{"product_id":"55a-21v-brushless-angle-grinder-control-board-power-tool-motherboard","title":"55A 21V Brushless Angle Grinder Control Board | Power Tool","description":"\n\u003ch2\u003e55A 21V Brushless Motor Controller Board for Angle Grinders \u0026amp; Polishers\u003c\/h2\u003e\n\u003cp\u003eUpgrade or restore your brushless power tools with this high-performance \u003cstrong\u003e55A 21V Control Board\u003c\/strong\u003e — a compact, efficient motherboard designed for brushless lithium-powered angle grinders, polishing machines, and electric wrenches. Whether you're a DIY hobbyist or a seasoned tradesperson, this replacement controller delivers reliable, smooth motor management to keep your tools running at peak efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Current Capacity:\u003c\/strong\u003e Rated at 55A and 21V, this control board provides robust driving force for demanding grinding and polishing tasks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Brushless Motor Control:\u003c\/strong\u003e Engineered for brushless motors, delivering quieter operation and extended tool longevity compared to brushed alternatives.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStrong Noise Suppression:\u003c\/strong\u003e Advanced noise control circuitry ensures smooth, efficient operation — making grinding and polishing work faster and more consistent.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Adapts to various brands and models of angle grinders and polishing machines, making it a versatile replacement part for your workshop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntuitive \u0026amp; User-Friendly:\u003c\/strong\u003e Simple interface design — no deep technical expertise required. Suitable for all skill levels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Lightweight and small form factor, easy to install and transport.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 21V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 55A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Tools:\u003c\/strong\u003e Brushless angle grinders, polishing machines, electric wrenches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 x Control Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Electronic PCB components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e As shown in product images\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003ePlease Note\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDue to manual measurement, please allow a dimensional tolerance of 1–3mm.\u003c\/li\u003e\n  \u003cli\u003eColors may vary slightly from product images due to differences in monitor calibration. Please refer to the actual item received.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/best-seat-in-the-house-retro-quote-canvas-wall-art-print\"\u003e\"Best Seat In The House\" Retro Quote Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHelpful Resource\u003c\/h3\u003e\n\u003cp\u003eFor safety guidance when working with power tools and electrical components, refer to the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Standards\u003c\/a\u003e to ensure safe handling and installation practices.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of power tools is this 55A 21V control board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This brushless motor control board is compatible with a wide range of 21V brushless angle grinders, polishing machines, and electric wrenches from various brands. Always verify your tool's voltage and current specifications before installation to ensure compatibility.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this control board easy to install without professional knowledge?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The board features a simple and intuitive interface design, making it accessible for users without deep technical expertise. However, basic familiarity with power tool electronics is recommended. If unsure, consult a qualified technician for installation.\u003c\/p\u003e\n\u003ch4\u003eQ: What is included in the package?\u003c\/h4\u003e\n\u003cp\u003eA: Each package contains 1 x 55A 21V Brushless Angle Grinder Control Board. No additional accessories are included.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this board handle heavy-duty grinding and polishing tasks?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. With a 55A current rating and 21V operating voltage, this controller is built to deliver strong, stable power output for demanding grinding, polishing, and cutting applications, ensuring efficient and consistent tool performance.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of power tools is this 55A 21V control board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This brushless motor control board is compatible with a wide range of 21V brushless angle grinders, polishing machines, and electric wrenches from various brands. Always verify your tool's voltage and current specifications before installation to ensure compatibility.\"}}, {\"@type\": \"Question\", \"name\": \"Is this control board easy to install without professional knowledge?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The board features a simple and intuitive interface design, making it accessible for users without deep technical expertise. However, basic familiarity with power tool electronics is recommended. If unsure, consult a qualified technician for installation.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in the package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each package contains 1 x 55A 21V Brushless Angle Grinder Control Board. No additional accessories are included.\"}}, {\"@type\": \"Question\", \"name\": \"Can this board handle heavy-duty grinding and polishing tasks?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. With a 55A current rating and 21V operating voltage, this controller is built to deliver strong, stable power output for demanding grinding, polishing, and cutting applications, ensuring efficient and consistent tool performance.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tools \u0026 Hardware\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/collections\/tools-hardware\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"55A 21V Brushless Angle Grinder Control Board | Power Tool\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/products\/55a-21v-brushless-angle-grinder-control-board-power-tool-motherboard\"}]}\u003c\/script\u003e","brand":"Peaceful Pleasures Health and Wellness","offers":[{"title":"onesize","offer_id":53667726590265,"sku":"1005006549856585-onesize","price":19.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/3689\/5801\/files\/Sb30da3b147684d94aa3be9e12bae3b15p.webp?v=1783025651","url":"https:\/\/peacefulpleasureswellness.com\/products\/55a-21v-brushless-angle-grinder-control-board-power-tool-motherboard","provider":"Peaceful Pleasures Health and Wellness","version":"1.0","type":"link"}