Demco Side Dump Truck Boxes

OVERVIEW

The Demco Side Dump Truck Boxes provide a versatile side-dump solution designed for operations that require controlled unloading, compact access, and flexible mounting options. Engineered to deliver dependable side dump performance in a wide range of applications, these truck-mount side dump boxes extend the proven functionality of Demco side dump trailers to truck and tractor chassis platforms.

Designed for adaptability, the Demco Truck Mount Box Kit offers side dump capabilities for many different situations, making it suitable for construction, agriculture, road maintenance, and general material handling operations. The shorter box length allows operators to access smaller areas and tighter job sites where full-length trailers may not be practical. This compact footprint supports improved maneuverability while maintaining effective load handling performance.

Despite its shorter size, the Demco Side Dump Truck Box is engineered to deliver large capacity per foot, maximizing payload efficiency within a compact design. The rounded vee dump body promotes smooth material flow during unloading, allowing operators to move larger loads while supporting quicker and cleaner discharge. This design helps reduce material buildup inside the box and supports consistent unloading behavior across a wide range of bulk materials.

One of the key advantages of the Demco Side Dump Truck Boxes is their flexible mounting capability. These fully functional side dump boxes can be mounted to either a tractor chassis or a truck chassis, allowing operators to configure equipment based on their specific operational needs. This flexibility makes the side dump truck box a practical option for fleets that require adaptable equipment solutions without investing in multiple specialized units.

For standard tractor applications, the system features bolt-on subframes that allow for over-5th-wheel mounting, enabling multiple uses with the same frame. This modular design supports efficient equipment utilization by allowing operators to switch between applications while maintaining a consistent chassis setup. The ability to use the same frame for different configurations helps streamline operations and reduce overall equipment complexity.

Structural durability is a defining characteristic of the Demco Side Dump Truck Boxes. The incorporation of FlexCorner® design technology helps eliminate corner cracking, a common issue in dump body construction. By allowing controlled flex at critical stress points, the FlexCorner® system improves structural longevity while maintaining overall strength. This design approach supports repeated use in demanding environments without compromising reliability.

The large G-rail tub support system further enhances the strength-to-weight balance of the dump body. Compared to traditional two-rail systems, the single G-rail design is lighter and stronger, providing robust support while reducing unnecessary weight. This optimized structure contributes to efficient hauling performance and supports long-term durability under repeated loading and dumping cycles.

The dump body and materials used in Demco Side Dump Truck Boxes are built with the same proven reliability found in Demco Side Dump Trailers. This consistency in design and manufacturing ensures dependable performance across Demco’s side dump product lineup. Operators benefit from familiar operation, predictable unloading behavior, and durable construction that aligns with established Demco standards.

Controlled side dumping is a core advantage of the truck box design. By allowing material to be discharged to either side, the box supports efficient unloading in confined or linear work areas such as roadways, job sites, and material stockpiles. Side dumping helps maintain stability during unloading and reduces the need for extreme dump angles, supporting safe and efficient material handling.

The Demco Side Dump Truck Boxes are well suited for operations that require compact access, flexible mounting, and efficient unloading. Contractors benefit from their ability to navigate tight job sites, while agricultural operators value the capacity efficiency and adaptable mounting options. Municipal and infrastructure applications also benefit from the controlled unloading and maneuverability offered by the side dump box design.

Overall, the Demco Side Dump Truck Boxes deliver a versatile, durable side dump solution built for flexibility, capacity efficiency, and long-term reliability. With compact dimensions, rounded vee dump body design, modular mounting options, and reinforced structural components, these truck-mount side dump boxes provide a dependable option for professional material handling operations that demand adaptability without sacrificing performance.

FEATURES & BENEFITS

• AR450 Steel with trademarked FlexCorner® Design
  
• Large single G-rail on tub - lighter and stronger than two rail systems
• Bolt-on sub frame fits over 5th wheel
• Integrated tub pivot points with greaseless pivot bearings
• Tub dump direction controlled from two places on the left side -no need to walk all around the truck box to change dump direction
• 20 second dump at 33 GPM flow
• Tub dump direction indicators visible in truck mirrors
• Hydraulic system: 3000 psi rated ¾” hoses, fittings, flow divider, and relief valve
• Twin 3000 psi rated 5” X 36” cylinders
• Standard LED lights in enclosed boxes with sealed plugs
• Standard Colors: black, white, yellow, and burgundy (custom colors available)
• Optional Roll Rite electric tarp
• Truck box kits: 14’, 15’,16’,17’, 20’
• One year warranty

With all these features, the Demco Side Dump Truck Boxes deliver a dependable solution for compact material hauling and controlled unloading in applications where access, flexibility, and efficiency matter.

Explore more Material Handling Equipment in our collection today.

BENEFITS

✔ Side dump design supports controlled unloading in tight job sites
✔ Compact box length allows access to smaller and confined areas
✔ Rounded vee dump body supports efficient material flow and clean-out
✔ High capacity per foot supports efficient material hauling
✔ Mountable on truck or tractor chassis for flexible use
✔ Bolt-on subframe supports over-5th-wheel mounting on tractors
✔ FlexCorner® design helps reduce corner stress and cracking
✔ Built with proven Demco side dump durability

SPECIFICATIONS

SHIPPING & SUPPORT

This product ships directly from Demco Products U.S. manufacturing facility. Typical lead time is approximately 5–7 business days before shipment.

Need assistance selecting the right trailer size or available options?
Contact our team at support@grainhog.com or call (888) 464-4880 — we’re happy to help.

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