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Daily Archives: November 4, 2014

Gullet Cracks

There is no substitute for a well designed, properly maintained, and fully functioning bandsaw machine. When things go wrong, it is usually due to maintenance having been avoided for any length of time. Avoiding gullet cracks is part of an ideal maintenance procedure. The gullet is the second hardest working bandsaw feature. A properly cleaned gullet is critical to achieving correct cut, appropriate band cooling and lubrication, and for adequate chip removal to occur. Gullet cracking stems from a number of variables, but the likely cause is the machine and not the blade. Band straightness, too tight blade guides, too high blade tension, too heavy a …

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Vibration and Chatter

Vibration, worn wheels, ill-fitted belts, wobbly blades, and shoddy performance are all the result of bandsaw machine equipment neglect, malfunction, or both. They are also known causes of excessive noise in operation. By minimizing these sound issues, work environment is improved while raising bandsaw performance levels. Below are a few causes for excessive machine noise and vibration with possible solutions to the problem. Try switching blades — the raker and an off-set tooth pitch might cut down on squeal due to the left, right, off-set tooth pattern on the blade. Too low a feed rate — increase feed pressure. Check the guides — if they are cool …

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Guide to Saw Blade Guides

Blade guides are important in helping to support the saw blade. Less support is offered if the guides are set too far apart. Too close, and there is a tendency for the blades to break if unable to move freely. Maintaining an equal amount of space within the guides where the blade is held is key. Blade guides are usually a molded piece of carbide or ceramic material fitted close to the bandsaw blade. The guides are adjusted using a knob to raise, lower, or move side to side to accommodate material thickness and saw blade size. Standard bandsaw machines come with saw guides. Their …

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Issues with Productivity

Premature run-out is a common productivity issue for bandsaw operators and will occur during the busy times. Careful planning will work to eliminate certain issues in production, and there are several factors involved to help resolve and prevent productivity issues from ever having to crop up. It is never a bad thing to abide by the rules of bandsaw operation. Thinking that daily maintenance checks are a waste of production time may prove costly, and not checking for possible slow-down issues with the machine and blade prior to any cut could end up costing even more. There are ways to avoid productivity issues without sacrificing time, cost, …

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