SPH-4 Hot Box
8-12 weeks. Contact us for current availability.
4-ton asphalt hot box for crews that already have dump capability but need to keep material at working temperature all day. Oil-jacketed heating prevents degradation.
4-ton capacity
Oil-jacketed heating, consistent temperature
Material stays workable all day
Propane or diesel burner options
Insulated body reduces fuel consumption
Auto temperature controls
Road departments that already have dump capability but need to keep asphalt at working temperature throughout the day. If your crew loads hot mix in the morning and it's cold and unworkable by afternoon, this hot box solves that problem.
Keeping hot mix at working temperature for full-day patching
Material storage for crews that load at a remote asphalt plant
Maintaining asphalt quality during long hauls to distant job sites
Pre-heating reclaimed asphalt for patching operations
Oil-jacketed heating maintains consistent temperature throughout the 4-ton load, no hot spots on the bottom and cold material on top like direct-flame designs create. The insulated body reduces fuel consumption, and auto temperature controls maintain the set point without operator adjustment. Load it in the morning, and the material stays workable until your crew uses it all.
Departments losing material quality in unheated dump trucks, or crews using direct-flame hot boxes that burn asphalt on contact surfaces and produce inconsistent temperatures.
If you also need dump-style discharge into potholes, the SPHD-4.0 combines heating and dumping in one unit. The SPH-4 is for crews that already have a way to place material and just need to keep it hot.
Frequently Asked Questions
Who is the SPH-4 Hot Box best suited for?
Road departments that already have dump capability but need to keep asphalt at working temperature throughout the day. If your crew loads hot mix in the morning and it's cold and unworkable by afternoon, this hot box solves that problem.
What are the main applications for the SPH-4 Hot Box?
The SPH-4 Hot Box is ideal for: Keeping hot mix at working temperature for full-day patching; Material storage for crews that load at a remote asphalt plant; Maintaining asphalt quality during long hauls to distant job sites; Pre-heating reclaimed asphalt for patching operations.
What sets the SPH-4 Hot Box apart from other hot boxes?
Oil-jacketed heating maintains consistent temperature throughout the 4-ton load, no hot spots on the bottom and cold material on top like direct-flame designs create. The insulated body reduces fuel consumption, and auto temperature controls maintain the set point without operator adjustment. Load it in the morning, and the material stays workable until your crew uses it all.
When should I consider a different model instead of the SPH-4 Hot Box?
If you also need dump-style discharge into potholes, the SPHD-4.0 combines heating and dumping in one unit. The SPH-4 is for crews that already have a way to place material and just need to keep it hot.
What is the typical upgrade path from the SPH-4 Hot Box?
Departments losing material quality in unheated dump trucks, or crews using direct-flame hot boxes that burn asphalt on contact surfaces and produce inconsistent temperatures.
Interested in the SPH-4 Hot Box?
Our Stepp Mfg specialists can answer your questions, provide pricing, or schedule a hands-on demo.