Langley De-Air Machine - Automatic Agg Gravity


$ 1,525.00 
Item #: RHA:605

Langley Device - Agg Gravity 

The Rainhart Langley DeAir Aggregate ™Specific Gravity Device is an automatic device allowing lab technicians to conduct apparent specific gravity testing with the press of a button. Once started the Langley precisely roll and agitate the flask at an optimum angle to remove all air bubbles from the flask. Eliminating operator error and saving 15-30 minutes of manually shaking and turning of the flask. By quickly and accurately providing apparent specific gravity results lab technicians can confidently determine the absorption of the fine aggregates.


  • Meets ASTM C128-93 & AASHTO T84 standards
  • Produces repeatable results in less than 15 minutes
  • Safe, quiet & easy-to-use operation
  • Eliminates operator errors and inconsistent results
  • Removes operator judgment calls
  • Large LCD digital timer
  • Specialized motor for prolonged cycle use
  • Compact bench top design
  • Requires GL-4050 - 500mL flask


  • Shipping weight: 6.4lbs
  • Dimensions: Approximately 9”W X 10.5”D X 6.5”H
  • Motor:  115vac / 60 hz
  • 220vac / 50 hz
  • RHA: 605
  • Download Spec Sheet HERE

Automate and increase the repeatability and accuracy of your test with Langley.