{"title":"AC Duct Cleaning Machine","description":"\u003ch2\u003eHVAC Duct Cleaning Machines — NADCA Standard Equipment\u003c\/h2\u003e\u003cp\u003eProfessional HVAC air duct cleaning equipment for commercial buildings, hospitals, schools, and office towers. All-in-one robots with integrated brush, camera, and vacuum systems that meet NADCA ACR and ASHRAE 62.1 standards.\u003c\/p\u003e\u003ch3\u003eHVAC Equipment Selection Guide\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBuilding Type\u003c\/th\u003e\n\u003cth\u003eRecommended Equipment\u003c\/th\u003e\n\u003cth\u003eKey Consideration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOffice towers (multi-floor)\u003c\/td\u003e\n\u003ctd\u003eK7S All-in-One\u003c\/td\u003e\n\u003ctd\u003eLong riser ducts, HEPA filtration required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHospitals and healthcare\u003c\/td\u003e\n\u003ctd\u003eK7S + K8 HEPA\u003c\/td\u003e\n\u003ctd\u003eASHRAE 170 compliance, 99.97% HEPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchools and universities\u003c\/td\u003e\n\u003ctd\u003eK7S or K9\u003c\/td\u003e\n\u003ctd\u003eSeasonal cleaning windows, fast turnaround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHotels and hospitality\u003c\/td\u003e\n\u003ctd\u003eK7S + K5\u003c\/td\u003e\n\u003ctd\u003eMixed duct shapes (round + flat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial facilities\u003c\/td\u003e\n\u003ctd\u003eE200\u003c\/td\u003e\n\u003ctd\u003eLarge-diameter ducts, heavy contamination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAC Coil and Component Cleaning\u003c\/h3\u003e\u003cp\u003eIn addition to duct robots, we offer coil cleaning machines (K1-1, K2) for AC tube and fan coil cleaning — essential for complete HVAC system hygiene and energy efficiency. \u003ca href=\"\/collections\/hvac-coil-cleaning-equipment\"\u003eBrowse coil cleaning equipment.\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"k7s-central-air-conditioning-duct-cleaning-robot","title":"K7S AC Duct Cleaning Machine","description":"\u003ch2\u003eGaolijie K7S AC Duct Cleaning Machine\u003c\/h2\u003e\n\u003cp\u003eThe Gaolijie K7S is an all-in-one duct cleaning system for HVAC and air conditioning ductwork. It combines powered brushing, camera inspection, and vacuum collection into a single unit for use in office buildings, hotels, hospitals, and commercial facilities.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"tech-specs\"\u003e\n  \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eK7S\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDuct Diameter Range\u003c\/td\u003e\n\u003ctd\u003e200–800 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaximum Working Distance\u003c\/td\u003e\n\u003ctd\u003e30 m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCamera\u003c\/td\u003e\n\u003ctd\u003eHD with recording and timestamp overlay\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClimbing Angle\u003c\/td\u003e\n\u003ctd\u003e30–35°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCleaning Speed\u003c\/td\u003e\n\u003ctd\u003e4–6 m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDrive System\u003c\/td\u003e\n\u003ctd\u003eTracked crawler, aluminum alloy frame\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eControl System\u003c\/td\u003e\n\u003ctd\u003eDedicated control box with LCD display\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eConfigurable: 110V\/60Hz or 220V\/50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVacuum Integration\u003c\/td\u003e\n\u003ctd\u003ePairs with K8 HEPA dust collector\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~85 kg (system total)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year factory-direct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eThe K7S is used for HVAC duct cleaning in commercial buildings — office towers, retail centers, hotels, and healthcare facilities. It is designed to handle the dust and particulate buildup common in air conditioning and ventilation ductwork, where dry particulate removal is the primary requirement.\u003c\/p\u003e\n\n\u003cp\u003eContact our engineering team for the complete datasheet, application-specific recommendations, and a factory-direct quotation.\u003c\/p\u003e","brand":"GAOLIJIE","offers":[{"title":"Default Title","offer_id":51215783985456,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/files\/20260323093756_634_1196.jpg?v=1774365501"},{"product_id":"k1-1-ac-tube-cleaning-machine","title":"K1-1 AC Tube Cleaning Machine","description":"\u003ch2\u003e🧰 Gaolijie K1-1 AC Tube Cleaning Machine: Ultimate Commercial HVAC Maintenance Tool\u003c\/h2\u003e\n\u003cp\u003eThe Gaolijie K1-1 is a professional-grade, multi-functional tube cleaner specifically designed for commercial central air conditioning condenser pipe and chiller tube cleaning. Equipped with remote control, variable speed control, and a high-torque motor, it efficiently removes stubborn scale, sludge, and debris from narrow and hard-to-reach pipelines, making it an indispensable tool for professional HVAC cleaning services and facility maintenance teams.