
Portable Concrete Floor Grinding Machine 3600W 4-Head Handheld Concrete Edge Grinder. 4-Head Grinding System: Expands coverage by 300% and delivers 4x higher efficiency than single-head grinders. 3600W Copper Motor: Provides stable torque for long-time continuous operation without overheating. 6-Speed Variable Control: Adjustable 0-3000RPM for precise handling of concrete, marble, and polishing. Complete Multi-Surface Kit: Includes 4 diamond wheels, 4 polishing pads, and base plates for immediate use. Quick Disc Replacement: Grinding discs can be replaced within seconds without complex operations. Dual Voltage Support: Compatible with 220V and 110V power sources for global use. Industrial Durability: Sturdy gear-driven structure designed for heavy-duty factory and warehouse projects. Cost & Time Efficiency: Greatly reduces construction time and labor costs for large-area floor leveling.