WPS Glass Bead Dispenser

The Hofmann WPS Roller Glass Bead Dispenser is a hand-guided roller-type glass bead spreader for road marking operations, built with overall dimensions of 1,000 mm (L) x 850 mm (W) x 1,000 mm (H) and a total operating weight of approximately 45 kg. The glass bead container holds up to 22 liters. The spreading width is steplessly manually adjustable across a line width range of 10 to 50 cm, controlled directly by the operator during the bead application run. The spreading roller is driven by a direct chain transmission from a ground wheel — the forward movement of the dispenser generates the roller rotation automatically without any separate power source, motor, or battery. Standard spreading output is approximately 380 to 660 g/m², with an optional configuration delivering approximately 540 to 1,020 g/m² for higher bead loading requirements. Actual spreading rate varies with glass bead size and mixing ratio.

The chain-driven ground wheel mechanism ensures the spreading roller speed is consistently proportional to the forward travel speed of the dispenser — the bead application rate per square meter remains controlled across varying operator walking speeds. The stepless manual width adjustment allows the operator to match the bead spread width to the line width being marked in the preceding pass, without requiring tool changes or separate adjustment hardware. The 22-liter container capacity reduces refill frequency during extended marking operations. The dispenser is used after the marking material has been applied to the road surface — the glass beads are spread into the wet or freshly applied marking compound before it sets, embedding the beads into the surface for retroreflectivity.

The Hofmann WPS Roller Glass Bead Dispenser is deployed on road marking projects wherever machine-applied bead spreading is not possible and hand-held dispensing is impractical or uneconomical — including patching and repair work, pedestrian crossing refreshes, stop line applications, narrow zone markings, and manual marking operations on footpaths, cycle lanes, and restricted-width road sections where full marking machines cannot be positioned.

Leader Infra supplies this chain-driven roller glass bead dispenser for road marking contractors and highway maintenance teams — providing steplessly adjustable hand-guided bead spreading from 10 to 50 cm line width at application rates up to 1,020 g/m², in a single manually operated unit requiring no external power source.

FAQ — Why does the WPS Roller Dispenser use a chain drive from the ground wheel rather than a separate motor for spreading roller drive? The chain drive from the ground wheel directly links spreading roller speed to the operator’s walking pace — as travel speed increases or decreases, the roller rotates faster or slower in direct proportion, keeping the bead application rate per unit area consistent. A separate motor would require speed management by the operator to match travel speed, introducing the risk of over- or under-application at different walking speeds during the marking run.