{"product_id":"unitree-a1-motor","title":"Unitree A1 Motor A1 Integrated RS-485 Motor Module 33.5NM 21.0rad\/s(@24VDC) 12-30VDC 605g","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Unitree A1 Motor is an integrated motor module designed for robotics joints and other large-load machinery. It features a planetary reducer, ultra-thin design, and a compact body weight of about 605g, with RS-485 communication and real-time sensor feedback (torque, angle, angular velocity, angular acceleration, temperature).\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStable and efficient; maintenance convenient\u003c\/li\u003e\n\u003cli\u003eUltra-thin design fuselage\u003c\/li\u003e\n\u003cli\u003eExtreme-optimized planetary reducer\u003c\/li\u003e\n\u003cli\u003eStrong power\u003c\/li\u003e\n\u003cli\u003eHighly integrated structure\u003c\/li\u003e\n\u003cli\u003eCrossed roller bearing\u003c\/li\u003e\n\u003cli\u003eTemperature sensor and position sensor\u003c\/li\u003e\n\u003cli\u003eLow copper consumption coil\u003c\/li\u003e\n\u003cli\u003eIntegrated design: motor body and controller in one; plug to achieve plug and play\u003c\/li\u003e\n\u003cli\u003eQuick disassembly structure design for easier maintenance\u003c\/li\u003e\n\u003cli\u003eClosed design to avoid debris entering the motor inside\u003c\/li\u003e\n\u003cli\u003eOversized industrial grade crossed roller bearings: resistant to axial impact, high precision, and long life\u003c\/li\u003e\n\u003cli\u003eReal-time reading of sensor data\u003cbr\u003e\u003cstrong\u003eMotor sensing feedback:\u003c\/strong\u003e Torque, Angle, Angular Velocity, Angular Acceleration, Temperature\u003cbr\u003e\u003cstrong\u003eMotor control instruction:\u003c\/strong\u003e Torque, Angle, Angular Velocity, Stiffness, Damping\n  \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWindings \u0026amp; Stator Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe electronic wire adopts dip paint technology to better dissipate heat from the motor temperature.\u003c\/li\u003e\n\u003cli\u003eSingle-strand winding reduces resistance loss and reduces the current interference between copper wires while making the motor more beautiful.\u003c\/li\u003e\n\u003cli\u003eThe stator has electrophoresis and high-temperature coating process that can pass the 48 hours salt spray test with the superior rust resistance and insulation performance.\u003c\/li\u003e\n\u003cli\u003eThe 0.2 mm silicon steel sheet material is selected to reduce iron consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance Text (from product materials)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInstant Burst of Power: can be adapted to a variety of large-load machinery and equipment such as foot robots, with greater torque and more stability.\u003c\/li\u003e\n\u003cli\u003eThe output maximum torque is 33.5 N.m; maximum joint speed is 21 rad\/s.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineering\/Analysis Figures (text shown in product materials)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptimize the Magnetic Circuit Design: Improve the flux utilization, sine the counter electric potential, low Cogging Torque.\u003cbr\u003e\u003cstrong\u003eTime\u003c\/strong\u003e =4742857.14285713ns; \u003cstrong\u003eSpeed\u003c\/strong\u003e =1000.000000rpm; \u003cstrong\u003ePosition\u003c\/strong\u003e =34.885713deg\n  \u003c\/li\u003e\n\u003cli\u003eMotor Streamline Diagram: Thousands time of motor streamline calculations guarantee the stability and reliability of the motor in any state of motion.\u003c\/li\u003e\n\u003cli\u003eTemperature Monitoring Sensor: The motor has its own temperature monitoring sensor to effectively prevent the motor from being damaged due to temperature abnormalities.\u003c\/li\u003e\n\u003cli\u003eFOC Control Characteristic Plot: FOC control, low torque ripple, low noise, smoother operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eAbout 605g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Rotational Speed\u003c\/td\u003e\n\u003ctd\u003e21.0rad\/s(@24VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduction Ratio\u003c\/td\u003e\n\u003ctd\u003e1:9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Torque\u003c\/td\u003e\n\u003ctd\u003e33.5NM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque Constant\u003c\/td\u003e\n\u003ctd\u003e0.8732Nm\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Mode\u003c\/td\u003e\n\u003ctd\u003eRS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Control Frequency\u003c\/td\u003e\n\u003ctd\u003e1000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Encoder Resolution\u003c\/td\u003e\n\u003ctd\u003e15bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd\u003e12V~30VDC; 24VDC recommend\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Perceptual Feedback\u003c\/td\u003e\n\u003ctd\u003eTorque, Angle, Angular Velocity, Angular Acceleration, Temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Control instruction\u003c\/td\u003e\n\u003ctd\u003eTorque, Angle, Angular Velocity, Stiffness, Damping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHumanoid robots\u003c\/li\u003e\n\u003cli\u003eRobotic arms\u003c\/li\u003e\n\u003cli\u003eExoskeletons\u003c\/li\u003e\n\u003cli\u003eQuadruped