{"product_id":"compressore-senza-olio-bernardo-acpro","title":"Bernardo Oil-free Air Compressor AC\/PRO\/500\/20V\/F\/W","description":"\u003cp\u003e\u003cstrong\u003eBernardo AC\/PRO\/500\/20V\/F\/W Oil-Free Air Compressor – 1.8 kW Motor, 20 L Tank\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe Bernardo AC\/PRO\/500\/20 compressor represents a balanced solution between portability and capacity for artisan workshops, light carpentry, and temporary construction sites where single-phase 220V power is available. The oil-free system eliminates the need for pre-heating, oil condensate drainage, and compressed air filtration, reducing the complexity of routine maintenance compared to traditional oil compressors. This makes the machine ideal for those who need clean air for painting, blowing, and pneumatic air tools (drills, grinders) without additional pre-drying.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1.8 kW single-phase motor develops enough power to generate a free-air delivery of 460 l\/min: this volume allows simultaneous power supply to 2-3 light pneumatic tools (drills up to 0.5 kW, grinders up to 0.75 kW). The 20-liter tank accumulates compressed air, leveling consumption peaks and reducing motor start cycles (less wear). The maximum pressure of 8 bar is standard for professional pneumatic tools. The noise level of 75 dB(A) is low for a workshop environment with multiple operators.\u003c\/p\u003e\n\u003ch2\u003eWho chooses it in Italy\u003c\/h2\u003e\n\u003cp\u003eJoiners and carpenters with a fixed workshop prefer it for its versatility in powering drills, grinders, and pneumatic sanders without the need for cylinders. Painting and restoration artisans request it for clean air without oil contamination (critical for painted finishes). Temporary construction sites use it as a central power supply for pneumatic tools on multiple work fronts simultaneously. Window and door installers require an oil-free compressor for cleaning aluminum profiles before assembly (oil damages anodization). In the Krollit catalog, it represents the compromise for those who need medium capacity without the complexity of oil maintenance.\u003c\/p\u003e\n\u003ch2\u003eWho is the Bernardo AC\/PRO\/500\/20 compressor suitable for?\u003c\/h2\u003e\n\u003ctable style=\"width: 99.915%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 21.2406%;\"\u003eProfile\u003c\/th\u003e\n\u003cth style=\"width: 14.9176%;\"\u003eSuitable?\u003c\/th\u003e\n\u003cth style=\"width: 63.2046%;\"\u003eReason\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.2406%;\"\u003eArtisan joiner \/ light carpentry\u003c\/td\u003e\n\u003ctd style=\"width: 14.9176%;\"\u003e\u003cstrong\u003eIdeal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.2046%;\"\u003e460 l\/min flow rate powers 2-3 light pneumatic tools simultaneously. Oil-free system simplifies maintenance. 20 L tank reduces motor start cycles. 34 kg weight manageable for a fixed workshop.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.2406%;\"\u003eTemporary construction site \/ window and door installer\u003c\/td\u003e\n\u003ctd style=\"width: 14.9176%;\"\u003e\u003cstrong\u003eIdeal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.2046%;\"\u003eClean, oil-free air protects paintwork and aluminum profiles. Sufficient flow rate for pneumatic tools on multiple fronts. 75 dB noise level contained for multi-operator environments. 8 bar pressure standard for nail guns and silicone guns.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.2406%;\"\u003eMechanical \/ industrial workshop with \u0026gt;5 tools\u003c\/td\u003e\n\u003ctd style=\"width: 14.9176%;\"\u003e\u003cstrong\u003eAdequate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.2046%;\"\u003e460 l\/min flow rate is a limit for simultaneous consumption of \u0026gt;3 heavy tools (air blowers, orbital sanders 1+ kW). For higher volumes, consider a 50-100 L compressor with a 3-5 kW motor. 8 bar pressure is sufficient but not for specialized tools requiring 10-12 bar.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eNot suitable for:\u003c\/strong\u003e Continuous industrial use 40+ hours\/week without motor change (machine sized for intermittent use). Heavy pneumatic tools \u0026gt;1.5 kW simultaneously (insufficient flow rate, risk of pressure drop). Mobile transport on a construction site without fixed connection (34 kg weight is manual limit).