{"product_id":"emax-ecoii-4215-brushless-motor","title":"EMAX ECOII 4215 Brushless Motor","description":"\u003cdiv class=\"emx4215\"\u003e\n  \u003cstyle\u003e\n    .emx4215{\n      --emx-red:#e31b23;\n      --emx-red-dark:#8d0f15;\n      --emx-black:#070809;\n      --emx-panel:#0d0f12;\n      --emx-panel-2:#12151a;\n      --emx-line:#292d33;\n      --emx-text:#f3f4f6;\n      --emx-muted:#a7adb7;\n      --emx-white:#ffffff;\n      background:var(--emx-black);\n      color:var(--emx-text);\n      border:1px solid #1c1f24;\n      font-family:Arial,Helvetica,sans-serif;\n      line-height:1.55;\n      overflow:hidden;\n      isolation:isolate;\n    }\n    .emx4215 *{box-sizing:border-box}\n    .emx4215 img{display:block;max-width:100%;height:auto}\n    .emx4215 h2,.emx4215 h3,.emx4215 h4,.emx4215 p{margin-top:0}\n    .emx4215 h2,.emx4215 h3,.emx4215 h4{\n      color:var(--emx-white);font-weight:800;letter-spacing:.02em;line-height:1.12;\n    }\n    .emx4215 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.emx-wrap{padding:0 17px}\n      .emx4215 .emx-media-copy{padding:18px 17px 23px}\n      .emx4215 .emx-media-frame.emx-media-detail{overflow-x:auto;-webkit-overflow-scrolling:touch}\n      .emx4215 .emx-media-frame.emx-media-detail img{width:900px;max-width:none}\n      .emx4215 .emx-media-detail + .emx-swipe{display:block}\n      .emx4215 .emx-section{padding:48px 0}\n      .emx4215 .emx-hero{padding:54px 0 42px}\n      .emx4215 .emx-stat-grid{grid-template-columns:1fr 1fr}\n      .emx4215 .emx-stat{min-height:104px;padding:17px 15px}\n      .emx4215 .emx-stat strong{font-size:23px}\n      .emx4215 .emx-feature-grid{grid-template-columns:1fr}\n      .emx4215 .emx-bar-row{grid-template-columns:118px minmax(90px,1fr) 65px;gap:8px}\n      .emx4215 .emx-bar-label{display:block}\n      .emx4215 .emx-bar-label span{display:block;margin-top:1px}\n      .emx4215 .emx-package{grid-template-columns:1fr}\n      .emx4215 .emx-details summary{align-items:flex-start;flex-wrap:wrap}\n      .emx4215 .emx-details .emx-meta{margin-left:0;width:calc(100% - 30px)}\n    }\n  \u003c\/style\u003e\n\n  \u003csection class=\"emx-hero\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-hero-grid\"\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"emx-series\"\u003e\n\u003cb\u003eECO II SERIES\u003c\/b\u003e \/ LARGE MULTIROTOR POWER\u003c\/div\u003e\n          \u003cdiv class=\"emx-kicker\"\u003eBrushless Motor Platform\u003c\/div\u003e\n          \u003ch2\u003eEMAX ECO II \u003cspan\u003e4215\u003c\/span\u003e\n\u003c\/h2\u003e\n          \u003cp class=\"emx-lede\"\u003eThe EMAX ECO II 4215 is a high-output brushless motor platform for 13-inch multirotor propellers. Four winding options—350KV, 420KV, 520KV and 660KV—cover 6S through 12S power systems, while the 12N14P architecture, 49.1mm diameter, 65.35mm length, M6 threaded propeller shaft and 30 × 30mm mounting pattern provide a practical foundation for large multirotor propulsion.\u003c\/p\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"emx-hero-side\"\u003e\n          \u003cstrong\u003eFour KV options. One 4215 platform.\u003c\/strong\u003e\n          \u003cspan\u003e350KV for 6S–12S high-voltage systems.\u003c\/span\u003e\n          \u003cspan\u003e420KV for 6S–10S power systems.\u003c\/span\u003e\n          \u003cspan\u003e520KV for 6S–8S configurations.\u003c\/span\u003e\n          \u003cspan\u003e660KV for responsive 6S configurations.