Image of blurred cartons moving at speed around a bend on a conveyor system
Improve Throughput and Reduce Packaging Costs

Increase productivity to grow your bottom line.


3M-Matic™ Case Sealers

  • Improve Productivity and Reduce Operating Expense

    How do you get your packages securely sealed, out the door and into the hands of your customers in the fastest, most efficient manner? It starts with 3M-Matic™ Case Sealers. For 50 years, packaging facilities everywhere have relied on these productivity-enhancing solutions for consistent, efficient case sealing, day after day.

  • Numbered image of a 3M-Matic Case Sealer pointing out standard features
    Standard features apply to all models except a20 and a80
  • 3M-Matic™ Case Sealers Standard Features

    1. Frame-mounted tape drum assembly
    2. Wide frame for mast and leg support
    3. Dual lead screw: lead screw in both masts for raising the upper assembly
    4. Easily accessible E-stops
    5. Floating upper heads
    6. Floating side drives
    7. Laced and grooved belts
    8. Belt guards on pinch points
    9. Graduated leg adjustments
    10. 16-gauge steel-robotic welds
    11. Dual masts: one support on each side of case sealer
    12. Left- or right-hand controls
    13. Reliable motors
    14. 3M™ AccuGlide™ Taping Heads ensure reliable tape application without box damage

Product Categories

Case sealing is required in a variety of markets: food and beverage, medical devices, pharmaceuticals, electronics, retail, manufacturing and distribution centers to name a few.

  • Quick manual adjustment sets up these rugged units to reliably and accurately seal runs of same-size cartons. When the run is complete, manually adjust the machine for a new run.

  • These rugged case sealers automatically adjust to reliably and accurately seal different-size cartons from the same production line or different lines set up to feed one sealing line.

  • The 3M-Matic™ Case Former and Sealer forms boxes automatically – eliminating the awkward bottom flap-folding step in manual case packing can help boost assembly line speed and productivity, depending on processes, by up to 25%.

  • mage of open boxes moving along a conveyor belt to a worker who folds flaps to prepare for sealing
    Flap Folding

    Case sealers with this feature automatically fold flaps, eliminating the need for an operator to be constantly present. They quickly and easily adjust to a wide range of case heights and widths.

Find Your Solution

Need Help Finding the Right Case Sealer?

Our packaging experts are always available to help you find the right solution. Connect with a 3M Expert or use the 3M-Matic™ Case Sealer Comparison Tool

Right Tapes. Right System. Right Partner.

Using the wrong case sealing solutions can cost more than you think. Are you experiencing these common – and costly – end-of-line issues?

  • Material Waste: Disposing of tape (and money) before the roll is depleted

    Equipment Downtime: Shutdowns due to frequent changeovers or unplanned maintenance or repairs

    Injuries and Ergonomics: Safety issues due to repetitive motion and the sharp knife edge on a hand dispenser

    Missed Application: Missing or popped tape, or tape applied in the wrong spot

    Manual Rework: Re-taping boxes the sealer missed, or too many operators on the line

    Equipment Upkeep Costs: Exceeding your parts budget or performing unplanned maintenance

  • Pie graph showing total cost of shipping materials per package, with Scotch® Box Sealing Tape behind box, void fill, label

    Small Investment, Big Return

    You need the right case sealing solution to solve your specific challenges. 3M is a company based on science: we invented Scotch® tape 75 years ago and 3M-Matic™ 50 years ago, and we’ve been leading the market ever since. Our local experts will work with you at your sites to help you identify, quantify and realize the savings from our Systems Approach.

  • Scotch® Box Sealing Tapes From 3M Really Deliver

    Delivering quality to keep the line moving and ensure packages are sealed on arrival.

    • Our tape can wrap around the world 3.5 times before a defect is found (based on 2015 plant data)
    • Less interruption in production
    • Substantial savings in rejected shipments

    Delivering service and support to help you select the right box sealing tape.

    • Certified ISTA Packaging Lab provides product consultation and testing
    • On-site consultation visits by experienced 3M Engineers and Sales Specialists

    Learn More

  • Image of a hand-held tape gun sealing a box with a Scotch® box sealing tape
  • Systems Tape Agreement: Helps Improve Production and Helps Reduce Packaging Cost

    To using 3M™ Scotch® packaging tape

    A 3M-Matic™ box sealing machine free today.*

    * T&C apply

    Learn More

Case Sealer FAQs

  • A 3M-Matic™ Adjustable Case Sealer is manually adjusted to seal a long run of cartons that are the same height and width. A 3M-Matic™ Random Case Sealer adjusts itself to the height and width of each box as it arrives.
  • Top and bottom belt 3M-Matic™ Case Sealers (denoted by the number 7 in the model number) are often the best drive system configuration and are highly recommended for most carton-sealing applications. The four-belt system securely drives the carton through the case sealer without skewing or tipping it and tape is securely applied down the center seam. For instance, with a tall but not very long box the top and bottom belts hold the carton so it doesn’t tip as it's taped, keeping your operations running smoothly.
  • Side belt 3M-Matic™ Case Sealers (denoted by the number 8 in the model number) can be used for boxes of all sizes but are especially useful for taping narrow-width boxes. Make certain the side belts are spring-loaded to allow a little give when box widths vary slightly, such as with overstuffed cartons.
  • Bottom belt drive 3M-Matic™ Case Sealers (denoted by the number 2 in the model number) only have the two drive belts at the bottom, requiring a little more weight in the box for stable conveyance through the case sealer. Because there are only two belts, bottom belt machines cost less than others and can be a great place to start improving your productivity.
  • Sometimes there are box sizes that are outside the typical operating range of a case sealer – they may be too short or too large. 3M-Matic™ Case Sealers can be customized to your unique box requirements. In some instances this may be a simple extension of the existing columns; in other situations we will engineer a custom sealer from the ground up using standard 3M-Matic™ Case Sealer components.
  • The short answer is that it depends on how you're packaging your product today. 3M-Matic™ Case Sealers can tape boxes for shipment and replace hand taping. Shifting to a flap-folding machine removes the need for an operator to fold the top flaps and present the box to the case sealer. A case sealer can be used to pre-form cartons, which can reduce your costs and increase productivity. A 3M Packaging Specialist can best recommend a solution after visiting your site and discussing your needs.
  • Scotch® Box Sealing Tape is our strong recommendation. 3M-Matic™ Case Sealers and Scotch® Box Sealing Tape are engineered to work together as a system, providing you the best equipment, the best taping head and the best carton-sealing tape. You get great adhesion, along with reliable and consistent case sealer performance.
  • 3M-Matic™ Case Sealers have a great reputation in the market for being rugged and durable. We've been selling 3M-Matic™ Case Sealers for 45 years, and while not all those units are currently in operation, we do have customers who are using equipment that's over 20 years old. Obviously operating conditions and maintenance impact longevity, and every customer’s factory is different. Nevertheless, we are with you through the long haul, and we stake our reputation on our reliability. A 3M-Matic™ Case Sealer is a long-term investment.
  • Each operating manual details available parts and recommended maintenance procedures. Most 3M-Matic™ Case Sealers are basic machines, and there are a few wear parts that need periodic replacement depending on usage, including drive belts and taping head blades to cut the tape. Participating in the 3M Systems Agreement Program by purchasing Scotch® Box Sealing Tape makes these parts available to you at no cost. Otherwise, there are a variety of ways to purchase 3M replacement parts.
  • 3M-Matic™ Case Sealers have parts that may wear over time, such as blades, belts, springs and rollers. You can maintain optimal performance with replacement parts made specifically for your model. 3M replacement parts are engineered for rugged duty with steel construction and epoxy-coated surfaces. You can expect in-stock parts to be promptly delivered to you, whether you’re doing preventive maintenance or rebuilding a 3M-Matic™ Case Sealer after years of service.

    For Replacement Parts contact CSPD at Combi:

Box Closure Solutions

Improve Your Box Closure Operations

Box closure is an integral step in the packaging process that can cause delays and increase costs if you don’t have the proper tools. That’s why 3M offers a full line of products and accessories that help expedite the closing process. From standard boxes to the five-panel folder, the tuck-in folder and everything in between, 3M Packing, Shipping and Fulfillment products can help you improve efficiency, which can also reduce costs and increase throughput.

  • 3M-Matic™ Case Sealers and Scotch® Box Sealing Tape are engineered to work together as a system, providing you the best equipment, the best taping head and the best carton-sealing tape. You get great adhesion, along with reliable and consistent case sealer performance.

  • 3M™ Taping Heads are patented with a curvilinear design that applies tape securely and with low impact to help protect even lightweight cartons and contents. Each taping head is durably constructed to create a low maintenance tape application solution that works shift after shift.

  • 3M™ offers a range of dispensers, including hand-held, heavy-duty pull-and-tear table top, definite length, semi-automatic and dispensers that deliver tape adhesive side up.

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Whether it’s time to put your expertise together with ours and dive into details or there’s something specific you’re not finding, we’re here to help you out.