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Heat  Sealing  Equipment  for  Mil-Spec &  Industrial  Bag  Packaging  Applications

Doboy AT Continuous Rotary Heat Sealer

The Doboy Model AT is a rotary sealer designed for continuous motion sealing of support films like cellophane, polypropylene, Mil-Spec laminates, and Padded Mailing Envelopes.

Typically used for applications like candy packaging, snack foods, padded mail envelopes, jiffy bag envelopes, bakery mixes, military hardware and electronic components.

Note: Guarding removed from machine in photo.  Always operate machinery with guarding in place.

The Model AT has been discontinued. Suitable replacement options include the Doboy CBS-D and B-550 Continuous Band Bag Sealers.  For smaller, tabletop applications, the Doboy HS-BII Rotary Heat Sealer is also an excellent replacement for the Doboy Model AT.

Doboy Model AT Sealer Photo

Detailed Photos

Machine Features

  • Designed to seal Cellophane, Glassine, Laminates, Coated Papers, Heat Sealable Foils, and Moisture Barrier Materials
  • Full-length Carrier Chains for Bag Top Control
  • Standard "Checkered" Seal Pattern
  • 24" Preheat Section and Heated Sealing Rolls
  • Independent Temperature Controllers for Preheat Bars and Sealing Rolls
  • Rugged Sealing Roll Construction Provides Parallel Seal Contact
  • Adjustable Speed and Seal Pressure
  • Hand-Crank Adjustable Floor Stand
  • Made in the USA

Options / Accessories

  • Casters for Portability
  • Digital Temperature Controller
  • 12", 36" Preheat Sections
  • Left to Right Feed Direction
  • Bag Top Folder
  • Bag Top Printer
  • Ink Jet Printer
  • Bag Top Trimmer
  • Custom Electrical Configurations
  • Spare Parts Kit

Machine Specifications

Seal Width
Feed Direction (Standard)
Right to Left
Speed Range
325 to 475 IPM
Overall Length (with 24" Heating Section)
Overall Width
Overall Height
49" to 69"
Seal Height
27" to 47"
Machine Weight
475 to 675 pounds
Electrical (NEMA 1)
230 V / 60 Hz / 1 Phase