\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"emx-stat-grid\" aria-label=\"EMAX ECO II 4215 key specifications\"\u003e\n        \u003cdiv class=\"emx-stat\"\u003e\n\u003csmall\u003eMotor weight\u003c\/small\u003e\u003cstrong\u003e209–210g\u003c\/strong\u003e\u003cspan\u003eExcluding silicone wire\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-stat\"\u003e\n\u003csmall\u003eSystem range\u003c\/small\u003e\u003cstrong\u003e6S–12S\u003c\/strong\u003e\u003cspan\u003eKV-dependent battery support\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-stat\"\u003e\n\u003csmall\u003ePropeller\u003c\/small\u003e\u003cstrong\u003e13\"\u003c\/strong\u003e\u003cspan\u003ePublished platform specification\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-stat\"\u003e\n\u003csmall\u003eFramework\u003c\/small\u003e\u003cstrong\u003e12N14P\u003c\/strong\u003e\u003cspan\u003eLarge outrunner architecture\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-media-section\" aria-label=\"EMAX ECO II 4215 motor infographic showing high-voltage operation, tested thrust and four KV options\"\u003e\n    \u003cdiv class=\"emx-media-wrap\"\u003e\n      \u003cfigure class=\"emx-media-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/exec-6601f46f-d388-413a-b310-66e3e4f8f1f6.png?v=1787766817\" alt=\"EMAX ECO II 4215 brushless motor for 13-inch multirotors with 350KV, 420KV, 520KV and 660KV options\" loading=\"eager\"\u003e\u003c\/figure\u003e\n      \u003cdiv class=\"emx-media-copy\"\u003e\u003cp\u003e\u003cb\u003eHigh-voltage 13-inch propulsion.\u003c\/b\u003e The 350KV configuration supports up to 12S, and the supplied 48V bench test recorded as much as 8.13kg of thrust with an HQ 1309 three-blade propeller.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-heading-row\"\u003e\n        \u003cdiv\u003e\n\u003cdiv class=\"emx-kicker\"\u003e01 \/ KV Selection\u003c\/div\u003e\n\u003ch3\u003eMatch voltage and winding to the aircraft.\u003c\/h3\u003e\n\u003c\/div\u003e\n        \u003cp\u003ePublished electrical limits come from the supplied EMAX specification workbook. Tested thrust values are the highest recorded values in the matching load-test workbooks.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"emx-kv-grid\"\u003e\n        \u003carticle class=\"emx-kv-card\"\u003e\n          \u003cdiv class=\"emx-num\"\u003e350\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-use\"\u003e6S–12S \/ 13-inch propeller\u003cbr\u003eLowest-KV option for the widest voltage range.\u003c\/div\u003e\n          \u003cdiv class=\"emx-kv-data\"\u003e\n\u003cdiv\u003e\n\u003csmall\u003ePeak current\u003c\/small\u003e\u003cstrong\u003e71A @ 12S\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eMax power\u003c\/small\u003e\u003cstrong\u003e3408W\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eResistance\u003c\/small\u003e\u003cstrong\u003e62mΩ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eIdle current\u003c\/small\u003e\u003cstrong\u003e1.0A @ 10V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"emx-tested\"\u003e\n\u003cb\u003eBench highlight:\u003c\/b\u003e 8.13kg thrust at 48V with HQ 1309 three-blade; 70.7A \/ 3393.6W.\u003c\/div\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"emx-kv-card\"\u003e\n          \u003cdiv class=\"emx-num\"\u003e420\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-use\"\u003e6S–10S \/ 13-inch propeller\u003cbr\u003eBalanced high-voltage option for large multirotors.\u003c\/div\u003e\n          \u003cdiv class=\"emx-kv-data\"\u003e\n\u003cdiv\u003e\n\u003csmall\u003ePeak current\u003c\/small\u003e\u003cstrong\u003e81A @ 10S\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eMax power\u003c\/small\u003e\u003cstrong\u003e3240W\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eResistance\u003c\/small\u003e\u003cstrong\u003e49mΩ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eIdle current\u003c\/small\u003e\u003cstrong\u003e1.2A @ 10V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"emx-tested\"\u003e\n\u003cb\u003eBench highlight:\u003c\/b\u003e 7.84kg thrust at 40V with HQ 1309 three-blade; 80.6A \/ 3224W.