Automated Cannabis Trimming and Grading Through a T-ZERO and Marvel

Equipment shown: Twister T-ZERO, Marvel (Gen 2), Oracle Controlled Conveyor. Filmed with Growing Exposed at the Twister Technologies facility in British Columbia.

In this video, Justin from Growing Exposed came to Twister headquarters for a demo of the T-ZERO and Marvel. Josh walked him through how the Twister line processes flower from trimming all the way to grading.

What the demo covers

  • 4:07 Why commercial cannabis trimmers work best when the tumbler fill is optimized
  • 4:52 How Oracle holds a steady volume of flower into the tumbler using a laser and camera
  • 7:08 What Marvel shows an operator: three photos per flower, the quality per flower, and the rejection decision
  • 7:39 Six of the many parameters Marvel scores for every flower, all adjustable for any process or strain
  • 8:45 What the results look like after trimming, grading, and sorting

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See it run on your own flower

Tell us about your operation and a rep will get back to you to set up a demo of the T-ZERO and Marvel.

Frequently asked questions

What is automated cannabis trimming and grading?

Automated cannabis trimming and grading is a single post-harvest process in which a machine trims dry flower and then sorts every trimmed flower into quality grades without a person making the call. On a Twister line, the T-ZERO handles the trim at 120 to 200 pounds per hour on dry flower, and Marvel photographs each flower from three angles and routes it into one of three outputs: packaging-ready, touch-up, or smalls.

What does Marvel grade cannabis flower on?

Marvel grades on a set of adjustable parameters. Six of them are shown in this video: crow's feet, leaf number, stem length, leaf length, size, and structural stem. Every parameter is adjustable by strain, so a producer can set a different standard for a dense indoor cultivar than for a looser outdoor one.

Does an AI grader replace a QC team?

No. It changes what the QC team receives. Instead of hand-checking the full run, the team gets roughly 20 to 30 percent of the volume, and every flower in that bin genuinely needs a touch. The remaining flower has already been graded packaging-ready or routed to smalls.