{"product_id":"id-hq-series-armature-4100nh-4-marble-cutter-spare-part-30170","title":"ID HQ SERIES ARMATURE [4100NH] [4\"] MARBLE CUTTER SPARE PART - 30170","description":"\u003ch2\u003eRestore Peak Cutting Power — Genuine HQ Series Performance in Every Rotation\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eID HQ Series Armature [4100NH]\u003c\/strong\u003e is a precision-engineered \u003cstrong\u003emarble cutter spare part\u003c\/strong\u003e designed to restore and maintain the full performance of your 4-inch angle grinder or marble cutter. Built with a \u003cstrong\u003ehigh-grade magnetic core\u003c\/strong\u003e, \u003cstrong\u003ecopper windings\u003c\/strong\u003e, and a \u003cstrong\u003eprecision-machined commutator\u003c\/strong\u003e, this \u003cstrong\u003ereplacement armature\u003c\/strong\u003e converts electrical energy into mechanical rotation efficiently and reliably, making it an essential component for any professional power tool repair.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 12px; border: 1px solid #e0e0e0; background-color: #000000; color: #ffffff;\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 12px; border: 1px solid #e0e0e0; background-color: #000000; color: #ffffff;\"\u003e\u003cstrong\u003ePerfect For\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 12px; border: 1px solid #e0e0e0;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003ePrecision-wound copper coil for efficient energy transfer\u003c\/li\u003e\n\u003cli\u003eHigh-grade magnetic core for consistent torque output\u003c\/li\u003e\n\u003cli\u003ePrecision-machined commutator for smooth, low-wear brush contact\u003c\/li\u003e\n\u003cli\u003eEngineered for direct fit — no modification required\u003c\/li\u003e\n\u003cli\u003eDurable construction for extended service life under heavy use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 40%; vertical-align: top; text-align: left; padding: 12px; border: 1px solid #e0e0e0;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eRepairing 4-inch marble cutters and angle grinders\u003c\/li\u003e\n\u003cli\u003eProfessional power tool service technicians\u003c\/li\u003e\n\u003cli\u003eConstruction and stone-fabrication workshops\u003c\/li\u003e\n\u003cli\u003ePreventive maintenance of heavy-use cutting tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect-replacement compatibility:\u003c\/strong\u003e The 4100NH armature is purpose-built for 4-inch (100 mm) marble cutters and angle grinders, ensuring a precise drop-in fit with no machining or adaptation needed — minimising downtime on the job site.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision copper winding:\u003c\/strong\u003e The armature features tightly wound \u003cstrong\u003ecopper coils\u003c\/strong\u003e wrapped around a laminated magnetic core, maximising electromagnetic efficiency and reducing heat build-up during sustained cutting operations on marble, granite, and ceramic tile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined commutator segments:\u003c\/strong\u003e Each \u003cstrong\u003ecommutator\u003c\/strong\u003e is precision-turned and balanced to ensure consistent brush contact, reducing electrical arcing and extending the service life of both the armature and the carbon brushes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-density laminated core:\u003c\/strong\u003e The \u003cstrong\u003elaminated iron core\u003c\/strong\u003e minimises eddy current losses, translating more input electrical energy into usable shaft rotation — delivering stronger, more consistent torque even under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty construction for professional use:\u003c\/strong\u003e Manufactured to withstand the vibration, heat, and continuous load cycles typical of professional stone-cutting environments, this \u003cstrong\u003eHQ Series armature\u003c\/strong\u003e is designed for technicians who demand reliability from every spare part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-effective repair solution:\u003c\/strong\u003e Replacing a worn or burnt armature with the \u003cstrong\u003eID 4100NH spare part (SKU: 30170)\u003c\/strong\u003e extends the life of the entire machine at a fraction of the cost of a full tool replacement — ideal for workshops managing large fleets of power tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis armature is supplied as a genuine \u003cstrong\u003eID HQ Series spare part\u003c\/strong\u003e and comes complete with the armature assembly ready for installation. It is designed to meet the original performance specifications of the 4100NH marble cutter, ensuring reliable operation from the moment it is fitted.\u003c\/p\u003e\n\u003c!-- CSS Styles for the FAQ Section --\u003e\n\u003cstyle\u003e\n.faq-section-styled {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n  margin-top: 40px;\n}\n.faq-section-styled h2 {\n  font-size: 2em;\n  font-weight: 700;\n  color: #1C2228;\n  border-bottom: 2px solid #F4F4F4;\n  padding-bottom: 15px;\n  margin-bottom: 30px;\n}\n.faq-section-styled details {\n  background-color: #f9f9f9;\n  border: 1px solid #e9e9e9;\n  border-radius: 8px;\n  margin-bottom: 15px;\n  overflow: hidden;\n}\n.faq-section-styled summary {\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  padding: 20px;\n  font-weight: 600;\n  font-size: 1.1em;\n  color: #1C2228;\n  cursor: pointer;\n  list-style: none;\n}\n.faq-section-styled summary::-webkit-details-marker {\n  display: none;\n}\n.faq-section-styled .question-title {\n  display: flex;\n  align-items: center;\n}\n.faq-section-styled .question-title::before {\n  content: '\\25B6';\n  margin-right: 15px;\n  font-size: 0.8em;\n  color: #1C2228;\n}\n.faq-section-styled summary::after {\n  content: '+';\n  font-size: 1.8em;\n  font-weight: 300;\n  color: #1C2228;\n  transition: transform 0.2s ease-in-out;\n}\n.faq-section-styled details[open] summary::after {\n  transform: rotate(45deg);\n}\n.faq-section-styled .faq-answer-content {\n  background-color: #FFFFFF;\n  padding: 20px 20px 20px 55px;\n  border-top: 1px solid #e9e9e9;\n}\n.faq-section-styled .faq-answer-content p {\n  margin: 0;\n  font-size: 1em;\n  line-height: 1.7;\n  color: #2E2E2E;\n  text-align: left;\n}\n.faq-section-styled .faq-answer-content p strong {\n    color: #1C2228;\n}\n\u003c\/style\u003e\n\u003cdiv class=\"faq-section-styled\"\u003e\n\u003ch2\u003eGeneral Purchase \u0026amp; Comparison Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eIs this armature compatible with my 4-inch marble cutter or angle grinder?