The ALPHATM DXM is a truck-mounted attenuator for use on stationary or moving shadow support vehicles. It is tested to MASH 2016 Test Level 2. The unit is comprised of a crushable aluminum body with a Durashell® nose. The ALPHATMDXM is designed to help absorb rear-end impacts at speeds up to 45 mph (70 km/h) when impacted within MASH 2016 crash test standards.

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  • Durashell® nose may regain its original shape after low-speed nuisance hits.*
  • Tapered nose designed to help minimize corner damage and streamline appearance.
  • Cab control hydraulics allow cartridge to be raised by driver.
  • Hydraulic system tilts to 90° position for storage and transport.


*After an impact, the product must be inspected and evaluated per the direction of the specifying roadway authority. The ultimate decision on reusability rests with the specifying roadway authority and/or state DOT.

Assembly & Maintenance

  • Optional receiver hitch helps facilitate TMA mounting.
  • Jacks help facilitate removal and storage.


  • System:
    • 1,160 lbs. (526 kg)
    • 12,200 lbs. (5,534 kg) Minimum
      Support Vehicle Weight


  • Cartridge only:
    • 8′ 4″ (254 cm) Long
    •  7′ 9″ (236 cm) Wide
    •  1′ 10″ (57 cm) High

Product Images

Product Documents

PI Sheet



ALPHATM DXM Product Manual