Quick Answer

Choose 28–32 beads per meter for hard stone like granite, 30–40 beads per meter for concrete and reinforced work, and 24–28 beads per meter for softer abrasive stone like marble. More beads mean faster cutting and higher cost; fewer beads last longer on abrasive material.

What Bead Density Controls

• Cutting speed: more beads = more diamond contact = faster cut.
• Cost per meter: bead count drives the price of the wire.
• Wire life: fewer beads on abrasive stone reduces premature wear.
• Surface finish: denser beads give a smoother cut face on hard stone.

How to Choose Beads per Meter

Material	Beads / Meter	Bead Type
Concrete, reinforced	30–40	Standard, fast cut
Granite	28–32	Hard-bond bead
Marble, limestone	24–28	Soft-bond bead
Mixed demolition	32–36	General purpose

How to Use It Correctly

• Match bead bond to hardness: hard bond for hard stone, soft bond for abrasive stone.
• Keep the wire tensioned and aligned to avoid twisting.
• Control feed speed so the wire cuts, not rubs.
• Use water cooling for long cuts and to flush slurry.

Frequently Asked Questions

Q: What is a normal beads-per-meter count?

A:Most concrete and granite wires use 28–40 beads per meter. Check the spec of the wire before ordering.

Q: Do more beads cut faster?

A:Yes, up to a point — more diamond contact means faster cutting, but the wire costs more and wears differently on abrasive stone.

Q: Can I use the same wire for concrete and granite?

A:Concrete wire is more aggressive; granite wire has a harder bond. Dedicated wires cut better and last longer.

Conclusion

Choose bead density by material: dense for concrete and granite, lighter for marble. The Diamond Wire Saw for Concrete — JOY-WS-C handles demolition concrete, while the Diamond Wire Saw for Granite — JOY-WS-G suits granite block cutting.