Product Overview
SND-G40 Medium-High Toughness Metal Bond Synthetic Diamond Grit is developed for manufacturers of industrial diamond tools used in glass and other precision grinding applications. Positioned as an MBD8-comparable commercial grade, SND-G40 belongs to the medium-high toughness category of the SinoDiam Metal Bond Diamond series.
Featuring regular crystal characteristics and a medium-high toughness grade positioning, SND-G40 is intended for applications requiring a balance between abrasive durability, cutting engagement and controlled material removal. These characteristics make it a candidate for evaluation in demanding glass processing and precision grinding tool formulations.
Its target application areas include glass core drilling, pencil edging, glass edge grinding, beveling and seaming, as well as selected crystal and glass grooving applications. The appropriate diamond grade and mesh size should be selected according to workpiece material, tool construction, bonding formulation and operating conditions.
SND-G40 is specified within a mesh range of 80/100–325/400. SinoDiam supports industrial diamond tool manufacturers with grade selection, particle size evaluation and application-oriented technical assistance.
Technical Specifications
| Product Model | SND-G40 |
| Grade Reference | MBD8-Comparable |
| Product Type | Metal Bond Synthetic Diamond Grit |
| Toughness Classification | Medium-High Toughness |
| Crystal Characteristics | Regular Crystal Characteristics |
| Available Mesh Range | 80/100–325/400 Mesh |
| Bonding System | Metal Bond |
| Primary Applications | Glass Core Drilling, Pencil Edging, Edge Grinding and Beveling |
| Additional Applications | Glass Seaming, Crystal and Glass Grooving & Grinding |
MBD8-comparable is a commercial grade reference, not a guarantee of identical specifications across manufacturers. Numerical properties, including carbon content, Vickers hardness, thermal stability, impact strength and particle size tolerance, should be confirmed through applicable G40 batch inspection reports.
Crystal Characteristics & Performance
1. Medium-High Toughness Grade Positioning
SND-G40 is positioned in the medium-high toughness category of SinoDiam’s Metal Bond Synthetic Diamond series. This grade is intended for tool manufacturing applications where abrasive durability and stable grinding performance are important considerations.
2. Regular Crystal Characteristics
SND-G40 features regular crystal characteristics as part of its grade positioning. Crystal morphology influences cutting edge engagement, abrasive behavior and the interaction between diamond particles and the metal bond matrix.
3. Toughness and Abrasive Retention
Medium-high toughness is an important selection consideration for metal-bond diamond tools exposed to repeated grinding and drilling forces. The combination of diamond crystal characteristics and bond formulation influences particle retention, abrasive wear and tool performance.
4. Controlled Grinding and Edge Processing
In glass processing, abrasive selection affects material removal, edge quality and the risk of chipping. SND-G40 can be evaluated in tool formulations designed for glass drilling, edging, beveling and related precision grinding processes.
5. Fine Mesh Size Availability
The stated 80/100–325/400 mesh range provides particle size options for different glass-processing tool designs. Manufacturers can select suitable mesh sizes according to drilling diameter, edge geometry, grinding requirements and desired surface finish.
Recommended Applications
Glass Core Drilling
Suitable for evaluation in metal-bond diamond core drilling tools used in glass processing. Grade selection should consider drilling diameter, glass thickness, operating forces and required hole quality.
Glass Pencil Edging & Edge Grinding
Designed for consideration in diamond tools used for pencil-edge processing and glass edge grinding. Appropriate mesh size and bond formulation should be selected according to edge geometry and required finish.
Glass Beveling & Seaming
Suitable for evaluation in metal-bond diamond tools for glass beveling and seaming operations, where controlled material removal, edge quality and consistent grinding performance are important.
Crystal & Glass Grooving
Can be evaluated in specialized diamond tools for crystal and glass grooving and grinding. Final grade and particle size selection depend on groove geometry, workpiece properties and tool construction.
Application suitability should be verified through tool manufacturing trials and actual workpiece testing. The applications listed above represent target application areas, not a claim that every tool formulation will achieve identical results.
