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110-120V, 60HzContact Daimer 1-800-471-7157

The Super Max™ 15400 AST® is a stationary, natural gas, propane or oil heated, electric powered, tri-mode pressure washer featuring Daimer's exclusive AST® (Automatic Shutoff Technology), and capable of functioning independently as a cold water (room temperature), hot water (210°F), or steam (330°F) pressure washer. With a higher flow rate (3 GPM) and lower pressure (700 psi) than the 15200 AST®, the 15400 AST® is ideal for industrial applications requiring a permanent pressure washer at a lower pressure for less robust cleaning.

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The Super Max™ 15400 AST® stationary, natural gas, propane or oil heated, electric powered, industrial tri-mode pressure washer features Daimer's exclusive AST® (Automatic Shutoff Technology). This world's only technology reduces the wear and tear on the pump and other components, thus further extending the life of this elite Daimer pressure washer. Powered by a 1.5 HP NEMA engine and offering the same heating options as the 15200 AST® (no.1 or no. 2 heating oil, diesel, kerosene, natural gas, or propane), this versatile electric pressure washer can function independently as a cold water, hot water, or steam pressure washer.

The Super Max® 15400 AST® provides the same rugged stability as the 15200 AST® pressure washer machine, yet with a higher flow rate (3 GPM) and lower pressure (700 psi). This distinction makes the 15400 AST® ideal for industrial/commercial facilities requiring the addition of a permanent pressure washer system, yet with a need for lower pressure for less robust cleaning. This dynamic stationary pressure washer machine can also be purchased with the versatile two gun operation.

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)
Pressure700 psi
Flow Rate3 GPM
Temp. Optionscold, hot, wet steam
Steam Temp.up to 330ºF
Hot Water Temp.180ºF - 210ºF
Standard Power Methodelectric: 110V-120V, single phase, 60 Hz
Optional Power Methods(call for pricing) 110V-120V, single phase, 50 Hz; 220V-240V, single phase, 50 or 60 Hz; 220V-240V three phase, 50 or 60 Hz; & 440V, three phase, 50 or 60 Hz
Motor Sizeheavy duty 1.5 HP - NEMA
Minimum Generator SizeN/A
Gasoline/Diesel Fuel CapacityN/A
Ignition Systemelectronic direct spark
Power Cords1
Heating Methodno.1 or no. 2 heating oil; diesel; kerosene; natural gas (requires natural gas line); or propane (customer provides vapor withdrawal cylinder)
Heating Fuel Capacity9 gallons (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 Hose25' high pressure steam hose
Pressure Hose Optionsadditional/customizable lengths available
Dimensions52"w. x 23"d. x 50"h.
Weight950 lbs
Housingpowder-coated steel, high gloss, chip/chemical resistant
Colorred and white
Phosphatizing SystemN/A- see Super Max 15400 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



Power Cleaner Machines with Mid-Range Pressure Levels

Gas pressure washers required in industrial settings will depend on the applications to be tackled. While less robust maintenance applications call for industrial pressure washers with moderate pressure levels, the more challenging jobs demand hot pressure washers with high pressure levels.

If your cleaning needs are not exceptionally demanding, then electric pressure washers, such as the Super Max™ 15400 AST®, will be a good choice. This electric pressure washer is heated by natural gas, propane or oil and powered by a 1.5 HP NEMA engine. The tri-mode functions enable it to generate cold water, steam at temperatures as high as 330ºF and hot water at temperatures of up to 210ºF. This versatile hot power cleaner machine also comes with an optional double-gun operation for enhanced user efficiency.

The Super Max™ 15400 AST® features flow rates of 3 gpm and pressure levels of 700 psi. You can use this pressure washer machine in combination with cleaning chemicals by using its high pressure chemical injection function. One notable aspect of this pressure washer machine is the auto shut off feature. When the trigger gun is not in use, the system detects the absence of water flow and automatically shuts down the motor and pump to prevent overheating of components. The technology goes a long way in extending the life of pressure cleaner systems.

Electric pressure washers, such as the Super Max™15400 AST®, are ideal for those commercial and industrial applications that require the use of stationary steam pressure washers yet do not need extremely high pressure levels.

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