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eID HQ Series Armature [4100NH]\u003c\/strong\u003e is specifically engineered for \u003cstrong\u003e4-inch (100 mm) marble cutters and angle grinders\u003c\/strong\u003e that use the 4100NH motor configuration. It is a direct-replacement spare part, meaning it fits without any modification. If you are unsure whether your machine uses this armature model, check your tool's model number or contact us with your machine details for confirmation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eHow does the ID HQ Series armature compare to generic aftermarket alternatives?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eUnlike generic aftermarket armatures, the \u003cstrong\u003eID HQ Series 4100NH\u003c\/strong\u003e is manufactured to match the original specifications of the tool, including winding resistance, core dimensions, and commutator profile. This ensures \u003cstrong\u003econsistent torque, lower heat generation, and longer service life\u003c\/strong\u003e compared to lower-grade alternatives that may cause premature brush wear, overheating, or reduced cutting performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eWhat is the SKU or part number for this armature?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThis armature is listed under \u003cstrong\u003eSKU 30170\u003c\/strong\u003e and is part of the \u003cstrong\u003eID HQ Series spare parts range\u003c\/strong\u003e. When ordering or referencing this part for repair purposes, use the model code \u003cstrong\u003e4100NH\u003c\/strong\u003e along with SKU 30170 to ensure you receive the correct component for your machine.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003ch2\u003eProduct-Specific and Usage Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eWhat does an armature do in a marble cutter?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eThe \u003cstrong\u003earmature\u003c\/strong\u003e is the rotating core of your marble cutter's electric motor. It consists of a \u003cstrong\u003elaminated magnetic core, copper windings, and a commutator\u003c\/strong\u003e. When electrical current flows through the windings, it creates a magnetic field that interacts with the stator's permanent magnets, generating the rotational force (torque) that spins the cutting disc. A damaged or worn armature directly causes loss of power, overheating, sparking, or complete tool failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eHow do I know if my armature needs to be replaced?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eCommon signs that your \u003cstrong\u003emarble cutter armature\u003c\/strong\u003e requires replacement include: excessive sparking from the brush area, burning smell during operation, significant loss of cutting power or speed, the motor running intermittently, or visible burn marks and damaged windings on the armature itself. If your \u003cstrong\u003ecarbon brushes\u003c\/strong\u003e are wearing out rapidly, a damaged commutator surface on the armature is often the root cause.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eCan I install this armature myself, or do I need a technician?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eArmature replacement requires basic power tool disassembly skills — including removing the tool housing, extracting the old armature, and re-seating the new one correctly with the brushes and bearings in position. While an experienced DIYer can complete this repair, we recommend having the replacement carried out by a \u003cstrong\u003equalified power tool service technician\u003c\/strong\u003e to ensure correct installation, proper brush seating, and safe reassembly — particularly in professional workshop environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003ch2\u003eProblem\/Solution-Oriented Queries\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eMy marble cutter is producing heavy sparks and losing power — will replacing the armature fix this?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eHeavy sparking combined with power loss is one of the most common symptoms of a \u003cstrong\u003eworn or damaged armature commutator\u003c\/strong\u003e. When the commutator surface becomes grooved, burnt, or uneven, the carbon brushes cannot maintain consistent contact, causing arcing and voltage drop. Replacing the armature with a new \u003cstrong\u003eID HQ Series 4100NH unit\u003c\/strong\u003e restores a smooth commutator surface and correct winding resistance, which in most cases resolves both the sparking and the power loss entirely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eMy marble cutter runs but cuts very slowly — could the armature be the problem?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eYes — a partially shorted or open-wound \u003cstrong\u003earmature\u003c\/strong\u003e can cause the motor to run but with significantly reduced torque and speed. If you have already ruled out worn carbon brushes, a faulty power switch, or supply voltage issues, testing the armature winding resistance is the next step. A shorted winding will show abnormally low resistance between commutator segments, while an open circuit will show no continuity. In either case, fitting a replacement \u003cstrong\u003e4100NH armature (SKU 30170)\u003c\/strong\u003e will restore full motor output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan class=\"question-title\"\u003eThe motor burned out after overloading — is the armature likely damaged?\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer-content\"\u003e\n\u003cp\u003eOverloading a marble cutter — such as forcing the disc through thick stone without adequate relief cuts — causes the motor to draw excessive current, rapidly overheating the \u003cstrong\u003earmature windings\u003c\/strong\u003e. This can melt the winding insulation and short-circuit adjacent coils, permanently damaging the armature. A burnt smell, discoloured or visibly melted windings, or zero resistance between commutator segments all confirm armature failure. Replacing it with the \u003cstrong\u003eID HQ Series 4100NH armature\u003c\/strong\u003e and following correct cutting technique will return the tool to full operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Ideal Power Tools","offers":[{"title":"Default Title","offer_id":49792102236375,"sku":"30170","price":17.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0714\/1962\/5687\/files\/IDHQSERIESARMATURE_4100NH_4INCH_MARBLECUTTERSPAREPART-30170.jpg?v=1789480342","url":"https:\/\/www.idealpowertools.com\/products\/id-hq-series-armature-4100nh-4-marble-cutter-spare-part-30170","provider":"Ideal Power Tools","version":"1.0","type":"link"}