\u003c\/div\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"emx-kv-card\"\u003e\n          \u003cdiv class=\"emx-num\"\u003e520\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-use\"\u003e6S–8S \/ 13-inch propeller\u003cbr\u003eHigher-RPM option for medium-voltage systems.\u003c\/div\u003e\n          \u003cdiv class=\"emx-kv-data\"\u003e\n\u003cdiv\u003e\n\u003csmall\u003ePeak current\u003c\/small\u003e\u003cstrong\u003e75A @ 8S\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eMax power\u003c\/small\u003e\u003cstrong\u003e2400W\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eResistance\u003c\/small\u003e\u003cstrong\u003e38mΩ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eIdle current\u003c\/small\u003e\u003cstrong\u003e1.9A @ 10V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"emx-tested\"\u003e\n\u003cb\u003eBench highlight:\u003c\/b\u003e 6.35kg thrust at 32V with HQ 1309 three-blade; 73.9A \/ 2364.8W.\u003c\/div\u003e\n        \u003c\/article\u003e\n        \u003carticle class=\"emx-kv-card\"\u003e\n          \u003cdiv class=\"emx-num\"\u003e660\u003cspan\u003eKV\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-use\"\u003e6S \/ 13-inch propeller\u003cbr\u003eHighest-KV winding for dedicated 6S systems.\u003c\/div\u003e\n          \u003cdiv class=\"emx-kv-data\"\u003e\n\u003cdiv\u003e\n\u003csmall\u003ePeak current\u003c\/small\u003e\u003cstrong\u003e90A @ 6S\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eMax power\u003c\/small\u003e\u003cstrong\u003e2250W\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eResistance\u003c\/small\u003e\u003cstrong\u003e26mΩ\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003csmall\u003eIdle current\u003c\/small\u003e\u003cstrong\u003e2.3A @ 10V\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"emx-tested\"\u003e\n\u003cb\u003eBench highlight:\u003c\/b\u003e 5.98kg thrust at 25V with HQ 1309 three-blade; 85.3A \/ 2132.5W.\u003c\/div\u003e\n        \u003c\/article\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-media-section\" aria-label=\"EMAX ECO II 4215 KV guide comparing cell count and tested thrust for all four motor windings\"\u003e\n    \u003cdiv class=\"emx-media-wrap\"\u003e\n      \u003cfigure class=\"emx-media-frame emx-media-detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/exec-59131ede-3647-4599-a0d1-13f72fe82326.png?v=1787766817\" alt=\"EMAX ECO II 4215 KV selection guide for 350KV, 420KV, 520KV and 660KV motors with 13-inch propellers\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n      \u003cdiv class=\"emx-swipe\"\u003eSwipe horizontally to compare all four KV options\u003c\/div\u003e\n      \u003cdiv class=\"emx-media-copy\"\u003e\u003cp\u003e\u003cb\u003eChoose from the complete aircraft backward.\u003c\/b\u003e Match motor KV to battery voltage, propeller load, ESC rating, aircraft mass, airflow and required thrust. Published ranges are selection guidance; validate the final power system under realistic thermal conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\" style=\"background:#090b0d\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-heading-row\"\u003e\n        \u003cdiv\u003e\n\u003cdiv class=\"emx-kicker\"\u003e02 \/ Performance Envelope\u003c\/div\u003e\n\u003ch3\u003eMaximum tested thrust by KV.