{"product_id":"emax-eco-ii-3210-brushless-motor-choose-kv","title":"EMAX ECO II 3210 Brushless Motor","description":"\u003c!-- ECO II 3210 product description. 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.hero-copy{max-width:none}.emx3210 .hero h2{font-size:52px}.emx3210 .hero p{font-size:15px}.emx3210 .intro,.emx3210 .split,.emx3210 .section-head,.emx3210 .spec-grid,.emx3210 .package{grid-template-columns:1fr;gap:25px}.emx3210 .split.reverse .visual,.emx3210 .split.reverse .copy{order:initial}.emx3210 .intro .photo{order:-1}.emx3210 .package .visual{order:-1}.emx3210 .stat{padding:18px 15px}.emx3210 .stat strong{font-size:25px}.emx3210 .swipe{display:block}.emx3210 .series-intro{padding:44px 0 38px}.emx3210 .series-intro p{font-size:15px}.emx3210 .graphic-frame.detail{overflow-x:auto;-webkit-overflow-scrolling:touch}.emx3210 .graphic-frame.detail img{width:900px;max-width:none}.emx3210 .graphic-swipe{display:block}.emx3210 .graphic-copy{padding:15px 18px 19px}}\n    @media(max-width:440px){.emx3210 .kv-grid{grid-template-columns:1fr}.emx3210 .stats{grid-template-columns:repeat(2,1fr)}.emx3210 .stat small{font-size:9px}.emx3210 .stat strong{font-size:21px}.emx3210 .feature-list{grid-template-columns:1fr 1fr}.emx3210 .feature-list strong{font-size:19px}}\n  \u003c\/style\u003e\n\u003cdiv class=\"emx3210\"\u003e\n\u003csection class=\"series-intro\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eEMAX \/ ECO II series\u003c\/div\u003e\n\u003ch2\u003eECO II \u003cspan\u003e3210\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe EMAX ECO II 3210 brushless motor brings four KV options to 8–10-inch multirotor builds. The 800KV and 900KV versions support 6–8S; the 1050KV and 1200KV versions are specified for 6S. Each shares a 99g-with-wire platform, 12N14P architecture, M5 propeller shaft and 19 × 19mm four-hole mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"graphic-section\"\u003e\n\u003cfigure class=\"graphic-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Sep_17_2026_07_07_26_PM.png?v=1789686876\" alt=\"EMAX ECO II 3210 motor: four KV options, tested output up to 4.38kg with 900KV at 31.3V, 12N14P and 39.1mm diameter\" loading=\"eager\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"graphic-copy\"\u003e\n\u003cp\u003eTested output shown: 900KV with HQ8045 tri-blade at 31.3V on a static bench. Performance varies by propeller, voltage and build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"stats wrap\"\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003csmall\u003eWeight\u003c\/small\u003e\u003cstrong\u003e99g\u003c\/strong\u003e\u003cspan\u003eWith 270mm wires\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003csmall\u003ePower system\u003c\/small\u003e\u003cstrong\u003e6S–8S\u003c\/strong\u003e\u003cspan\u003eKV-dependent support\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003csmall\u003ePropeller range\u003c\/small\u003e\u003cstrong\u003e8–10″\u003c\/strong\u003e\u003cspan\u003eKV-dependent recommendation\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003csmall\u003eKV options\u003c\/small\u003e\u003cstrong\u003e4\u003c\/strong\u003e\u003cspan\u003e800 \/ 900 \/ 1050 \/ 1200KV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eDesigned for the build\u003c\/div\u003e\n\u003ch3\u003eThe ECO II step into larger props.\u003c\/h3\u003e\n\u003cp style=\"max-width: 860px; margin-top: 18px;\"\u003eA common 39.1mm-diameter platform lets you choose the winding for the power system rather than changing your mechanical footprint. Match the propeller, ESC and battery to the specific KV\/voltage combination; the published 8–10-inch range applies to the motor family, not every variant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"graphic-section\"\u003e\n\u003cfigure class=\"graphic-frame detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Sep_17_2026_07_06_58_PM.png?v=1789686854\" alt=\"ECO II 3210 KV guide: 800KV 6–8S, 900KV 6–8S, 1050KV 6S and 1200KV 6S with propeller ranges and individually labeled bench thrust\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"graphic-swipe\"\u003eSwipe to explore all four KV options →\u003c\/div\u003e\n\u003cdiv class=\"graphic-copy\"\u003e\n\u003cp\u003eEach thrust figure is the maximum recorded in that version’s supplied load-test file. Different props and test voltages mean these are not direct head-to-head results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\" id=\"emx3210-kv\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"section-head\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eFind your winding\u003c\/div\u003e\n\u003ch3\u003eFour KV options. One mounting footprint.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eVoltage and propeller ranges come from the supplied specifications. The thrust figure on each card is the highest recorded in that KV’s supplied bench file, with its test voltage and propeller shown—not a same-condition comparison between variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"kv-grid\"\u003e\n\u003carticle class=\"kv\"\u003e\n\u003cdiv class=\"name\"\u003e800\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"role\"\u003eLower-KV choice with the broadest published propeller range.