Plastic Limit Roller

The Plastic Limit Roller from Stuart Hunt and Associates in Mississauga, Ontario, Canada, delivers repeatable results for plastic limit testing of cohesive soils per ASTM D4318, AASHTO T90, and TX DOT 105-E standards. This mechanical device features rigid acrylic top and bottom plates with 0.125" side rails, plus an integral handle for smooth operation—place soil on adhesive-backed absorbent paper (50-sheet pad included) and roll until rails stop the process. Ensures consistent, fiber-free testing without manual variation.