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 18,000 lb lift capacity, 14 mph sweeping speed and 65 mph travel speed. 2025 EPA/CARB certified.
High side dump hopper dumps directly into a dump truck (126 inch dump height)
Cummins ISB 6.7L 280 HP turbocharged diesel, 2025 EPA/CARB certified
5.2 cubic yard hopper vs. 4.5 yd³ competitors, 18,000 lb lift capacity
280-gallon water tank with dual diaphragm pumps, two spray modes
14 mph sweeping speed, 65 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 65 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 18,000 lb hopper lift capacity is 50% more than the standard M4, because HSD routes pick up heavier material and dump into trucks with high side walls. 14 mph sweeping speed is roughly 30% faster than conventional sweepers, so a contractor behind a milling crew keeps pace without holding up the job. 2025 EPA/CARB certification means you're buying a sweeper that meets the next emissions standard, not today's. 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
2026 Global Environmental Products M4 Mechanical Sweeper
Clear a full traffic lane in one pass with a 2,300 mm (90 in) working width • Run longer between dumps with a 355 L (12.5 ft³) dirt collection hopper
2026 Global Environmental Products M3 Mechanical Three-Wheel Sweeper
Get a 2026 three-wheel mechanical sweeper with only 12 miles and 3 chassis hours on the clock • Run tight curb lines and cul-de-sacs with a three-wheel chassis built for maneuverability
2024 Global Environmental Products M4HSD Mechanical Sweeper
Clear full traffic lane in one pass with 2,300 mm working width and dual brushes • Low downtime between loads: 1.1 m³ hopper and 355 L dirt collection capacity handle extended runs
2020 Global Environmental Products R3 Regenerative Air Sweeper
Long route runtime from a 5.8 cubic yard stainless steel hopper and 230 gallon water tank • Tight-yard maneuverability with a 12.5 foot turning radius and high-dump hopper
2018 Global Environmental Products R3 Regenerative Air Sweeper
Cover a full traffic lane in one pass with a 2,000 mm sweeping width, expandable to 2,500 mm • Keep dust down with a low-pressure water spray system feeding the 280 L fresh water tank
2016 Global Environmental Products M3 Mechanical Sweeper (Used)
Move more debris per shift with a high-dump hopper that unloads directly into a tandem • Keep operators productive on long routes with a factory A/C cab
2016 Global Environmental Products V6 Vacuum Sweeper
Capture fine dust and wet debris with a true pure-vacuum system, not a broom-and-conveyor design • Sweep curb lines from either side using dual steering and dual gutter brooms with simultaneous operation
2013 Global Environmental Products M3 Mechanical Sweeper (Used)
Pick up coarse debris mechanical brooms handle better than air sweepers: gravel, millings, sand, wet leaves • Inspect and drive the unit in Fort Wayne, IN before you commit
2017 Global Environmental Products R3 Regenerative Air Sweeper
Capture fine particulate that mechanical brooms miss, helping with fine particulate that programs like MS4 ask sweepers to capture • Get balanced wear with 744 chassis hours and 727 auxiliary engine hours, the aux number being the true wear indicator on the sweeping system
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 65 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 18,000 lb hopper lift capacity is 50% more than the standard M4, because HSD routes pick up heavier material and dump into trucks with high side walls. 14 mph sweeping speed is roughly 30% faster than conventional sweepers, so a contractor behind a milling crew keeps pace without holding up the job. 2025 EPA/CARB certification means you're buying a sweeper that meets the next emissions standard, not today's. 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.
Related Global Environmental Products
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M4
Full-size four-wheel purpose-built mechanical street sweeper with a 5.6 cubic yard hopper, Cummins ISB 6.7L 280 HP diesel, and 18.5-foot turning radius. Heavy sweep package and 12,000 lb lift capacity handle road millings, sand, gravel, and leaves.
M4 Hybrid
The world's first purpose-built electric hybrid street sweeper. Cummins ISB-200 6.7L diesel paired with electric drive motors and lithium-ion batteries delivers over 50% fuel-economy improvement and reduced emissions and noise, with 60 mph travel speed and 5.6 cubic yard hopper.
Interested in the M4 HSD?
Our Global Environmental specialists can answer your questions, provide pricing, or schedule a hands-on demo.