Stack 2020

New product

  • Speed up to 450 fpm
  • Variable Cut & Stack on the fly
  • TransPromo and Books
  • Flexible control of waste pages
  • Document integrity control


Solution Modules

Unwinder 550 Buffer 530 Cutter c20 Stacker s20 Delivery Table 

More details

More info

Optional Capabilities

Merger m20 Feeder 568 

Solution Options


Product Description

The Stack 2020 system operates in line with web-fed digital printers at speeds up to 450 ft/min. The system delivers 1-up, 2-up or 3-up offset stacks ready for binding utilizing the Buffer 530, Cutter c20 and Stacker s20 units. The optional Merger m20 allows 2-up print to be delivered in a single collated stack ready for inserting.

All modules in the Stack 2020 system incorporate Smooth-Web™ motion technology to gently transport paper from the printer to stacked output. This synchronization of the entire web to changes in speed provides unprecedented reliability and drastically reduces the likelihood of any paper jams. The Buffer 530 accumulates the paper web and weaves it through rollers that rise and fall, filling the buffer and ensuring that stack deliveries will never stop the printer.

The Cutter c20 utilizes a rotary knife to sheet the web and slit for 2-up or 3-up print streams and offsets the entire web horizontally to separate jobs or book blocks before sheets enter the stacker.

Technical Specifications

Speed max.

137 m/min ≈ 450 ft/min


Pinfed or Pinless

Paper Weight

14.5# bond 140# index, 55 – 250 gsm (paper dependent, above 200 gsm requires application review)

Web width

152 – 520 mm ≈ 6″ – 20.5″

Form Length

89 – 457 mm / 3,5″ – 18″ in or special with s28: up to 711 mm (28″)

Stack height

250 mm ≈ 10″ ≈ 2000 sheets


15 mm ≈ 0.6″

Output Options

1-up, 2-up, 3-up with offset and slit merge

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