\u003c\/p\u003e\n\n\u003ch3\u003e✨ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote Control Operation\u003c\/strong\u003e: Wireless remote control for convenient start\/stop and speed adjustment, allowing operators to work safely from a distance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStepless Variable Speed\u003c\/strong\u003e: Infinite speed adjustment (0-1400 RPM) to match different tube diameters and cleaning intensities for versatile operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Power High-Torque Motor\u003c\/strong\u003e: 300W motor with super torque delivers strong power for continuous heavy-duty pipeline descaling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Accessory Kit\u003c\/strong\u003e: Includes 7m flexible shaft, 8m water inlet pipe, and multiple brush specifications (10mm, 14mm, 18\/16mm) to fit various tube sizes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Durable Design\u003c\/strong\u003e: Compact spray-painted metal casing (300*230*165mm) with a sturdy handle, weighing only 10KG for easy transportation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffortless Cleaning\u003c\/strong\u003e: Effortlessly solves cleaning difficulties in narrow spaces, thoroughly cleaning tube walls without damaging the pipeline\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📊 Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eGaolijie\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eK1-1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eMachine Dimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e300*230*165mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e10KG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eSpray Gun Water Pipe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e5m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eBody Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eSpray Paint\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eSpeed\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e1400 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eVoltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e220V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e300W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eFlexible Shaft\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e7m (R10mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eOutput Pressure\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e10kg\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eFlexible Shaft Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e4.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e🎁 What's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Gaolijie K1-1 Main Unit\u003c\/li\u003e\n  \u003cli\u003e1 x 7m Tube Cleaning Flexible Shaft (R10mm)\u003c\/li\u003e\n  \u003cli\u003e1 x 8m Water Inlet Pipe\u003c\/li\u003e\n  \u003cli\u003e1 x 20mm Brush\u003c\/li\u003e\n  \u003cli\u003e1 x 12m Brush\u003c\/li\u003e\n  \u003cli\u003e1 x 14mm Brush\u003c\/li\u003e\n  \u003cli\u003e1 x 18\/16mm Brush\u003c\/li\u003e\n  \u003cli\u003e1 x Remote Control\u003c\/li\u003e\n  \u003cli\u003e1 x User Manual \u0026amp; Technical Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🎯 Why Choose Gaolijie K1-1?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eProfessional HVAC Grade\u003c\/strong\u003e: Designed for commercial central AC condenser and chiller tube cleaning, trusted by professionals\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eComplete Support Package\u003c\/strong\u003e: Free professional cleaning technology training + bidding quotation materials included\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFactory Direct Supply\u003c\/strong\u003e: 1-year warranty, direct from the manufacturer with guaranteed quality\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTime \u0026amp; Labor Saving\u003c\/strong\u003e: High-efficiency tube cleaning reduces maintenance time and labor costs significantly\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eAll-in-One Solution\u003c\/strong\u003e: One machine handles multiple tube sizes and cleaning tasks for a versatile cleaning solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIdeal for commercial air conditioning maintenance companies, hotel and hospital facility management, and industrial chiller cleaning services, the Gaolijie K1-1 multi-functional tube cleaner is your reliable partner for maintaining optimal HVAC system performance and extending equipment lifespan.