Available Mesh Sizes
SND-G40 is specified within the following mesh range for different metal-bond diamond tool manufacturing requirements.
Exact mesh availability should be confirmed with SinoDiam before ordering. Particle size selection should consider the workpiece material, tool geometry, grinding process and desired surface finish.
Metal Bond Compatibility
SND-G40 is developed for metal-bond synthetic diamond tool manufacturing. Its medium-high toughness positioning makes it a candidate for evaluation in glass drilling, edging, beveling and precision grinding tool formulations.
The final performance of a metal-bond diamond tool depends on the interaction between diamond crystal properties, metal matrix composition, diamond concentration and manufacturing conditions.
Important evaluation factors include:
- Metal matrix composition and bond formulation.
- Diamond concentration and particle distribution.
- Sintering temperature and manufacturing conditions.
- Tool geometry and abrasive retention requirements.
- Workpiece material and operating parameters.
- Drilling, edging, beveling and grinding requirements.
Manufacturers are encouraged to conduct application-specific tool trials to determine the optimal mesh size, concentration and bonding formulation before final production selection.
Grade Selection Guide
Compare the four grades in the SinoDiam Metal Bond Synthetic Diamond series according to toughness classification, crystal characteristics and intended applications.
SND-G20
Medium-low toughness grade with mixed irregular and semi-blocky crystals.
Primary Applications: Non-ferrous metals and brittle non-metals.
SND-G30
Medium-toughness grade for fine-size metal-bond grinding applications.
Primary Applications: Glass beveling and carbide grinding.
SND-G40
Medium-high toughness grade featuring regular crystal characteristics.
Primary Applications: Glass drilling, pencil edging and precision glass processing.
SND-G60
High-toughness grade for demanding industrial grinding and polishing applications.
Primary Applications: High-toughness grinding and polishing.
MBD-comparable designations are commercial grade references. Different manufacturers may use different classification systems and technical specifications. Contact SinoDiam for grade-specific technical information and application evaluation.
Frequently Asked Questions
1. What is SND-G40 metal bond diamond grit?
SND-G40 is a medium-high toughness synthetic diamond grit developed for metal-bond diamond tool manufacturing. It features regular crystal characteristics and is positioned as an MBD8-comparable commercial grade.
2. Is SND-G40 equivalent to MBD8?
SND-G40 is positioned as an MBD8-comparable grade for commercial reference. However, MBD classifications are not universally standardized across manufacturers. Actual product comparisons should consider crystal morphology, toughness, particle size distribution and application testing.
3. Which glass processing applications are suitable for SND-G40?
Its target applications include glass core drilling, pencil edging, glass edge grinding, beveling and seaming. It can also be evaluated in selected crystal and glass grooving applications. Final suitability depends on tool design and operating conditions.
4. What mesh sizes are available for SND-G40?
SND-G40 has a stated mesh range of 80/100–325/400. Please contact SinoDiam to confirm exact mesh availability and the specifications required for your order.
5. What is the difference between SND-G30 and SND-G40?
SND-G30 is positioned as a medium-toughness MBD6-comparable grade, while SND-G40 is positioned as a medium-high toughness MBD8-comparable grade. Their intended application emphasis also differs: G30 focuses on fine-size grinding, glass beveling and carbide grinding, while G40 focuses on glass drilling, pencil edging and related precision glass processing.
6. What are the thermal stability and impact resistance specifications of SND-G40?
Specific numerical values for thermal stability and impact resistance should be confirmed through the applicable G40 batch inspection reports and test methods. Contact SinoDiam for available technical documentation.
7. Can SinoDiam provide customized mesh sizes and technical specifications?
Contact SinoDiam with your required mesh size, workpiece material, tool type, bonding system and estimated quantity. Our team can discuss available specifications and application-oriented technical support for your requirements.
Request SND-G40 Technical Information & Quotation
Looking for medium-high toughness synthetic diamond grit for glass drilling, pencil edging or precision glass processing?
Contact our team with your required mesh size, workpiece material, tool design, bonding system and estimated quantity.
