{"product_id":"mitsubishi-m80-built-in-spindle-motor-sj-2b6706tk-copy","title":"Mitsubishi M80 Built-IN Spindle Motor SJ-2B6721TK","description":"\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) pb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-17\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-17\" data-turn-id-container=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-17\" data-testid=\"conversation-turn-216\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"b4fe0dba-736f-472a-8dbf-905adcd280c1\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-10\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-10\" data-turn-id-container=\"request-6a0c4d60-5b54-83ab-a6f9-8a0b16859f27-10\" data-testid=\"conversation-turn-242\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"bbd610c4-b52f-4df5-bc83-976d580ec8ed\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"14ygt3x\" data-start=\"0\" data-end=\"80\"\u003e🔧 Mitsubishi SJ-2B6721TK – Description (SJ-B Series Built-in Spindle Motor)\u003c\/h3\u003e\n\u003cp data-start=\"82\" data-end=\"309\"\u003eThe \u003cstrong data-start=\"86\" data-end=\"101\"\u003eSJ-2B6721TK\u003c\/strong\u003e is a \u003cstrong data-start=\"107\" data-end=\"147\"\u003ehigh-capacity built-in spindle motor\u003c\/strong\u003e from Mitsubishi Electric’s \u003cstrong data-start=\"175\" data-end=\"190\"\u003eSJ-B series\u003c\/strong\u003e, designed for CNC machine tool spindles where \u003cstrong data-start=\"237\" data-end=\"295\"\u003ehigh torque at low speed and high stability under load\u003c\/strong\u003e are required.\u003c\/p\u003e\n\u003cp data-start=\"311\" data-end=\"494\"\u003eIt is a \u003cstrong data-start=\"319\" data-end=\"382\"\u003edual-coil (low-speed \/ high-speed) integrated spindle motor\u003c\/strong\u003e, used directly inside the machine spindle structure for compact, rigid, and high-performance machining systems.\u003c\/p\u003e\n\u003chr data-start=\"496\" data-end=\"499\"\u003e\n\u003ch3 data-section-id=\"kx01fl\" data-start=\"501\" data-end=\"523\"\u003e⚙️ Key Description\u003c\/h3\u003e\n\u003cul data-start=\"525\" data-end=\"808\"\u003e\n\u003cli data-section-id=\"tw4l1t\" data-start=\"525\" data-end=\"568\"\u003e\n\u003cstrong data-start=\"527\" data-end=\"538\"\u003eSeries:\u003c\/strong\u003e SJ-B Built-in Spindle Motor\u003c\/li\u003e\n\u003cli data-section-id=\"572zt0\" data-start=\"569\" data-end=\"637\"\u003e\n\u003cstrong data-start=\"571\" data-end=\"580\"\u003eType:\u003c\/strong\u003e Dual winding (coil changeover: low-speed \u0026amp; high-speed)\u003c\/li\u003e\n\u003cli data-section-id=\"1r5d46c\" data-start=\"638\" data-end=\"736\"\u003e\n\u003cstrong data-start=\"640\" data-end=\"656\"\u003eApplication:\u003c\/strong\u003e Heavy-duty CNC machining centers, milling machines, high-load spindle systems\u003c\/li\u003e\n\u003cli data-section-id=\"1xtsypw\" data-start=\"737\" data-end=\"808\"\u003e\n\u003cstrong data-start=\"739\" data-end=\"754\"\u003eDrive unit:\u003c\/strong\u003e Typically used with \u003cstrong data-start=\"775\" data-end=\"792\"\u003eMDS-D2-SP-320\u003c\/strong\u003e spindle drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"810\" data-end=\"813\"\u003e\n\u003ch3 data-section-id=\"4ligfa\" data-start=\"815\" data-end=\"847\"\u003e⚡ Functional Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"849\" data-end=\"1103\"\u003e\n\u003cli data-section-id=\"1m1vgpn\" data-start=\"849\" data-end=\"900\"\u003eDesigned for \u003cstrong data-start=\"864\" data-end=\"900\"\u003ehigh-torque cutting at low speed\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"kgfljv\" data-start=\"901\" data-end=\"1032\"\u003eSwitchable operation between:\n\u003cul data-start=\"935\" data-end=\"1032\"\u003e\n\u003cli data-section-id=\"1ii3vjg\" data-start=\"935\" data-end=\"985\"\u003e\u003cstrong data-start=\"937\" data-end=\"985\"\u003eLow-speed coil → high torque rough machining\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"dkhqwy\" data-start=\"988\" data-end=\"1032\"\u003e\u003cstrong data-start=\"990\" data-end=\"1032\"\u003eHigh-speed coil → finishing operations\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w9h7up\" data-start=\"1033\" data-end=\"1103\"\u003eBuilt for \u003cstrong data-start=\"1045\" data-end=\"1103\"\u003econtinuous industrial duty with high thermal stability\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1105\" data-end=\"1108\"\u003e\n\u003ch3 data-section-id=\"iqddrx\" data-start=\"1110\" data-end=\"1141\"\u003e📊 Key Performance Overview\u003c\/h3\u003e\n\u003cul data-start=\"1143\" data-end=\"1524\"\u003e\n\u003cli data-section-id=\"12pj72s\" data-start=\"1143\" data-end=\"1295\"\u003e\n\u003cstrong data-start=\"1145\" data-end=\"1162\"\u003ePower output:\u003c\/strong\u003e\n\u003cul data-start=\"1165\" data-end=\"1295\"\u003e\n\u003cli data-section-id=\"1s5261z\" data-start=\"1165\" data-end=\"1209\"\u003eContinuous: \u003cstrong data-start=\"1179\" data-end=\"1207\"\u003e18.5 kW (low-speed coil)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1v3g0fh\" data-start=\"1212\" data-end=\"1246\"\u003eHigh-speed coil: \u003cstrong data-start=\"1231\" data-end=\"1246\"\u003e22 kW class\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1isw30j\" data-start=\"1249\" data-end=\"1295\"\u003eShort-time (30 min): \u003cstrong data-start=\"1272\" data-end=\"1295\"\u003e22 kW \/ 30 kW range\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1pmg760\" data-start=\"1297\" data-end=\"1423\"\u003e\n\u003cstrong data-start=\"1299\" data-end=\"1310\"\u003eTorque:\u003c\/strong\u003e\n\u003cul data-start=\"1313\" data-end=\"1423\"\u003e\n\u003cli data-section-id=\"beww5m\" data-start=\"1313\" data-end=\"1385\"\u003eContinuous: \u003cstrong data-start=\"1327\" data-end=\"1355\"\u003e353 N·m (low-speed coil)\u003c\/strong\u003e \/ 140 N·m (high-speed coil)\u003c\/li\u003e\n\u003cli data-section-id=\"5ss6rc\" data-start=\"1388\" data-end=\"1423\"\u003eShort-time: \u003cstrong data-start=\"1402\" data-end=\"1423\"\u003e420 N·m \/ 191 N·m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xv03be\" data-start=\"1425\" data-end=\"1524\"\u003e\n\u003cstrong data-start=\"1427\" data-end=\"1443\"\u003eSpeed range:\u003c\/strong\u003e\n\u003cul data-start=\"1446\" data-end=\"1524\"\u003e\n\u003cli data-section-id=\"14028y8\" data-start=\"1446\" data-end=\"1482\"\u003eLow-speed coil: \u003cstrong data-start=\"1464\" data-end=\"1482\"\u003e500–1500 r\/min\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11dmfrk\" data-start=\"1485\" data-end=\"1524\"\u003eHigh-speed coil: \u003cstrong data-start=\"1504\" data-end=\"1524\"\u003eup to 6000 r\/min\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1526\" data-end=\"1529\"\u003e\n\u003ch3 data-section-id=\"bvapjl\" data-start=\"1531\" data-end=\"1568\"\u003e🧩 Mechanical \u0026amp; Construction Data\u003c\/h3\u003e\n\u003cul data-start=\"1570\" data-end=\"1797\"\u003e\n\u003cli