{"product_id":"sito-drive-cs-20-ii-reducer","title":"SITO DRIVE CS-20-II Reducer, 30–120 Transmission Ratios for Robotics","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca class=\"product-context-link\" href=\"https:\/\/rcdrone.top\/collections\/sito-drive\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003eSITO DRIVE\u003c\/a\u003e CS-20-II reducer is offered with transmission-ratio options of 30, 50, 80, 100, and 120 for \u003ca class=\"product-context-link\" href=\"https:\/\/rcdrone.top\/collections\/robotics\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003erobotics\u003c\/a\u003e applications including humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, and ARU robots. Select the ratio according to the model-specific torque ratings and backlash values listed below; all listed options share a 6500 rpm maximum allowable input speed and 3500 rpm allowable average speed.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSelectable transmission ratios: 30, 50, 80, 100, or 120.\u003c\/li\u003e\n\u003cli\u003eMaximum allowable input speed: 6500 rpm for every listed ratio.\u003c\/li\u003e\n\u003cli\u003eAllowable average speed: 3500 rpm for every listed ratio.\u003c\/li\u003e\n\u003cli\u003eBacklash: ≤20 arcsec for ratios 30 and 50; ≤10 arcsec for ratios 80, 100, and 120.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eRatio 30\u003c\/th\u003e\n\u003cth\u003eRatio 50\u003c\/th\u003e\n\u003cth\u003eRatio 80\u003c\/th\u003e\n\u003cth\u003eRatio 100\u003c\/th\u003e\n\u003cth\u003eRatio 120\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCS-20-II\u003c\/td\u003e\n\u003ctd\u003eCS-20-II\u003c\/td\u003e\n\u003ctd\u003eCS-20-II\u003c\/td\u003e\n\u003ctd\u003eCS-20-II\u003c\/td\u003e\n\u003ctd\u003eCS-20-II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission ratio\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated torque at 2000 r\/min input\u003c\/td\u003e\n\u003ctd\u003e15 Nm\u003c\/td\u003e\n\u003ctd\u003e25 Nm\u003c\/td\u003e\n\u003ctd\u003e34 Nm\u003c\/td\u003e\n\u003ctd\u003e40 Nm\u003c\/td\u003e\n\u003ctd\u003e47 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak torque allowed during start\/stop\u003c\/td\u003e\n\u003ctd\u003e27 Nm\u003c\/td\u003e\n\u003ctd\u003e56 Nm\u003c\/td\u003e\n\u003ctd\u003e74 Nm\u003c\/td\u003e\n\u003ctd\u003e82 Nm\u003c\/td\u003e\n\u003ctd\u003e87 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable average load torque\u003c\/td\u003e\n\u003ctd\u003e20 Nm\u003c\/td\u003e\n\u003ctd\u003e34 Nm\u003c\/td\u003e\n\u003ctd\u003e47 Nm\u003c\/td\u003e\n\u003ctd\u003e49 Nm\u003c\/td\u003e\n\u003ctd\u003e55 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstantaneous maximum torque\u003c\/td\u003e\n\u003ctd\u003e50 Nm\u003c\/td\u003e\n\u003ctd\u003e98 Nm\u003c\/td\u003e\n\u003ctd\u003e121 Nm\u003c\/td\u003e\n\u003ctd\u003e147 Nm\u003c\/td\u003e\n\u003ctd\u003e160 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable input speed\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable average speed\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoment of inertia\u003c\/td\u003e\n\u003ctd\u003e0.193 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.193 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.193 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.193 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.193 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003e≤20 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤20 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHumanoid robots: select the required ratio and corresponding torque values for robotic joint-drive design.\u003c\/li\u003e\n\u003cli\u003eRobotic arms: use the ratio-specific backlash and torque data when specifying articulated-axis reduction.\u003c\/li\u003e\n\u003cli\u003eExoskeletons, quadruped robots, AGV vehicles, and ARU robots: select from the available 30, 50, 80, 100, and 120 transmission ratios to match the required reduction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDownloads\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-stp.step?v=1791390357\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO CS 20 II Reducer — 3D Model (STEP)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-draw-product-installation-drawing.pdf?v=1791390363\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO CS 20 II Draw instalation drawing — Installation Drawing (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003ch3\u003eProduct Video\u003c\/h3\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/c67a5b35bde34559932cc03793471a77.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003e\n  Your browser does not support the video tag.\n\u003c\/video\u003e\u003c\/figure\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/2092e1fd6fdc46e38630b7a7681b3fd5.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003e\n  Your browser does not support the video tag.\n\u003c\/video\u003e\u003c\/figure\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/dcd0693fb83a4e1099c31879cefe2ce4.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003e\n  Your browser does not support the video tag.\n\u003c\/video\u003e\u003c\/figure\u003e\n\u003ch3\u003eSpecifications and Performance\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"SITO DRIVE reducer family graphic with ratio and torque range text\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-30-120-tra-ab8a7a6424.webp?v=1791390429\"\u003e\u003cfigcaption\u003eThe displayed strain wave drive reducer family lists reduction ratios of 30, 50, 80, 100, and 120.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eAdditional Product Details\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"CS Mini-2.5 reducer promotional graphic for a robotic hand\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-30-120-tra-5a6dabc19c.webp?v=1791390432\"\u003e\u003cfigcaption\u003eCS Mini-2.5 ultra-micro strain wave drive reducer promotional graphic\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Reducer manufacturing and inspection promotional graphic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-30-120-tra-661150acba.webp?v=1791390444\"\u003e\u003cfigcaption\u003eManufacturing and inspection imagery with higher industry standards promotional text\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eDimensions and Construction\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Small reducer models beside a U.S. dime with an 11 mm claim\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-30-120-tra-0d5d333a68.webp?v=1791390436\"\u003e\u003cfigcaption\u003eSmall strain wave reducer models beside a U.S. dime, with 11 mm diameter claim\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eApplication Examples\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Industrial robotic arm harmonic reducer application illustration\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-cs-20-ii-reducer-30-120-tra-1f07f0e1bb.webp?v=1791390440\"\u003e\u003cfigcaption\u003eIndustrial robotic arm illustration describing harmonic reducers as robot core components\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"SITO DRIVE","offers":[{"title":"30","offer_id":67747961995488,"sku":"SIT-9DECA45A","price":416.4,"currency_code":"USD","in_stock":true},{"title":"50","offer_id":67747962028256,"sku":"SIT-3A831459","price":438.0,"currency_code":"USD","in_stock":true},{"title":"80","offer_id":67747962061024,"sku":"SIT-7969D6A6","price":445.2,"currency_code":"USD","in_stock":true},{"title":"100","offer_id":67747962093792,"sku":"SIT-5E386992","price":452.4,"currency_code":"USD","in_stock":true},{"title":"120","offer_id":67747962126560,"sku":"SIT-2A5B8700","price":466.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/sito-drive-cs-20-ii-reducer-angled-yellow-ring-01.webp?v=1791390314","url":"https:\/\/rcdrone.top\/products\/sito-drive-cs-20-ii-reducer","provider":"RCDrone","version":"1.0","type":"link"}