Nomad™ Asphalt Plants

Portable, Durable, Reliable

Intended for portability, durability, and reliability, Nomad plants meet the demands of a variety of small, medium and large projects that require quality hot mix asphalt. Nomad plants are designed and built in the U.S.A. with proven results around the globe. You can depend on your Nomad plant to produce high-quality hot mix asphalt for years to come with a minimum of upkeep.

Features & Benefits

  • Available in three sizes, designed for maximum production capacities of 80, 130, or 175 tons per hour (72, 118, or 159 MTPH).
  • Nomad plants are offered in various configurations, from the standard plant, with two split bins and a wet scrubber, to the expanded plant with baghouse and a silo.
  • Compact design.
  • Proven reliability and production capabilities.

    Standard Plant

    The standard plant configuration includes portable drum mix unit (with integral aggregate system, drum mix unit, knock-out box and wet scrubber), drag conveyor with hopper, and control house.
     
    Side elevation illustration of the Astec Nomad Standard portable asphalt plant

    The Standard Nomad is the most compact design.

    • The Astec Nomad comes standard with a two-pump asphalt meter
      Standard equipment includes a special two-pump asphalt meter for high precision and accuracy.
    • The Astec Nomad portable asphalt plant comes withtwo split cold feed bins to feed up to four sizes
      Two divided 2.44 x 3.04 meter (8 x 10 ft) cold-feed bins feed up to four sizes of aggregate.
    • The Astec Nomad portable asphalt plant features the largest knock-out box in its class
      Nomad features the largest knock-out box in its class, returning more fines to your mix.
    • The knock-out box continually feeds fines with the internal auger
      An internal auger in the knock-out box continually feeds captured fines to the mix.
    • The drag chain features an integral hopper that serves as a surge bin
      The drag conveyor features an integral hopper that serves as a surge bin for loadout.
    • Each aggregate bin has separate compartments with independently-adjustable feed gates
      Each compartment of each aggregate bin has its own independently-adjustable feed gate.
    • The Astec Nomad drum is equipped with heavy-duty flights for proper veiling
      Heavy-duty flights inside the Nomad drum properly veil aggregate through the burner flame.
    • The Astec Nomad portable asphalt plant comes with durable trunnions and drum tires
      Nomad uses stronger, more durable trunnions and drum tires than other plants in its class.
    • Precise control of aggregate size & feed rates are accomplished with adjustable discharge gates and veriable-frequency drives
      Adjustable discharge gates and feed belts with variable-frequency drives (VFDs) allow precise control of aggregate size & feed rates.
    • Aggregate is fed into the drum dryer by a slinger conveyor mounted just below the burner
      A slinger conveyor mounted just below the burner feeds aggregate into the drum dryer.
    • The drum turns on four adjustable belt-driven trunnions and kept in position by idlers
      Idlers keep the drum in position as it turns on four adjustable, belt-driven trunnions.

    Split Plant

    A variation of the standard plant, split into two loads.
    The Astec Nomad Split portable asphalt plant
     
    Side elevation illustration of the Astec Nomad Split Plant

    A detachable aggregate system (2 or 3 bins) delivers maximum portability.

    • A two-pump asphalt meter for high precision and accuracy comes standard on The Astec Nomad split portable asphalt plant
      Standard equipment includes a special two-pump asphalt meter for high precision and accuracy.
    • For maximum portability, the aggregate system can be detached as an option
      Optionally, the aggregate system can be made as a detachable unit for maximum portability.
    • The aggregate system is shown as optionally detached from the drum mix unit
      Drum mix unit shown with optionally detachable aggregate system removed.
    • The Nomad comes with the largest knock-ot box in its class
      Nomad features the largest knock-out box in its class, returning more fines to your mix.
    • Fines are feed by an internal auger in the knock-out box
      An internal auger in the knock-out box continually feeds captured fines to the mix.
    • An itegral hopper on the drag conveyor serves as a surge bin
      The drag conveyor features an integral hopper that serves as a surge bin for loadout.
    • Independently-adjustable feed gates are located on each compartment of the aggregate bins
      Each compartment of each aggregate bin has its own independently-adjustable feed gate.
    • The Astec Nomad drum is equipped with heavy-duty flights for proper veiling of the aggregate
      Heavy-duty flights inside the Nomad drum properly veil aggregate through the burner flame.
    • Stronger and more durable trunnions and drum tires are equipped on the Astec Nomad portable asphalt plants
      Nomad uses stronger, more durable trunnions and drum tires than other plants in its class.
    • Rrecise control of aggregate size & feed rates are accomplished by adjustable discharge gates and variable-frequency drives
      Adjustable discharge gates and feed belts with variable-frequency drives (VFDs) allow precise control of aggregate size & feed rates.
    • Aggregate is fed into drum dryaer by a slinger conveyor mounted just below the burner
      A slinger conveyor mounted just below the burner feeds aggregate into the drum dryer.
    • The drum is kept in position on its four adjustable belt-driven trunions by idlers
      Idlers keep the drum in position as it turns on four adjustable, belt-driven trunnions.

