Astec PMIII Controls

Overview

The Complete Solution for HMA Facility Control

PMIII is the next generation of hot mix asphalt controls. Facility operation has never been easier, faster or more accurate than with this new, ‘hard-PLC’ based control. Expandable and retractable to suit your specific needs, PMIII puts the best of our time-tested software, along with new developments, into the most cutting edge industry hardware.

Applications

Asphalt Mixing

A thermal mixing process is required to turn aggregates and liquid AC into an asphalt pavement mix for road construction. This makes an asphalt mixing plant necessary for road construction. The complete line of Astec asphalt mixing plants, and its range of capacities and features, gives you the choices and flexibility to create your optimum solution.
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Features

Package Includes
- Industrial PC
- Console
- Junction box
- Uninterruptible Power Supply (UPS) maintains power on computer after loss of electrical power to enable orderly shutdown of the system
MPIII Blending Controls
- 8 Virgin aggregate VFD bins
- Virgin Aggregate Scale
- 2 recycle bin over 1 recycle belt scale
- 2 mineral filler (volumetric or gravimetric)
- 1 Additive
- 1 Asphalt metering system (temperature compensated)
- Calibration for all scales, pumps and feeders: operator selectable automatic feeder calibration multiple material calibration for bins
- Unlimited mix design stored on hard disk drive
- Material mix design tolerances
- Material mix start/stop timing
- Communicates material inventories and mix formulas with Astec “WM2000” (WM2000 sold separately)
BCIII Burner Controls
- Commands and monitoring of flame safeguard device
- Controls burner position via “burner profiles” with individual settings for:
- Combustion Air
- Controls multiple fuels
- Controls to operator selectable
- Final mix temperature
- Aggregate temperature
- Baghouse inlet temperature
Alarming
- Text message and logging of all system errors
- Audible alerts for key system errors
Baghouse Controls
- Controls pressure drop by automatically adjusting pulse cycle depending on monitored pressure drop
SCIII Silo Controls
- 3 silos over 1 truck scale
- Silo charging
- Level indication
- Inventory indication (when used with Astec WM2000)
- Silo discharge
- Silo cone heat
- Mix storage
- Traverse conveyor(s)
- Drag conveyor(s)
MCIII Motor Controls
- Start/stop controls for each motor
- Handles all interlocking and sequential starting
- Midstream start/stop and Plant E-Stop
- Optional current monitoring