Universal Penetrometers

Universal Penetrometers test a wide variety of materials by penetration of weighted needles or cones and are all compliant with ASTM and AASHTO standards when fitted with proper needle or cone. Main applications are for bituminous materials, but these versatile instruments also work for waxes, greases, foods, and pharmaceuticals. Gilson offers heavy-duty units for manual and automatic use and lighter, portable models for field work or users with a limited work load or budget.


Manual Universal Penetrometer
Model: HM-320
Automatic Universal Penetrometers
Models: HM-322, HM-322F, HM-322D, HM-322DF
  • Manual Universal Penetrometer is a basic, cost-effective model featuring rugged construction for accurate sensitive measurements and an indicator dial with instant zero reset.
  • Automatic Universal Penetrometer is the same as the manual model but uses a button release mechanism with digital timer to automatically stop the plunger when the preset time expires.
  • Light Duty Penetrometer is a smaller version of the HM-320 Manual Penetrometer but is smaller and easy to disassemble.