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Pressure Washers

Commercial pressure washers deliver 2,000 to 4,000+ PSI to remove grease, grime, and surface contaminants from concrete, equipment, and vehicles — far beyond what consumer units produce. Electric models handle indoor and covered areas where exhaust ventilation is limited; gas-powered units go anywhere without electrical access. Browse Mi-T-M commercial and industrial pressure washers sized for contractors and facility maintenance teams.

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Original price $15,356.00 - Original price $15,356.00
Original price
$15,356.00
$15,356.00 - $15,356.00
Current price $15,356.00

Mi-T-M HS-3506-1MGK Hot Water Pressure Washer – 3500 PSI, 5.6 GPM

Mi-T-M
In stock

Mi-T-M HS-3506-1MGK Hot Water Pressure Washer – 3500 PSI, 5.6 GPM The Mi-T-M HS-3506-1MGK delivers 3500 PSI at 5.6 GPM — the highest flow rate in t...

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Original price $15,356.00 - Original price $15,356.00
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$15,356.00
$15,356.00 - $15,356.00
Current price $15,356.00
Original price $11,406.00 - Original price $11,406.00
Original price
$11,406.00
$11,406.00 - $11,406.00
Current price $11,406.00

Mi-T-M HS-4004-0MGH Hot Water Pressure Washer – 4000 PSI, Honda GX390

Mi-T-M
In stock

Mi-T-M HS-4004-0MGH Hot Water Pressure Washer – 4000 PSI, Honda GX390 The Mi-T-M HS-4004-0MGH delivers 4000 PSI at 3.7 GPM with a 389cc Honda GX390...

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Original price $11,406.00 - Original price $11,406.00
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Current price $11,406.00
Original price $10,941.00 - Original price $10,941.00
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Current price $10,941.00

Mi-T-M HS-4004-0MGV Hot Water Pressure Washer – 4000 PSI, 3.7 GPM

Mi-T-M
In stock

Mi-T-M HS-4004-0MGV Hot Water Pressure Washer – 4000 PSI, Vanguard The Mi-T-M HS-4004-0MGV is a skid-mounted hot water pressure washer delivering 4...

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Original price $10,941.00 - Original price $10,941.00
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Current price $10,941.00
Original price $15,861.00 - Original price $15,861.00
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$15,861.00 - $15,861.00
Current price $15,861.00

Mi-T-M HS-4004-1MAH Hot Water Pressure Washer – 4000 PSI, 4.0 GPM

Mi-T-M
In stock

Mi-T-M HS-4004-1MAH Hot Water Pressure Washer – 4000 PSI, Honda GX630 The Mi-T-M HS-4004-1MAH delivers 4000 PSI at 4.0 GPM, powered by a 688cc Hond...

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Original price $15,861.00 - Original price $15,861.00
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$15,861.00
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Current price $15,861.00
Original price $14,850.00 - Original price $14,850.00
Original price
$14,850.00
$14,850.00 - $14,850.00
Current price $14,850.00

Mi-T-M HS-4004-1MAK Hot Water Pressure Washer – 4000 PSI, 4.0 GPM

Mi-T-M
In stock

Mi-T-M HS-4004-1MAK Hot Water Pressure Washer – 4000 PSI, 4.0 GPM The Mi-T-M HS-4004-1MAK is a skid-mounted hot water pressure washer rated at 4000...

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Original price $14,850.00 - Original price $14,850.00
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Current price $14,850.00
Original price $17,714.00 - Original price $17,714.00
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$17,714.00 - $17,714.00
Current price $17,714.00

Mi-T-M HMT-4004-0MGH Hot Water Mini Trailer – 4000 PSI, Honda GX390

Mi-T-M
In stock

Mi-T-M HMT-4004-0MGH Hot Water Mini Trailer – 4000 PSI, Honda GX390 The Mi-T-M HMT-4004-0MGH is a DOT-approved hot water mini trailer producing 400...

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Original price $17,714.00 - Original price $17,714.00
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$17,714.00
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Current price $17,714.00
Original price $17,450.00 - Original price $17,450.00
Original price
$17,450.00
$17,450.00 - $17,450.00
Current price $17,450.00

Mi-T-M HMT-4004-0MGV Hot Water Mini Trailer – 4000 PSI, 3.7 GPM

Mi-T-M
In stock

Mi-T-M HMT-4004-0MGV Hot Water Mini Trailer – 4000 PSI, 3.7 GPM The Mi-T-M HMT-4004-0MGV is a trailer-mounted hot water pressure washer rated at 40...

