3M-Matic a20 and a20-S Adjustable Stainless Steel Case Sealer


3M-Matic™ Adjustable Case Sealer a20 is a bottom belt, adjustable case sealer and the a20-s is built in stainless steel for corrosive environments. Built with 3M™ AccuGlide™ Taping Head 2+, this case sealer provides low-impact application of tape to prevent damage to cases during sealing. We constructed 3M-Matic™ Adjustable Case Sealer a20 with a reliable motor drive for excellent and dependable box-after-box results.


  • Consistent durable case taper that manually adjusts to handle multiple box sizes
  • Rugged construction with 16-gauge welded stainless steel frame
  • Bottom belt drive for positive box conveying
  • Seals up to 30 cases/min
  • Includes 3M AccuGlide 2+ Stainless Steel Taping Heads for low-impact application of tape 36mm to 48mm wide

Box-After-Box Dependability

Engineered for dependability, 3M-Matic™ Adjustable Case Sealer a20 is a bottom belt, adjustable case sealer that reliably seals uniform cases. This product is ideal for operations currently taping boxes by hand. We designed this case sealer with 3M™ AccuGlide™ Taping Head 2+ for low-impact application of tape to prevent case damage. Equipped with a durable motor drive and bottom belt drive, our 3M-Matic™ Adjustable Case Sealer a20 provides positive box conveying and box-after-box dependability. This bottom belt adjustable case sealer also has laced belts with traction grip for reliable feeding and easy replacement.

Recommended Applications

  • 3M-Matic™ Adjustable Case Sealer a20 is used across a wide range of industries, including:
  • Food and beverage
  • Medical devices
  • Pharmaceutical
  • Electronics
  • Retail
  • Manufacturing and distribution centers

Equipped to Adjust Quickly

3M-Matic™ Adjustable Case Sealer a20 comes with side guides that easily adjust to center cases, handling various widths and lengths. This rugged, epoxy powder-painted case sealer is constructed with dual masts for taping head stability and an emergency stop centrally located for quick and easy access.

Addition options for this unit include: Casters, conveyors, box hold down and compression rollers to push the top flaps together for a better tape seal.

Affordable Solution for Reliable Results

When your packaging volume exceeds the limits of manual case sealing, the 3M-Matic™ Adjustable Case Sealer a20 is an affordable solution that can help increase productivity for top and bottom sealing of regular slotted cartons (RSC). With quick, easy adjustments, you can seal a wide range of case heights and sizes. Leverage the features of 3M-Matic™ Adjustable Case Sealer a20 and enjoy box-after-box dependability.

 Brand:3M-Matic
 Color:Gray
 Drive System: Bottom Belt
 Frame Material:Stainless Steel 
 Industries:Paper, Food and Beverage, Medical, General Industrial, Consumer Goods, Print 
 Machine Type:Uniform Sized Boxes 
 Maximum Box Height:21.5 inches 
 Maximum Box Weight:65 lbs 
 Maximum Box Width:21.5 inches 
 Minimum Box Height:4.75 inches 
 Minimum Box Length:6 inches 
 Minimum Box Width:6 inches 
 Operation:Operator folds flaps 
 Product Form:Each 
 Tape Width:2 inches 
 Tape Width (metric):48 mm 





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