Pre Rolled Cone Filling Machines. The top 5. Let’s dig in together!
Craft cannabis operators keep hitting the same wall in pre-rolls: the cones are ready, the flower is ready, and the line still can’t hit daily numbers without throwing more people at it.
That’s why cone filling machines keep showing up in every serious pre-roll room, from California to Michigan to Ontario.
Pre-rolls keep growing as a category, and a lot of teams feel that pressure first in filling and packing. One industry guide calls pre-rolls the fastest growing category in the U.S., and notes they overtook flower as the top-selling category in Canada in 2023.
This list is for craft cannabis teams that want real output, clean packs, and less rework. Just what matters on the floor.

Quick answer: what’s the best pre-rolled cone filling machine for craft cannabis?
If you want a simpler, lighter-duty step into automation, RollCraft MRB is a strong craft option. It’s listed at 72 or 143 pre-rolls packed in 90 seconds, with 44 ft-lb packing force and low/high power settings.
If you want the most production in the smallest footprint, STM Canna Mini-RocketBox Plus is tough to beat. It’s built to fill 72 cones in about 30–45 seconds per cycle, and it’s commonly listed at up to 6,000 pre-rolls per day depending on workflow.
Now let’s get into the top 5.
How I’m ranking these Pre Rolled Cone Filling Machines for craft cannabis
I’m using the stuff production leads actually care about:
- Cones per cycle and cycle time
- Pack consistency across strains and grind styles
- Operator load and training time
- Changeover pain between SKUs
- How fast it exposes your next bottleneck like closing, labeling, or QA
If you’re running 1–2 shifts, doing frequent strain swaps, and you don’t have an “automation person” on payroll, this is your lane.
1. STM Canna Mini-RocketBox Plus Pre Rolled Cone Filling Machine (best overall for craft teams scaling fast)
This is the machine I point to when a craft brand says, “We need to stop hiring our way out.”
The Mini-RocketBox Plus is commonly described as filling 72 cones in about 30–45 seconds per cycle and reaching up to 6,000 pre-rolls per day, depending on how you stage cones and material.
STM’s own product page also calls out 72 joints in under a minute.
It also gets practical points for cone formats. Listings for the Mini-RocketBox Plus call out tray options for 84mm, 98mm, and 109mm.
Why craft teams like it:
- It’s fast enough that filling stops being the thing that ruins your day.
- You can keep one operator moving without the whole room piling in to “help.”
- When it’s staged right, it turns filling into repeatable cycles instead of constant babysitting.
A real-world picture: you’re in a Colorado prep room at 4:20 pm, and wholesale just pulled forward a drop. You don’t need heroics. You need a machine that hits a cycle, again and again, without drama.
2. RollCraft MRB Pre Rolled Cone Filling Machine (best “first automation step” for craft and light-medium duty)
RollCraft exists for the gap between hand work and full pro systems. Smaller teams. Lighter workloads. Still serious about consistency.
The MRB is listed at 72 or 143 pre-rolls packed in 90 seconds, powered by a 44 ft-lb centrifugal filling system, and it calls out consistent fills across major cone sizes without pre-weighing.
Retail listings also describe low/high power settings, 1–2 minute average pack times, and output around up to 1,250 per hour and up to 10,000 per day depending on workflow.
Why it fits craft cannabis:
- It’s workstation-friendly and simple to train.
- It’s fast enough to cut labor, even if you’re not trying to run MSO volumes.
- It gives you a repeatable fill and pack cycle, which usually drops rework.
A quick honest note: when a team buys an MRB, the next bottleneck often becomes closing. That’s not a bad problem. It’s a “your line is finally moving” problem.
3. Futurola Knockbox Series (best for teams that want simple bulk tray filling)
The Knockbox is one of the most common sights in pre-roll rooms, especially when teams want something proven and familiar.
Futurola’s Knockbox Series is described as filling 50, 100, or 300 cones simultaneously, depending on the base.
A product listing for the smaller Knockbox 3 version calls out 50 pre-rolls in 90 seconds.
Other listings commonly describe the Knockbox 100 at 100 cones in about 2 minutes, with adjustable density control.
Why it makes the craft list:
- The workflow is easy to understand.
- Operators get productive fast.
- It’s a known “step up” from hand packing.
Where it can bite you:
- Material prep matters a lot. Grind and moisture swing your consistency.
- Some teams end up doing more touch-up than they expected, especially on tight cones or sticky material.
Still, for many Massachusetts and California craft rooms, it’s the first tool that turns cone filling into bulk cycles instead of one-cone-at-a-time labor.
4. PreRoll-Er 200 (best for teams that want automated options and tighter weight control)
This one is more “equipment line” than “tabletop vibe,” but it shows up in conversations when craft brands start adding infused SKUs or need tighter control.
PreRoll-Er describes the 200 model at up to 1,300 pre-rolls per hour with a guaranteed tolerance of 0.01g, and notes compatibility with infused cannabis.
Why it’s here:
- The output number is real enough to change staffing math.
- The tolerance claim speaks directly to compliance and batch expectations.
- If your brand lives on “same burn, same weight, every time,” this direction makes sense.
Where craft teams should think twice:
- Automation gets you speed, then demands better upstream prep.
- Your downtime strategy matters. When the machine is the line, the line is the machine.
5. King Kone Version 2 (best for small craft batches and tight footprints)
Some craft producers don’t need “industrial.” They need a solid machine that packs a lot of cones per cycle and keeps the room moving.
King Kone’s product info describes a 169-cone capacity, with standard trays fitting 84mm, 98mm, and 109mm.
Custom Cones USA also describes the King Kone’s motion as a motor-driven up-and-down “bounce” that helps create more even fills.
Why it’s on the list:
- High cones-per-cycle for a compact setup.
- Simple concept, fast operator ramp.
- Good fit for craft brands doing drops, seasonal strains, and frequent changeovers.
If you’re running a smaller room in Oregon or Washington and you’re sick of trays and funnels, this is the kind of machine that stops the daily chaos.
What to buy based on your daily pre-roll target
Here’s an easy way to think about it.
If you’re under 1,000 pre-rolls per day
Look for high cones-per-cycle and low training time. King Kone and Knockbox setups can fit this stage.
If you’re 1,000 to 6,000 per day
Mini-RocketBox Plus starts making a lot of sense because cycle time gets wild compared to manual work.
If you’re growing but staying craft
RollCraft MRB is built as that “first automation step” that cuts labor and cleans up consistency without making your room feel like a factory.
FAQ: Pre-rolled cone filling machines for craft cannabis
What’s a good cycle time for a cone filling machine?
Anything that gets you a full tray packed in under 2 minutes starts changing labor math. Machines like the MRB (90-second cycles) and Mini-RocketBox Plus (often listed at 30–45 seconds for 72 cones) set that pace.
What matters more, cones per cycle or cones per hour?
Cones per hour. Always. Cones per cycle only matters if your cycle is fast and your operator flow stays clean.
Do I need pre-weighing to get consistent pre-rolls?
Some systems specifically claim they can produce consistent packs without pre-weighing, like the RollCraft MRB brochure text.
Even then, your grind, moisture, and sifting still decide how many “touch-up” cones land in your reject bin.
The next step is measuring where your line actually slows down
Pick a target like 2,000 pre-rolls per day. Time your real workflow for one hour. Count rejects. Count touch-ups. Count stoppages.
Then ask one simple question.
If filling and packing stopped being the bottleneck tomorrow, what step would break next, closing, labeling, or QA? Need help identifying the problem on your pre roll line? Give us a call.


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