Diamond Cutting Tools
The largest single category we source, and the one where specification drift between factories is most expensive: a blade that looks identical can lose 40% of its life from a different bond formulation.
What this category covers
Diamond cutting tools for construction and stone working:
- Segmented blades — general purpose, for cured concrete, block and brick
- Turbo and rim blades — continuous rim for tile and porcelain, turbo rim for faster cutting with some chipping
- Laser-welded blades — for dry cutting, where the segment must not separate under heat
- Stone blades — granite and marble specific, with different bond hardness for each
- Asphalt blades — softer bond, designed to wear and expose fresh diamond
The parameters that actually matter
Buyers who only compare price per piece usually regret it. These are the variables that determine life:
Bond hardness. Metal bond hardness must match the material’s abrasiveness. A bond that is too hard glazes on hard, dense material — the diamonds wear flat and the blade stops cutting. Too soft and the segment wears away before the diamond is spent. Granite wants a harder bond than asphalt; concrete sits in between and varies by aggregate.
Diamond grade and concentration. Concentration is measured in 4.4-carat units per cm³ of working layer. Higher concentration is not automatically better — above a point it increases cost without proportional life.
Segment geometry. Segment height determines total life; segment width determines kerf and therefore how much material is removed. A wider segment cuts slower and takes more power.
Core steel. The core is what fails catastrophically. Look at the steel grade, the tensioning, and the weld method.
Where it comes from
Most of the world’s diamond segments are sintered in Henan. The diamond grit originates in Zhengzhou and Nanyang, the metal powders are locally supplied, and the sintering shops cluster in the same industrial zones. A buyer dealing with a “diamond tool supplier” in Guangdong or Zhejiang is very often buying from a trading company that sources back to Henan.
We are already here, which removes one layer between you and the press.
Common sourcing failures
- Segment height checked, bond not. Two blades can share a drawing and behave completely differently.
- Weld porosity. Invisible from the outside, fails in service. Destructive sampling on a few units catches it.
- Steel substituted. Core thickness reduced slightly to hit a price point, then the blade flexes and cuts off-line.
What we need to quote
Send us: material being cut, machine type and spindle power, wet or dry, blade diameter, and expected life per blade if you have a current benchmark. If you only have a photo of the blade you currently use, that is enough to start.
Sourcing cutting tools? Send the application details and we will come back with three to five factory quotes.
Ready to price your order?
Tell us the specification. Three to five factory quotes come back within five working days.