What’s the Modulator and Why is it Important?

Do you know what sets a Comco micro-precision sandblaster apart from others? In short, It’s our modulator. This pulsing heart of our system transforms the technology from a dirt sprayer into a precision tool. 

Think of it like…

  • A spray-paint can: If the spray nozzle clogs or if the paint-can lacks a solid spraying mechanism, the targeted canvas surface may end up with blotches of paint. Comco’s modulated feed produces a steady mixture of air and abrasive that prohibits clogs, clumping, bursts of abrasive, sparse mixtures, etc. The steady stream of abrasive produces a uniform and repeatable surface finish.
  • A salt shaker:  the technology of other blasters relies on a series of components that is similar to a salt shaker. They shake abrasive out into the air stream, and that means an unreliable amount of abrasive exits the nozzle. Comco’s blasters feature a modulator that pulses consistently, pulling the same amount of abrasive particles into the abrasive stream with every pulse.

Watch our quick video to understand how it works:

The AccuFlo’s Modulator Lasts Longer

All Comco micro-precision sandblasters feature this key component; however, the AccuFlo®, our latest edition in the MicroBlaster® line, features a stronger, more durable version. This improvement delivers a stronger pulse of air into the mixing chamber, fluidizing the abrasive better. The AccuFlo’s modulator lasts up to 5,000 hours of operation, whereas a modulator on a Classic MicroBlaster lasts around 500 hours.

The modulator on Comco's AccuFlo lasts approx 5,000 blast hours.

Dig Deeper


Colin Weightman, Director of Technology

Questions about MicroBlasting?

Email me or give me a call at 800-796-6626.