VoltagePrice Call to order
230V, three phase, 60Hz$14,279.00 1-800-471-7157

The Super Max™ 15900 is the most powerful, stationary pressure washer among the 15000 AST® models, with a pressure of 3000 psi and flow rate of 5 GPM. This stationary, tri-mode electric pressure washer machine features Daimer's exclusive AST® (Automatic Shutoff Technology®) and can function independently as a cold water, hot water, or steam pressure washer with temperatures up to 330°F. This robust model is ideal in applications benefiting from versatile two gun operation capabilities.

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The Super Max™ 15900 AST® is the most powerful pressure washer in the 15000 AST® series. Featuring Daimer's exclusive, one-of-a-kind AST® (Automatic Shutoff Technology®), this stationary, tri-mode electric pressure washer enables users to get full functionality out of their pressure washer machines for years to come. AST® Technology reduces the wear and tear on the parts and other components, thus extending the life of this robust pressure washer machine.

Powered by an ultra-powerful 10 HP NEMA engine, this robust stationary pressure washer machine provides extreme pressure of 3000 psi and flow rate of 5 GPM. The 15900 AST® features the same heating options and additional options as other models in the 15000 AST® series, including optional two gun operation. With all of these features and more, the Super Max® 15900 AST® is the ideal solution for industrial/commercial applications requiring the addition of a permanent tri-mode pressure washer system with high power for a wide variety of demanding cleaning applications, including metallic powder coating.

What is AST® Technology?

AST® is a proprietary system that works as follows: When AST® is engaged, it shuts off the pump and motor after 30 seconds if the gun is not in use and water is not flowing through the system. When the pressure washer operator pulls the trigger again, the motor and pump go on. This feature is particularly useful for applications in which the pressure washer operator is using a long hose, say more than 25 feet, and it is not practical for them to go back and forth to the machine to turn it off during every break.

The pumps and motors in conventional electric pressure washers remain active whether or not water is flowing through the system. As a result the user has to keep walking back to the system to shut it off or risk damaging the motor and pump.

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)
Pressure3000 psi
Flow Rate5 GPM
Temp. Optionscold, hot, wet steam
Steam Temp.up to 330ºF
Hot Water Temp.180ºF - 210ºF
Standard Power Methodelectric: 220V-240V, three phase, 60 Hz
Optional Power Methods(call for pricing) 220V-240V three phase, 50 or 60 Hz; & 440V, three phase, 50 or 60 Hz
Motor Sizeheavy duty 10.0 HP - NEMA
Minimum Generator SizeN/A
Gasoline/Diesel Fuel CapacityN/A
Ignition Systemelectronic direct spark
Power Cords1
Heating Methodnatural gas (requires natural gas line); or propane (customer provides vapor withdrawal cylinder) OPTIONAL natural gas or propane (OPTIONAL no.1 or no. 2 heating oil; diesel or kerosene - CALL FOR PRICING)
Heating Fuel Capacity9 gallons for OPTIONAL (heating oil, kerosene, or diesel)
Heater Exchange Coilheavy duty schedule 80 heating coil
Heater Response Timeconverts cold water to hot water in approximately 30 seconds
Operating Timecontinuous use
Pump Drive Methoddirect drive
Chemical Infusionyes, high pressure injection
Wand Includeddurable 3' trigger wand with quick disconnect
Nozzles Standard0º (blast), 15º, 25º, 40º, steam nozzles
Pressure Hose50' high pressure steam hose
Pressure Hose Optionsadditional/customizable lengths available
Dimensions52"w. x 23"d. x 50"h.
Weight1120 lbs
Housingpowder-coated steel, high gloss, chip/chemical resistant
Colorred and white
Phosphatizing SystemN/A- see Super Max 15900 AF
Acid/Phosphate Chemical FeedN/A
Trailer MountN/A
Multi-Gun Operationoptional - call for pricing
Wall MountN/A
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
Steam Nozzle (not shown) 1
50' High Pressure Steam Hose (not shown) 1



Tri-Mode Power Wash Systems for Versatile Cleaning Action

Cold water-based or non-heated versions of industrial pressure washers are widely used to manage a host of cleaning operations. However, to deal with extremely challenging tasks, such as industrial degreasing, it is essential to bring in hot water pressure washers. Hot water and steam are unmatched when it comes to dissolving tough deposits of grease and oil. If your industrial applications demand the use of both cold water and hot water, then it will be a good idea to purchase tri-mode commercial pressure washers.

The Super Max™ 15900 AST®, available from Daimer®, is a high-powered pressure washing equipment designed to cater to the varying needs of cleaning professionals in industrial settings. Featuring stationary configurations, these tri-mode gas pressure washers are capable of functioning as a steam, cold water and hot water pressure washer. Powered by a super-powerful 10 HP NEMA engine, these electric pressure washers generate flow rates of 5 gpm and pressure levels of 3000 psi. This electric-powered, hot water pressure washer can be heated by diesel, kerosene, natural gas, or propane.

The optional two-gun operation of the Super Max™ 15900 AST® enhances its efficiency and user productivity. Perhaps, the most outstanding feature of these electric pressure washers is the auto shutting off feature. If the user decides to take a break and the trigger gun remains inactive for over 30 seconds, then this unique technology senses the absence of water flow in the pressure washing equipment and automatically shuts off the motor and pump. This prevents the risk of overheating and damage to components.

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