SND-G Series Guide for NA/EU Professionals
If you’re a tool manufacturer grinding aluminum extrusions for NA construction, a glassworker beveling shower doors for EU homes, or a stone processor polishing granite countertops—you know one thing: the right diamond powder makes or breaks your efficiency, finish quality, and bottom line.
Fine-size metal bond diamond powder (80/100–325/400 mesh) is the backbone of precision tasks like carbide sharpening, optical glass grinding, and decorative glass engraving. But with so many grades on the market, how do you pick between MBD4, MBD6, MBD8, or MBD10 equivalents?
Our SND-G series—G20 (MBD4), G30 (MBD6), G40 (MBD8), and G60 (MBD10)—is engineered for NA/EU workflows. Below, we break down their key differences, real-world applications, and how to match each grade to your specific needs.
First: Why Fine-Size Metal Bond Diamond Powder?
Before diving into the SND-G series, let’s clarify why 80/100–325/400 mesh is critical for your work:
- 80/100 mesh (150–180μm): Ideal for rough grinding (e.g., shaping granite slabs or deburring aluminum).
- 120/170 mesh (88–125μm): Balances speed and precision (e.g., carbide tool sharpening).
- 230/325 mesh (45–63μm): Perfect for mid-level polishing (e.g., glass beveling or ceramic edge finishing).
- 325/400 mesh (38–45μm): For fine, scratch-free finishes (e.g., optical glass lenses or luxury stone countertops).
Metal bond formulations (common in NA/EU tools) pair with these fines to deliver durability—critical for prolonged tasks like 8-hour granite polishing shifts.
SND-G Series Breakdown: Which Grade Fits Your Work?
To simplify your choice, we’ve compared the 4 core SND-G grades across the metrics that matter most: toughness, thermal stability, applications, and cost.
Core Technical Comparison Table
| Factor | SND-G20 (MBD4 Equiv.) | SND-G30 (MBD6 Equiv.) | SND-G40 (MBD8 Equiv.) | SND-G60 (MBD10 Equiv.) |
| Toughness & Crystal Quality | Medium-low toughnessMix of regular + angular blocky crystals6,200–6,500 HV | Medium toughnessImproved regular cuboctahedra6,500–6,800 HV | Medium-high toughnessHighly regular cuboctahedra6,800–7,200 HV | High toughnessPolished cuboctahedra (90%+ uniformity)7,200–7,500 HV |
| Thermal Stability | Up to 750°C (good for soft metals) | Up to 800°C (ideal for glass/carbide) | Up to 850°C (prolonged glass grinding) | Up to 900°C (hard stone/optical glass) |
| NA/EU Use Cases | • 6061 aluminum framing (NA construction)• Mild steel brackets (EU automotive) | • Shower door glass beveling (NA)• CNC carbide inserts (EU automotive)• Magnet polishing (electronics) | • Architectural glass core drilling (NA)• Furniture glass edging (EU)• Wine bottle engraving | • Granite countertop polishing (NA)• Porcelain tile finishing (EU)• Optical glass lenses |
| Performance Win | 15% faster than generic MBD4 (aluminum grinding) | Ra ≤2.0μm finish (no post-polishing needed) | 30% longer life than G30 (glass drilling) | 40% longer life than G40 (granite/optical glass) |
| Cost (NA/EU) | Ultra-value: \(1.20–\)1.30/lb (NA); €1.20–€1.30/kg (EU) | Mid-value: \(1.35–\)1.45/lb (NA); €1.35–€1.45/kg (EU) | Mid-premium: \(1.70–\)1.80/lb (NA); €1.70–€1.80/kg (EU) | Premium: \(2.15–\)2.25/lb (NA); €2.15–€2.25/kg (EU) |
Real-World Examples: Which Grade Do NA/EU Pros Choose?
Let’s match the SND-G series to common professional needs—so you can see how each grade solves real problems.
1. You’re a NA Aluminum Extruder: Choose SND-G20
If you’re grinding 100+ 6061 aluminum framing pieces per day (for residential builds), SND-G20 is your workhorse. Its medium-low toughness prioritizes speed (12–15 cm³/min material removal) over ultra-fine finishes—perfect for deburring extrusions before assembly. At $1.20/lb, it’s 15–20% cheaper than G30, keeping high-volume production costs in check.
2. You’re an EU CNC Carbide Shop: Choose SND-G30
EU automotive suppliers rely on sharp carbide inserts to machine engine parts—and SND-G30 delivers. Its regular cuboctahedra crystals create a Ra ≤2.0μm edge finish, eliminating the need for post-grinding honing. For 1/8” carbide bits, G30 lasts 15% longer than G20, reducing tool changes and downtime.
3. You’re a NA Architectural Glass Installer: Choose SND-G40
Drilling 1/2” holes in 1/4” architectural glass (for office windows) requires consistency—no chipping, no breakage. SND-G40’s 850°C thermal stability handles prolonged drilling (up to 6 hours), while its low wear rate (≤0.5% over 40hrs) ensures every hole is uniform. It’s the sweet spot between cost and performance for mid-tier glass tools.
4. You’re an EU Optical Glass Maker: Choose SND-G60
EU camera lens manufacturers (compliant with EN 12150) need scratch-free, precise finishes—and SND-G60 delivers. Its 900°C thermal stability resists softening during high-speed grinding, while its Ra ≤1.2μm finish meets optical clarity standards. For luxury applications (like aerospace lenses), G60’s 40% longer life vs. G40 cuts replacement costs.
Key Tips for NA/EU Professionals
- Don’t overspend on toughness: If you’re grinding soft metals (aluminum, brass), G20 works—no need for G60’s premium price.
- Prioritize thermal stability for glass/stone: Prolonged grinding of glass or granite generates heat—choose G40 (850°C) or G60 (900°C) to avoid grit softening.
- Leverage bulk discounts: All SND-G grades offer discounts for large orders (e.g., 12% off G60 for 100lb/100kg batches)—ideal for NA/EU manufacturers with consistent demand.
Ready to Test the SND-G Series?
Every NA/EU workflow is unique—and the best way to choose is to test. We offer 1lb/1kg samples of SND-G20, G30, G40, and G60, so you can trial them in your tools (metal bond wheels, electroplated pads, or core drills) before committing.
Whether you’re polishing granite in Michigan, beveling glass in Munich, or sharpening carbide in Madrid—we’ll help you find the right grade to boost efficiency and quality.
Contact our NA/EU team today to request your sample or learn more about custom mesh blends for your specific tool.
