Blade Teeth Selection Advice and Welding Joint

How to Improve Life

• Blade installation is the first step, make sure teeth is shown outside the guide, and blade strip is clamped tightly inside the guide.
• Teeth direction should be the same with the direction of wheel rotation, twist the blade from inside to outside if teeth direction is opposite.
• Running-in is required when blade cuts metal for the first time. Its important for blade life. During running-in, cutting speed should be 1/3 of normal speed, feed should be 1/4 of normal feed. Usually, after the blade cuts the first several pieces, like 5-10 pieces, adjust cutting speed and feed gradually to normal speed according relative parameters and your metal.
• Blade tension will be different for differnt wide blades, as time goes on, blade tension will be reduced by the bandsaw and blade stretch, make sure the blade is correct tension, our recommended blade tension is 300N/mm2.
• Coolant will be useful to cool and lubricate blade and teeth during cutting, better coolant could avoid overheat on the teeth of the blade, and reduce friction between the blade and the metal you cut.
• Teeth selection is also important, here are our experience:

1. big variable teeths (like 3/4TPI, 4/6TPI, 5/8TPI) are for cutting ferrous solid rod with big diameter;
2. big constant teeth (like 6TPI) is for cutting ferrous solid rod with small diameter;
3. big variable teeth (like 6/10TPI) is for cutting aluminum, copper, brass etc and other non-ferrous metal;
4. middle variable teeths (like 8/12TPI, 10/14TPI) are for ferrous thick tubing, profile, sheet, plate etc;
5. small constant teeth (14TPI) is for general purpose;
6. small variable teeths (like 12/16TPI, 14/18TPI) is for ferrous thin tubing, sheet, plate, profile etc;
7. small constant teeth (24TPI) is for ferrous thin tubing, plate, sheet etc, dont cut non-ferrous metal, like aluminum etc.