\u003c\/p\u003e\n\n\u003ch3\u003e📚 Related Guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/hvac-duct-cleaning-equipment-for-contractors-professional-b2b-buying-guide-2026\"\u003eHVAC Duct Cleaning Equipment for Contractors: Professional B2B Buying Guide 2026\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/ac-duct-cleaning-machine-buyers-guide-2026\"\u003eWhy AC Duct Cleaning Is a High-Growth Service Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/duct-cleaning-industry-report-2026\"\u003eDuct Cleaning Industry Report 2026: Global Market Analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gaolijie","offers":[{"title":"Default Title","offer_id":51238090604848,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/files\/b8421501ceee8ed8defa49d79fc692df.jpg?v=1774954467"},{"product_id":"k5-flat-duct-cleaning-robot","title":"K5 Flat Duct Cleaning Robot","description":"\u003ch2\u003e🧰 Gaolijie K5 Flat Duct Cleaning Robot: Professional HVAC Duct Inspection \u0026amp; Cleaning Solution\u003c\/h2\u003e\n\u003cp\u003eThe Gaolijie K5 is a professional-grade, tracked flat duct cleaning robot, specifically designed for commercial central air conditioning low-profile duct cleaning and inspection. Equipped with 4K industrial camera, dual LED lighting, and a portable control console, it efficiently solves the cleaning challenges of narrow, low-height air ducts, making it an essential tool for professional HVAC cleaning service providers.\u003c\/p\u003e\n\n\u003ch3\u003e✨ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Profile Design\u003c\/strong\u003e: Compact 110mm height body, perfect for low and narrow flat ducts that are hard to reach manually\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4K Industrial HD Camera\u003c\/strong\u003e: Corrosion-resistant, wide-angle waterproof camera with real-time monitoring and long-time recording function\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual LED Lighting\u003c\/strong\u003e: 2*3W high-brightness diffused LED lights for clear visibility in dark duct environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e30° Climbing \u0026amp; Off-Road Performance\u003c\/strong\u003e: Strong tracked drive for stable movement and obstacle crossing in complex ductwork\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP66 Waterproof \u0026amp; 304 Stainless Steel Body\u003c\/strong\u003e: Industrial-grade build, resistant to acid, alkali and harsh cleaning environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20m Working Range\u003c\/strong\u003e: 20m control cable for long-distance operation, covering large commercial duct systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-in-One Control Console\u003c\/strong\u003e: 10.2-inch HD LCD screen with synchronous inspection and recording system, easy to operate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📊 Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eGaolijie\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eK5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e7KG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Dimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e430*350*187mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e24V DC Low Voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eDisplay Screen\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e10.2-inch HD LCD, Synchronous Inspection \u0026amp; Recording\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e9.8KG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Dimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e380*210*110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eIP66\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eWorking Stroke\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e20m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eTravel Speed\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e4-5m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Cable Length\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e20m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eLighting\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e2*3W High-Brightness Diffused LED\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eCamera\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eIndustrial 4K Color Wide-Angle Waterproof Camera\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eDrive Method\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eServo Analog Signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e🎁 What's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Gaolijie K5 Control Console\u003c\/li\u003e\n  \u003cli\u003e1 x Gaolijie K5 Flat Duct Cleaning Robot\u003c\/li\u003e\n  \u003cli\u003e1 x Flat Ball Brush\u003c\/li\u003e\n  \u003cli\u003e1 x Power Cord\u003c\/li\u003e\n  \u003cli\u003e1 x 10m Dust Suction Pipe\u003c\/li\u003e\n  \u003cli\u003e1 x 20m Control Cable\u003c\/li\u003e\n  \u003cli\u003e1 x Set of Small Tools\u003c\/li\u003e\n  \u003cli\u003e1 x Dust Suction Pipe Clamp\u003c\/li\u003e\n  \u003cli\u003e1 x User Manual \u0026amp; Technical Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🎯 Why Choose Gaolijie K5?