{"product_id":"siemens-1fk7084-2ac71-1qa0-servo-motor","title":"Siemens 1FK7084-2AC71-1QA0 SIMOTICS S 1FK7-CT 3.1 kW 20 Nm 2000 rpm Servo Motor","description":"\u003cp\u003eThe Siemens 1FK7084-2AC71-1QA0 is a SIMOTICS S 1FK7-CT synchronous servo motor rated 3.1 kW with 20 Nm standstill torque at 100K and a 2,000 rpm rated speed. It runs on a 600 V DC link, uses natural cooling, and carries an IP64 enclosure with an absolute 20-bit single-turn DRIVE-CLiQ encoder (AS20DQI). This variant ships without a holding brake.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e1FK7084-2AC71-1QA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSIMOTICS S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct designation\u003c\/td\u003e\n\u003ctd\u003e1FK7-CT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated power (PN)\u003c\/td\u003e\n\u003ctd\u003e3.1 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC link voltage (UDC)\u003c\/td\u003e\n\u003ctd\u003e600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandstill torque (M0) at 100K\u003c\/td\u003e\n\u003ctd\u003e20 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated speed (NN)\u003c\/td\u003e\n\u003ctd\u003e2,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of poles\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated current\u003c\/td\u003e\n\u003ctd\u003e6.7 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoment of inertia\u003c\/td\u003e\n\u003ctd\u003e32.500 kgcm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e93.0 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque constant\u003c\/td\u003e\n\u003ctd\u003e2.36 Nm\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage constant at 20°C\u003c\/td\u003e\n\u003ctd\u003e152.0 V\/1000 min⁻¹\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWinding resistance at 20°C\u003c\/td\u003e\n\u003ctd\u003e0.58 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotating field inductance\u003c\/td\u003e\n\u003ctd\u003e12.0 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical time constant\u003c\/td\u003e\n\u003ctd\u003e20.50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical time constant\u003c\/td\u003e\n\u003ctd\u003e1.02 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal time constant\u003c\/td\u003e\n\u003ctd\u003e55 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft torsional stiffness\u003c\/td\u003e\n\u003ctd\u003e93,000 Nm\/rad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e18.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft height\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eNatural cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of protection\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing color\u003c\/td\u003e\n\u003ctd\u003eAnthracite (RAL 7016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncoder\u003c\/td\u003e\n\u003ctd\u003eAbsolute single-turn, 20-bit, DRIVE-CLiQ interface (AS20DQI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHolding brake\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft\u003c\/td\u003e\n\u003ctd\u003eFeather key, tolerance N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower connector\u003c\/td\u003e\n\u003ctd\u003e1, rotatable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eIMB5 (IM V1, IM V3), flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eAt 20 Nm this is the highest standstill torque in the 1FK7-CT family covered here, built on the same 80 mm shaft height as the 12 Nm and 16 Nm frames but with a longer lamination stack — 32.500 kgcm² inertia and 18.3 kg net weight versus 15.6-15.9 kg for the 16 Nm motors. The 93,000 Nm\/rad torsional stiffness and 2.36 Nm\/A torque constant fit direct-drive or low-ratio geared axes that need high torque at moderate speed rather than high rpm.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eTypical use: heavier direct-coupled axes on machine tools, winders, and material-handling equipment where 20 Nm standstill torque at 2,000 rpm matches the load without a gearbox.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960355938587,"sku":"1FK7084-2AC71-1QA0","price":2164.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-1fk7084-2ac71-1qa0-1fk7-ct-servo-motor.png?v=1789757907","url":"https:\/\/stoklink.com\/products\/siemens-1fk7084-2ac71-1qa0-servo-motor","provider":"Stoklink","version":"1.0","type":"link"}