Back to Basics: Randy Goss, service technician at Wikus Saw Technology Corp., has advice to improve blade life and cutting performance

Above: Randy Goss, Wikus Saw Technology Corp

November, 2024: Q: Why is a chip brush important on a band saw blade and machine?

A: A chip brush plays a crucial role in maintaining the blade and machine’s performance and longevity. It helps remove chips and debris, keeping the blade clean and helping it maintain its cutting efficiency. Accumulated debris can cause the blade to bind or cut inaccurately. Regularly clearing away debris reduces wear and tear on the blade and prevents excessive buildup that can lead to overheating, premature dulling or even blade failure. Debris also can cause irregularities in the cutting process.

Keeping the machine clean also helps prevent issues like clogged bearings or motor problems, as well as contributes to a safer work area. Debris buildup can cause accidents or create hazards, such as tripping or obstructing the blade’s path.

Q: How important is it to keep the coolant clean?

A: Clean coolant helps to lubricate and cool the band saw blade effectively, maintaining the proper cutting conditions. Dirty or degraded coolant can lead to poor cutting performance and finish. Contaminated coolant can harbor bacteria or fungi, which can create health risks for operators.

Coolant is essential for dissipating the heat generated during cutting. Dirty coolant can become less effective, which can lead to overheating of both the blade and the material being cut. Overheating can cause warping, inaccuracies and damage to the blade. Dirty coolant can cause corrosion or buildup inside the machine’s coolant system, including the pump and hoses. This can lead to clogging, reduced coolant flow and potential damage to the band saw. Clean coolant helps the system run more efficiently, reducing the need for frequent maintenance or adjustments. It also helps in prolonging the intervals between coolant changes. To keep your coolant clean, regularly check and filter it, and replace it as needed.

Q: How important is blade alignment?

A: Proper blade alignment ensures that the band saw cuts straight and accurately. Misalignment can lead to uneven cuts, inaccuracies in dimensions and poor quality of the finished product. An aligned blade experiences even wear and stress. Misalignment can cause uneven wear, leading to premature blade dulling, increased risk of blade breakage and more frequent blade replacements. Misalignment also can cause additional strain on the motor and other components, leading to potential mechanical issues and reduced overall performance, as well as defects in the cut material, leading to wasted materials and additional processing time.

In addition, an aligned blade is less likely to bind or kickback, which can reduce the risk of accidents and improve overall safety. Misalignment can cause unpredictable behavior, increasing the risk of injury, as well as excessive vibration, which can be both uncomfortable for the operator and damaging to the machine.

To maintain proper blade alignment, regularly check and adjust the blade tension, tracking and guides. This will help ensure optimal performance, safety and longevity of both the blade and the band saw machine.

Q: How important is blade tension on a band saw blade?

A: Blade tension is critically important. Proper blade tension ensures that the blade remains stable and maintains its alignment during cutting, and it minimizes unnecessary vibration and noise during operation. If the tension is too low, the blade can wander or deflect, leading to inaccurate cuts. Conversely, too much tension can cause the blade to stretch or break.

Correct tension helps evenly distribute the stress across the blade, which reduces premature wear and extends the blade’s lifespan. A blade with insufficient tension can experience excessive wear and fatigue, while over-tensioning can lead to deformation and premature failure. Adequate tension allows the blade to cut smoothly and efficiently. It helps maintain the blade’s sharpness and ensures a cleaner, more precise cut. Inconsistent tension can cause rough or uneven cuts.

Proper blade tension helps the band saw operate more efficiently. Incorrect tension can cause the machine to work harder, leading to increased wear on other components and potentially affecting overall performance. An improperly tensioned blade also can be unstable and prone to slipping, which increases the risk of accidents and can lead to dangerous blade breakage.

To ensure proper blade tension:

• Use a blade tension gauge or follow manufacturer guidelines to regularly check and adjust the tension.

• Adhere to the specifications provided by the blade and band saw manufacturers. •

Pay attention to the cutting performance and make adjustments if you notice changes in cut quality or blade behavior.

Wikus Saw Technology Corp., wikussawtech.com.