RollCraft MRB Pre-Roll Filling Machine
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Trusted by the top 20 U.S. cannabis brands | Powered by STM Canna technology | Made in the U.S.A.
Stop Hand-Packing. Start Scaling.
Fill and Pack up to 10,000 pre-rolls a day with 1-2 operators fast & efficiently.
Price: $3500
Entry-level cannabis pre-roll machine. Not a $150K commitment.
3-4x Faster VS. KnockBox
Built from aluminum and steel and not plastic, not only is the MRB faster than the Knockbox but also no pre-weighing is necessary.
Made in U.S.A. By STM
Designed and manufactured in Spokane Valley, WA, USA for over 10 years. Powered by STM Canna’s pre-roll technology.
🚀 Pre-Roll Filling Machine · Powered BY STM
The Pre-Roll Filling Machine Built for Growing Cannabis Brands
Affordable pre-roll cone filling machine backed with STM-backed reliability.
Fill up to 10,000 pre-rolls/day. One operator. $3,500. Powered by STM Canna.
Hand-Packing Pre-Rolls Is Costing You More Than You Think
As demand grows, hand production creates operational pressure. Pre-rolls continue to rank among the top selling cannabis products, but many operations still rely heavily on manual labor.
High Labor costs Kills Margins
3–5 packers = $80K–$160K/yr in wages. And they still can’t keep up.
Inconsistent Weight Variance = Brand Risk
Inconsistent fills fail compliance checks and cost you premium shelf placement.
Enterprise Systems Are Out of Reach
Hefestus and JuanaRoll start at $150K–$250K. Built for MSOs, not craft brands.
The Knockbox Has Hit Its Ceiling
100 cones/2-4 min. Manual. Plastic. It was never built to replace labor.
Clients & Partners
RollCraft trusted by craft producers and established cannabis brands across the U.S.
ROLLCRAFT MRB PRE-ROLL FILLING MACHINE
Professional Pre-Roll Output. Craft-Scale Price
Filling and packing automation built for growing cannabis producers.
3–4× Faster Th44 ft-lb Centrifugal Nitrogen Fill
Precise, repeatable fills on every cycle. No pre-weighing. No manual pull.
Consistent Fills. No Pre-Weighing.
Top Tray & Lift Plate Technology insure accurate fills and weights.
Aluminum & Steel Quality Build
STM-engineered. Built to run in production environments. Not plastic.
Modular. Scale When Ready.
Start with the MRB. Add the ATC closer later – for a complete system.
Head-to-Head
MRB vs Mini RocketBox vs Knockbox 100 vs King Kone
Specs pulled from manufacturer pages. Objective comparison of the four most-searched pre-roll filling machines.
| Feature | ✦ RollCraft MRB | Mini RocketBox+ | Knockbox 100 | King Kone |
|---|---|---|---|---|
| Price | $3,500 | $6,600 | $5,400 | $2,000 |
| Output / Day | Up to 10,000 | Up to 10,000 | Up to 5,000+ | ~5,000–8,000 |
| Fill Method | Centrifugal nitrogen particle lock | Centrifugal nitrogen particle lock | Manual pull-slat, tamp | Vertical bounce, vibration |
| Pre-Weigh Material | Pre-Weigh not necessary | Pre-Weigh not necessary | Yes,required | Yes,required |
| Operators | 1 | 1 | 1 (manual) | 1 |
| Construction | Aluminum + steel, rated components | Stainless steel, rated components | Plastic | Steel and plastic |
| Automated Closer Option | ✓ ATC Bundle | ✓ | Manual device | Manual device |
| One-Tray Workflow | ✓ | ✓ | ✗ | ✗ |
| Made in USA | ✓ | ✓ | ✗ | ✓ |
| Brand Pedigree | STM Canna (10+ yrs) | STM Canna | Futurola | King Kone USA |
* Competitor specs from manufacturer sites. Prices approximate. Results may vary.
f.a.q.
Automated pre-roll filling machine for craft and mid-sized cannabis producers. Centrifugal nitrogen fill. Up to 10,000/day. One operator. $3,500. Made in USA. Powered by STM Canna.
