4-inch Dongfeng Resin Series

The Dongfeng Series is built around a standardized four-step dry-grinding system, delivering efficient scratch removal, smooth transitions, and consistently refined surface results.

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The Dongfeng Series features an H1–H4 grinding sequence, providing a complete workflow from initial scratch removal to fine grinding and pre-polishing surface preparation:

• H1 / 50 Grit: Quickly refines the surface and removes deeper scratches left by metal-bond diamond tools.
• H2 / 100 Grit: Further reduces grinding marks and creates a more uniform surface pattern.
• H3 / 200 Grit: Removes residual scratches and densifier residue, preparing the floor for fine grinding.
• H4 / 400 Grit: Refines the surface texture and improves smoothness, creating an ideal foundation for the final polishing stages.

The Dongfeng Series diamond grinding tools are specifically engineered for efficient and reliable four-step dry-grinding applications. Through the standardized H1–H4 process, the system continuously completes scratch removal, surface refinement, fine grinding, and pre-polishing preparation.

With stable cutting performance and excellent scratch-control capability, the Dongfeng Series creates a smooth transition between metal-bond grinding tools and higher-grit polishing tools. It helps prevent gaps between grinding stages while progressively refining the scratch pattern to produce a more uniform, level, and finely finished surface.Featuring a clear grinding sequence, consistent performance, and high working efficiency, the Dongfeng Series is suitable for concrete floors, dry-shake hardener floors, old floor restoration, densified floors, and polished concrete applications. It is an ideal choice for contractors seeking a standardized workflow, consistent quality, and efficient project execution.Recommended Grit Sequence: H1 50 Grit | H2 100 Grit | H3 200 Grit | H4 400 GritKey Features: Four-Step Dry Grinding | Efficient Scratch Removal | Smooth Transition | Uniform Scratch Pattern | Refined Surface Finish | Standardized Workflow