140°F Water Bath, Stainless Steel - 8.3 Gallon

This 8.3-gallon stainless-steel water bath is designed for controlled temperature conditioning of asphalt mixture specimens before laboratory testing. Digital temperature regulation and variable-speed magnetic stirring work together to maintain more even bath conditions around the samples. A gas-assisted hinged lid keeps the cover attached during loading and directs condensation back into the tank, helping reduce drips and bench clutter. The perforated support shelf, external drain and replaceable heating element are practical features for laboratories that condition specimens throughout the day.

Key Features

• Supports specimen conditioning associated with AASHTO T 245, AASHTO T 283, AASHTO R 68, ASTM D5581 and ASTM D6927 when the specific procedure's temperature and timing requirements are followed.
• Uses variable-speed magnetic circulation to promote even water temperature around the specimens rather than relying on passive heating alone.
• Provides digital temperature control with selectable Fahrenheit or Celsius display for easier setup across different laboratory procedures.
• Keeps the hinged lid safely supported with a gas shock while allowing condensate to return to the tank, reducing the need to set a wet cover on the bench.
• Elevates specimens on a perforated shelf to improve circulation around the samples and reduce direct contact with the heated tank bottom.
• Includes an external drain and a field-replaceable heating element that can simplify cleaning and service without sending the entire bath away.

Lab Manager's Tip

Verify that the 120V circuit can support the listed 12–15A load, and confirm bath uniformity with a calibrated thermometer. For AASHTO T 283 and ASTM D6927, use the conditioning temperature, specimen arrangement and time specified by the actual procedure rather than assuming the bath's 140°F label applies to every test.

Typical Applications

Marshall stability specimen conditioning, gyratory specimen conditioning, moisture susceptibility testing, asphalt mixture QC and DOT asphalt laboratories.

• RH_Operating_Instructions.pdf