Coolants and lubricants play a pivotal role in enhancing bandsaw blade performance and longevity, offering numerous advantages:
Lubricants serve multiple purposes during cutting. They mitigate heat generated by blade friction, preventing material fatigue and eventual cracking. Simultaneously, they lubricate the blade and wheels.
Coolants, on the other hand, extend blade life by cooling the cutting edge and blade guides, averting premature fatigue and warping. They also sweep away swarf, bits, or chips, preventing lodging, clogging, and damage.
Coolants are predominantly employed when cutting metals, as metals do not absorb lubricants, unlike porous materials like wood. Wood can carry lubricants along the blade’s path. However, some machines and operators abstain from lubricant use, requiring reference to user or operator manuals.
Various types of coolants and lubricants cater to specific materials. While the terms “lubricant” and “coolant” are sometimes used interchangeably, they serve distinct purposes.
The following section focuses on two fluid application methods, enumerating their respective pros and cons:
Spraymist:
Pro’s
- Utilizing 100% neat oil for lubrication offers notable advantages, such as superior blade and tool longevity due to exceptional lubrication.
- This method is more cost-effective, eco-friendly, and minimizes fluid runoff, enhancing safety within the workspace.
- Additionally, it simplifies the cleaning process for both the machine and cutting debris.
Cons
- 100% neat oil, while effective for lubrication, has a limited cooling effect, which is essential for blade longevity.
- In cases of nozzle clogging in a spraymister system, the mist may disperse inaccurately, leading to potential cleanup delays and efficiency losses.
Flood Cooling
Pro’s
- Flood Cooling is many times better at keeping the blade cool throughout the cutting process, which leads to a prolonged life of the bandsaw blade.
- It is easy to wash away any debris or bits that have built up on or around the bandsaw blade table.
- Using the correct oil can also provide good lubrication.
Con’s
- Can cause a lot of mess if not maintained properly, and fluids can end up in the surrounding areas, leading to man-hour losses when cleaning both the machine and surrounding areas.
- Incorrect fluids or volumes mixed may cause corrosion to appear on the bandsaw blade or the materials being cut.
So we always advise you to check with your user or manufacturer’s manual or guide to see if it is something you will or will not need or if it’s something your machine offers.