AST 420 Gallon Diesel Powered Spray Rig

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Part Number: 420D

The 420 Diesel is a Favorite Among Busy Contractors Who Need to Keep Up With High Volume, Commercial Spraying.

Financing Available
Minimum Financing is $1000.

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Details and Options
American Spray Tech.
Full Description

The 420 is our BIG DOG. This is the largest trailer mounted rig we make. If you are considering this rig you are probably a large operator spraying 5 or 6 days a week and need to keep up with the demand for your services.

The 420 comes equipped with our new stainless steel pump which includes the butterfly valve.

The 1/4” box tubing frame is beefed up to 2”X 6”. The hitch size is 2-5/16” and is removable with bolts to easily adjust the height to match the tow vehicle.

Like the other Diesels the frame is extended to distribute the towing load better and provide working space or storage on the front tongue. The tank is recessed into the frame resulting in a lower profile making it easier to load dry or box mud into the tank.

Your new machine will have infinite control of mixing speed and pump speed at your finger tips. Mixing is a snap and adjusting your spray pattern will be easy.

* Trailer mounted
* Single tank
* 25HP diesel
* Quincy QT 7.5 compressor
* 125ft hose set
* Pole gun
* Air control pump switch
* Stainless steel tank, lid, hinge and mixing paddles
* Tube frame welded construction, to handle heavy loads
* Electric brakes on all four wheels
* Tandem independent suspension Torsion arm axles
* 15” wheels and bearing buddies
* AST special pole gun with hardened steel tips
* 2L4 high performance pump
* Stainless steel texture strainer
* High performance material hose rated at 3200lb burst
* Easy access oil filters


* Electric pump switch
* Binks gun
* Longer hose set
* Split tank
* Option B - 16” tires, Quincy QT 15 (50 CFM), 33 HP Diesel

Manufacturer: American Spray Tech
Weight: 4260
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