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eProfessional HVAC Grade\u003c\/strong\u003e: Specifically designed for commercial central AC flat duct cleaning and inspection, trusted by industry professionals\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eComplete Support Package\u003c\/strong\u003e: Free professional cleaning technology training + bidding quotation materials included\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFactory Direct Supply\u003c\/strong\u003e: 1-year warranty, direct from the manufacturer with guaranteed quality\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTime \u0026amp; Labor Saving\u003c\/strong\u003e: Automates cleaning and inspection of hard-to-reach ducts, significantly improving work efficiency\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eVersatile Application\u003c\/strong\u003e: Ideal for commercial buildings, hotels, hospitals, offices, and industrial facilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhether you're running a professional duct cleaning service or maintaining large commercial HVAC systems, the Gaolijie K5 flat duct cleaning robot is your ultimate solution for efficient, thorough, and safe air duct maintenance.\u003c\/p\u003e\u003ch3\u003eK5 Flat Duct Cleaning Robot — B2B Technical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat duct shapes can the K5 clean?\u003c\/strong\u003e The K5 is specifically engineered for \u003cstrong\u003erectangular and flat ductwork\u003c\/strong\u003e commonly found in commercial buildings, office ventilation systems, and industrial facilities. It handles duct widths from 300mm to 1,500mm and heights from 150mm to 600mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the K5 navigate flat ducts?\u003c\/strong\u003e The K5 uses a tracked drive system with independent left\/right motor control for precise steering in rectangular ducts. Its low-profile design (under 140mm) allows access to ducts that round robots cannot enter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the K5 different from round duct robots?\u003c\/strong\u003e Round duct robots like the CR360 or K9 use circular brush rotation optimized for cylindrical ducts. The K5's brush system is designed for flat surfaces, providing even pressure across the full width of rectangular ductwork for consistent cleaning results. For businesses serving commercial office buildings and industrial facilities with predominantly rectangular ductwork, the K5 is the essential specialized tool.\u003c\/p\u003e\n\n\u003ch3\u003e📚 Related Guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/hvac-duct-cleaning-equipment-guide\"\u003eComplete Guide to HVAC Duct Cleaning: Equipment, Methods and Industry Standards\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/duct-cleaning-robot-technical-specifications-engineer-comparison-guide-2026\"\u003eDuct Cleaning Robot Technical Specifications: Engineers Comparison Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/duct-cleaning-industry-report-2026\"\u003eDuct Cleaning Industry Report 2026: Global Market Analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gaolijie","offers":[{"title":"Default Title","offer_id":51238096699696,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/files\/4fdc927e21bb98091c557caad2867d05.jpg?v=1774955284"},{"product_id":"k8-professional-duct-dust-collector","title":"K8 Professional Duct Dust Collector","description":"\u003ch2\u003eK8 Professional Duct Dust Collector — H13 HEPA Negative Air Vacuum for Commercial Duct Cleaning\u003c\/h2\u003e\n\n\u003cp\u003eThe Gaolijie K8 is a high-performance negative air machine with H13 HEPA filtration, designed as the vacuum partner for Gaolijie duct cleaning robots. It captures 99.97% of particles at 0.3 microns — the filtration standard required for healthcare, pharmaceutical, data center, and Class A office duct cleaning projects.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eH13 HEPA Filtration:\u003c\/strong\u003e 99.97% efficiency at 0.3 microns. Suitable for environments requiring HEPA-level filtration, including healthcare, pharmaceutical, and data center applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2,000W+ Industrial Motor:\u003c\/strong\u003e Sufficient negative air pressure for ducts up to 30m from the vacuum connection point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for Continuous Operation:\u003c\/strong\u003e Unlike shop vacs converted for duct cleaning, the K8 is engineered for hours of continuous negative air operation without overheating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Collection Capacity:\u003c\/strong\u003e Extended cleaning sessions without frequent emptying. Tool-free bag replacement for quick turnaround between jobs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile Platform:\u003c\/strong\u003e Heavy-duty casters with locking brakes. Move between access points easily on commercial job sites\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy HEPA Filtration Matters\u003c\/h3\u003e\n\u003cp\u003eStandard filtration vacuums release fine particulate back into the building air during duct cleaning. In a hospital, this is an infection control risk. In a data center, conductive dust can damage server hardware. In a pharmaceutical facility, it can contaminate product batches. H13 HEPA is not optional for these environments — it is specified in contract requirements and facility protocols.