{"product_id":"1pcs-new-for-maili-120w-constant-speed-motor-5rk120ra-cf-220v","title":"MAILI 120W Constant-Speed Motor 5RK120RA-CF, 220V","description":"\u003c!-- SEO Introduction --\u003e\n\u003csection\u003e\n  \u003ch2 style=\"color: #0056b3; border-left: 5px solid #16c8c8; padding-left: 15px;\"\u003eMAILI 120W Constant-Speed AC Motor 5RK120RA-CF\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eMAILI 5RK120RA-CF\u003c\/strong\u003e is a high-torque, 120W single-phase induction motor designed for continuous industrial operations. Featuring a robust 90mm frame size, this \u003cstrong\u003e220V AC constant-speed motor\u003c\/strong\u003e is optimized for material handling, food processing, and packaging automation. Built with high-grade copper windings and precision ball bearings, the 5RK120RA-CF ensures stable performance and long-term reliability in \u003cstrong\u003efactory automation (FA)\u003c\/strong\u003e and \u003cstrong\u003econveyor belt systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003chr style=\"border: 0; height: 1px; background: #eee; margin: 25px 0;\"\u003e\n\n\u003c!-- Technical Specifications --\u003e\n\u003csection\u003e\n  \u003ch3 style=\"color: #0056b3;\"\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003cdiv style=\"overflow-x: auto;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background-color: #16c8c8; color: white; text-align: left;\"\u003e\n          \u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n          \u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSpecification Details\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e5RK120RA-CF (Induction Type)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eOutput Power\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e120W\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eVoltage \/ Frequency\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSingle-Phase 220V AC | 50\/60Hz\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eRated Speed\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1300 RPM (50Hz) \/ 1550 RPM (60Hz)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCapacitor Required\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e8.0μF \/ 450V\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eDuty Cycle\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eContinuous (S1)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInsulation Class\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eClass B (130°C)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003chr style=\"border: 0; height: 1px; background: #eee; margin: 25px 0;\"\u003e\n\n\u003c!-- Koeed B2B Tool: Torque \u0026 RPM Calculator --\u003e\n\u003csection style=\"background-color: #f9f9f9; padding: 20px; border: 1px solid #16c8c8; border-radius: 4px;\"\u003e\n  \u003ch3 style=\"color: #0056b3; margin-top: 0;\"\u003eFA Engineer Toolbox: Gearbox Output Estimator\u003c\/h3\u003e\n  \u003cp style=\"font-size: 0.9em; color: #666;\"\u003eEstimate your final torque and speed when pairing the 5RK120RA-CF with a gearbox.\u003c\/p\u003e\n  \n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 20px;\"\u003e\n    \u003cdiv\u003e\n      \u003clabel style=\"display: block; margin-bottom: 8px; font-weight: bold;\"\u003eReduction Ratio (1:X)\u003c\/label\u003e\n      \u003cinput type=\"range\" id=\"ratioRange\" min=\"3\" max=\"200\" value=\"50\" style=\"width: 100%; accent-color: #16c8c8;\"\u003e\n      \u003cdiv style=\"text-align: center; font-weight: bold; color: #16c8c8; margin-top: 5px;\"\u003eRatio 1: \u003cspan id=\"ratioValue\"\u003e50\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: white; padding: 15px; border-radius: 4px; box-shadow: inset 0 0 5px rgba(0,0,0,0.05);\"\u003e\n      \u003cdiv style=\"margin-bottom: 10px;\"\u003eOutput Speed: \u003cstrong style=\"color: #0056b3;\"\u003e\u003cspan id=\"outRPM\"\u003e26\u003c\/span\u003e RPM\u003c\/strong\u003e\n\u003c\/div\u003e\n      \u003cdiv\u003eEst. Torque: \u003cstrong style=\"color: #0056b3;\"\u003e\u003cspan id=\"outTorque\"\u003e38.4\u003c\/span\u003e N·m\u003c\/strong\u003e\n\u003c\/div\u003e\n      \u003cp style=\"font-size: 0.75em; color: #999; margin-top: 10px;\"\u003e*Calculation based on 1300RPM motor speed and 85% gear efficiency.