Stone processing
Saw blades, wire saws and wheels for cutting granite, marble, limestone and other natural stone.
Diamond Macro Grit
High-strength diamond grit for manufacturing abrasive tools: wheels, saw blades, drill bits, wire saws. Consistent particle size distribution, low impurity content, controlled toughness.
Product
Diamond macro grit: coarse angular grains in a dish with scattered grains. Illustrative image; specific batch per actual delivery.
Specifications
| Grit (mesh) | Grain size, μm | Application |
|---|---|---|
| 40/45 | 425–355 | Coarse stone/concrete processing |
| 50/60 | 300–250 | Granite/marble saw blades |
| 60/70 | 250–212 | Drill bits, grinding |
| 70/80 | 212–180 | Finishing, grinding wheels |
Other grit sizes available on request. Every batch is tested for particle size distribution.
Applications
Construction
Diamond blades for cutting concrete, asphalt, reinforced concrete. Core drills for hole drilling.
Mining
Drill bits and core barrels for rock drilling. High impact toughness for heavy-duty conditions.
Grinding wheels
Manufacturing diamond grinding wheels for tool sharpening, ceramic and glass processing.
Need a specific grit size?
Contact us — we'll match the grit to your tool and operating conditions. Trial batch from 1 kg.
Request a trial batchFrequently Asked Questions
Is DIAMTECH a factory or a trading company?
DIAMTECH is a diamond trading and sourcing company, not a factory. We work directly with the Henan cluster, selecting and comparing products across plants and matching the best partner plant for each batch.
How does macro grit differ from micron powder?
Macro grit is coarse-grained material: feedstock for producing micron powders, and also used for lapping and finishing. Coarse fractions are supplied as raw material.
What is the minimum order quantity?
Standard micron powder from 1 kg, suspensions from 5 L. The minimum for a custom fraction is 10 kg. Send us your requirement by email and we will confirm the exact MOQ for your case.
How is pricing calculated, and what are the volume terms?
Prices are not published on this site. Cost depends on grade, particle fraction, quantity and delivery terms, and is confirmed by inquiry. Describe your requirement by email and we will send a quotation.
Which quality documents are available?
A COA is issued per batch on request. Test protocols from the Henan Provincial Quality Supervision & Inspection Center for Synthetic Diamond Micron Powder (Zhecheng) — China's only specialized state laboratory for micron powder — or from the National Center are available on request.
Are samples available?
Samples are available, but the sample fee and freight are paid by the buyer (collect); both are credited to the first order. DIAMTECH does not offer free samples.
What are the payment terms?
TT: 30% deposit, balance before shipment. An invoice is provided.