Sintered Diamond Floor Grinding Plates Various Sizes
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Model No.: HNKM60525
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Sintered Diamond Floor Grinding Plates / Segments (Metal Bond)
| Parameter | Value |
|---|---|
| Abrasive Type | Sintered diamond (metal bond) |
| Bond Type | Sintered metal bond (bronze/iron/cobalt based) |
| Shapes Available | Round, square, rectangular, trapezoidal, arrow, double-arrow, horseshoe, custom |
| Sizes Available | Various – 20mm, 25mm, 30mm, 40mm, 50mm, 80mm, 100mm+ |
| Grit Range | #16 (ultra-coarse) to #3000 (ultra-fine polishing) |
| Application | Floor grinding, surface preparation, polishing, coating removal |
| Target Materials | Concrete, terrazzo, epoxy, stone (granite/marble), hardened floors |
| Mounting | Compatible with most floor grinders (Edco, Lavina, Husqvarna, HTC, etc.) |

These sintered diamond floor grinding plates are professional-grade tools designed for high-efficiency floor grinding and polishing on concrete, terrazzo, epoxy, stone, and other hard floor surfaces.
With various shapes and sizes available, plus full customization options, these grinding plates deliver aggressive material removal, consistent finish, and long service life – making them ideal for both floor preparation (coating removal, leveling) and polishing (high-gloss finish).
Unlike electroplated or resin-bonded tools, sintered diamond has diamond grit distributed throughout the entire working layer.
| Feature | Sintered Diamond Advantage |
|---|---|
| Diamond throughout bond | Fresh diamond exposed as tool wears – self-sharpening |
| Metal bond | Strong grain retention, long life |
| High diamond concentration | Aggressive cutting action |
| Wet or dry use | Versatile for any job site |
| Can be dressed | Renew cutting action when needed |
| Bond Type | Life | Cut Speed | Best For | Cost |
|---|---|---|---|---|
| Sintered (metal) | ⭐⭐⭐⭐⭐ Long | ⭐⭐⭐⭐ Fast | Production grinding, hard concrete | Moderate |
| Brazed | ⭐⭐⭐⭐ Long | ⭐⭐⭐⭐⭐ Fastest | Aggressive removal | Higher |
| Electroplated | ⭐⭐ Short | ⭐⭐⭐⭐ Fast | Light duty, occasional | Low |
| Resin bond | ⭐⭐⭐ Moderate | ⭐⭐⭐ Moderate | Polishing, fine finishing | Moderate |
For floor grinding: Sintered metal bond offers the best balance of life, speed, and cost for most applications.
Different shapes provide different grinding characteristics. We offer:
| Shape | Image Description | Best For | Characteristics |
|---|---|---|---|
| Round | Circle / disc | General purpose, even wear | Smooth grinding, consistent finish |
| Square | 4-sided block | Aggressive grinding | Sharp corners for faster cutting |
| Rectangular | Long rectangle | Large area coverage | Efficient for wide floor grinders |
| Trapezoidal | Wedge shape | Edge work, corners | Good for getting into tight spaces |
| Arrow | Pointed triangle | Aggressive cutting | Maximum material removal |
| Double Arrow | Two-pointed shape | High efficiency | Very aggressive, fast grinding |
| Horseshoe | U-shape | Coating removal | Excellent for epoxy/paint removal |
| Application | Recommended Shape |
|---|---|
| Concrete grinding (general) | Round, square, rectangular |
| Aggressive concrete removal | Arrow, double arrow, trapezoidal |
| Epoxy/paint removal | Horseshoe, trapezoidal |
| Terrazzo grinding | Round, rectangular |
| Stone polishing | Round, square |
| Edge work / corners | Trapezoidal, small squares |
| Final polishing | Round (for smooth finish) |
| Size (mm) | Typical Use | Grinder Compatibility |
|---|---|---|
| 20mm | Small grinders, detail work | Edco, small planetary grinders |
| 25mm | Standard for many machines | Most floor grinders |
| 30mm | Heavy grinding | Lavina, Husqvarna, HTC |
| 40mm | Production grinding | Large planetary grinders |
| 50mm | Maximum coverage | Heavy-duty floor grinders |
| 80-100mm | Large single-plate grinders | Walk-behind grinders |
Other sizes available upon request.
