Screen & Sieve Cleaning

The main difficulty is removing carryback, powder, fibers, chips, sticky product, and scale from belts, screens, drums, rollers, guides, and machine surfaces without damaging the surface, loading the brush, or carrying contamination back into the process.

The work happens in outdoor and dry indoor area against sand and gravel, dust and aperture-blocking particles.

The part people get wrong: this is not one job. The same equipment carries several targets, each with a different opening and a different residue, and one brush rarely covers them all.

There are 5 distinct targets here, and the brush that suits one will usually not reach another.

The dimensional envelope those targets impose on the brush:

Roller or rotary screen brush, strip wiper, small hand brush or cleaning-ball system.

The layouts this application is normally built in:

• Driven brush — use when carryback, powder, fibers, chips, sticky product, and scale needs repeatable scrubbing or controlled relative movement
• Passive or free-running brush — use for loose contamination and lower process complexity on belts, screens, drums, rollers, guides, and machine surfaces
• Localized hand, strip, or tube brush — use where only an edge, gap, port, or maintenance point needs contact

In practical brush terms: reach first, then residue. A brush that fits but is too soft can be stiffened; a brush that does not fit is simply the wrong tool.

Nylon/PBT/PP for general cleaning; natural fiber for gentle dry sweeping; wire only for robust approved metal screens.

The constraints this application puts on the filament:

Aperture and wire diameter set the fill, the accessible side sets the tool type, and the screen dimensions set the width.

The order that avoids rework:

1. Identify the target part and measure the access opening or clearance
2. Describe the residue: what it is, how thick it sits, and how strongly it holds
3. Choose the construction that can physically reach that target
4. Set the filament from surface risk, working temperature and cleaning chemistry
5. Fix filament diameter, free trim length and density for the contact pressure you need
6. Run one cycle and check the result before committing to a production quantity

Before you commit to a quantity, send the aperture size, the wire diameter, the screen dimensions, and which side is accessible.

Ultrasonic cleaning, air knives and cleaning balls or sliders clear blinded apertures without a bristle touching the weave. A screen that is stretched, torn or has opened at the aperture is replaced, because brushing accelerates that failure.

• Giving screen size but not aperture and wire diameter, so the fill cannot be matched to the opening
• Changing brush material while leaving excessive engagement, poor alignment, or no discharge path unchanged
• Copying a worn brush without recording motion, direction, mounting, and the original working diameter

When a brush is running but not cleaning, start here rather than adding pressure: