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Atomic Closer

atomic closer


Dutch Crown 72 Joints in Just 45 Seconds!

The patented Atomic Closer is the only ultra compact and expandable modular pre roll closing machine available designed to incorporate the human touch for a true premium quality look and feel. 


Compatible w/: 84mm, 98mm, 109mm, Dog Walkers & 98mm

  • Significant ROI within weeks & substantial reduction in labor costs
  • Intuitive touch screen controls for effortless operation
  • Effortless cleaning and maintenance for hassle-free operation
  • Works with most filling machines for maximum versatility*
  • A comprehensive two-year warranty for added peace of mind

$49,000 / Payments as Low as $994/Mo*
*For 60 months, OAC. Reach out to our sales department via chat for more information.

Atomic Closer Features

By automating the process of closing joints, the Atomic Closer can help to alleviate the pain point  of closing joints and enhance operational efficiency.

Close 72-Pre-Rolls in 45 Seconds Fast!

Daily capacity up to 11,500* (1 tray & 1 person) and much more by adding additional trays.

Easy to Use,
Painless to Clean

Simple to use with the 7″ touchscreen control and super easy to clean in only minutes.

Professional Crown Fold, More Even Burn!

Eliminate the #1 pre-roll bottleneck with crown folding providing a more even burn!

Compatible with the #1 RocketBox & Others**

Atomic Closer works best with the STM RocketBox & Mini-RocketBox. However, can also be used with other machines.**

Easily Increase Output,

Need to close more joints. Easy! Add another tray or more.  More trays = more joints per hour, per day & per week.

Made in USA with a
2-Year Warranty.

Durable stainless steel & aluminum construction with food grade materials. Made in the U.S.A and Serviced by STM! 

Managing two Mini’s & an Atomic Closer, we can do
8,000-10,000 infused pre-rolls a day!

2022 Michigan Cannabis Cup Winner for Best Infused Pre-Roll
Ryan Ratzloff, CEO Lion Labs, Michigan

Pre Roll Closing Machine


Joints Closed Per 45 Sec Cycle
Approx. Closed Per Hour
Approx. Closed Per Day
Atomic Closer Joints


Joints Closed Per 45 Sec Cycle
Approx. Closed Per Hour
Approx. Closed Per Day

STM Canna Atomic Closer Pre-Roll Closing Machine

Small Form. Huge Impact.

The process of closing pre-rolls is not only time-consuming but also the most expensive labor component in pre-roll manufacturing. However, STM’s compact Atomic Closer automatic pre-roll closing machine can significantly reduce costs and increase production when used in conjunction with other STM products, such as the Revolution grinder and RocketBox pre-roll machines, as part of STM’s One-Tray Automated Pre-Roll Workflow.


The Atomic Closer is an automated pre-roll machine that creates a hand-packed feel by crown folding finished joints, resulting in a professional-looking pre-rolled joint that burns evenly without canoeing. It is the simplest closing machine available, delivering fast and consistent results, and is effortless to clean and maintain.

Advanced Automated Pre-Roll Systems

As with all of STM Canna’s machinery, the Atomic Closer can function independently, however, it is much more efficient as part of STM Canna’s complete one-tray pre-roll automation workflow system from grind to close. 

  • STM Canna provides a comprehensive pre-roll automation workflow system that optimizes your entire operation, from grinding and packing to weighing and closing. The workflow is unique and proven, and it can be easily scaled as your business grows.

  • By investing in STM Canna, you’re investing in your future. The company is constantly innovating, improving, and expanding, ensuring that you always have access to cutting-edge technology.

  • STM Canna’s latest offerings include the STM Launchpad Scale, which provides accurate and reliable weights, and the industry-leading STM RocketBox commercial Pre-Roll Machine, which boasts advanced technology and functionality.



STM Canna has hundreds of satisfied customers in 41 U.S. States and 8 countries.

  • “The RocketBox 2.0 is simply the best in the industry bar none!”

    Metolius Hemp Company
  • “Great machine, simple to use, great customer service.  Short learning curve, makes some of the best joints out of the several machines I’ve tried.”

    Matt H., Verified Buyer
  • I love all the resources and the company checkin on us, it feels more like you want us to understand the machine. So far we have loved the support and we are looking forward to producing with you guys.”

    Ascend Wellness Holdings, MI
  • “Our Efficiencies have increased, labor costs decreased and it makes a superior product all around”

    Levi Budz, Budz Butter, WI

* Your results may vary. Factors include number of people, trays, machines, material prep, material type etc.  Numbers  based on average runs per hour with 1 or more trays and 1 or more people. If you use other pre-roll machines with the Atomic Closer, you need to use our trays and make sure the fill line meets our requirements.  Adding more machines, trays and people can drastically increase the output. Contact our sales team for more information.
* We cannot guarantee fill lines and weights for dog walker, cig reefer and 98 slim reefer trays, however, our client services team can help you get them dialed in. Also, these are custom trays and subject to slightly longer lead times
** You are required to use our tray system with other filling machines so there is an extra step moving filled joints into one of our trays before closing. We cannot guarantee 100% compatibility with other machines since the Atomic Closer was designed to work with the STM RocketBox, however, we have several clients who successfully use the Atomic Closer with other pre-roll filling machines.

  ALL NEW RocketBox Pro
Up to 5000+ Filled Per Hour!