The Super Max™ 12885 is one of Daimer's most powerful, gasoline powered tri-mode pressure washers. Boasting a pressure level of 3500 psi, flow rate of 5 GPM, and advanced 18 HP gasoline engine, the 12885 can handle some of the most demanding commercial and industrial pressure washing applications.
For added versatility, the Super Max™ 12885 can be used in different temperature modes and with different heating sources. Temperature options include: hot water, cold water, and steam. Heating options include: no. 1 or no. 2 heating oil, diesel, or kerosene.
Though ideal for outdoor applications, as the 12885 does not require use in proximity to an electrical supply, this pressure washer can also be used indoors by placing the unit outdoors or in an exhaust-friendly location and using long pressure hoses to reach the desired application. Daimer's Long Hose Technology ensures maximum power is utilized even with pressure hoses 300 feet in length.
The 12885 gas pressure washer uses a Heavy-Duty 120 Volt A.C. Burner Powered by a Belt Driven Closed Loop A.C. Generator. Other companies offering lower quality gas pressure washers use inexpensive 12 Volt DC Oil Burners, which exhibit a spark intensity reduction when the battery is less than 100%. Over time, this reduction creates a buildup of carbon and soot on the electrodes, fuel nozzle, combustion chamber and heat exchanger coil, all of which further impairs combustion efficiency.
Batteries do not always run at 100% charge! Frequent engine starts and periods of down time will keep most batteries at less than full charge, and 12 volt oil burners are prone to failure! Daimer's burners and components for all of our hot and steam pressure washers are the best in the industry that allow Super Max™ pressure washer machines to last up to and beyond 20 years.
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.
Warranty1 year (limited)Water Pump Warranty5 years (limited)Motor/Engine Warranty2 years (limited)
cold, hot, wet steam
up to 330ºF
Hot Water Temp.
180ºF - 210ºF
Standard Power Method
Optional Power Methods
heavy duty 18.0 HP gasoline engine
Minimum Generator Size
Gasoline/Diesel Fuel Capacity
9 gallon tank
electronic direct spark
no.1 or no. 2 heating oil; diesel; or kerosene
Heating Fuel Capacity
Heater Exchange Coil
heavy duty schedule 80 heating coil
Heater Response Time
converts cold water to hot water in approximately 30 seconds
Pump Drive Method
yes, high pressure injection
durable 3' trigger wand with quick disconnect
0º (blast), 15º, 25º, 40º, steam nozzles
50' high pressure steam hose
Pressure Hose Options
additional/customizable lengths available
41"w. x 57"d. x 58"h.
stainless steel and powder-coated, high gloss, chip/chemical resistant