RollCraft is powered by STM Canna’s technology -1B+ pre-rolls filled, 50% of top 20 U.S. brands, 44 states, 14+ countries. Built in Spokane, WA. It is the best option pre-roll machine under $5000.
A full-time hand-packer produces roughly 500–800 joints/day at $28,800-40,000/yr in labor. The MRB fills up to 10,000/day with one operator – paying for itself in weeks, not months.
The MRB uses Pneumatic fluidization technology using a nitrogen-filled airbag leveling system, which delivers a superior, consistent pack compared to legacy tamping methods. The MRB fills material by funneling it through a patented, adjustable top tray that precisely regulates fill volume so no manual pre-weighing is required.
Both machines accomplish similar goals: pre-roll automation, labor savings, scalability and use similar proven STM patented technology. RollCraft is for smaller craft and emerging brands and STM is for higher volume pre-roll producers and output. The main differences: RollCraft MRB – low/high speed control vs variable 0-100, Mini-RocketBox motor is 2x more power and fills a tray in 30-45s vs 45-60s, warranty: 6 months vs 1-year for Mini-RocketBox.
The MRB is your Knockbox alternative. The Knockbox uses a manual pull-slat with plastic construction, not as precise, doesn’t have lift plate and adjustable top tray technology. The MRB is $3500 vs $5400. MRB is made from aluminum and steel. not plastic. MRB does not require any pre-weighing. The adjustable top tray regulates precision filling. Metal MRB vs Plastic Knockbox.
Modular beats the large complicated and expensive all-in-one machines like RollPros, Hesfestus, Aphex, PreRollER every time. Not only is the ROI months instead of years, ease of use, cleaning and maintenance on the most basic level cannot compare. STM is a U.S. based manufacturer with U.S. support.
No. The MRB is the filler. Add the RollCraft ATC ($24,995) for a complete line. Bundle price: $29,995.
Yes, through our finance partner NEC. Most operators hit ROI in 3–6 months through labor savings alone. We accept bank wires, credit cards and can also do layaway and other custom payment plans. Contact us for a custom breakdown.
RollCraft modular preroll machines work with most major brands in all the universal standard cone sizes: 70mm, 84mm, 98mm, and 109mm. Compatible with any standard pre-roll cone.
We sure do. Free virtual video training comes with each RollCraft machine. Our Client Services will schedule your training at the time convenient for you and your team. On-demand videos are also available 24/7 in our Learning Center which is included free to every RollCraft and STM customer. On-site training is available for a cost, inquire at support@stmcanna.com.
Client Services support is available M-F from 9am Eastern to 7:30pm. You can reach out to support@stmcanna.com or chat with us on our website. If after hours, leave a message and we will get back to you the next business day.
Complete the Line
Fill + Close. Under $30K.
★ Best Value -MRB + ATC Bundle Automated Pre-roll Filling & Closing System
Pair the RollCraft MRB filler with the RollCraft ATC Dutch-crown closer. Full automated fill-and-close for 30–70% less than STM premium, 95% less than enterprise systems.
Scale & Grow
Fill + close up to 10,000/day with 1-2 operators.
Speed & Precision
72 joints filled and closed every 3 minutes.
Results that Matter
Clean Dutch crown every time which is ready for retail.
Labor Savings
1-2 operators run the full line instead of 5.
RollCraft Automation – $29,999
Average ROI: 3–6 months through labor savings alone.
What 10,000 Pre-Rolls a Day Looks Like
Full specs on the MRB – STM-engineered, Made in USA, $3,500.
| Output | 10,000 pre-rolls/day |
| Fill System | 44 ft-lb centrifugal nitrogen |
| Power | 110V / 220V |
| Weight | 26 lbs (11.79 kg) |
| Build | Aluminum + steel |
| Cone Sizes | Universal standard |
| Tray Options | 72-joint · 143-joint |
| Warranty | 6 months |
| Origin | Made in USA · Spokane, WA |
| Price | $3,500 |
- Compact — fits tight production rooms
- No pre-weighing required
- Fast teardown between strains
- Separate control module
- One-Tray Workflow compatible
- STM-engineered — not a knockoff
Ready to Stop Hand-Packing?
Short form. Fast response. No pressure.
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