robots\u003c\/li\u003e\n\u003cli\u003eAGV vehicles\u003c\/li\u003e\n\u003cli\u003eARU robots\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh-Speed Single-Channel RS-485 Communication Module x 1\u003c\/li\u003e\n\u003cli\u003eXT30 Power Cable x 1\u003c\/li\u003e\n\u003cli\u003eGH1.25 Data Cable x 1\u003c\/li\u003e\n\u003cli\u003eXT30 (2 + 2) Power \u0026amp; Signal Cable x 1\u003c\/li\u003e\n\u003cli\u003eXT30 (2 + 2) Adapter Board x 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDocuments\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/Unitree_A1_Motor.STEP?v=1757516776\" rel=\"noopener\" target=\"_blank\"\u003eUnitree_A1_Motor.stp\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/Unitee_A1_Motor_instalation_drawing.pdf?v=1749306591\" rel=\"noopener\" target=\"_blank\"\u003eUnitee_A1_Motor_instalation_drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor pre-sales and integration support (power, RS-485 wiring, and control bring-up), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Unitree A1 motor module with metal front flange and black housing, compact integrated design (605g)\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor.jpg?v=1779762762\"\u003e\u003cp\u003eThe Unitree A1 motor’s compact integrated housing and front mounting flange support tidy, space-conscious installations.\u003c\/p\u003e\n\u003cimg alt=\"Unitree A1 RS-485 motor module feature icons: strong power, integrated design, crossed roller bearing, sensors\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor_7873874d-93e5-4f31-89e6-22f448776d1e.jpg?v=1779762777\"\u003e\u003cp\u003eThe Unitree A1 integrated RS-485 motor module lists crossed roller bearing, temperature and position sensing, and a low copper consumption coil.\u003c\/p\u003e\n\u003cimg alt=\"Unitree A1 Motor\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/A1-3.jpg?v=1749316601\"\u003e\u003cimg alt=\"Unitree A1 integrated RS-485 motor module close-up with windings and stator build details on white background\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor_96b9e320-35f0-46fa-95a2-fe19fb706c85.jpg?v=1779762824\"\u003e\u003cp\u003eThe Unitree A1 integrated motor module uses coated windings and a treated stator design, including a 0.2 mm silicon steel sheet material called out for reduced iron consumption.\u003c\/p\u003e\n\u003cimg alt=\"Unitree A1 integrated motor module with round housing, connector port, and notes on sensor feedback data\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor_012750dd-5757-444c-b09e-9539e80128ad.jpg?v=1779762859\"\u003e\u003cp\u003eThe Unitree A1 integrated motor module combines motor and controller in one unit and supports real-time sensor feedback such as torque, angle, velocity, and temperature.\u003c\/p\u003e\n\u003cimg alt=\"Magnetic circuit simulation diagram for Unitree A1 motor stator ring with color flux scale and speed readout\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor-A1-Integrated-RS-485-Motor-Module-335NM_d67ff1c3-1e20-4673-a927-760ab9570868.webp?v=1779763282\"\u003e\u003cp\u003eUnitree A1 motor design visualization shows the stator magnetic circuit with a color flux distribution scale for reference.\u003c\/p\u003e\n\u003cimg alt=\"Motor streamline diagram showing velocity streamlines around a rotor, with color scale and axis indicators\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/A1-7.jpg?v=1749316601\"\u003e\u003cp\u003eMotor velocity streamline visualization helps assess airflow and flow patterns around the rotor during operation.\u003c\/p\u003e\n\u003cimg alt=\"Thermal contour graphic of Unitree A1 RS-485 motor module showing temperature monitoring sensor heat map\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/A1-8.jpg?v=1749316601\"\u003e\u003cp\u003eThe Unitree A1 integrated motor module includes a built-in temperature monitoring sensor to help detect overheating conditions.\u003c\/p\u003e\n\u003cimg alt=\"FOC control characteristic plot showing current, speed, output power and efficiency versus torque (N·m)\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/A1-9.jpg?v=1749316601\"\u003e\u003cp\u003eThe FOC control characteristic plot maps input DC current, RS speed (rpm), output power (W), and efficiency (%) against torque (N·m) for reference during tuning and load planning.\u003c\/p\u003e\n\u003cimg alt=\"Packing list for Unitree A1 RS-485 motor module kit with RS-485 module, XT30 cables, GH1.25 cable and adapter board\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Unitree-A1-Motor.png?v=1779762962\"\u003e\u003cp\u003eThe kit includes a single-channel RS-485 communication module plus XT30 power\/signal leads, a GH1.25 data cable, and an XT30 (2+2) adapter board.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Unitree","offers":[{"title":"A1 Motor","offer_id":52739635118304,"sku":"Unitree_A1_Mo_ec86aa-1","price":775.0,"currency_code":"USD","in_stock":true},{"title":"A1 Motor With Packing List 1","offer_id":52739635151072,"sku":"Unitree_A1_Mo_ec86aa-2","price":845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/Unitree-A1-Motor-A1-Integrated-RS-485-Motor-Module-335NM.png?v=1779763098","url":"https:\/\/rcdrone.top\/sw\/products\/unitree-a1-motor","provider":"RCDrone","version":"1.0","type":"link"}