100x600mm Conductive PCB Roller Brush

A 100x600mm Conductive PCB Roller Brush is a cylindrical brush roll with a 100 mm outer diameter and a 600 mm face length, built for mounting into inline PCB cleaning machines or brushing stations. The bristles are conductive nylon filaments, the core is carbon fiber composite, and the brush connects to the machine spindle through a quick-change coupling.

During operation, the roller rotates against the moving board, sweeping debris from the surface and, depending on filament configuration, from between low-profile components. It is typically positioned above or below the conveyor, with contact depth adjusted to apply the right amount of brushing pressure.

This brush is designed for light to moderate debris removal on static-sensitive electronic assemblies. It is not intended as a heavy scrub brush for removing baked-on flux, cured adhesives, or large solder balls. The conductive property is the defining feature: ordinary brushing can generate static electricity that attracts more particles or damages sensitive parts. By conducting charge away from the contact point, this roller keeps the cleaning action from creating a new contamination problem.

All dimensions and materials can be adjusted for your machine and process. The table lists the standard configuration for this product.

• Inline PCB cleaning machines after depaneling or routing — removes dust and fiberglass particles from board surfaces before solder paste printing or component placement.
• Post-reflow / post-soldering cleaning lines — sweeps away light flux residue and loose solder balls from the board surface (not aggressive enough for heavy baked-on flux).
• Pre-coating / pre-inspection stations — static-free cleaning before conformal coating, AOI, or final inspection.
• Conveyor brushing of panels, carriers, and assembly fixtures — removes lint, dust, oxide, and static-attracted particles from reusable carriers and pallets.
• Cleanroom or ESD-protected areas — where ordinary brushes would generate static and re-contaminate the product.

Start by confirming machine compatibility. Measure the existing brush or spindle interface: mounting diameter, coupling type, overall length, rotation direction, and available clearance. The quick-change coupling must match the machine’s receiver or adapter, or an adapter must be available.

Then evaluate the contact requirements. The 100 mm diameter and 600 mm face length are standard for many lines, but if your boards are wider than 600 mm, you may need multiple rollers or a custom longer roll. Check that the brush face covers the full board width, including edge clearance.

Filament stiffness is the main cleaning trade-off. Softer conductive nylon filaments are gentle and suitable for dust, lint, and loose debris on delicate surfaces. Stiffer filaments apply more scrubbing force and can remove light flux residue or slightly adhered particles, but they increase the risk of damaging components or lifting edges. Specify the residue type and board sensitivity to get the right balance.

If static dissipation is critical, verify the resistivity of both the filaments and the core. A common upper limit for ESD-protected areas is 106 Ω surface resistivity. Ensure the coupling provides a continuous ground path to the machine frame.

Consider the operating environment: conductive nylon performs well in dry or lightly damp processes with compatible solvents. Avoid continuous exposure to strong acids, concentrated alkalis, or temperatures above 80 °C. For wet cleaning with aggressive detergents, PBT or polypropylene filaments may be more suitable, though they are not conductive.

Below is a quick reference table for common scenarios.

Yes. Conductive PCB roller brushes are usually configured to the specific cleaning machine and process. To define a custom configuration, provide the machine make and model, existing brush dimensions, spindle/coupling details, line speed, board width and thickness, residue type, and any ESD resistivity requirements. A drawing or sample photo speeds up the process.

We can adjust:

• Dimensions — outer diameter, face length, overall length, core diameter, and trim length.
• Filament material and conductivity — conductive nylon is standard, but other conductive plastics or different resistivity ranges are available.
• Filament geometry — diameter, shape, crimping, and pattern (straight, helical, segmented).
• Core material — carbon fiber composite is standard; aluminum or steel with conductive coating may be offered for special interfaces.
• Coupling type — match your machine’s quick-change system or integrate a custom adapter.
• Color and marking — color coding for identification, laser marking of part number, or custom labeling.
• Packaging — individual anti-static bags, bulk packaging, or project-specific packing.

If your project requires resistivity testing, material documentation, dimensional inspection, or third-party verification, we can assist with those requirements during the customization process.