\u003c\/p\u003e\n\u003cdiv\u003eCells6–8S\u003c\/div\u003e\n\u003cdiv\u003ePropeller8–10″\u003c\/div\u003e\n\u003cdiv\u003eResistance58mΩ\u003c\/div\u003e\n\u003cdiv class=\"bench\"\u003e\n\u003csmall\u003eRecorded max thrust\u003c\/small\u003e\u003cstrong\u003e3,962g\u003c\/strong\u003e\u003cspan\u003e31.5V · GF8060 tri-blade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003carticle class=\"kv\"\u003e\n\u003cdiv class=\"name\"\u003e900\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"role\"\u003e6–8S option for 8–9-inch multirotor configurations.\u003c\/p\u003e\n\u003cdiv\u003eCells6–8S\u003c\/div\u003e\n\u003cdiv\u003ePropeller8–9″\u003c\/div\u003e\n\u003cdiv\u003eResistance52mΩ\u003c\/div\u003e\n\u003cdiv class=\"bench\"\u003e\n\u003csmall\u003eRecorded max thrust\u003c\/small\u003e\u003cstrong\u003e4,378g\u003c\/strong\u003e\u003cspan\u003e31.3V · HQ8045 tri-blade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003carticle class=\"kv\"\u003e\n\u003cdiv class=\"name\"\u003e1050\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"role\"\u003e6S choice with an 8–9-inch published propeller range.\u003c\/p\u003e\n\u003cdiv\u003eCells6S\u003c\/div\u003e\n\u003cdiv\u003ePropeller8–9″\u003c\/div\u003e\n\u003cdiv\u003eResistance41mΩ\u003c\/div\u003e\n\u003cdiv class=\"bench\"\u003e\n\u003csmall\u003eRecorded max thrust\u003c\/small\u003e\u003cstrong\u003e3,920g\u003c\/strong\u003e\u003cspan\u003e24.3V · GF9045 tri-blade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003carticle class=\"kv\"\u003e\n\u003cdiv class=\"name\"\u003e1200\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"role\"\u003eHighest-KV option, specified for 6S and 8-inch props.\u003c\/p\u003e\n\u003cdiv\u003eCells6S\u003c\/div\u003e\n\u003cdiv\u003ePropeller8″\u003c\/div\u003e\n\u003cdiv\u003eResistance35mΩ\u003c\/div\u003e\n\u003cdiv class=\"bench\"\u003e\n\u003csmall\u003eRecorded max thrust\u003c\/small\u003e\u003cstrong\u003e4,181g\u003c\/strong\u003e\u003cspan\u003e24.3V · GF8040 tri-blade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cp class=\"note\"\u003eThrust is per motor, measured on a static test bench at full throttle. Test voltage, propeller, current and power differ by row; do not treat these figures as a controlled head-to-head KV ranking or a guaranteed in-flight result.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"graphic-section\"\u003e\n\u003cfigure class=\"graphic-frame detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Sep_17_2026_07_07_46_PM.png?v=1789686901\" alt=\"ECO II 3210 shared 99g motor platform with 19 by 19mm mount, 270mm leads, 39.1mm diameter and four voltage-specific KV options\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"graphic-swipe\"\u003eSwipe to read the platform details →\u003c\/div\u003e\n\u003cdiv class=\"graphic-copy\"\u003e\n\u003cp\u003eWeight is 99g with wire. The shared mechanical platform is specified across 800KV, 900KV, 1050KV and 1200KV.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"section-head\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eMotor anatomy\u003c\/div\u003e\n\u003ch3\u003eFitment and construction, clearly marked.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe 3210 uses a steel M5 propeller shaft, ventilated anodized bell, multi-strand winding, precision bearing and a 19 × 19mm four-hole M3 mount. Its 270mm 18 AWG silicone leads leave room to route to the ESC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e12N14P\u003c\/strong\u003e\u003cspan\u003eMotor architecture\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e6mm\u003c\/strong\u003e\u003cspan\u003eBearing shaft\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e19 × 19mm\u003c\/strong\u003e\u003cspan\u003e4 × M3 mounting pattern\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e270mm\u003c\/strong\u003e\u003cspan\u003e18 AWG silicone leads\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"graphic-section\"\u003e\n\u003cfigure class=\"graphic-frame detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Sep_17_2026_07_07_52_PM.png?v=1789686916\" alt=\"Annotated ECO II 3210 hardware: steel M5 shaft, ventilated rotor bell, multi-strand windings, precision bearing, 19 by 19mm four-hole mount and 270mm leads\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"graphic-swipe\"\u003eSwipe to inspect the hardware callouts →\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"section-head\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eSpecifications\u003c\/div\u003e\n\u003ch3\u003eMechanical and electrical details.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eShared hardware specifications apply across all four KV choices. Electrical resistance and idle current change with the winding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv\u003e\n\u003ch4\u003eShared mechanical specification\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMotor dimensions\u003c\/th\u003e\n\u003ctd\u003eØ39.1 × 45.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e99g, with wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFramework\u003c\/th\u003e\n\u003ctd\u003e12N14P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBearing shaft\u003c\/th\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProp shaft\u003c\/th\u003e\n\u003ctd\u003eM5, clockwise thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMounting pattern\u003c\/th\u003e\n\u003ctd\u003e19 × 19mm, 4 × M3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMotor lead\u003c\/th\u003e\n\u003ctd\u003e270mm, 18 AWG silicone wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003eBy KV option\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e800KV\u003c\/th\u003e\n\u003ctd\u003e6–8S · 8–10″ prop · 58mΩ · 1.5A idle at 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e900KV\u003c\/th\u003e\n\u003ctd\u003e6–8S · 8–9″ prop · 52mΩ · 1.6A idle at 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e1050KV\u003c\/th\u003e\n\u003ctd\u003e6S · 8–9″ prop · 41mΩ · 1.9A idle at 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e1200KV\u003c\/th\u003e\n\u003ctd\u003e6S · 8″ prop · 35mΩ · 2.4A idle at 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"section-head\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eMeasured performance\u003c\/div\u003e\n\u003ch3\u003eBench results, with the conditions attached.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese are the highest-thrust full-throttle rows recorded for each KV in the supplied load-test workbooks. Current and power are input readings at the listed loaded voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bench-table-wrap\"\u003e\n\u003ctable class=\"bench-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eLoaded voltage\u003c\/th\u003e\n\u003cth\u003eThrust\u003c\/th\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eSpeed\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e800KV\u003c\/td\u003e\n\u003ctd\u003eGF8060 tri-blade\u003c\/td\u003e\n\u003ctd\u003e31.5V\u003c\/td\u003e\n\u003ctd\u003e3,962g\u003c\/td\u003e\n\u003ctd\u003e56.12A\u003c\/td\u003e\n\u003ctd\u003e1,767.78W\u003c\/td\u003e\n\u003ctd\u003e18,737RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e900KV\u003c\/td\u003e\n\u003ctd\u003eHQ8045 tri-blade\u003c\/td\u003e\n\u003ctd\u003e31.3V\u003c\/td\u003e\n\u003ctd\u003e4,378g\u003c\/td\u003e\n\u003ctd\u003e70.55A\u003c\/td\u003e\n\u003ctd\u003e2,208.22W\u003c\/td\u003e\n\u003ctd\u003e19,853RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1050KV\u003c\/td\u003e\n\u003ctd\u003eGF9045 tri-blade\u003c\/td\u003e\n\u003ctd\u003e24.3V\u003c\/td\u003e\n\u003ctd\u003e3,920g\u003c\/td\u003e\n\u003ctd\u003e77.90A\u003c\/td\u003e\n\u003ctd\u003e1,892.97W\u003c\/td\u003e\n\u003ctd\u003e17,180RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1200KV\u003c\/td\u003e\n\u003ctd\u003eGF8040 tri-blade\u003c\/td\u003e\n\u003ctd\u003e24.3V\u003c\/td\u003e\n\u003ctd\u003e4,181g\u003c\/td\u003e\n\u003ctd\u003e79.40A\u003c\/td\u003e\n\u003ctd\u003e1,929.42W\u003c\/td\u003e\n\u003ctd\u003e20,753RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"swipe\"\u003eSwipe table sideways for thrust, current, power and RPM →\u003c\/div\u003e\n\u003cp class=\"note\"\u003eStatic test values are conditional on the listed propeller, voltage and test setup. The 800KV and 900KV rows above are from approximately 8S test voltage; the 1050KV and 1200KV rows are from approximately 6S test voltage. Actual output, temperature and endurance depend on the full build.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"graphic-section\"\u003e\n\u003cfigure class=\"graphic-frame detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Sep_17_2026_07_08_03_PM.png?v=1789687019\" alt=\"ECO II 3210 package with one motor, four M3 by 10mm screws and one aluminum M5 nylock nut\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"graphic-swipe\"\u003eSwipe to read the package contents →\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eIn the box\u003c\/div\u003e\n\u003ch3\u003eMotor and mounting hardware.\u003c\/h3\u003e\n\u003cp style=\"max-width: 820px; margin-top: 17px;\"\u003eEach package includes one ECO II 3210 motor in the selected KV, four M3 × 10mm mounting screws and one aluminum M5 nylock nut. A propeller, ESC and battery are not listed as included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"foot\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cp\u003eEMAX ECO II 3210 brushless multirotor motor. Specifications and bench measurements transcribed from the supplied ECOII-3210 V1.0 basic-information, specification and KV load-test workbooks. Confirm propeller clearance, ESC capacity and thermal behavior in the completed aircraft. Graphics are based on an 800KV sample; shared hardware appearance is representative of the motor family.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Emax USA","offers":[{"title":"Default Title","offer_id":48378404995308,"sku":"ECOII3210800","price":24.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/1.png?v=1789688908","url":"https:\/\/shop.emax-usa.com\/products\/emax-eco-ii-3210-brushless-motor-choose-kv","provider":"Emax USA","version":"1.0","type":"link"}