Don't Be Abrasive

Abrasives are a much-needed tool for manufacturers but can quickly become problematic when used inside CNC machines.

Unlike grinding machines, or finishing systems like the MAX, CNCs are not built with bagged filtration systems that are able to handle the loads of swarf produced during product cycles. While they might include circulatory pumps, they don’t have the necessary systems that are able flush out and rid the machine of these larger damaging particles.

Not only do the chips removed by the abrasive collect within the machine, particles from the abrasives themselves will also clog it. There’s a misconception that brushes are gentler abrasive tools and don’t shed like other abrasives, so many people will put them inside of their CNCs thinking they will be less harsh than other methods. But brushes wear down too, and that matter doesn’t just disappear—it gets ground off into a thin dust which will also settle along the bottom of the machine. These brushes use materials such as zirconia, ceramic, aluminum oxide, and silicon carbide, just as other abrasives do.

“People think brushes are different because they don’t create sparks,” clarifies Scott Richards, Vice President of James Engineering, “but if you research [their] active ingredients you’ll see they use the exact same kind of abrasive.”

What ends up happening inside of these CNC machines is the abrasive gets trapped and stuck between their ways and slides. These mechanisms require smooth movement, and when abrasive gets stuck in the oil barrier that helps these pieces of metal slide together, it starts to eat away at them with their continuous movement. “In a way, it’s like your creating sandpaper,” says Richards, “It’s literally wearing your machine out.” As these slides continue to work despite the abrasive, operators will notice the oil barrier turn black, a classic sign that there’s already a large buildup that’s been accumulated.

“Usually when people look for a deburring machine, they’re looking for one to do lots of parts. If we’re making just a couple of parts, one sheet of Scotch-Brite will last you several days, if not one week,” Richards explains, “That’s roughly one ounce of abrasive falling under your ways and slides. One ounce isn’t a big deal. But when our customers are deburring a part every 15 seconds, that’s a whole different scenario.”

When shops produce at high volumes like this, having a machine made specifically for deburring is imperative to maintaining a smooth operation. Yes, CNCs are capable of deburring, but their true strengths lie in cutting parts. So when a CNC, a cutting machine, is paired with a deburring machine, such as the MAX System, shops can produce higher quality products at higher rates.

“The MAX isn’t trying to compete with CNCs,” Richards reassures, “It is meant to compliment CNC machines by letting them do what they do best: make parts.”

One of the key differences between the MAX and a CNC is that they MAX is made to handle abrasives of all different kinds. “Our machines can use anything that anyone can throw at it,” Richards states. “Scotch-Brite, grinding wheels, brushes… we’re designed for abrasive. We’ve taken away all sensitive ways and slides, replaced them with [overhead] linear motion… the MAX is resistant to abrasive.”

Digging into that a little deeper, Richards reveals that all of the MAX’s vital components are stored in the roof and can be retracted when not needed. This means that harmful swarf is unable to collect between the different mechanics and clog up the system. “Our machines that are out in the field and have been for 10 years are still showing no signs of wear—because of the design.” The MAX is also built with special bagged filters that ensure any leftover swarf is washed out of the machine; approximately 220 gallons of wash solution are pumped through it per minute, which not only cleans out the MAX but washes off the processed parts as well, preparing them further for assembly.

Abrasive doesn’t have to be, well, abrasive against your machines—by pairing your CNC with the MAX, you not only spare your CNC the pain of unnecessary wear, but you increase production quality and quantity. The MAX was created to be a partner to CNCs, not a competitor—seeing as it is unable to cut parts itself, it needs the CNC to complete its job! The MAX takes the abrasive out of CNCs so that they can put all their focus on cutting parts with long-lasting efficiency and precision.

If you’re tired of abrasive grating on your operation, invest in the MAX. Made to handle abrasives of any kind, it won’t back down from any project you may throw at it.

To learn more about what all the MAX has to offer, click here or call us at (303) 444-6787