\u003c\/h3\u003e\n\u003c\/div\u003e\n        \u003cp\u003eEach bar shows the highest thrust recorded in the supplied test workbook for that winding. All bars share an 8.13kg scale.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"emx-bars\" aria-label=\"Maximum tested thrust for each EMAX ECO II 4215 KV option\"\u003e\n        \u003cdiv class=\"emx-bar-row\"\u003e\n\u003cdiv class=\"emx-bar-label\"\u003e\n\u003cstrong\u003e350KV\u003c\/strong\u003e\u003cspan\u003e48V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-track\"\u003e\u003cdiv class=\"emx-fill\" style=\"width:100%\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"emx-bar-value\"\u003e8.13kg\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-bar-row\"\u003e\n\u003cdiv class=\"emx-bar-label\"\u003e\n\u003cstrong\u003e420KV\u003c\/strong\u003e\u003cspan\u003e40V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-track\"\u003e\u003cdiv class=\"emx-fill\" style=\"width:96.4%\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"emx-bar-value\"\u003e7.84kg\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-bar-row\"\u003e\n\u003cdiv class=\"emx-bar-label\"\u003e\n\u003cstrong\u003e520KV\u003c\/strong\u003e\u003cspan\u003e32V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-track\"\u003e\u003cdiv class=\"emx-fill\" style=\"width:78.1%\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"emx-bar-value\"\u003e6.35kg\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-bar-row\"\u003e\n\u003cdiv class=\"emx-bar-label\"\u003e\n\u003cstrong\u003e660KV\u003c\/strong\u003e\u003cspan\u003e25V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"emx-track\"\u003e\u003cdiv class=\"emx-fill\" style=\"width:73.6%\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"emx-bar-value\"\u003e5.98kg\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cp class=\"emx-caption\"\u003eMaximum values above were recorded with an HQ 1309 three-blade propeller. Bench results are configuration-dependent and are not guaranteed aircraft-level performance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-kicker\"\u003e03 \/ Construction\u003c\/div\u003e\n\u003ch3\u003ePractical hardware for sustained multirotor loads.\u003c\/h3\u003e\n      \u003cdiv class=\"emx-feature-grid\"\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e01 \/ SHAFT\u003c\/div\u003e\n\u003ch4\u003eSteel Shaft\u003c\/h4\u003e\n\u003cp\u003eSteel shaft construction supports the long M6 threaded propeller interface used by the 4215 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e02 \/ FINISH\u003c\/div\u003e\n\u003ch4\u003eAnodized Structure\u003c\/h4\u003e\n\u003cp\u003eAnodized metal surfaces provide a durable finish for regular installation and service.\u003c\/p\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e03 \/ MOUNT\u003c\/div\u003e\n\u003ch4\u003e30 × 30mm Pattern\u003c\/h4\u003e\n\u003cp\u003eA four-hole 30 × 30mm mounting pattern provides a defined mechanical interface for the airframe.\u003c\/p\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e04 \/ WINDING\u003c\/div\u003e\n\u003ch4\u003eMulti-Strand Winding\u003c\/h4\u003e\n\u003cp\u003eMulti-strand winding is specified for the high-current operating range of this large outrunner.\u003c\/p\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e05 \/ BEARING\u003c\/div\u003e\n\u003ch4\u003ePrecision Bearing\u003c\/h4\u003e\n\u003cp\u003ePrecision bearing hardware supports smooth rotation under sustained propeller load.\u003c\/p\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-feature\"\u003e\n\u003cdiv class=\"emx-index\"\u003e06 \/ LEADS\u003c\/div\u003e\n\u003ch4\u003e300mm 16 AWG Wire\u003c\/h4\u003e\n\u003cp\u003eLong silicone motor leads provide routing flexibility during large-airframe power-system installation.