyester / non-woven / composite materialsMinimum order quantity - standard OEM order MOQ is 100 piecesODM Services (Joint Development)Development from scratch - we assist with product design based on your application scenarios and performance requirementsTechnical collaboration - application engineers participate in requirement analysis, design reviews, and sample validationIP protection - NDAs signed; your technical documentation is kept strictly confidentialTooling & fixtures - new tooling costs and timelines evaluated per projectWhat We Can CustomizeDimensions - outer diameter, height, inner diameter, connection thread types (metric / imperial / special)Filtration rating - full range from coarse to high efficiency (1 um - 50 um)End-cap materials - steel / stainless steel / aluminum / plastic / paperboard, etc.Sealing methods - rubber gaskets / PU foam adhesive / silicone sealing stripsLabels & packaging - color-printed labels, individual bags/boxes/cartons, export wooden cratesCertification marks - CE / RoHS / ISO and other compliance marks printed on requestCooperation Process1. You submit a requirements document (drawings/samples/spec sheet + target quantity and lead time).2. We conduct a feasibility assessment and issue a preliminary proposal and quotation.3. Upon mutual confirmation, both parties sign an NDA and manufacturing agreement.4. Tooling / sampling (ODM projects include prototype design and testing).5. First Article Inspection (FAI) - mass production begins after you approve the samples.6. Bulk delivery with ongoing quality tracking.Who We ServeAir compressor OEMs - manufacturers needing an OEM supplier for matching original filtersFilter brand owners - brands without manufacturing capability needing a stable contract manufacturerIndustrial trading companies - building their own branded filter product linesAftermarket service providers - delivering customized solutions for customers in specific industriesOur Strengths30 years of filter manufacturing experience with 15 specialized production linesFlexible production scheduling that accommodates small-batch, multi-variety ordersRobust quality system (ISO 9001); outgoing inspection reports shipped with every batchExtensive export experience; familiar with import standards and certification requirements worldwideConfidentiality & Intellectual PropertyAll OEM / ODM projects are covered by signed NDAsCustomer design files, formulation parameters, and client lists are never disclosedWhere patents or proprietary technologies are involved, ownership terms can be specified in the contractInterested in OEM / ODM cooperation?Send a summary of your requirements to  sales@airpulltech.com- our business team will assign a dedicated contact within 2 business days.

Question 8

Every filter passes IQC, IPQC, FQC/OQC and pre-shipment inspection under an ISO 9001 quality system, with digital traceability to production date, operator, material batch and inspection records.

Accepted Answer

sales@airpulltech.comFrom raw material inspection to production, testing, and final packaging, every filter goes through multiple quality inspection steps. This ensures stable product performance, precise dimensions, and reliable filtration efficiency.End-to-End Quality Control System1. Incoming Quality Control (IQC)Each batch of filter media is sampled for appearance, thickness, air permeability, and strength upon arrivalNon-conforming materials are rejected outright, with supplier traceability and corrective action requiredRaw material samples are retained for 6 months to facilitate future quality traceability2. In-Process Quality Control (IPQC)Dedicated QC checkpoints at key processes (pleating / gluing / end-cap assembly / welding)First-article inspection: required before each shift/batch begins productionReal-time monitoring of process parameters: temperature, pressure, and speed all kept within standard ranges3. Final / Outgoing Quality Control (FQC / OQC)Appearance check: no burrs, no deformation, clear markingsDimensional measurement: outer diameter, height, and inner diameter tolerances controlled within +/-2 mmSealing test: pressure testing to ensure zero leakageFiltration efficiency testing: efficiency and dust-holding capacity tested per standards4. Packaging & Pre-Shipment Final InspectionPackaging method confirmed (individual / bagged / boxed / cartoned) per order requirementsMoisture-proof and shock-proof protection in placeClear carton labels: product name, quantity, batch number, destinationQuality Certifications & SystemsISO 9001 quality management system certifiedRegular third-party audits and customer factory inspectionsContinuous improvement mechanism: quality issues closed out with 8D reportsDigital Quality TraceabilityEvery filter is traceable to: production date, operator ID, raw material batch, and inspection recordsQC data is logged into the system, supporting long-term trend analysis and anomaly alertsCustomer-reported quality issues trigger an investigation and solution proposal within 24 hoursOur Quality CommitmentsFiltration efficiency as promised - tested efficiency meets or exceeds stated values; no inflated specsService life guarantee - matches or exceeds OEM part life under normal operating conditionsAfter-sales guarantee - unconditional returns/exchanges for quality issues (per agreement terms)How We Continuously Improve QualityAnnual equipment upgrade program: introducing more precise automated production lines and testing instrumentsJoint development relationships with upstream material suppliers to optimize filter media performanceCollecting end-customer feedback to drive iterative product design improvementsQuestions about AIRPULL's quality control?Contact our quality team at  sales@airpulltech.com- we can provide detailed quality reports and arrange factory visits.