Floor grinding typically uses a progressive grit sequence – starting coarse and moving to fine.
| Grit | Cut Rate | Finish | Application |
|---|---|---|---|
| #16-30 | Ultra-aggressive | Very rough | Heavy coating removal, concrete leveling, deep grinding |
| #30-60 | Aggressive | Rough | General concrete grinding, surface prep |
| #60-120 | Moderate | Medium | Smoothing, scratch removal |
| #120-200 | Medium-fine | Smooth | Fine grinding, terrazzo grinding |
| #400-800 | Fine | Very smooth | Pre-polishing, stone polishing |
| #1500-3000 | Ultra-fine | Mirror/high gloss | Final polishing, high-gloss finish |
| Step | Grit | Passes | Result |
|---|---|---|---|
| 1 (Prep) | #16-30 | 2-3 passes | Remove coatings, flatten floor |
| 2 (Grind) | #30-60 | 2 passes | Smooth surface, remove scratches |
| 3 (Hone) | #60-120 | 2 passes | Fine surface, ready for polish |
| 4 (Polish) | #200-400 | 2 passes | Satin/sheen finish |
| 5 (Burnish) | #800-3000 | 2 passes | High-gloss, mirror finish |
✅ High Grinding Efficiency – Optimized diamond concentration and bond hardness for fast material removal
✅ Long Service Life – Sintered metal bond ensures diamonds stay sharp longer
✅ Various Shapes – Choose the shape that matches your application
✅ Multiple Sizes – Fit most floor grinding machines (Edco, Lavina, Husqvarna, HTC, etc.)
✅ Progressive Grit System – Complete range from #16 coarse to #3000 polish
✅ Wet or Dry Operation – Versatile for any job site condition
✅ Fully Customizable – Shape, size, grit, bond hardness – made to your specifications
Surface preparation before epoxy/polyurethane coating
Leveling uneven concrete floors
Removing paint, epoxy, adhesives
Exposed aggregate finish
Polishing concrete to high gloss
Grinding worn terrazzo
Removing scratches and stains
Restoring shine and luster
Granite floor leveling
Marble polishing
Limestone and travertine finishing
Removing thick epoxy coatings
Stripping urethane and paint
Preparing for re-coating
Grinding warehouse floors
Polishing industrial concrete
Maintaining high-traffic areas
These sintered diamond plates are designed to fit most floor grinding machines:
| Brand | Common Models |
|---|---|
| Edco | Edco 2-head, 3-head grinders |
| Lavina | Lavina Pro, L series |
| Husqvarna | Husqvarna PG 280, 400, 530, 820 |
| HTC | HTC 500, 800, 1500 |
| Klindex | Klindex Expander, Levighetor |
| Werkmaster | Werkmaster 4-head, 5-head |
| ASL | ASL planetary grinders |
| Xingyi | Xingyi planetary grinders |
Custom mounting hole patterns available for non-standard machines.
Choose shape based on application (arrow for aggressive, round for polishing)
Choose grit based on current floor condition
Attach plates to floor grinder using bolts or magnetic adapter
Ensure plates are secure and evenly spaced
| Application | Grinder Speed | Pressure |
|---|---|---|
| Coarse grinding (#16-60) | Low-medium (500-800 RPM) | Heavy |
| Fine grinding (#60-200) | Medium (800-1000 RPM) | Moderate |
| Polishing (#400-3000) | High (1000-1500 RPM) | Light |
Work in sections, overlapping passes
For wet grinding: use water to cool and control dust
For dry grinding: use dust extraction system
Always move to next finer grit only after all scratches from previous grit are removed
Clean floor between grit changes

| Factor | Dry Grinding | Wet Grinding |
|---|---|---|
| Dust | High (requires dust extractor) | None |
| Tool life | Shorter | 2-3x longer |
| Cut speed | Good | Faster |
| Convenience | More convenient (no water) | Requires water source |
| Surface finish | Good | Better |
| Best for | Indoor with dust extraction | Outdoor or controlled drainage areas |
Recommendation: Use wet grinding for maximum tool life and fastest cutting. Use dry grinding with a quality dust extractor when water is not practical.
We offer full customization to meet your specific requirements:
| Parameter | Custom Options |
|---|---|
| Shape | Round, square, rectangle, trapezoid, arrow, double-arrow, horseshoe, or custom profile |
| Size | Any dimension from 15mm to 120mm |
| Grit | #16 to #3000 |
| Bond hardness | Soft (for hard concrete), Medium (general), Hard (for soft concrete) |
| Diamond concentration | Standard, high, or ultra-high |
| Mounting pattern | Hole size, spacing, and pattern to fit your machine |
| Segment height | 5mm to 12mm |
| Wet/dry optimized | Formulated for wet or dry grinding |
Please provide:
Desired shape (drawing or photo)
Dimensions (length, width, height)
Grit size
Concrete/floor hardness (soft, medium, hard)
Mounting hole pattern (if specific)
Machine brand and model
Estimated quantity
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