Quick Answer

For aggressive stock removal, choose wide, tall segments (10-15 mm high) with open gullets and a segment shape that exposes more diamond—usually a parabolic, arrow, or double-S profile. Rounded segments cut smoother but slower; square segments cut faster but leave a rougher scratch. Match the shape to the bond, not just the look.

Common Segment Shapes

Shape	Best for	Behavior
Square / flat	Soft concrete, fast stock removal	Aggressive, deep scratch
Double-S / parabolic	General purpose	Balanced cut, self-sharpening
Round / crescent	Hard concrete, finishing	Smooth, less aggressive
Arrow / spike	Very hard concrete, rough grinding	High impact, open chips

Our double-S segment discs uses a double-S segment for balanced daily production.

Segment Height Matters

A 12 mm segment lasts about 2-3 times longer than a 5 mm segment on the same machine. Taller segments also run cooler because more bond volume is available to wear. For aggressive work, specify 10-15 mm segments.

Open Gullets Prevent Loading

Segment spacing is as important as shape. Open gullets let concrete dust evacuate, which keeps the diamonds cutting. Closed or dense segments load up on soft material. See our concrete grinding discs category for open-arrangement discs.

Frequently Asked Questions

Q: Which shape removes the most concrete per pass?

Square segments on soft-bond tooling, on soft to medium concrete. On hard concrete, arrow segments win.

Q: Does segment shape matter for polishing?

Less so. By 120 grit you are refining, not stock-removing.

Q: Can I mix shapes on one turret?

No. They wear at different rates and create an uneven scratch pattern.

Conclusion

Aggressive grinding is about tall segments, open gullets, and a shape matched to your concrete hardness. contact JOY TECH if you tell us your concrete type, we will recommend the exact segment.