Question 9

Yes. Provide the OEM part number, compressor model, dimensions or photos, and our technical team recommends the correct compatible filter plus alternatives within 24 hours, backed by a 7,000-part cross-reference database.

Accepted Answer

sales@airpulltech.comYes. Simply provide the OEM part number, compressor model, dimensions, or product photos, and our technical team will recommend the correct compatible filter along with suitable alternatives.You Can Provide Information in Any of the Following WaysOEM part number - The fastest and most accurate method (e.g., 1622-xxxx, 2901-xxxx)Photos of the actual filter - one each of the front, side, and connection end, clearly showing the shape and markingsDimension data - outer diameter x height x inner diameter (in mm), plus connection thread specificationsPhoto of the old part's nameplate - if the old filter still has a label or stamped informationOur Identification Process1. You submit any one or more of the above via email / online form / WeChat.2. Our technical team completes database matching and manual verification within 24 hours.3. We recommend a primary compatible model plus 1-2 alternatives (if available).4. A technical comparison chart is included: OEM vs. AIRPULL key parameters.5. Once confirmed, samples or bulk quotations can be arranged immediately.Brand CoverageMajor European & American brands: e.g., Atlas Copco / Ingersoll Rand / Sullair / Kaeser / Gardner DenverJapanese & Korean brands: e.g., Hitachi / Kobelco / DoosanChinese brands: e.g., Kaishan / Fusheng / Hanbell / etc.Other brands: If your equipment is not listed above, provide photos or the nameplate and we will match them one by oneOur cross-reference database currently covers 7,000 OEM part numbers and is continuously updated.Why Choose AIRPULL Compatible FiltersFully compatible - dimensions, filtration rating, and pressure rating identical to OEM partsReliable performance - made with imported glass fiber / polyester filter media, with efficiency meeting or exceeding OEM standardsCost advantage - significant savings compared to OEM parts, with even better pricing for volume ordersStable supply - not affected by single-brand supply chain fluctuations, with controllable lead timesTechnical guarantee - incorrect match? We cover the return/exchange risk (per agreement)Handling Special CasesModel cannot be determined - we accept old-part samples for reverse engineering and analysisDiscontinued/rare models - custom production based on actual dimensions, with small-batch solutions availableMixed fleet scenarios - we help consolidate a complete site filter list for unified procurement, reducing management costsNeed to identify a filter model?Send whatever information you have (part number / photos / dimensions) to  sales@airpulltech.com and we will provide the matching result.

Question 10

Yes. Samples are available for most standard models (usually 10+ pieces) to verify quality, compatibility and performance before bulk ordering. Sample costs may be credited against the first bulk order per agreement.