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cscript\u003e\n    const ratioRange = document.getElementById('ratioRange');\n    const ratioValue = document.getElementById('ratioValue');\n    const outRPM = document.getElementById('outRPM');\n    const outTorque = document.getElementById('outTorque');\n\n    \/\/ Base values for 120W motor\n    const baseRPM = 1300;\n    const baseTorque = 0.9; \/\/ Nominal N.m for 120W motor\n\n    ratioRange.addEventListener('input', function() {\n      const ratio = this.value;\n      ratioValue.innerText = ratio;\n      \n      const rpm = Math.round(baseRPM \/ ratio);\n      const torque = (baseTorque * ratio * 0.85).toFixed(1); \/\/ 85% efficiency factor\n      \n      outRPM.innerText = rpm;\n      outTorque.innerText = torque;\n    });\n  \u003c\/script\u003e\n\u003c\/section\u003e\n\n\u003chr style=\"border: 0; height: 1px; background: #eee; margin: 25px 0;\"\u003e\n\n\u003c!-- Application \u0026 Reliability --\u003e\n\u003csection\u003e\n  \u003ch3 style=\"color: #0056b3;\"\u003eIndustrial Application \u0026amp; Reliability\u003c\/h3\u003e\n  \n  \u003cp\u003eThe 5RK120RA-CF is engineered for high-duty cycles where consistent torque delivery is paramount. Unlike reversible motors, the RK series (Induction Motor) provides superior thermal stability for one-way continuous motion.\u003c\/p\u003e\n  \u003cul style=\"line-height: 1.8;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Efficiency:\u003c\/strong\u003e Optimized rotor design minimizes eddy current loss, reducing surface temperature during 24\/7 operation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVersatile Mounting:\u003c\/strong\u003e Standard 90mm flange compatible with various planetary and right-angle gearheads.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Built-in thermal protector automatically shuts down the motor if internal temperatures exceed safety thresholds.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003chr style=\"border: 0; height: 1px; background: #eee; margin: 25px 0;\"\u003e\n\n\u003c!-- Troubleshooting FAQ --\u003e\n\u003csection\u003e\n  \u003ch3 style=\"color: #0056b3;\"\u003eMaintenance \u0026amp; Troubleshooting FAQ\u003c\/h3\u003e\n  \u003cdiv style=\"border-left: 4px solid #16c8c8; padding-left: 15px;\"\u003e\n    \u003cp\u003e\u003cstrong\u003eQ1: The motor hums but does not rotate upon power-up.\u003c\/strong\u003e\u003cbr\u003e\n    \u003cspan style=\"font-size: 0.9em; color: #555;\"\u003eA: Inspect the 8.0μF capacitor. If the capacitor is aged or leaked, the starting torque will be insufficient. Also, verify that the 220V AC input is within ±10% tolerance.\u003c\/span\u003e\u003c\/p\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ2: How to change the rotation direction of 5RK120RA-CF?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cspan style=\"font-size: 0.9em; color: #555;\"\u003eA: Swap the connection of the capacitor leads to the motor terminals. Note: Induction motors should be fully stopped before reversing to avoid gear damage.\u003c\/span\u003e\u003c\/p\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ3: The motor housing is hot to the touch (approx. 60°C). Is this normal?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cspan style=\"font-size: 0.9em; color: #555;\"\u003eA: Yes. Class B insulation allows for a temperature rise of up to 80°C above ambient. If the housing exceeds 90°C, check for mechanical overload or blocked ventilation.\u003c\/span\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e","brand":"KOEED","offers":[{"title":"Default Title","offer_id":43903160647865,"sku":"305295056553","price":325.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/s-l1600_0f7f56ed-b3d6-45c1-b2a9-6562ffcbeb0e.jpg?v=1712726093","url":"https:\/\/koeed.com\/bn\/products\/1pcs-new-for-maili-120w-constant-speed-motor-5rk120ra-cf-220v","provider":"KOEED","version":"1.0","type":"link"}