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Original price $17,450.00 - Original price $17,450.00
Original price
$17,450.00
$17,450.00 - $17,450.00
Current price $17,450.00

Commercial Pressure Washers for Heavy-Duty Cleaning Operations

PSI and GPM: Why Both Specs Determine Cleaning Performance

Pressure washers are rated by two specs that work together: PSI (pounds per square inch) measures force and GPM (gallons per minute) measures flow volume. PSI breaks the bond between contaminant and surface; GPM carries the loosened material away. A high-PSI unit with low GPM works slowly because it cannot flush debris efficiently; a high-GPM unit with low PSI moves water but lacks the pressure to dislodge embedded grease or carbonized soil. Cleaning units (CU = PSI × GPM) is the composite metric that accounts for both — a 3,000 PSI / 4 GPM machine produces 12,000 CU and outcleans a 4,000 PSI / 2 GPM machine at 8,000 CU on most commercial tasks. OSHA's pressure washing safety guidelines note that high-pressure water injection injuries are among the most serious risks in pressure washing operations — specifying appropriate tip size and nozzle angle for each surface type is a safety requirement, not just a performance consideration.

Electric vs Gas: Choosing by Environment and Portability Need

Electric commercial pressure washers produce zero exhaust emissions and operate at consistent pressure throughout the cleaning cycle, making them the correct choice for enclosed parking structures, loading docks with limited ventilation, commercial kitchens, and indoor manufacturing spaces. They require a power source but eliminate fuel handling, carbureted startup issues, and CO exposure risk. Gas pressure washers are fully portable without electrical access and deliver higher GPM at comparable PSI ratings — the standard choice for fleet washing, exterior building cleaning, graffiti removal, and construction site surface preparation where moving the unit across a large site matters more than avoiding emissions. Mi-T-M commercial units in both categories include commercial-grade pump systems rated for duty cycles far beyond consumer machines. The EPA stormwater runoff regulations require that pressure washing wastewater containing detergents or oils be contained and disposed of properly — not directed to storm drains — a compliance point that affects job site setup for any commercial pressure washing operation.

Related: Steam Cleaners · Floor Scrubbers · Commercial Vacuums · Wet-Dry Vacuums

Commercial Pressure Washer Applications by Industry

Fleet washing operations use 3,000–4,000 PSI hot water units to degrease engine bays, frame rails, and wheel wells on heavy trucks — cold water at lower pressure does not emulsify gear oil and diesel residue effectively enough for fleet maintenance intervals. Concrete surface preparation before sealing or coating requires aggressive surface cleaning to open pores and remove laitance; 3,000+ PSI with a rotary surface cleaner attachment is the standard approach for parking decks, loading docks, and exterior slabs. Restaurant exterior cleaning — grease traps, dumpster pads, drive-through lanes — is a recurring contract service where 2,000–3,000 PSI electric units handle the work without the noise and exhaust of gas equipment in commercial districts. Graffiti removal from masonry and concrete typically requires hot water units at 3,500+ PSI combined with appropriate cleaning agents for paint type and substrate. Contractor-grade Mi-T-M frames, pumps, and engines are warranted for commercial duty cycles rather than the intermittent residential use that consumer pressure washer warranties are written around.

Frequently Asked Questions

What PSI do I need for commercial pressure washing?
Light-duty tasks (vehicles, patios): 1,300-2,000 PSI. Medium-duty (decks, driveways, building exteriors): 2,000-3,000 PSI. Heavy-duty industrial (graffiti removal, equipment cleaning): 3,000-4,000+ PSI. Higher PSI requires proper training to avoid surface damage.
What's the difference between hot and cold water pressure washers?
Hot water pressure washers (up to 200°F) break down grease, oil, and organic matter much faster than cold water, reducing cleaning time by 40-50%. They're essential for food service, automotive, and industrial applications. Cold water models cost less and work well for general dirt and debris removal.
Gas vs electric pressure washers: which is better?
Electric pressure washers are quieter, require less maintenance, and produce no emissions, making them ideal for indoor or noise-restricted areas. Gas-powered models offer higher PSI, mobility without electrical outlets, and better performance for heavy-duty outdoor commercial applications.
What GPM (gallons per minute) should I look for?
GPM is as important as PSI for cleaning efficiency. Commercial applications typically need 3-5 GPM. Higher GPM rinses away debris faster and covers more area. The cleaning power formula is PSI × GPM = Cleaning Units (CU). A 3,000 PSI / 4 GPM unit provides 12,000 CU of cleaning power.
How often should pressure washer pumps be serviced?
For commercial units with regular use, check pump oil every 50 hours and change it every 3 months or 250 hours. Inspect high-pressure hoses and fittings monthly for wear. Use pump antifreeze for winter storage. Professional-grade pumps typically last 1,500-2,000 hours with proper maintenance.

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