Accepted Answer

sales@airpulltech.comYes. Samples are available for most standard models, allowing customers to verify product quality, compatibility, and performance before placing a bulk order.Sample PolicyScope: The vast majority of standard models (including air intake filters, oil filters, air-oil separators, etc.)Sample quantity per request: Usually 10+ pieces per model, depending on the modelSample cost: By negotiated priceFreight: Borne by the customerHow to Request Samples1. Tell us the OEM part number or model name you need, along with the target application.2. After confirming stock and specifications, we issue a sample quotation.3. Once you confirm and pay, we arrange shipment.4. Test and evaluate the samples upon receipt; once confirmed, you can proceed to bulk purchasing.What Samples Help You DoQuality verification - Inspect materials, workmanship, sealing, and appearance firsthandCompatibility testing - Install on actual equipment to confirm dimensions, connections, and operational fitPerformance comparison - Benchmark filtration efficiency, pressure drop, and service life against OEM parts or competitorsCustomer/end-user approval - Submit samples to your end customers or technical team for reviewFrom Samples to Bulk OrdersOnce samples pass testing, we help you determine bulk MOQ, lead time, and pricing tiersSample costs may be credited against the first bulk order (per agreement)Stable sample support and technical liaison for long-term partnersSpecial NotesSamples for customized / non-standard models may require an additional 7-day production cyclePlease let us know in advance if third-party test reports or material certificates are requiredNeed samples?Send the part numbers, quantities, and delivery address to sales@airpulltech.com - we will reply within 1 business day.

Question 11

Requesting a quote is free and fast: submit your requirements and receive a written quotation with unit price, lead time, shipping options and Incoterms (EXW/FOB/CIF/DDP). Quote validity is 15 days.

Accepted Answer

sales@airpulltech.comRequesting a quote is free and fast. Send us your requirements, and our sales team will provide a detailed quotation - including unit price, lead time, shipping options, and applicable Incoterms.How to Request1. Submit your inquiry via the contact form, email, or online chat.2. We verify the specifications and match them to stock or production items.3. You receive a written quotation (pricing, lead time, and shipping terms).4. Once the order is confirmed, we proceed to PI/contract signing and production scheduling.Information That Helps Us Quote AccuratelyOEM part number(s) - or provide a sample / drawing / clear photo for cross-referencingRequired quantity and order frequency (one-time vs. long-term / annual)Destination country and port (for shipping and Incoterms confirmation)Known technical specs: filtration rating, dimensions, material, and connection typeTarget delivery date (so we can recommend the optimal production + shipping combination)Pricing & TermsDiscounts available for large volumes and long-term partnersMulti-tier pricing for distributor / wholesale quantitiesQuotation validity: 15 days (subject to raw material price fluctuations)Incoterms supported: EXW, FOB, CIF, DDP (by agreement)Why Our Quotes Are Easy to Work WithClear, itemized breakdown - no hidden feesCross-reference support for major brands (Atlas Copco / Ingersoll Rand / Sullair / Fusheng / etc.)Fast response with direct access to application engineersReady to get a quote?Send your part numbers and quantities to sales@airpulltech.com, or use the inquiry form on our website - we typically respond within 1 business day.

Question 12

Standard stock models ship within 2-7 working days; non-stock standard items 7-15 days; customized/OEM items 10-15 days; large container orders 15-20 days. Exact lead time is confirmed within 24 hours of ordering.

