Miller STN


  • Rock solid reliability

    Miller, one of the most respected names in commercial application, is proud to offer you the toughest off-road floater chassis available. By using top-of-the-line components and leading-edge designs, the rock solid Miller Atlas 3654 can handle the most rigorous field conditions. The Atlas is rated for up to 2000 gallon liquid systems, or you can equip it with either a 13' or 14' dry spinner box depending on the Atlas wheelbase option.


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Drive Train

The Atlas off-road chassis feature an unbeatable team of drive line components with legendary performance

• A 365 Cummins QSL 8.9L diesel engine supplies the power with great fuel economy and excellent cold weather starting. The cooling package features a single pass design to optimize air flow and more efficient cooling.

• Smooth, trouble-free transfer of power from an Allison 6-speed automatic “close ratio” transmission with two shift schedules, a simple push-button shift control, and a transmission oil cooler.

• The Atlas puts the power to the ground with a double reduction Axletech axle with outboard planetary hubs and 2-speed axle ratio.


You’ll find the perfect speed for every condition and situation.  High and low ranges provide an efficient working speeds from 6.1 to 29.7 mph at full throttle.

Air Braking System

You’ll enjoy excellent stopping power with 4-wheel air brakes. The two frame rails create a huge air reservoir.

Frame & Front Axle

The Miller Atlas has evolved from a rock solid legacy of high strength off-road chassis building. High strength steel, 4-walled tubular frame rails with tubular and channel cross members are built to handle the load of a 2000 gallon tank filled with 32% liquid nitrogen.

The front axle is an EATON wide-track with a 6" diameter tube and minimum 18,000 lb. load rating, along with twin hydraulic steering cylinders. The wheel bearings are low maintenance Stemco sealed oil-bath bearings.

The Atlas 3654 is auto-steer capable.

Atlas Cab and Controls

The command center is a center-mounted Deluxe 90 Series cab for exceptional visibility and control. You’ll appreciate the easy access steps and platform with a walkway to the engine area. It features a large door for easy entry and a comfortable high back Air-Ride seat with an ergonomically designed control panel arm rest. Commonly used controls are built into the armrest and float with the seat. An instructional seat is included.

This state-of-the-art cab is pressurized and charcoal filtered with a standard equipment engine & transmission monitor, heat and air conditioning, a tilt/telescoping steering column, AM-FM radio with weather band and CD player, as well as an HID light option. The cab is well cushioned on account of the air-ride suspension with leveling valve.

Precision Options

The Atlas can be equipped with the latest precision control consoles from Raven, including the Envizio Pro and Viper Pro field computers.

Raven speed sensors, light bars, and SmarTrax assisted steering systems are also available, along with single bin and MultApplier bin kits.


  • Cummins QSL 365 HP diesel engine with power bulge to 375 HP; Tier III emission standards
    Dual element air filter with pre-cleaner
    Manifold pre-heater & block heater
    160 amp alternator
    Two 12 volt heavy duty batteries
    Vertical exhaust pipe
    130 gal fuel tank
  • Engine mounted water-cooled air compressor – 13.2 cu ft
    Dual large capacity in-frame air tanks
    Air dryer
    Air brakes
  • Allison RDS3000 6 - speed automatic with two shift schedules
    Shift schedule #1 1st thru 4th gear
    Shift schedule #2 1st thru 6th gear
    Transmission oil cooler
  • Axletech, PRC 674, double reduction with outboard planetary hubs
    Gear ratio: low range - 19.62, high range - 14.07
    Rated @ 37,000 lbs  
  • EATON Wide-Track with a 6 in diameter tube and 18,000 lb load rating
    Stemco sealed oil-bath bearings
    Dual steering cylinders
    Auto steer adaptable
  • Air activated
    Rear - 16.5 X 5" with 36 cu in air chambers