Dca 4-Inch Armature

A DCA 4-inch armature is the rotating core (rotor) used in a 4-inch angle grinder from DCA (Dongcheng Tools). It’s a critical replacement part when your grinder loses power, sparks excessively, or burns out. Key Details Tool size: 4-inch (100mm) angle grinder Function: Converts electrical energy into mechanical rotation Material: Copper windings + laminated steel core Shaft size: Usually ~10mm (varies slightly by model) Voltage compatibility: Typically 220–240V grinders Common DCA Models Using 4” Armature DCA ASM02-100 DCA ASM03-100 DCA SIM-100A (Important: Always confirm your exact model before buying — DCA parts are not always interchangeable.)