Accepted Answer

sales@airpulltech.comStandard models are usually in stock and ship within 2-7 days. Customized products and bulk orders are scheduled according to production capacity, ensuring reliable and timely delivery.Lead Time by Product TypeStandard / stock models (common OEM cross-reference items)2-7 working days - shipped from stockCovers 1,000 high-demand part numbers kept in stock year-roundNon-stock standard models (regular catalog items)7-15 working days - production scheduled upon order confirmationPriority scheduling when raw materials are availableCustomized / OEM-specific items10-15 working days - including tooling and samplingFirst-time cooperation requires additional time for sample approvalLarge-volume container orders15-20 working days - phased production based on capacity with full progress trackingPartial shipments can be arranged, with the first batch prioritizedKey Factors Affecting Lead TimeOrder quantity and SKU count - more SKUs mean longer changeover timesCurrent factory capacity and order backlog - peak seasons (e.g., Q4) may take slightly longer than off-seasonRaw material lead times - special filter media may require additional procurement timeCustomization complexity - the more special the dimensions/materials/packaging, the longer the preparationHow We Ensure On-Time DeliveryConfirmation upon ordering - exact lead time confirmed within 24 hours of receiving your orderMilestone updates - raw materials ready - production started - QC passed - packed and shipped; you are notified at every stepTrackable progress - real-time order tracking via our online system or dedicated customer serviceNeed an accurate lead-time estimate?Send the part numbers, quantity, and target delivery date to sales@airpulltech.com - we will give you a clear answer within 8 hours.

Question 13

We support ocean freight (20-45 days), air freight (5-10 days), rail (25-40 days) and international express (15-30 days via DHL/FedEx/UPS/TNT). The best method is matched to order quantity, urgency, destination and budget.

Accepted Answer

sales@airpulltech.comWe support ocean freight, air freight, rail transportation, and international express services. The shipping method is selected based on delivery time, order quantity, and customer preferences.Shipping Method DetailsOcean Freight: Best for large-volume orders (FCL or LCL). Typical transit time: 20-45 days depending on the destination port - the most cost-effective option for bulk purchases.Air Freight: Suitable for urgent orders or smaller quantities with faster delivery. Typical transit time: 5-10 days to major airports worldwide.Rail Transportation: Suitable for landlocked regions and inland destinations (e.g., Central Asia, or Europe via the China-Europe Railway Express). Transit time: 25-40 days.International Express: Door-to-door service via DHL / FedEx / UPS / TNT, ideal for samples and small parcels. Transit time: 15-30 days.How We Match the Best Shipping Method for YouOrder quantity: Full container loads - ocean / rail; samples - international expressUrgency: Rush orders - air / express; regular orders - oceanDestination: Coastal port cities - ocean; inland regions - rail / airBudget: We recommend the most cost-effective option that meets your delivery deadlineAdditional NotesA tracking number is provided once your order shipsIncoterms available: EXW, FOB, CIF, DDP (depending on the destination country)For special packaging requirements (e.g., palletizing, wooden crates), please specify when placing your orderNeed shipping details for your country?Contact us at sales@airpulltech.com- our logistics team will provide a tailored quote within 1 business day.

Question 14

Filters ship in export-standard 5-ply cartons with PE-bag inner packaging, EPE foam cushioning, and palletized loading for containers. Vacuum-compression, anti-rust, desiccant and wooden-crate options are available on request.