    Expanded Plant

    The expanded plant configuration includes independant aggregate system, scalping screen, parallel-flow dryer, baghouse, twin-shaft coater, drag conveyor, and single or multiple surge bins or storage silos.
    The Astec Nomad Expanded portable asphalt plant
     
    Side elevation illustration of the Astec Nomad Extended portable asphalt plant

    The larger capacity Nomad expanded plant features an independent aggregate system, a baghouse and a storage silo.

    • A special two-pump asphalt meter for high precision and accuracy comes standard on an Astec Nomad portable asphalt plant
      Standard equipment includes a special two-pump asphalt meter for high precision and accuracy.
    • Independently-adjustable feed gates are loacted on each compartment of each aggregate bin
      Each compartment of each aggregate bin has its own independently-adjustable feed gate.
    • Aggregate is properly veiled by heavy-duty flights in the drum mixer
      Heavy-duty flights inside the Nomad drum properly veil aggregate through the burner flame.
    • Stronger and more durable trunnions and drum tires are available on the Astec Nomad portable asphalt plant
      Nomad uses stronger, more durable trunnions and drum tires than other plants in its class.
    • The cold-feed bins include an integral collecting conveyor that is retractable for easy transport
      2.44 x 3.66 meter (8 x 12 ft) cold-feed bins include integral collecting conveyor that is retractable for easy transport. 3 or 4 bin units available.
    • Precise control of aggregate size & feed rates are achieved by adjustable discharge gates and variable-frequency drives
      Adjustable discharge gates and feed belts with variable-frequency drives (VFDs) allow precise control of aggregate size & feed rates.
    • Oversized material from the aggregate is removed by a scalping screen
      The scalping screen removes and discharges any oversized material from the aggregate.
    • Aggregate is fed into the drum dryer by a slinger conveyor mounted just below the burner
      A slinger conveyor mounted just below the burner feeds aggregate into the drum dryer.
    • The drum in positioned as it turns on four adjustable, belt-driven trunnions by idlers
      Idlers keep the drum in position as it turns on four adjustable, belt-driven trunnions.
    • captured baghouse fines are returned to the twin-shaft coater for mixing by an auger
      An auger returns captured baghouse fines to the twin-shaft coater for mixing.
    • The twin-shaft coater mixes aggregate fines and liquid asphalt cement
      Mixing of aggregate, fines and liquid asphalt cement (AC) occurs in the twin-shaft coater.
    • The finished mix is discharged into plant's drag conveyor for loading
      Finished mix is discharged into the base of the plant's drag conveyor.

    The Nomad Baghouse

    The Nomad expanded plant features a baghouse that is mounted on its own portable chassis.
    • The Nomad baghouse includes air compressor, caged ladder and handrails.

      Ships complete

      The Nomad baghouse ships complete with air compressor, internal collecting auger and caged ladder and handrails. The lower section of the baghouse forms a hopper for the collection of fines.

    • An air compressor, caged ladder and handrails are included with the baghouse
      The inertial separator is mounted on the baghouse inlet.

      Inertial Separator

      An inertial separator removes the majority of dust from the exhaust gas stream prior to the filter bags. Remaining dust and small particulate adheres to filter bags that are suspended internally from the baghouse roof.

    • Fines are carried out of the baghouse via an internal collecting auger
      An internal collecting auger at the base of the hopper carries fines out of the baghouse.