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-media-section\" aria-label=\"Exploded EMAX ECO II 4215 construction diagram\"\u003e\n    \u003cdiv class=\"emx-media-wrap\"\u003e\n      \u003cfigure class=\"emx-media-frame emx-media-detail\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/Codex_Image_Aug_26_2026_01_52_50_PM.png?v=1787766817\" alt=\"Exploded EMAX ECO II 4215 outer-rotor motor showing the steel M6 shaft, anodized rotor bell, full-height 14-pole magnet ring, 12-slot wound stator, precision bearing and 30 by 30 millimeter motor mount\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n      \u003cdiv class=\"emx-swipe\"\u003eSwipe horizontally to inspect the component callouts\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\" style=\"background:#090b0d\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-kicker\"\u003e04 \/ Mechanical Data\u003c\/div\u003e\n\u003ch3\u003e4215 geometry and installation details.\u003c\/h3\u003e\n      \u003cdiv class=\"emx-spec-layout\"\u003e\n        \u003ctable class=\"emx-spec-table\" aria-label=\"EMAX ECO II 4215 mechanical specifications\"\u003e\u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eMotor model\u003c\/th\u003e\n\u003ctd\u003eEMAX ECO II 4215\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFramework\u003c\/th\u003e\n\u003ctd\u003e12N14P\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003cth\u003eMotor diameter\u003c\/th\u003e\n\u003ctd\u003eØ49.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor length\u003c\/th\u003e\n\u003ctd\u003e65.35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e209g; 660KV listed at 210g, without silicone wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing shaft\u003c\/th\u003e\n\u003ctd\u003eØ6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003cth\u003ePropeller shaft\u003c\/th\u003e\n\u003ctd\u003eM6 threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft direction\u003c\/th\u003e\n\u003ctd\u003eCW thread\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003cth\u003eMounting pattern\u003c\/th\u003e\n\u003ctd\u003e30 × 30mm, four-hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor leads\u003c\/th\u003e\n\u003ctd\u003e300mm 16 AWG silicone wire\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003cth\u003ePropeller specification\u003c\/th\u003e\n\u003ctd\u003e13 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKV options\u003c\/th\u003e\n\u003ctd\u003e350KV \/ 420KV \/ 520KV \/ 660KV\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\u003c\/table\u003e\n        \u003cdiv class=\"emx-spec-callout\"\u003e\n\u003cstrong\u003eOne platform, \u003cspan\u003efour voltage profiles.\u003c\/span\u003e\u003c\/strong\u003e\u003cp\u003eThe shared mechanical package makes it possible to select a winding around the intended voltage without changing the motor's basic airframe interface.\u003c\/p\u003e\n\u003cp\u003eThe published 6S–12S envelope belongs to the complete product family. Each individual KV option has its own cell-count limit shown in the electrical table below.\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"color:#fff\"\u003eInstallation note:\u003c\/b\u003e Confirm frame clearance, screw engagement, propeller retention, ESC headroom and cooling before operation.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-media-section\" aria-label=\"EMAX ECO II 4215 product platform graphic\"\u003e\n    \u003cdiv class=\"emx-media-wrap\"\u003e\n      \u003cfigure class=\"emx-media-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/exec-c5a2467a-df55-4c61-8a90-0380e0041249.png?v=1787766817\" alt=\"EMAX ECO II 4215 large multirotor motor platform with four KV options\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n      \u003cdiv class=\"emx-media-copy\"\u003e\u003cp\u003e\u003cb\u003ePerformance without unnecessary complexity.