data-section-id=\"ajh4k7\" data-start=\"1570\" data-end=\"1605\"\u003e\n\u003cstrong data-start=\"1572\" data-end=\"1590\"\u003eRotor inertia:\u003c\/strong\u003e ~0.283 kg·m²\u003c\/li\u003e\n\u003cli data-section-id=\"35qioz\" data-start=\"1606\" data-end=\"1657\"\u003e\n\u003cstrong data-start=\"1608\" data-end=\"1623\"\u003eMotor mass:\u003c\/strong\u003e ~70 kg (stator), ~35 kg (rotor)\u003c\/li\u003e\n\u003cli data-section-id=\"17vmt0r\" data-start=\"1658\" data-end=\"1692\"\u003e\n\u003cstrong data-start=\"1660\" data-end=\"1680\"\u003eStator diameter:\u003c\/strong\u003e Ø299.5 mm\u003c\/li\u003e\n\u003cli data-section-id=\"3swjkn\" data-start=\"1693\" data-end=\"1730\"\u003e\n\u003cstrong data-start=\"1695\" data-end=\"1720\"\u003eRotor inner diameter:\u003c\/strong\u003e Ø145 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1kipe7o\" data-start=\"1731\" data-end=\"1797\"\u003e\n\u003cstrong data-start=\"1733\" data-end=\"1750\"\u003eFrame length:\u003c\/strong\u003e ~390 mm (compact compared to similar models)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1799\" data-end=\"1802\"\u003e\n\u003ch3 data-section-id=\"nexl9g\" data-start=\"1804\" data-end=\"1844\"\u003e🌡️ Cooling \u0026amp; Operation Requirements\u003c\/h3\u003e\n\u003cul data-start=\"1846\" data-end=\"2052\"\u003e\n\u003cli data-section-id=\"1jhym0j\" data-start=\"1846\" data-end=\"1909\"\u003e\n\u003cstrong data-start=\"1848\" data-end=\"1865\"\u003eCooling type:\u003c\/strong\u003e Liquid cooling (oil jacket system required)\u003c\/li\u003e\n\u003cli data-section-id=\"pz7v8s\" data-start=\"1910\" data-end=\"1970\"\u003e\n\u003cstrong data-start=\"1912\" data-end=\"1933\"\u003eCooling capacity:\u003c\/strong\u003e ~5.2 kW heat dissipation requirement\u003c\/li\u003e\n\u003cli data-section-id=\"1gs01m9\" data-start=\"1971\" data-end=\"1997\"\u003e\n\u003cstrong data-start=\"1973\" data-end=\"1987\"\u003eFlow rate:\u003c\/strong\u003e ~15 L\/min\u003c\/li\u003e\n\u003cli data-section-id=\"1gr2qw9\" data-start=\"1998\" data-end=\"2052\"\u003e\n\u003cstrong data-start=\"2000\" data-end=\"2018\"\u003eThermal class:\u003c\/strong\u003e Class F (155°C insulation system)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2054\" data-end=\"2057\"\u003e\n\u003ch3 data-section-id=\"1hkry7c\" data-start=\"2059\" data-end=\"2079\"\u003e🏭 Typical Usage\u003c\/h3\u003e\n\u003cp data-start=\"2081\" data-end=\"2117\"\u003eThe SJ-2B6721TK is commonly used in:\u003c\/p\u003e\n\u003cul data-start=\"2118\" data-end=\"2291\"\u003e\n\u003cli data-section-id=\"c2tjl5\" data-start=\"2118\" data-end=\"2163\"\u003eHeavy-duty vertical machining centers (VMC)\u003c\/li\u003e\n\u003cli data-section-id=\"1701ze1\" data-start=\"2164\" data-end=\"2192\"\u003eLarge CNC milling machines\u003c\/li\u003e\n\u003cli data-section-id=\"1oizve4\" data-start=\"2193\" data-end=\"2229\"\u003eHigh-load metal cutting operations\u003c\/li\u003e\n\u003cli data-section-id=\"1gziqid\" data-start=\"2230\" data-end=\"2291\"\u003eIndustrial production lines requiring stable spindle torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JJAutomation","offers":[{"title":"Default Title","offer_id":45860985995400,"sku":"SJ-2B6721TK","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/WhatsAppImage2025-10-18at1.47.49PM-2026-05-18T130727.835.jpg?v=1779089856","url":"https:\/\/jjautomation.in\/products\/mitsubishi-m80-built-in-spindle-motor-sj-2b6706tk-copy","provider":"JJAutomation","version":"1.0","type":"link"}