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