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"tech-specs\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eK8\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Power\u003c\/td\u003e\n\u003ctd\u003e2,000W+ industrial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Standard\u003c\/td\u003e\n\u003ctd\u003eH13 HEPA (99.97% at 0.3 microns)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation Mode\u003c\/td\u003e\n\u003ctd\u003eContinuous duty rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eConfigurable: 110V\/60Hz or 220V\/50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMobility\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty locking casters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible With\u003c\/td\u003e\n\u003ctd\u003eAll Gaolijie duct cleaning robots (K7S, K5, K9, E200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBag System\u003c\/td\u003e\n\u003ctd\u003eTool-free replacement, large capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need the K8 if I already have a shop vac?\u003c\/strong\u003e\u003cbr\u003eA: The K8 provides H13 HEPA filtration and is designed for extended operation during commercial duct cleaning jobs. For light residential work, a high-quality shop vac may be adequate for short runs. Contact our team for guidance on whether the K8 is a good fit for your specific applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between H13 and H14 HEPA?\u003c\/strong\u003e\u003cbr\u003eA: H13 captures 99.97% at 0.3 microns. H14 captures 99.995%. H13 is commonly specified for hospital and pharmaceutical HVAC applications. H14 is typically required for ISO 5 (Class 100) cleanrooms. The K8 uses H13 filtration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the K8 with non-Gaolijie robots?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the K8 has a standard vacuum connection that can be adapted to most duct cleaning robots. However, optimal performance is achieved when paired with Gaolijie robots, which are designed with matching airflow specifications.\u003c\/p\u003e","brand":"Gaolijie","offers":[{"title":"Default Title","offer_id":51238116983088,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/files\/fe9fb059219ba0cc737475367c6587eb.jpg?v=1774956402"},{"product_id":"k9-high-speed-duct-cleaning-robot","title":"K9 High-Speed Duct Cleaning Robot","description":"\u003ch2\u003e🧰 Gaolijie K9 High-Speed Duct Cleaning Robot: Professional HVAC Duct Deep Cleaning Solution\u003c\/h2\u003e\n\u003cp\u003eThe Gaolijie K9 is a professional-grade, tracked high-speed duct cleaning robot, designed for commercial central air conditioning duct deep cleaning and inspection. Equipped with a 10.2-inch HD control console, dual cameras, and a powerful cleaning brush system, it delivers efficient, thorough cleaning of air ducts, making it an essential tool for professional HVAC cleaning service providers.\u003c\/p\u003e\n\n\u003ch3\u003e✨ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Cleaning Performance\u003c\/strong\u003e: Up to 350㎡\/h cleaning efficiency, far exceeding manual cleaning speed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-in-One Control Console\u003c\/strong\u003e: 10.2-inch HD LCD screen with synchronous inspection and recording system, easy to operate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Wide-Angle Cameras\u003c\/strong\u003e: Front and rear color wide-angle cameras for full-view monitoring of duct interior\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowerful Brush System\u003c\/strong\u003e: Multi-angle sweeping brushes for 360° thorough cleaning of duct walls, corners and ceilings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e304 Stainless Steel Body\u003c\/strong\u003e: Industrial-grade build, durable and corrosion-resistant for long-term use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e20m Working Range\u003c\/strong\u003e: 20m control cable for long-distance operation, covering large commercial duct systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Speed Drive\u003c\/strong\u003e: Adjustable 4-5m\/min travel speed to adapt to different duct environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12V Focused Lighting\u003c\/strong\u003e: Bright LED lighting for clear visibility in dark duct environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📊 Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n  \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 12px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eGaolijie\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eK9\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e7KG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Dimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e430*350*187mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Box Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e220V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eDisplay Screen\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e10.2-inch HD LCD, Synchronous Inspection \u0026amp; Recording\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Weight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e13KG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Dimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e360*260*265mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eDrive