\u003c\/b\u003e The ECO II 4215 combines a consistent mechanical platform with four winding choices for large multirotor builders who need to match voltage, current and thrust targets.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-heading-row\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"emx-kicker\"\u003e05 \/ Electrical Specifications\u003c\/div\u003e\n\u003ch3\u003eKV-specific operating limits.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eUse only the voltage range published for the selected winding. The 520KV and 660KV cell references below are reconciled with the supplied 32V and 25V test files and the published maximum-power values.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"emx-table-scroll\"\u003e\u003ctable class=\"emx-load-table\" aria-label=\"EMAX ECO II 4215 electrical specifications by KV\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eKV\u003c\/th\u003e\n\u003cth\u003eCells\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eIdle Current\u003c\/th\u003e\n\u003cth\u003eResistance\u003c\/th\u003e\n\u003cth\u003ePeak Current\u003c\/th\u003e\n\u003cth\u003eMax Power\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e350KV\u003c\/td\u003e\n\u003ctd\u003e6S–12S\u003c\/td\u003e\n\u003ctd\u003e13\"\u003c\/td\u003e\n\u003ctd\u003e1.0A @ 10V\u003c\/td\u003e\n\u003ctd\u003e62mΩ\u003c\/td\u003e\n\u003ctd\u003e71A @ 12S\u003c\/td\u003e\n\u003ctd\u003e3408W @ 12S\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e420KV\u003c\/td\u003e\n\u003ctd\u003e6S–10S\u003c\/td\u003e\n\u003ctd\u003e13\"\u003c\/td\u003e\n\u003ctd\u003e1.2A @ 10V\u003c\/td\u003e\n\u003ctd\u003e49mΩ\u003c\/td\u003e\n\u003ctd\u003e81A @ 10S\u003c\/td\u003e\n\u003ctd\u003e3240W @ 10S\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e520KV\u003c\/td\u003e\n\u003ctd\u003e6S–8S\u003c\/td\u003e\n\u003ctd\u003e13\"\u003c\/td\u003e\n\u003ctd\u003e1.9A @ 10V\u003c\/td\u003e\n\u003ctd\u003e38mΩ\u003c\/td\u003e\n\u003ctd\u003e75A @ 8S\u003c\/td\u003e\n\u003ctd\u003e2400W @ 8S\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e660KV\u003c\/td\u003e\n\u003ctd\u003e6S\u003c\/td\u003e\n\u003ctd\u003e13\"\u003c\/td\u003e\n\u003ctd\u003e2.3A @ 10V\u003c\/td\u003e\n\u003ctd\u003e26mΩ\u003c\/td\u003e\n\u003ctd\u003e90A @ 6S\u003c\/td\u003e\n\u003ctd\u003e2250W @ 6S\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\" style=\"background:#090b0d\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-heading-row\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"emx-kicker\"\u003e06 \/ Bench Data\u003c\/div\u003e\n\u003ch3\u003eMaximum recorded propeller results.\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe expandable tables show the final, highest-load row from each propeller set in the supplied workbooks.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdetails class=\"emx-details\"\u003e\u003csummary\u003e\u003cspan\u003e350KV Load-Test Highlights\u003c\/span\u003e\u003cspan class=\"emx-meta\"\u003e48V \/ Three propellers\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"emx-detail-pad\"\u003e\n\u003cdiv class=\"emx-table-scroll\"\u003e\u003ctable class=\"emx-load-table\" aria-label=\"EMAX ECO II 4215 350KV maximum load test data\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003cth\u003eThrust\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e48V\u003c\/td\u003e\n\u003ctd\u003eGemfan 