\u003c\/p\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ch3\u003eMotor and power supply\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor type\u003c\/td\u003e\n\u003ctd\u003eSingle-phase asynchronous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power\u003c\/td\u003e\n\u003ctd\u003e1.8 kW (2.4 HP\/PS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhases\u003c\/td\u003e\n\u003ctd\u003eSingle-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent draw\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor protection\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor speed\u003c\/td\u003e\n\u003ctd\u003e2,850 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStart-up\u003c\/td\u003e\n\u003ctd\u003eDirect (no declared soft-start)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation class\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eTank and compression capacity\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank capacity\u003c\/td\u003e\n\u003ctd\u003e20 liters (horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum pressure\u003c\/td\u003e\n\u003ctd\u003e8 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended operating pressure\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer — typically 6-8 bar for standard pneumatic tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree air delivery (FAD)\u003c\/td\u003e\n\u003ctd\u003e460 l\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir flow at load (8 bar)\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety valve\u003c\/td\u003e\n\u003ctd\u003eYes (integrated in the tank)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure gauge\u003c\/td\u003e\n\u003ctd\u003eYes, integrated analog\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eCompressor and cylinder specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor type\u003c\/td\u003e\n\u003ctd\u003eOil-free reciprocating piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of cylinders\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of compression stages\u003c\/td\u003e\n\u003ctd\u003e1 stage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder diameter\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston stroke\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil-free system\u003c\/td\u003e\n\u003ctd\u003eYes — reduces compressed air contamination and maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir filter\u003c\/td\u003e\n\u003ctd\u003eIntegrated (specifications not declared)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eConstruction features\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank positioning\u003c\/td\u003e\n\u003ctd\u003eHorizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank material\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosion protection\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir outlet connectors\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer — typically standard 1\/4\" pneumatic fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondensate drainage\u003c\/td\u003e\n\u003ctd\u003eIntegrated manual valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure regulator\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eDimensions and weight\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e420 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e820 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross weight (with packaging)\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloor space\u003c\/td\u003e\n\u003ctd\u003e~500 × 420 mm (horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eAcoustic performance\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise (sound pressure)\u003c\/td\u003e\n\u003ctd\u003e75 dB(A) at 1 meter distance — estimated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise (sound power LWA)\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer — estimated 82-85 dB(A) for 1.8 kW motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eProtection and compliance\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE marking\u003c\/td\u003e\n\u003ctd\u003eNot declared by manufacturer — presumably yes for EU machine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplied standards\u003c\/td\u003e\n\u003ctd\u003eEN 286 (for pressure vessels) — not declared by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e24 months from date of purchase (standard Bernardo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\u003ctd\u003eAustria\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\n\u003cbr\u003eStandard equipment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAC\/PRO\/500\/20 air compressor assembled and ready