Nohtal Partansky’s Sorting Robotics equipment is used by some of the biggest names in the cannabis industry, from Stiiizy to Tilray. Now he’s gearing up for when Big Tobacco is ready to roll.

Inside the Los Angeles headquarters of Stiiizy, Americas largest cannabis brand by sales, a robotic machine takes ten pre-rolled joints in its arm, dips them into a vessel of THC concentrate and then…