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3M-Matic™ Adjustable Case Sealer - Model A20 (Bottom Belt Drive)

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Brand: 3M-Matic
SKU: 3M-A20

3M-Matic™ Adjustable Case Sealer - Model A20 (Bottom Belt Drive)

Write a Review

Brand: 3M-Matic
SKU: 3M-A20

List Price: $4,318.08

Regular Price: $3,886.27

(Save 10%)

Availability: In stock

Quick Overview
  • Bottom belt drive
  • Processes up to 30 cases per minute
  • Double columns minimizes wear
  • Handles box sizes down to 4.75" H x 6" W
  • Tapes boxes up to 65 pounds
  • *Please Note: Machine pictured w/ optional tables & casters
  • Overview
  • Description
  • Video
  • Specifications
  • Reviews


*Please Note: Machine is pictured with optional tables and casters.

When your packaging volume exceeds the limits of manual case sealing, the 3M-Matic™ A20 case sealer is an affordable option that will increase your productivity for top and bottom taping of cardboard boxes. With quick, easy adjustments you can seal a wide range of box heights and weights.

This bottom drive belt model can tape upwards of 30 cases per minute. With the bottom belt drive, there is a possibility for some slippage, and some inconsistent taping results. For the most consistent taping applications possible, please take a look at our A80 side belt drive model.

Save on Your Packing Tape

You can save 10% on your hand carton sealing tape or machine carton sealing tape orders when you purchase it along with a case sealer. You'll instantly save 10% off of the tape when you add both to your cart. You can also give one of our packaging specialists a call today to place that same order, or see if you can sign a tape agreement and lock in that 10% off price for 1 full year!


  • Reliable motor drive for box after box dependability
  • Designed for use with the full range of 36-48mm (1.5-2") Scotch® Box Sealing Tapes
  • Emergency stop centrally located for quick and easy access
  • Side guides adjustable to center cases of various widths for length of unit
  • Dual masts for taping head stability
  • Laced belts with traction grip for reliable feeding, easy replacement
  • Epoxy powder painted surface for in-plant durability
  • Options: Casters, conveyors, box hold down, and compression rollers to push the top flaps together for a better tape seal.



Manufacturer 3M
Brand 3M-Matic
Manufacturer Sku A20
Belt Orientation Bottom
Belt Speed 78 ft/min
Minimum Box Length 6"
Maximum Box Length Unlimited
Minimum Box Width 6"
Maximum Box Width 21 1/2"
Minimum Box Height 4 3/4"
Maximum Box Height 21 1/2"
Sealer Type Bottom Belt
Color Gray / Red
Electrical 115VAC 60Hz 2.8A 360W
Operating Weight 334 lbs.
Packaged Weight (lbs) 385
Rocket Part Number (RP#) 135199


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3M-Matic™ Adjustable Case Sealer - Model A20 (Bottom Belt Drive)

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  • Pros - Optional
    • Easy to Use
    • Efficient
    • Simple Setup
    show more Pros
    Cons - Optional
    • Heavy
    • Doesn't Work
    • Complex Setup
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    Best Uses - Optional
    • Taping
    • Sealing
    • High Volume
    Used By - Optional
    • Production
    • Shipping
    • Warehouse Manager
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