FD 6604 Series High-Volume Folder Inserter

High-capacity features

formax fd6602 The versatile Formax FD 6604 Series High-Volume Folder Inserter has the power and flexibility to handle a wide variety of folding and inserting jobs. The FD6602 Folder/Inserters can process up to 4,300 envelopes per hour, producing 80,000 finished pieces per month. The Formax FD6604 Series Folder Inserter is available with Optical Mark Recognition.

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The versatile 6604 Series adapts to most any folding and inserting application. Models are available with 2-7 stations, offering the flexibilty to meet your specific needs. A variety of input configurations includes a high-capacity document feeder for up to 725 sheets, 1 or 2 high capacity production feeders, standard and special feeders, and short feed trays. The 6604 Series is capable of folding and inserting top, middle and bottom-addressed ducuments into top-flap envelopes.

Standard features include a large 10.4" reversible full-color touchscreen control panel, a vertical output stacker which can hold up to 500 filled envelopes, along with a large top-loading envelope hopper with a capacity of up to 500 envelopes. The 6604 includes a new energy-saving feature which automatically puts the inserter into standby mode after 1 hour of being idle.

Various levels of Barcode Recognition (BCR) and Optical Mark Recognition (OMR) are available and feature new CIS scanning technology, which offers greater flexibility and productivity.

Additional options include a thin booklet feeder for up to 325 inserts, high-capacity output conveyor and envelope hopper for up to 1,000 envelopes each, side exit tray, cabinet and 402 Series Joggers.  Download the Datasheet

Standard Features:

  • Modular design with 7 feed stations
  • 10.4" full-color touchscreen control panel with improved ergonomics, can be viewed at an angle and tilted to the operator's height
  • AutoSetTM: One-touch set-up
  • 25 programmable jobs
  • Vertical output stacker holds up to 500 filled envelopes, with reverse stacking output
  • High-Capacity Document Feeder holds 725 sheets
  • Large top-loading envelope hopper holds up to 500 envelopes for continuous operation
  • Two double-document detectors provide exceptional security
  • Diverter: Sensors redirect double documents and incomplete sets without interruption
  • Processes up to 4,300 envelopes per hour
  • Fold types: C, Half, Z, Double Parallel and no fold
  • Folds up to 10 sheets of paper (Half-fold) and up to 8 sheets (Tri-fold)
  • Energy-saving automatic standby mode


  • Thin Booklet Feeder: Inserts pre-folded documents or booklets up to 2.5 mm thick
  • Production Feeders: 1 or 2, each feeds up to 1,200 sheets or 375 BREs
  • High-Capacity Envelope Hopper: Holds up to 1,000 envelopes
  • High-Capacity Output Conveyor: Holds up to 1,000 filled envelopes
  • Side exit tray holds up to 500 filled envelopes
  • 1D, 2D Data Mattrix and Flex BCR
  • 1-Track, 2-Track & Flex OMR
  • Short Feed Trays, Cabinets, Joggers

For More Information:

Call to speak with a Relyco equipment consultant at 1-800-777-7359 -  or email This email address is being protected from spambots. You need JavaScript enabled to view it. ,

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