Cannabis Pouch Filling Machines: How They Work and How to Choose One

A cannabis pouch filling machine takes a stack of pre-made bags, opens each one, fills it with a weighed or counted dose, and seals it. One operator loads bags and watches the line. This guide covers how the machines work, what speed to expect, and how to pick one.

How a pouch filling machine works

Almost every cannabis brand uses pre-made pouches: printed mylar bags, usually stand-up, usually with a child-resistant zipper. The machine does five things in order.

1. Picks a bag from the magazine.
2. Opens it with suction cups and a puff of air. A gusset opening station opens the bottom of stand-up pouches so product drops all the way in.
3. Fills it from whatever sits above the bagger. For flower that is a multihead weigher. For gummies it is a weigher or a counter.
4. Seals it with heated seal bars above the zipper.
5. Discharges it onto a conveyor for labeling, checkweighing and case packing.

Every zipper pouch has to arrive with the zipper already open. No pouch machine opens a zipper for you, so ask your bag supplier for pre-opened zippers before you order bags.

The filler matters as much as the bagger

The bagger only handles the bag. Weight accuracy comes from the filler. Flower sold by weight needs a scale that is legal for trade, which in most states means NTEP certified. The NTEP EliteWeigh multihead weigher is built for flower and is accurate to 0.02 g. The standard EliteWeigh handles gummies and snacks at 0.1 g and also runs count-by-weight programs. If you sell by piece count, the EliteCount counter counts gummies, tablets and capsules with infrared sensors.

What speed to expect

Speeds on cannabis are lower than the food speeds you see in most brochures. Flower is light, sticky and uneven, and every bag has to hit weight. These are real cannabis numbers for LeafyPack machines.

• EcoBagger MINI: up to 18 bags a minute. Bags 70 to 180 mm wide.
• RotoBagger: 20 to 30 bags a minute on flower, 25 to 35 on edibles.
• RotoDuplex: 35 to 50 on flower, 50 to 70 on edibles. It fills two bags at once.
• EcoVape: 35 to 50 small pouches a minute for vape cartridges and single gummies.

How to choose

1. Start with units per shift

Take your busiest day and divide by the minutes you actually run. A line doing 6,000 eighths in a 6 hour run needs about 17 bags a minute. That is a MINI. At 10,000 or more a shift, look at a RotoBagger.

2. Check your bag sizes

Bag width decides which machine you can use. The RotoBagger 1900 takes bags 90 to 190 mm wide. The RotoBagger 2100 takes 100 to 210 mm wide. If you run tiny bags for carts or single gummies, you need the EcoVape, which runs 60 to 100 mm pouches.

3. Count your changeovers

If you switch between an eighth, a quarter and an ounce in the same day, changeover time is lost production. Servo changeover with saved recipes lets the operator pick the bag on the touchscreen instead of adjusting the machine by hand.

4. Check power and air before you sign

Pouch machines need compressed air and 220 V power. A RotoBagger needs three phase power and at least 20 CFM of air at 90 PSI. Small shops often have neither. See our guide to power and air requirements before you plan the room.

5. Plan what comes after the bagger

A fast bagger with hand labeling behind it is still a slow line. A pouch labeler and a checkweigher after the bagger keep the whole line at the same pace.

Lead time and financing

LeafyPack baggers ship 16 to 18 weeks after the order. Financing is available through NEC Financial.

Talk to someone who runs these machines

Tell us your product, your bag and how many units you need per shift. We will tell you which machine fits and what it takes to install it. Contact LeafyPack or call +1 (657) 267-0059.