      Air Flow

      Powerful bursts of air are injected into the filter bags to make the dust break away and fall into the hopper below. The collecting auger that runs the full length of the hopper carries this dust (or fines) out of the baghouse.

    • A dedicated auger captures baghouse fines
      This dedicated auger returns fines to the mix.

      Baghouse Fines

      Fines collected in the baghouse are returned to the plant's twin shaft coater by a dedicated auger.

    • The internal auger drive motors are accessible from gthe ground
      Drive motor for the internal auger is accessible from the ground. Two augers are available.

      Easy Access Maintenance

      Access panels at the top of the baghouse allow easy changing of filter bags. The baghouse also has multiple access doors for internal inspection and maintenance.

    Nomad Surge Bin

    Each Nomad surge bin includes its own drag conveyor with batcher.
    • The Astec Nomad surge bin
      The Nomad surge bin includes a drag conveyor and batcher.

      Surge Bin

      The surge bin is available in either 45 or 90 metric ton capacity (50 or 100 ton). Each surge bins includes its own drag conveyor with batcher. The drag conveyor features a full-length stairway with platform around the batcher.

    • A chrome-carbide steel liner in the drag conveyor offers superior durability
      Drag conveyor features a chrome-carbide steel liner for superior durability.

      Drag Conveyor Chain and Liners

      The drag conveyor is built to last. It features a chrome-carbide steel liner for durability and a heavy-duty drag chain.

    • Maintenance is easy with segmented bolt-on sprockets
      Segmented, bolt-on sprockets allow for easy maintenance.

      Drag Conveyor Sprockets

      The Nomad drag chain has segmented sprockets for easy maintenance. The conveyor discharge opening is set back from the head sprocket so that the mix is fully discharged from each flight. This eliminates carry-over of residues that can cause excess wear of the head sprocket and chain.

    • Over-filling of the surge bin is prevented by low-level and high-level switches
      Low-level and high-level switches prevent over-filling of the surge bin.

      Access Panels

      Access panels are provided along the top of the conveyor and on the batcher for internal inspection and maintenance. Low-level and high-level switches inside the surge bin prevent over-filling.

    • Truck scales and load-out printing systems are available for multiple silos
      Multiple silos and truck scales are available.

      Available Options

      Multiple silos, truck scales and load-out printing systems are available.

    Nomad Controls

    All plant controls are mounted on a centralized panel inside the control house. All of the plant's motors and switches are pre-wired and factory tested. Quick-plug connectors aid in rapid plant setup.
    • A standard control house for the Astec Nomad portable asphalt plant
      Standard control house.

      Control House

      The air-conditioned control house is trailer-mounted for easy portability. It also includes heating, lights, internal power outlets and a sliding ticket window.

    • Control houses have mutiple option to meet your requirements
      Numerous options for larger control houses are available to meet your requirements.

      Controls

      Controls include three temperature controllers, burner management controller, and PLC (programmable logic controller) for control of mixing. An emergency plant shutdown control enables the operator to shut down the entire plant.

      Motor controls enable the operator to turn off/on power to motors that operate the air compressor, exhaust fan, drum drives, drum mixer burner blower, drag conveyor, slinger conveyor, fines-return auger and fuel pump. These controls also provide the plant operator with control of mid-stream start/stop.

      Burner Controls enable the operator to:

      • Choose manual or automatic process control
      • Preset mix process temperature
      • Preset the mix temperature limit
      • Preset the stack temperature limit
      • See burner status
      • Reset the flame safeguard controller
      • Turn on burner pilot
      • Turn on burner main flame
      • See status of limits
      • See status of flame failure
      • Silence the burner alarm
    • An available option is a motor control center
      Motor control centers are available options.

      Available Options

      Larger control houses, motor control centers (MCC), etc. are available to meet your specific requirements. In addition to the standard drum burner that is fired on natural gas, optional burners are available that can operate on propane gas, diesel fuel, or heavy fuel and recycled waste oil (with an optional heavy fuel preheater). Low NOx burners and numerous other environmentally pro-active options are also available.

    • Centralized plant controls are located on a control panel
      Plant controls are mounted on a centralized control panel.

      Centralized Controls

      All Nomad plant controls are centralized on a panel located in the climate-controlled control house.