for use\u003c\/li\u003e\n\u003cli\u003e20-liter horizontal tank with integrated safety valve\u003c\/li\u003e\n\u003cli\u003e1.8 kW single-phase motor mounted\u003c\/li\u003e\n\u003cli\u003eIntegrated analog pressure gauge\u003c\/li\u003e\n\u003cli\u003eManual condensate drainage valve\u003c\/li\u003e\n\u003cli\u003eUser manual in Italian and German\u003c\/li\u003e\n\u003cli\u003eTechnical data sheet with maintenance instructions\u003c\/li\u003e\n\u003cli\u003eCE declaration of conformity (if included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot included\u003c\/strong\u003e: compressed air hose, pneumatic fittings, pressure regulator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow many pneumatic tools can I connect simultaneously to the compressor?\u003c\/h3\u003e\n\u003cp\u003eDepends on tool power. 460 l\/min flow rate allows powering 2-3 light tools simultaneously (drills 0.3-0.5 kW, grinders 0.5-0.75 kW). For 4+ tools or heavy tools (sanders \u0026gt;1 kW), the flow rate becomes insufficient = pressure drop, reduced performance. Recommended to measure the consumption of specific tools.\u003c\/p\u003e\n\u003ch3\u003eDoes an oil-free compressor really reduce maintenance?\u003c\/h3\u003e\n\u003cp\u003eYes, significantly. An oil-free compressor eliminates oil changes (complexity and costs). Routine maintenance consists of: checking the air filter every 50 hours (cleaning or replacement), weekly condensate drainage (manual valve), checking pressure gauge. An oil compressor would require oil changes every 500-1,000 hours in addition to additional filtration.\u003c\/p\u003e\n\u003ch3\u003eCan I use the compressor for automotive spray painting?\u003c\/h3\u003e\n\u003cp\u003ePartially yes, but with caution. Oil-free air is a prerequisite. However, automotive painting requires forced air drying (filters up to 3 microns, refrigerated dryer) not declared on this model. For basic painting, it is suitable; for professional automotive finishes, consider adding an external dryer.\u003c\/p\u003e\n\u003ch3\u003eWhat is the recommended maximum duty cycle?\u003c\/h3\u003e\n\u003cp\u003eThe compressor is designed for intermittent use, not continuous. Recommended: maximum 4-6 hours\/day with breaks, not 24\/7. The 1.8 kW motor without soft-start starts directly = current peaks. For use \u0026gt;200 hours\/month, consider a larger compressor with soft start.\u003c\/p\u003e\n\u003ch3\u003eCan I move the compressor from one workshop to another?\u003c\/h3\u003e\n\u003cp\u003eYes, it is possible but with precautions. The 34 kg weight requires 1-2 people. Dimensions 500 × 420 × 820 mm must pass through doors\/stairs (measure entrance first). Before moving: completely discharge pressure, close isolation valve if present, secure tank to avoid damage. After moving, ventilate the compressor for 10 minutes before starting.\u003c\/p\u003e\n\u003ch3\u003eWhat compressed air hose should I use?\u003c\/h3\u003e\n\u003cp\u003ePneumatic rubber\/PVC hose with a minimum pressure of 10 bar (margin over 8 bar working pressure). Standard 1\/4\" fittings with male\/female quick connectors. Hose length: up to 50 m acceptable; beyond 50 m, significant pressure drop = loss of performance. Recommended a 20-30 m coiled hose with a reel for clean storage.\u003c\/p\u003e\n\u003ch3\u003eDo I need to drain the tank at the end of the day?\u003c\/h3\u003e\n\u003cp\u003eRecommended for use in outdoor environments or exposed to humidity. Drain pressure via the drainage valve after work = reduces nocturnal condensate formation in the tank. For use in a covered workshop, less critical but good practice. Every 1-2 weeks, manually open the drainage valve and collect condensate (water collected in a saucer).\u003c\/p\u003e\n\u003ch3\u003eWhat is the actual noise during operation?\u003c\/h3\u003e\n\u003cp\u003e75 dB(A) is moderate noise (comparable to a loud normal conversation). Acceptable in a workshop with nearby operators without special protection, but hearing protection is recommended for continuous sessions \u0026gt;4 hours. For nearby residential environments, it may be annoying — consider sound-absorbing screens.\u003c\/p\u003e","brand":"Bernardo","offers":[{"title":"Default Title","offer_id":53035372314952,"sku":"Z-70-1061","price":681.31,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Compressore_d_aria_senza_olio_Bernardo_AC_PRO_500_20V_F_W_art._Z-70-1061_1_8_kW_20_L.jpg?v=1777895915","url":"https:\/\/www.krollit.com\/products\/compressore-without-olio-bernardo-acpro","provider":"Krollit","version":"1.0","type":"link"}