VoltagePrice Call to order
440V, three phase, 60Hz$7,598.00 1-800-471-7157

The Super Max™ 8790 is the most powerful portable cold water pressure washer in Daimer's 8700 series. The Super Max™ 8790 offers a higher flow rate (5 GPM) and pressure level (5000 psi) than the Super Max™ 8780 while offering the same optional features. This unit is ideal for applications requiring a powerful and portable cold water pressure washer with a high flow rate and pressure.It can also accept hot water up to 180°F for added cleaning power.

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pressure washer, pressure washers

The Super Max™ 8790 is the most powerful electric cold pressure washer in Daimer's 8700 series. Powered by a 20 H.P. electric motor, the Super Max™ 8790 offers a flow rate of 5 GPM at a pressure of 5000 psi. This portable electric cold pressure washer is ideal for applications that require a portable unit that can handle the most difficult pressure washing tasks. Optional features, such as two gun operation and a wet sandblasting system, allow this unit to be customized for a variety of applications. This unit is ideal for those applications that would benefit from the high power and optional features available, but that do not require the additional cleaning

Daimer offers pressure washers in a variety of power configurations for worldwide requirements. The following are available: 110-120V, 208V, 220-240V, 380V, 415V, 440-480V, and 575V; single and three phase; 50 or 60 Hz. Please contact us for pricing.

Product Specifications

Warranty1 year (limited)Water Pump Warranty5 years (limited)Motor/Engine Warranty2 years (limited)
Pressure5000 psi
Flow Rate5 GPM
Temp. Optionscold water
Steam Temp.N/A
Hot Water Temp.Optional support up to 180°F. Call for more information.
Standard Power Methodelectric: 440V, three phase, 60 Hz
Optional Power Methods(call for pricing) 220V-240V, three phase, 50 Hz; & 440V, three phase, 50 or 60 Hz
Motor Sizeheavy duty 20.0 HP - NEMA
Minimum Generator SizeContact Daimer
Gasoline/Diesel Fuel CapacityN/A
Ignition SystemN/A
Power Cords1
Heating MethodN/A
Heating Fuel CapacityN/A
Heater Exchange CoilN/A
Heater Response TimeN/A
Operating Timecontinuous use
Pump Drive Methoddirect drive
Chemical Infusionyes - low pressure injection
Wand Includeddurable 3' trigger wand with quick disconnect
Nozzles Standard0º (blast), 15º, 25º, 40º
Pressure Hose25' high pressure hydraulic hose
Pressure Hose Optionsadditional/customizable lengths available
Dimensions36"w. x 48"d. x 43"h. w/o handle
Weight385 lbs
Housingpowder-coated steel, high gloss, chip/chemical resistant
Phosphatizing SystemN/A
Acid/Phosphate Chemical FeedN/A
Trailer Mountyes - when wheels are removed
Multi-Gun Operationoptional - call for pricing
Wall Mountyes - when wheels are removed
Wet Sandblasting Systemoptional - call for pricing

Parts List


Standard Parts / Quantity

3' Durable Trigger Wand with Quick Disconnect 1
0º (Blast) Nozzle (not shown) 1
15º Nozzle (not shown) 1
25º Nozzle (not shown) 1
40º Nozzle (not shown) 1
25' High Pressure Hydraulic Hose (not shown) 1


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Use High Pressure Machines For Tough Cleaning Jobs

Maintenance professionals have long known that traditional cleaning techniques lack the power needed to efficiently manage the challenging cleaning applications in industrial and commercial environments. For this reason, these professionals are always on the lookout for newer and more improved versions of industrial pressure washers that will help them complete the cleaning tasks faster and with lesser effort. To cater to this growing demand for high-grade hard surface cleaners, suppliers around the world keep on launching newer and more powerful commercial pressure washers.

Basically, cleaning experts generally pay attention to the flow rates and pressure levels of pressure washers before actually purchasing a pressure washer. This is because the flow rates and pressure levels are reliable indicators of the actual cleaning power of a hard surface cleaner. In other words, the cleaning efficiency of hard surface cleaners increases with the flow rates and pressure levels. This is the reason why most cleaning professionals choose high pressure washers for use in industrial environments.

Daimer® offers you the Super Max™ 8790, a powerful, cold pressure washer featuring pressure levels of 5000 psi and flow rates of 5 gpm. The electric-powered, hard surface cleaner driven by a 20 HP NEMA engine comes with optional features, such as a wet sandblasting system and two gun operation. It can also accept inlet hot water temperatures up to 180°F. It comes with a durable 3' trigger wand that can be disconnected easily, when not required, and a 25' high pressure hydraulic hose.

These commercial grade power washers have been designed to manage many challenging applications that do not need the additional cleaning power of steam or hot water. The heavy-duty, stainless steel housing adds to the durable nature of these industrial pressure washers.

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