80x500mm PBT Glass Washing Roller Brush

An 80x500mm PBT Glass Washing Roller Brush is a cylindrical industrial brush designed to rotate against flat glass surfaces inside a washing machine. The 80 mm outer diameter and 500 mm filament-covered length define the contact envelope; the brush is not a hand tool but a driven component that mounts on a machine shaft.

The brush body consists of PBT filaments anchored around a central stainless steel core. PBT (polybutylene terephthalate) is chosen for this application because it combines enough stiffness to dislodge fine particles and oil film with enough flexibility to avoid scratching coated or polished glass. The stainless steel core resists corrosion in the wet, detergent-laden environment of a glass washing line and supports the filament pack at operating speed.

During operation, the brush rotates while the glass passes beneath or between brushes. Wash water or detergent solution is applied to the glass, and the rotating filaments loosen dust, polishing residue, fingerprints, oil film, and wash-water deposits so the rinse section can carry them away. The brush works as part of a sequence: pre-wash, brushing, rinsing, and drying. It does not replace rinsing or drying, but it determines how much residue reaches the final inspection station.

The quick-change coupling on the brush is designed to interface with common glass washing machine drive shafts. The exact coupling type—keyway, hex bore, or clamp—must match the shaft on the buyer’s line. Because the brush runs wet and continuously, the core and coupling are made from AISI 304 stainless steel as standard, with options for other grades where the wash chemistry requires it.

All dimensions and material choices can be adjusted during project development. The values above represent the standard configuration for an 80 mm OD × 500 mm working-length brush; custom diameters, lengths, and filament specifications are available.

• Flat glass washing lines feeding tempering, laminating, coating, or screen-printing processes, where dust, glass fines, and oil film must be removed before the next operation.
• Insulated glass unit (IGU) production, cleaning lites before spacer and sealant application to remove fingerprints, dust, and wash-water marks.
• Architectural and automotive glass processing, where coated or polished surfaces require scratch-free brushing on faces, edges, and seams.
• Solar panel and display glass washing, light contact cleaning of sensitive substrates without metal contamination.
• Glass edge processing lines, where the brush contacts cut or ground edges to pull away swarf and polishing compound before inspection or tempering.

First, confirm the machine interface. The quick-change coupling must match the drive shaft geometry on your washing line. Send the shaft diameter, keyway or spline dimensions, and any existing brush end drawing. A mismatch makes the brush impossible to mount, regardless of filament specification.

Then match the filament stiffness and density to the residue and the glass. Standard PBT filament with a standard fill removes dust, fingerprints, and light oil film from uncoated glass. Dense or extra-dense fill handles higher fines loads from grinding or seaming operations. For coated glass, choose finer filament (0.3 mm) and a softer trim to keep contact gentle; for heavier oil or wash-water film, a stiffer 0.5 mm filament with shorter trim length applies more scrubbing pressure without switching material.

Check the brush length against your line width. The 500 mm working length covers narrow to medium panes in a single roller; wider washing machines may need two or more rollers mounted end-to-end, or a custom longer brush can be built to match the conveyor width.

Consider the wash environment. AISI 304 stainless steel handles most municipal water and mild alkaline detergents. If your line uses acidic cleaners, high chloride water, or operates above 80°C, specify 316 stainless steel and confirm the PBT filament grade is suitable; PBT maintains stiffness up to about 120°C dry, but continuous wet operation above 80°C may shorten filament life.

When a PBT roller is not the best fit: use a nylon roller if the wash chemistry degrades PBT or if the glass requires a softer touch; use an abrasive-impregnated roller for heavy grinding residue or scale; use a softer filament or flap brush for very delicate coated glass; use a wider diameter or multiple brushes if the line needs more contact time.

Yes. The 80×500 mm dimensions are the standard configuration, but the brush can be adapted to the buyer’s machine and process. To define a custom configuration, provide the machine shaft drawing, glass width and thickness range, line speed, wash water temperature, detergent type, residue description, and any coating specifications on the glass.

We can adjust:

• Dimensions — outer diameter from 40 mm to 150 mm, working length from 100 mm to 3000 mm, and overall length to fit existing guards and drive positions.
• Core and coupling — stainless steel grade (304, 316, or duplex), shaft bore design, keyway, spline, or clamp interface, and end journal arrangement.
• Filament package — PBT filament diameter from 0.15 mm to 0.8 mm, trim length, fill density, straight or spiral setting, and hybrid fills with nylon or abrasive filaments in specific zones.
• End and edge treatment — filament density at the brush ends can be increased or tapered to protect glass edges or seams.
• Color and marking — custom filament colors for batch identification, plus core marking, laser etching, or pad printing on the coupling.
• Packaging — bulk cartons, individual protective sleeves, or custom skid packing for export.

If the project requires material declarations, inspection reports, or third-party testing for specific wash chemistries or glass coatings, we can assist with those requirements during the customization process.