1310, 3-blade\u003c\/td\u003e\n\u003ctd\u003e62.2A\u003c\/td\u003e\n\u003ctd\u003e7500g\u003c\/td\u003e\n\u003ctd\u003e2985.6W\u003c\/td\u003e\n\u003ctd\u003e2.51g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e48V\u003c\/td\u003e\n\u003ctd\u003eHQ 1309, 3-blade\u003c\/td\u003e\n\u003ctd\u003e70.7A\u003c\/td\u003e\n\u003ctd\u003e8130g\u003c\/td\u003e\n\u003ctd\u003e3393.6W\u003c\/td\u003e\n\u003ctd\u003e2.40g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e48V\u003c\/td\u003e\n\u003ctd\u003e13 × 4 carbon-fiber, 2-blade\u003c\/td\u003e\n\u003ctd\u003e36.2A\u003c\/td\u003e\n\u003ctd\u003e6080g\u003c\/td\u003e\n\u003ctd\u003e1737.6W\u003c\/td\u003e\n\u003ctd\u003e3.50g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"emx-test-note\"\u003eFinal recorded row from each 350KV propeller series. RPM was marked \"Max\" rather than numerically reported at these endpoints.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n      \u003cdetails class=\"emx-details\"\u003e\u003csummary\u003e\u003cspan\u003e420KV Load-Test Highlights\u003c\/span\u003e\u003cspan class=\"emx-meta\"\u003e40V \/ Three propellers\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"emx-detail-pad\"\u003e\n\u003cdiv class=\"emx-table-scroll\"\u003e\u003ctable class=\"emx-load-table\" aria-label=\"EMAX ECO II 4215 420KV maximum load test data\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003cth\u003eThrust\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e40V\u003c\/td\u003e\n\u003ctd\u003eGemfan 1310, 3-blade\u003c\/td\u003e\n\u003ctd\u003e71.3A\u003c\/td\u003e\n\u003ctd\u003e7250g\u003c\/td\u003e\n\u003ctd\u003e2852W\u003c\/td\u003e\n\u003ctd\u003e2.54g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e40V\u003c\/td\u003e\n\u003ctd\u003eHQ 1309, 3-blade\u003c\/td\u003e\n\u003ctd\u003e80.6A\u003c\/td\u003e\n\u003ctd\u003e7840g\u003c\/td\u003e\n\u003ctd\u003e3224W\u003c\/td\u003e\n\u003ctd\u003e2.43g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e40V\u003c\/td\u003e\n\u003ctd\u003e13 × 4 carbon-fiber, 2-blade\u003c\/td\u003e\n\u003ctd\u003e42.0A\u003c\/td\u003e\n\u003ctd\u003e5780g\u003c\/td\u003e\n\u003ctd\u003e1680W\u003c\/td\u003e\n\u003ctd\u003e3.44g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"emx-test-note\"\u003eFinal recorded row from each 420KV propeller series. RPM was marked \"Max\" rather than numerically reported at these endpoints.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n      \u003cdetails class=\"emx-details\"\u003e\u003csummary\u003e\u003cspan\u003e520KV Load-Test Highlight\u003c\/span\u003e\u003cspan class=\"emx-meta\"\u003e32V \/ HQ 1309\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"emx-detail-pad\"\u003e\n\u003cdiv class=\"emx-table-scroll\"\u003e\u003ctable class=\"emx-load-table\" aria-label=\"EMAX ECO II 4215 520KV maximum load test data\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003cth\u003eThrust\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e32V\u003c\/td\u003e\n\u003ctd\u003eHQ 1309, 3-blade\u003c\/td\u003e\n\u003ctd\u003e73.9A\u003c\/td\u003e\n\u003ctd\u003e6350g\u003c\/td\u003e\n\u003ctd\u003e2364.8W\u003c\/td\u003e\n\u003ctd\u003e2.69g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"emx-test-note\"\u003eFinal recorded row from the supplied 520KV load-test series.