VoltageHeating FuelPrice Call to order
N/A - Gas EnginePropaneContact Daimer 1-800-471-7157

The Super Max™ 12500 GE AF is a gas powered, propane heated pressure washer that offers the same functionality, power, and versatility of the 12300 AF with the added mobility of an 18 HP gasoline engine for use in outdoor applications where electric supply is not readily available. With a flow rate of 5 GPM, pressure level of 3000 psi, and temperatures able to reach as high as 180°F, the 12500 GE AF ensures a job well done.

Included with the 12500 GE AF is Daimer's phosphatizing system for the pre-treating of metal surfaces, further adding to capabilities of this powerful pressure washer machine. The 12500 GE AF can be purchased with an optional two gun operation or wet sandblasting system.

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The Super Max12500 GE AF is a commercial industrial gas powered, propane heated pressure washer that offers the same functionality and versatility as the 12300 AF. However, unlike the 12300 AF, the 12500 GE AF operates with an 18 HP gasoline engine. This makes the Super Max 12500 GE AF gas powered pressure washer ideal for outdoor applications for which electric outlets are not available.

Daimer's phosphatizing system comes standard on the 12500 GE AF pressure washer equipment, for the pre-treating of metal surfaces to prevent rust and corrosion and to prepare surfaces for the application of paint primer and powder coating. Daimer's phosphatizing system uses downstream injection which minimizes chemical contact with the high quality stainless steel fittings and parts to protect against corrosive attack. The phosphatizing system uses a stainless steel dual lance wand with a one trigger gun and two tubes, one with a high-pressure nozzle and the other with a low-pressure nozzle. The crossover valve can be opened and closed to control water flow to either nozzle, but not at the same time.

Two gun operation and the mobile configuration with wheels are options available with the 12500 GE AF. Like the Super Max 12300 AF, the 12500 GE AF offers a flow rate of 5 gallons per minute (GPM) at a pressure of 3000 psi and is ideal for more rugged pressure washing needs.

pressure washer, pressure washers

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
Steam Temp.N/A
Hot Water Temp.up to 180ºF
Standard Power Methodgasoline engine
Optional Power MethodsN/A
Motor Sizeheavy duty 18.0 HP gasoline engine
Minimum Generator SizeN/A
Gasoline/Diesel Fuel Capacity9 gallon tank
Ignition Systemelectronic direct spark
Power CordsN/A
Heating Methodpropane
Heating Fuel Capacity50 lb. empty tank included
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 Methodshaft drive
Chemical Infusionyes, high pressure injection
Wand Includeddual lance wand
Nozzles Standard0º (blast), 15º, 25º, 40º nozzles
Pressure Hose50' high pressure hose
Pressure Hose Optionsadditional/customizable lengths available
Dimensions57"w. x 41"d. x 58"h.
Weight1000 lbs
Housingsteel - powder-coated, high gloss, chip/chemical resistant
Colorred and white
Phosphatizing SystemYes
Acid/Phosphate Chemical Feeddownstream stainless steel injector with chemical proportioning adjustment, mounted at the outlet of heating coil
Trailer Mountwheels removed - same price
Multi-Gun Operationoptional - call for pricing
Wall MountN/A
Wet Sandblasting Systemoptional - call for pricing

Parts List


Standard Parts / Quantity

Dual Lance Wand with crossover valve
0º (Blast) Nozzle (not shown)
15º Nozzle (not shown)
25º Nozzle (not shown)
40º Nozzle (not shown)
50' High Pressure Hose (not shown)


Fuel-Powered Pressure Wash Systems for Outdoor Applications

Gas pressure washers certainly score over electric pressure washers in terms of mobility. Since fuel-powered versions do not have to be connected to electrical outlets the way electric versions do, users experience greater mobility and freedom of movement. With fuel-powered pressure washers, there is no issue of tripping over electric cords or the need to reconnect power cords when you need to shift the cleaning process from one spot to another. For this reason, cleaning experts almost always choose fuel-powered pressure washer equipment to maintain vast areas.

If you crave for more mobility than what electric pressure washers offer, it is time to check out the Super Max™ 12500 GE AF available from Daimer®. Powered by an 18.0 HP gasoline engine and heated by propane, the pressure wash system is highly versatile, functional, and mobile. Being fuel-powered, these gas pressure washer machines are great for use in outdoor areas where electrical outlets may not be easily available. To help accomplish the most challenging outdoor maintenance, these industrial pressure washers feature flow rates of 5 gpm and pressure levels of 3000 psi.

Commercial power washers like the Super Max™ 12500 GE AF are especially notable for their superior phosphatizing functions that help pre-treat metal surfaces. Before applying paint or powder coating, metal surfaces must be cleaned and all traces of rust and corrosion should be efficiently eliminated. The downstream injection phosphatizing technique of this gas pressure washer helps eliminate all kinds of heavy deposits from metal surfaces without posing the risk of chemical corrosion.

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