Variable Width Spreader Box

Bergkamp's Variable Width Spreader Box (VSB) provides better flexibility for micro surfacing contractors that work on highways, roads and other pavements where the width fluctuates throughout the job.

• The VSB can expand and contract while paving so you don’t have to stop when the road changes—eliminating unwanted construction joints and increasing pavement driving quality
• It has four augers; the first two feed the material to the center of the box while the other two evenly distribute the mix during placement
• As the box adjusts, the augers remain equally spaced apart so you get an even placement and a smooth finish
• Even at the smallest width, the auger blades never touch, making it easy to clean because the micro surfacing material doesn’t build up between them
• The VSB is available in 8- to 13-foot (2.4- to 4.0-m), 9- to 14-foot (2.7- to 4.3-m) and 10- to 15-foot (3.0- to 4.6-m) models
• Widths up to 16 feet (4.9 m) are available by special order. Each model allows you to pave at any width between the minimum and maximum size
• Can also be customized for other brands worldwide
• It easily replaces standard boxes, connecting to the frame of the micro surfacing paver like other spreader boxes 
• Connects to the paver’s hydraulic system and adjusts by using the levers located on the handrails of the box
• The hydraulically driven ribbon augers are fully expandable, and feature a 12-inch pitch. Both the primary and secondary strike-offs feature a patented design that allows them to slide within a guide tube when the box expands or contracts while paving, and inboard runners provide clean longitudinal joints