Rosco Asphalt Distributor
Maximizer 3B
Closner's most popular Rosco distributor conversation: a truck-mounted asphalt distributor with fully circulating extending spray bar, automatic application-rate control, 400 gpm Viking pump, and 990 to 5,313 gal tank range.
Overview
Built for the way Texas crews work
The Rosco Maximizer 3B is the distributor Closner most often talks about with Texas road-maintenance and chip-seal customers. It sits in the sweet spot of the lineup: more production-minded than the smaller folding-bar setup, while still staying practical for county, municipal, and contractor fleets.
The 3B is built around a larger fully circulating extending spray bar, automatic application-rate control, a Plus+1 CAN Bus control system, a 7 inch color display, enviro-flush cleanout, and a 400 gpm Viking positive displacement asphalt pump.
Closner's most popular Rosco distributor model for many Texas applications.
Fully circulating extending spray bar for production distributor work.
Automatic application-rate control with Plus+1 CAN Bus architecture.
7 inch color display for operator feedback and setup.
400 gpm Viking positive displacement asphalt pump.
Tank capacity range listed from 990 to 5,313 gal depending on build.
Key Specs
- Tank capacity
- 990 to 5,313 gal
- Spray bar
- Fully circulating extending spray bar
- Pump
- 400 gpm Viking positive displacement pump
- Controls
- Plus+1 CAN Bus with automatic application-rate control
- Display
- 7 inch color display
- Cleanout
- Enviro-flush system
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.
Road-ready distributor package
Field photos show the truck-mounted package, tank, rear platform, and bar layout that crews work around daily.
Spray-bar visibility
The rear working area keeps the application system visible for setup, service, and daily checks.
Production-focused build
The 3B is sized for fleets that want a serious asphalt distributor for routine road maintenance and seal-coat work.
Videos
Maximizer 3B Video Library
Manufacturer videos and training content for understanding the machine, its setup, and the systems crews rely on in the field.
Rosco Maximizer 3B Distributor
Manufacturer video overview of the Rosco Maximizer 3B asphalt distributor.
Technical Specifications
Maximizer 3B Spec Details
Specifications below are pulled from manufacturer materials and Closner product research. Final build details can change by chassis, configuration, and option package.
Application System
- Spray bar type
- Fully circulating extending spray bar
- Pump
- 400 gpm Viking positive displacement asphalt pump
- Rate control
- Automatic application-rate control
- Control system
- Plus+1 CAN Bus
- Operator display
- 7 inch color display
Tank And Service
- Capacity range
- 990 to 5,313 gal
- Cleanout
- Enviro-flush cleanout system
- Platform
- Truck-mounted asphalt distributor
- Best fit
- Chip seal, seal coat, fog seal, and tack applications
Features
Maximizer 3B advantages
Popular Texas distributor setup
The 3B is the Rosco distributor Closner sees most often for customers who need serious production without stepping all the way into the Max 4B class.
Extending fully circulating spray bar
The fully circulating extending bar is built for cleaner material movement, production width, and consistent distributor application.
Modern electronic control
Plus+1 CAN Bus controls, automatic application-rate control, and a 7 inch display help operators keep the distributor set up consistently.
400 gpm Viking pump
The 400 gpm Viking positive displacement pump is a core part of the 3B asphalt system for distributor work.
Gallery
Maximizer 3B Photos
Factory model photos and system views for a closer look at the machine.
FAQ
Common Maximizer 3B Questions
Who supports the Maximizer 3B in Texas?
Closner Equipment supports Rosco and LeeBoy distributor customers across Texas with sales guidance, rental and purchase planning, OEM parts, service, and application support from our San Antonio, Austin, DFW, and Houston-area teams.
What work is the Maximizer 3B best for?
The Max 3B is a strong fit for chip seal, seal coat, fog seal, tack, county road work, and contractor distributor routes where the crew wants a larger extending-bar distributor without moving into the biggest Max 4B package.
Can Closner help spec the truck, tank, spray bar, and controls?
Yes. Distributor builds depend on route type, material, spray width, chassis, operator preference, and local maintenance workflow. Closner can help compare tank capacity, spray-bar setup, hand-spray needs, cleanout options, and service access before ordering.
More Rosco Models
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.
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.
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