Run the blade at the RPM printed on the label, which keeps the cutting edge near 80–100 m/s surface speed. Typical values: 115 mm blades ~13,000 RPM, 230 mm ~6,500–7,000 RPM, 350 mm ~4,000–4,500 RPM, 500 mm ~3,000 RPM. Never exceed the rated maximum.
| Diameter | Typical Max RPM | Surface Speed |
|---|---|---|
| 115 mm | 13,300 | ~80 m/s |
| 125 mm | 12,250 | ~80 m/s |
| 180 mm | 8,500 | ~80 m/s |
| 230 mm | 6,600 | ~80 m/s |
| 300 mm | 5,100 | ~80 m/s |
| 350 mm | 4,400 | ~80 m/s |
| 500 mm | 3,050 | ~80 m/s |
A>The blade glazes and heats up because it is rubbing instead of cutting. Raise to the rated speed.
A>No. Above the rated speed the bond erodes fast and the blade can distort or shed segments.
A>Check the label on the blade — it lists the maximum RPM for that diameter. Match your machine to it.
Keep the blade near its rated surface speed and never exceed the label. For dependable stone cutting at the right speed, blades like the Granite Saw Blade (Long Segment) — JOY-GR-L and Dekton Saw Blade (Normal Core) — JOY-DK-NC are rated for their diameters.