Accepted Answer

sales@airpulltech.comWe pack filters in export-standard cartons with protective materials to effectively prevent moisture, dust ingress, vibration, and impact during transportation. Customized packaging solutions are also available upon request.sales@airpulltech.comStandard Export PackagingIndividual Filter Packaging (Inner Packaging)Each filter is individually sealed in a PE plastic bag for moisture and dust protectionA product label is affixed to each bag: product name, model, quantity, batch number, and production dateDeformable products such as air intake filters receive additional protection with bubble wrap / EPE foamBulk Carton Packing (Outer Packaging)5-ply corrugated cartons that meet international shipping standardsInternal cushioning: EPE foam dividers / foam inserts secure the products and prevent movementEach carton is kept within 30–50 kg for easy handling and loadingCarton exterior markings: product name, quantity, gross/net weight, dimensions, destination, and shipping marks (MADE IN CHINA)Palletizing (Full Container / Bulk Shipments)Cartons are neatly stacked on standard export wooden palletsSecured with stretch film wrapping, with corner protectors on all four corners to prevent impact damageTotal pallet height does not exceed 2.2 m (or per customer requirements)Stacking patterns can be optimized for FCL shipments to maximize space utilizationSpecial Protection Options (Available on Request)Vacuum-compression packaging — Reduces volume and lowers ocean freight costsAnti-rust treatment — Metal end-cap products are sprayed with anti-rust oil and wrapped in VCI paperDesiccant — Industrial desiccant placed inside cartons; ideal for high-humidity destination ports or long-term storageHumidity indicator card — Allows the consignee to easily check for moisture exposure during transitWooden crate reinforcement — Fragile or overweight products are packed in plywood or fumigated solid-wood cratesCustomized Packaging ServicesCustomer-branded logos, barcodes, and QR codes can be printedLabels customized to your specified format and language(s)Special box styles, opening methods, and internal divider designs are all negotiableCustom packaging may incur one-time tooling or design fees (depending on complexity)Packaging Quality AssuranceAll packaging materials pass factory inspection to ensure strength and environmental complianceThe packing process is covered by IPQC patrol inspections to eliminate missing or incorrect itemsPackaging integrity is sample-checked before shipmentIf transit damage is caused by packaging issues, we take responsibility for compatible (per agreement)Recommended Packaging by Shipping ScenarioShipping MethodRecommended PackagingNotesOcean (LCL)Standard export carton + palletProtects against repeated handlingOcean (FCL)Standard export carton + palletizedSecure stacking is sufficientAir freightLightweight packaging + compact stackingControls the volume-to-weight ratioInternational express (DHL/UPS)Reinforced small cartons + bubble wrapWithstands sorting and tossingRail (China-Europe Express)Reinforced shock-resistant packagingWithstands long-distance vibrationHave special packaging requirements?Let our sales team know when placing your order: sales@airpulltech.com . We will recommend the most suitable packaging solution based on your shipping method and destination.

Question 15

Simply contact our sales team. AIRPULL offers competitive factory pricing, stable production capacity, OEM/ODM support and professional after-sales service. Annual volume of USD 150,000 or above is generally expected (negotiable), with a clear 5-step onboarding process.

Accepted Answer

sales@airpulltech.comIf you are looking for a reliable air compressor filter manufacturer, simply contact our sales team. We offer competitive pricing, stable production capacity, OEM and ODM manufacturing support, and professional after-sales service to help our partners grow their business.Why Partner with AIRPULLReliable manufacturing — 30 years focused on air compressor filters, 15 professional production linesCompetitive pricing — Direct factory supply with multi-tier distributor discounts; better prices for larger volumesStable production capacity — Our own manufacturing base, unaffected by outsourcing fluctuations, with controllable lead timesOEM / ODM support — Both private-label production and joint development are available (see our OEM/ODM service page)Professional after-sales service — One-stop support covering technical assistance, quality traceability, and return/exchange guaranteesPartnership Process1. Contact us — Reach our sales team via the website form, email, or phone.2. Qualification review — Provide your company profile, target market, and product categories; we will conduct a preliminary review.3. Terms discussion — Define the cooperation region, product scope, MOQ, and pricing tiers.4. Sign the agreement — Clarify both parties' rights and responsibilities, exclusivity terms (if applicable), and the long-term cooperation framework.5. Onboarding support — Receive product documentation, technical training, marketing materials, and sample support.What We Look For in a PartnerAn established business presence in the compressed air, filtration, or industrial parts sectorLocal warehousing capability and an after-sales service networkA commitment to long-term cooperation and willingness to invest together in market developmentAnnual purchase volume of USD 150,000 in filters or above (negotiable)Partner BenefitsComplete product technical package: datasheets, cross-reference charts, and installation guidesCo-branded marketing materials: product photos, promotional copy, and video assetsDirect access to application engineers to help resolve end customers' technical issuesPriority access to new products and reserved production capacity during peak seasonsInterested in becoming an AIRPULL distribution partner?Send us your company profile and intentions, sales@airpulltech.com and we will assign a dedicated contact within 2 business days.

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