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n      \u003cdetails class=\"emx-details\"\u003e\u003csummary\u003e\u003cspan\u003e660KV Load-Test Highlight\u003c\/span\u003e\u003cspan class=\"emx-meta\"\u003e25V \/ HQ 1309\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"emx-detail-pad\"\u003e\n\u003cdiv class=\"emx-table-scroll\"\u003e\u003ctable class=\"emx-load-table\" aria-label=\"EMAX ECO II 4215 660KV maximum load test data\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003ePropeller\u003c\/th\u003e\n\u003cth\u003eCurrent\u003c\/th\u003e\n\u003cth\u003eThrust\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd class=\"emx-v\"\u003e25V\u003c\/td\u003e\n\u003ctd\u003eHQ 1309, 3-blade\u003c\/td\u003e\n\u003ctd\u003e85.3A\u003c\/td\u003e\n\u003ctd\u003e5980g\u003c\/td\u003e\n\u003ctd\u003e2132.5W\u003c\/td\u003e\n\u003ctd\u003e2.80g\/W\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"emx-test-note\"\u003eFinal recorded row from the supplied 660KV load-test series.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-media-section\" aria-label=\"EMAX ECO II 4215 package contents\"\u003e\n    \u003cdiv class=\"emx-media-wrap\"\u003e\n      \u003cfigure class=\"emx-media-frame\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/exec-036db0c3-1a17-4595-a28e-695a1eccca2f.png?v=1787766817\" alt=\"EMAX ECO II 4215 motor package with four M4 by 12 millimeter screws, steel M6 nylock nut and propeller washer\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n      \u003cdiv class=\"emx-media-copy\"\u003e\u003cp\u003e\u003cb\u003ePackage contents:\u003c\/b\u003e one EMAX ECO II 4215 brushless motor, four M4 × 12mm screws, one steel M6 nylock nut and one propeller washer.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"emx-section\"\u003e\n    \u003cdiv class=\"emx-wrap\"\u003e\n      \u003cdiv class=\"emx-kicker\"\u003e07 \/ In The Box\u003c\/div\u003e\n\u003ch3\u003eCore installation hardware included.\u003c\/h3\u003e\n      \u003cdiv class=\"emx-package\"\u003e\n        \u003cdiv class=\"emx-package-item\"\u003e\n\u003cstrong\u003e1×\u003c\/strong\u003e\u003cspan\u003eEMAX ECO II 4215 brushless motor\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-package-item\"\u003e\n\u003cstrong\u003e4×\u003c\/strong\u003e\u003cspan\u003eM4 × 12mm mounting screws\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-package-item\"\u003e\n\u003cstrong\u003e1×\u003c\/strong\u003e\u003cspan\u003eSteel M6 nylock nut\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"emx-package-item\"\u003e\n\u003cstrong\u003e1×\u003c\/strong\u003e\u003cspan\u003ePropeller washer\u003c\/span\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003cfooter class=\"emx-foot\"\u003e\u003cdiv class=\"emx-wrap\"\u003e\u003cp\u003e\u003cb\u003eBench-test note:\u003c\/b\u003e Performance values are measured test data, not guaranteed aircraft-level performance. Current draw, thrust, efficiency, RPM and temperature vary with propeller, battery voltage and sag, ESC behavior, airflow, ambient conditions and test equipment. Select the motor winding, propeller, ESC, battery and cooling appropriate for the complete aircraft.\u003c\/p\u003e\u003c\/div\u003e\u003c\/footer\u003e\n\u003c\/div\u003e\n","brand":"Emax USA","offers":[{"title":"350KV","offer_id":49376433045643,"sku":"sku-48192634618092","price":27.99,"currency_code":"USD","in_stock":false},{"title":"420KV","offer_id":49376433078411,"sku":"sku-48192634650860","price":27.99,"currency_code":"USD","in_stock":false},{"title":"520KV","offer_id":49376433111179,"sku":"sku-48192634683628","price":27.99,"currency_code":"USD","in_stock":false},{"title":"660KV","offer_id":49376433143947,"sku":"sku-48192634716396","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/2200\/1803\/files\/ECOII-4715-350KV_14_f24f3c16-5f03-4e02-86d0-1484bb09547e.jpg?v=1789587558","url":"https:\/\/webleedfpv.com\/products\/emax-ecoii-4215-brushless-motor","provider":"weBLEEDfpv","version":"1.0","type":"link"}