
Rosco Asphalt Distributor
Maximizer 2B
Folding-bar Rosco asphalt distributor with triple-overlap fan spray pattern, automatic application-rate control, 400 gpm Viking pump, and Plus+1 CAN Bus controls.
Plan your Maximizer 2B quote
- Share the intended material and application, such as tack coat or chip seal support.
- Include the required spray width and application rate, if known.
- Describe the route and load requirements before selecting a tank.
- Provide the truck model and axle ratings if you plan to supply a chassis.
- List any options to confirm, such as bar extensions, GPS, or heating equipment.
- Include the jobsite city and planned start date.
Overview
Built for the way Texas crews work
The Rosco Maximizer 2B is a truck-mounted asphalt distributor with a 12 ft fully circulating folding spray bar. The bar has two 4 ft center sections and two 2 ft hydraulic folding wings.
Automatic application-rate control uses the Plus+1 CAN Bus system and a 7 in color display. The distributor includes a 400 gpm Viking pump, a triple-overlap fan spray pattern, and Enviro-flush cleanout.
Rosco lists maximum tank capacities from 990 to 5,313 gal. Thermal expansion, material density, and truck or axle ratings can limit the recommended load. Closner can help confirm the tank, chassis, and options for your work.

12 ft fully circulating folding spray bar.
Triple-overlap fan spray pattern.
Automatic application-rate control.
Plus+1 CAN Bus system with 7 in color display.
400 gpm Viking positive displacement pump.
990 to 5,313 gal maximum tank capacity; confirm the usable load for the selected build.

Key Specs
- Tank capacity
- 990 to 5,313 gal maximum; usable load depends on the build
- Spray bar
- 12 ft fully circulating folding spray bar
- Spray pattern
- Triple-overlap fan spray pattern
- Pump
- 400 gpm Viking positive displacement pump
- Controls
- Plus+1 CAN Bus with automatic application-rate control
- Display
- 7 in color display
Field Details
See the machine at work
Close-up photos and jobsite views show how the machine is built, configured, serviced, and used beyond the spec sheet.

Folding spray-bar layout
The Maximizer 2B pairs automatic application-rate control with a fully circulating folding spray bar.

Confirm the truck build
Length, width, height, and weight depend on the truck and selected options. Confirm the complete package when you request a quote.

Plan the application
Share the material and application for your municipal or county route. Closner can help review the tank, spray bar, and chassis requirements.
Videos
Maximizer 2B Video Library
Manufacturer videos and training content for understanding the machine, its setup, and the systems crews rely on in the field.
Rosco Maximizer 2B Distributor
Manufacturer video overview of the Rosco Maximizer 2B distributor.
Technical Specifications
Maximizer 2B Spec Details
Specifications below are pulled from manufacturer materials and Closner product research. Final build details can change by chassis, configuration, and option package.
Distributor System
- Spray bar
- 12 ft fully circulating folding spray bar
- Bar sections
- Two 4 ft center sections and two 2 ft hydraulic folding wings
- Bar shift
- 18 in each way
- Nozzle spacing
- 4 in centers; spray-width configuration in 4 in increments
- Operating sections
- 1 ft increments
- Spray pattern
- Triple-overlap fan spray pattern
- Pump
- 400 gpm Viking positive displacement asphalt pump
- Rate control
- Automatic application-rate control
Controls And Capacity
- Control system
- Plus+1 CAN Bus
- Display
- 7 in color display
- Cleanout
- Enviro-flush system
- Tank capacity
- 990 to 5,313 gal maximum; usable load depends on thermal expansion, material density, and truck or axle ratings
- Ground-speed sensor
- Radar standard; GPS optional
- Dimensions and weight
- Depend on the truck and selected options
Features
Maximizer 2B advantages

12 ft folding spray bar
Two 4 ft center sections and two 2 ft hydraulic folding wings form the standard bar. The bar shifts 18 in each way.

Automatic application-rate control
The Plus+1 CAN Bus system provides automatic application-rate control. The operator uses a 7 in color display.

400 gpm asphalt pump
The Viking positive displacement pump is listed at 400 gpm for the 2B distributor system.

Triple-overlap spray pattern
The bar uses a triple-overlap fan spray pattern with nozzles on 4 in centers. The controls operate spray sections in 1 ft increments.
Gallery
Maximizer 2B Photos
Factory model photos and system views for a closer look at the machine.
FAQ
Common Maximizer 2B Questions
How wide is the Rosco Maximizer 2B spray bar?
The standard bar is 12 ft wide. It has two 4 ft center sections and two 2 ft hydraulic folding wings. The bar shifts 18 in each way. Rosco lists optional extensions; confirm the complete bar package before ordering.
What tank capacity does the Rosco Maximizer 2B offer?
Rosco lists maximum tank capacities from 990 to 5,313 gal. Thermal expansion, material density, and truck or axle ratings can limit the recommended load. Confirm the tank and usable load for the selected chassis.
What are the Rosco Maximizer 2B dimensions and weight?
Length, width, height, and weight depend on the truck and selected options. Share your chassis details with Closner to confirm the dimensions and load requirements for the complete build.
Does the Rosco Maximizer 2B use radar or GPS?
Rosco lists a radar horn ground-speed sensor as standard equipment. GPS is an option in place of radar. Confirm the sensor with the selected build.
More Rosco Models
Asphalt Distributor
Maximizer 3B
Truck-mounted Rosco asphalt distributor with an 8 to 16 ft extending spray bar, automatic application-rate control, and a 400 gpm Viking pump.
View Model →Asphalt Distributor
Maximizer 4B
High-output Rosco distributor with 24 ft fully circulating folding/extending spray bar, 560 gpm Viking pump, automatic application-rate control, and 2,050 to 5,313 gal tank range.
View Model →Maintenance Distributor
PR900
Dual-tank Rosco maintenance distributor with independent 600 gal front and 300 gal rear tanks, front and rear spray bars, Plus+1 controls, and route-support options.
View Model →Available inventory
Available Rosco Maximizer 2B Inventory
Live Closner listings that match Rosco Maximizer 2B. If the exact unit is not listed today, Closner can still check incoming machines, rentals, and factory availability.
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Prefer to call? 210-732-2131