Method\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eVariable Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eTravel Speed\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e4-5m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eRobot Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eControl Cable Length\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e20m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eLighting\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e12V Focused LED\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eCamera\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eColor Wide-Angle (Front \u0026amp; Rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003eCleaning Efficiency\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 12px;\"\u003e≤350㎡\/H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e🎯 Why Choose Gaolijie K9?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eProfessional HVAC Grade\u003c\/strong\u003e: Specifically designed for commercial central AC duct deep cleaning, trusted by industry professionals\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eComplete Support Package\u003c\/strong\u003e: Free professional cleaning technology training + bidding quotation materials included\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFactory Direct Supply\u003c\/strong\u003e: 1-year warranty, direct from the manufacturer with guaranteed quality\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTime \u0026amp; Labor Saving\u003c\/strong\u003e: High-efficiency cleaning reduces labor costs and improves work efficiency by 5x+\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eVersatile Application\u003c\/strong\u003e: Ideal for commercial buildings, hotels, hospitals, offices, and industrial facilities\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhether you're running a professional duct cleaning service or maintaining large commercial HVAC systems, the Gaolijie K9 high-speed duct cleaning robot is your ultimate solution for efficient, thorough, and safe air duct maintenance.\u003c\/p\u003e\u003ch3\u003eK9 High-Speed Duct Cleaning Robot — Production-Grade B2B Machine\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the K9 'high-speed'?\u003c\/strong\u003e The K9 features a \u003cstrong\u003edual-brush system with higher RPM motors\u003c\/strong\u003e compared to standard models, enabling faster cleaning passes through ductwork. In head-to-head testing, the K9 completes commercial kitchen exhaust cleaning jobs approximately 30-40% faster than single-brush robots, translating to more jobs per day and higher monthly revenue for B2B cleaning contractors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the K9's maximum control range?\u003c\/strong\u003e The K9 offers \u003cstrong\u003e100-meter wireless remote control range\u003c\/strong\u003e — the longest in Gaolijie's product line. This extended range is critical for large commercial and industrial duct systems where the operator may need to position far from the robot's entry point. The wireless system uses industrial-grade frequency-hopping technology to maintain reliable control even in metal ductwork environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the K9 suitable for wet cleaning?\u003c\/strong\u003e The K9 has IP54 water resistance rating, suitable for light wet cleaning applications and damp duct environments. For heavy wet cleaning with chemical degreasing, the CR360 (IP65 rated) is recommended for commercial kitchen exhaust applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the typical B2B payback period for a K9?\u003c\/strong\u003e High-volume cleaning contractors (5-8 jobs per week) typically achieve full K9 equipment payback in \u003cstrong\u003e2-3 months\u003c\/strong\u003e based on labor savings and increased job throughput. The K9's faster cleaning speed enables approximately 1-2 additional jobs per week compared to standard models.\u003c\/p\u003e\n\n\u003ch3\u003e📚 Related Guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/duct-cleaning-robot-price-guide-2026\"\u003eHow Much Does a Duct Cleaning Robot Cost? Complete Factory-Direct Price Guide (2026)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/hvac-duct-cleaning-business-equipment-profit-guide-2026\"\u003eHVAC Duct Cleaning Business: Equipment, Process and Profit Guide 2026\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/duct-cleaning-industry-report-2026\"\u003eDuct Cleaning Industry Report 2026: Global Market Analysis\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gaolijie","offers":[{"title":"Default Title","offer_id":51238134022448,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/files\/7e85600efc2a6da0f8763ee1c0707f9b.jpg?v=1774957334"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2986\/5264\/collections\/20260323093756_634_1196.jpg?v=1774600095","url":"https:\/\/gaolijierobot.com\/collections\/ac-duct-cleaning-machine.oembed","provider":"Gaolijie","version":"1.0","type":"link"}