400mm PP Road Sweeper Side Brush

A 400mm PP Road Sweeper Side Brush is a circular edge-cleaning brush mounted on the side arm of a road sweeper. The brush rotates over the curb and gutter line and directs loose material toward the suction nozzle or main broom. This configuration uses polypropylene filaments set into a round tufted pattern on a powder-coated carbon steel backing plate with a quick-change mounting hub.

During operation, the side brush runs on a vertical or near-vertical axis at the sweeper’s flank. The long PP filaments sweep across the pavement edge, curb face, and gutter pan while following small surface irregularities and joints. The brush’s job is edge capture and transfer, not full-width sweeping. It works as part of the machine’s cleaning sequence: side brush moves material into the collection zone, main broom or vacuum picks it up.

The 400 mm size is a common aftermarket and OEM diameter for compact and mid-size truck-mounted sweepers, but fit depends on the machine’s arm mounting interface, spindle, and brush guard clearance. When replacing an original or third-party brush, the hub pattern and rotation direction must be matched to the arm.

The table shows the standard configuration referenced by this product name. Bristle gauge, tuft density, plate thickness, and hub geometry are finalized when the sweeper make, model, and arm interface are confirmed.

• Municipal street sweeping — curb lines, gutters, and shoulder edges where wind and traffic push sand, leaves, litter, and fine debris against the curb.
• Parking lot and logistics-yard edges — distribution centers, retail lots, and industrial aprons where material accumulates at curbs and wheel stops.
• Construction access roads — loose aggregate, dried mud, and road dust along the pavement edge on site entrances and haul roads.
• Post-winter cleanup — road salt, sand, and grit residue concentrated along curbs and medians after snow removal.
• Ports, terminals, and similar paved yards — spillage and light debris along curbed perimeter areas.

Start with the machine interface. Confirm the hub bore, bolt circle, retaining method, and quick-change coupling style on your sweeper arm. A 400 mm brush will only fit if the arm and brush guard are designed for this diameter. Forcing a mismatched hub or drilling new holes changes balance and can damage the spindle.

Match the filament to the duty. PP is the right standard material for general municipal dust, sand, leaves, and litter. If the route includes heavy abrasive mineral, crushed stone, or mill scale, consider a nylon, PBT, or wire-blend filament with higher cut and impact resistance. If the brush runs close to hot machine surfaces or exhaust components, verify the temperature limit of the filament before selecting PP.

Set trim length for contact and compliance. The standard 220 mm trim provides the reach and flexibility to follow ordinary curb and gutter contours. A shorter trim applies firmer scrubbing pressure for packed residue but wears faster at the tips. A longer trim follows deeper curb joints more easily but reduces effective stiffness. Match trim length to the curb profile and arm pressure on the route.

Check the base plate for the environment. Powder-coated carbon steel covers most wet and dry municipal conditions. Coastal salt spray, constant water immersion, or frequent chemical washdown justify stainless steel or an upgraded coating system on the plate and hub.

When to use a different brush. If the route requires breaking up hardened mud cakes, compacted ice, or heavy rock edges, a stiff wire brush or a different edge tool is more suitable. The PP side brush is for edge collection and transfer; it is not a substitute for the main broom or for an abrasive cleaning attachment.

The 400 mm PP configuration is a starting point, not a fixed product. We can adjust the brush to match the sweeper model, route conditions, and replacement program. To define the custom configuration, provide the sweeper make and model, arm mounting dimensions (hub bore, bolt circle, center hole, drive pin or quick-release style), rotation direction, current brush diameter and trim length, and the main residues on the route. A drawing or photo of the existing brush and arm helps shorten the process.

We can adjust:

• Diameter — near-400 mm alternatives such as 350 mm or 450 mm when the arm and guard allow it
• Filament material — PP, nylon, PBT, or mixed-filament configurations
• Trim length and density — filament length, gauge, tuft count, tuft pattern, and set angle
• Backing plate — plate thickness, material, coating, or stainless steel option
• Mounting hub — quick-change coupling, bolt circle, bore, or custom interface matched to the machine
• Color and marking — filament color, plate color, pad printing, laser marking, or identification coding
• Packaging — bulk, individual carton, replacement-kit, or project-specific packing