Operation Tips
HOW TO DO THE BREAK-IN?
For Bimetal Band Saw Blades
- Use the recommended band speed for the material you want to cut.
- Reduce the feed rate by 30-40%
- Run the blade for 30-60 min and slightly increase the feed with every cut.
- Set band speed and feed rate as normal.
For Carbide Band Saw Blades
- For the first cut, set feed and band speed parameters as for a Bimetal.
- For the second cut, increase band speed while avoiding vibration.
- Then increase feed to match band speed while avoiding vibration.
- Repeat second cut till you have reached normal parameter settings for a Carbide Blade.
SPEED CHART
For Bimetal Band Saw Blades
| Steel grade | Dimension ф (mm) | 100 | 200 | 300 | 400 | 500 | 700 | 1000 |
|---|---|---|---|---|---|---|---|---|
| Carbon steel/Low alloy steel | Band speed (m/min) | 50-85 | 50-75 | 45-65 | 40-50 | 35-45 | 30-40 | 25-35 |
| Efficiency (cm2/min) | 45-70 | 50-80 | 45-65 | 35-50 | 35-45 | 25-35 | 20-30 | |
| Cr alloy steel/Cr-Mo steel/Ni-Cr-Mo steel | Band speed (m/min) | 50-65 | 50-60 | 45-55 | 40-50 | 35-45 | 30-40 | 20-30 |
| Efficiency (cm2/min) | 30-50 | 40-48 | 35-42 | 30-40 | 28-36 | 22-32 | 16-25 | |
| Mold steel/Hot-work steel/Cold-work steel/Tool steel | Band speed (m/min) | 24-40 | 24-40 | 22-40 | 20-35 | 20-35 | 18-30 | 16-25 |
| Efficiency (cm2/min) | 8-20 | 16-30 | 14-30 | 12-28 | 12-28 | 10-25 | 8-18 | |
| Stainless steel | Band speed (m/min) | 40-50 | 35-45 | 35-40 | 28-35 | 25-32 | 20-28 | 18-25 |
| Efficiency (cm2/min) | 20-30 | 28-35 | 26-32 | 20-30 | 18-25 | 15-22 | 10-18 |
- The chart is only for materials with hardness of 20 HRc or 225 HB. When hardness is ~30 HRc or 283 HB, slow the speed to 70% of the recommended value in the chart. When hardness is ~35 HRc or 330 HB, slow the speed to 60% of the recommended value in the chart. Bi-metal is not recommended for workpieces with hardness higher than 40 HRc.
- Actually, bandsawing parameters are strongly affected by external factors like machine condition, materials, fluid, etc. So your experience is very important.
For Carbide Band Saw Blades
| Steel grade | Dimension Ф (mm) | 100 | 200 | 300 | 400 | 500 | 700 | 1000 |
|---|---|---|---|---|---|---|---|---|
| Hard wood | Band speed (m/min) | 1200-1500 | 1200-1500 | 1200-1500 | 1200-1500 | 1200-1500 | ||
| Efficiency (cm2/min) | 6500-7200 | 1800-2000 | 1800-2000 | 1500-1600 | 1500-1600 | |||
| Aluminum alloy | Band speed (m/min) | 1200-1500 | 1500-2000 | 1500-2000 | 2000-2500 | 2000-2500 | 2000-2500 | 2000-2500 |
| Efficiency (cm2/min) | 1000-1200 | 1000-1200 | 1000-1200 | 1400-1800 | 1400-1800 | 1400-1800 | 1400-1800 | |
| Stainless steel | Band speed (m/min) | 25-30 | 25-30 | 25-30 | 25-30 | 25-30 | 25-30 | |
| Efficiency (cm2/min) | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 4.5-5.5 | 4.5-5.5 | 4.5-5.5 | ||
| Case-hardened steel | Band speed (m/min) | 40-50 | 40-50 | 35-45 | 35-45 | 35-45 | ||
| Efficiency (cm2/min) | 10-15 | 10-15 | 10-15 | 10-15 | 10-15 | |||
| Titanium alloy | Band speed (m/min) | 30~45 | 30~45 | 30~40 | 30~40 | 25-35 | 25-30 | 20~25 |
| Efficiency (cm2/min) | 14-18 | 14-18 | 14-18 | 12-16 | 12-16 | 10-14 | 10-14 | |
| Superalloy | Band speed (m/min) | 25-30 | 25-30 | 20-25 | 20-25 | 20-25 | 20-25 | |
| Efficiency (cm2/min) | 3.5-8 | 3.5-8 | 3.5-7 | 3.5-7 | 3.5-6 | 3.5-6 |
