M4 HSD
Contact us for current availability and factory lead times.
High Side Dump version of the M4 for crews dumping directly into dump trucks on heavy-duty routes. Cummins ISB 6.7L 280 HP diesel, 5.2 cubic yard hopper with 12,000 lb hopper load capacity, and 67 mph travel speed. EPA/CARB certified.
High side dump hopper dumps directly into a dump truck (120 inch dump height)
Cummins ISB 6.7L 280 HP turbocharged diesel, EPA/CARB certified
5.2 cubic yard hopper vs. 4.5 yd³ competitors, 12,000 lb hopper load capacity
280-gallon water tank with dual diaphragm pumps, two spray modes
5–11 mph sweeping speed, 67 mph travel speed via smooth hydrostatic drive
3 tons per minute sweep rate with patent-pending load-leveling device
18.5-foot turning radius despite high-dump configuration
47-inch gutterbrooms and 11-flight elevator with replaceable corded rubber tips
See the M4 HSD at work
DOT contractors, private sweeping operations, and municipalities running heavy-debris routes where dumping into a dump truck on-site eliminates the trip back to the transfer station. The M4 HSD is built for the toughest conditions, road millings, heavy sand, chip seal, where a standard low-dump sweeper loses a full hour per cycle driving to and from the dump site.
Road milling cleanup behind paving crews (dump directly into the haul truck)
Chip seal and sand sweeping for state DOTs and private paving contractors
High-speed highway and arterial sweeping where 67 mph transport speed matters
Industrial and port facility sweeping with heavy debris
Large-area parking lot sweeping for private contractors
Post-storm cleanup requiring rapid relocation between sites
The high-side dump design lets HSD routes pick up heavier material and dump into trucks with high side walls. Smooth hydrostatic drive gives infinite speed control so the operator isn't fighting gear shifts on road-mill cleanup.
Paving contractors using standard low-dump sweepers that force a trip to a transfer station after every hopper load, losing an hour of production per cycle. DOT fleets running older sweepers that can't keep up at travel speed, creating a traffic hazard behind the sweep crew.
For city street sweeping without a haul truck on-site, the standard M4 with its 12,000 lb low-dump hopper costs less and handles the same cleaning job. For zero-emission routes or electrification mandates, the M4EV provides the same 18.5-foot turning radius and 5.6 yd³ hopper on an all-electric drivetrain.
M4 HSD For Sale
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Frequently Asked Questions
Who is the M4 HSD best suited for?
DOT contractors, private sweeping operations, and municipalities running heavy-debris routes where dumping into a dump truck on-site eliminates the trip back to the transfer station. The M4 HSD is built for the toughest conditions, road millings, heavy sand, chip seal, where a standard low-dump sweeper loses a full hour per cycle driving to and from the dump site.
What are the main applications for the M4 HSD?
The M4 HSD is ideal for: Road milling cleanup behind paving crews (dump directly into the haul truck); Chip seal and sand sweeping for state DOTs and private paving contractors; High-speed highway and arterial sweeping where 67 mph transport speed matters; Industrial and port facility sweeping with heavy debris; Large-area parking lot sweeping for private contractors; Post-storm cleanup requiring rapid relocation between sites.
What sets the M4 HSD apart from other mechanical street sweepers?
The high-side dump design lets HSD routes pick up heavier material and dump into trucks with high side walls. Smooth hydrostatic drive gives infinite speed control so the operator isn't fighting gear shifts on road-mill cleanup.
When should I consider a different model instead of the M4 HSD?
For city street sweeping without a haul truck on-site, the standard M4 with its 12,000 lb low-dump hopper costs less and handles the same cleaning job. For zero-emission routes or electrification mandates, the M4EV provides the same 18.5-foot turning radius and 5.6 yd³ hopper on an all-electric drivetrain.
What is the typical upgrade path from the M4 HSD?
Paving contractors using standard low-dump sweepers that force a trip to a transfer station after every hopper load, losing an hour of production per cycle. DOT fleets running older sweepers that can't keep up at travel speed, creating a traffic hazard behind the sweep crew.
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Interested in the M4 HSD?
Our Global Environmental specialists can answer your questions, provide pricing, or schedule a hands-on demo.