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Peter Wiesböck Product Manager

HEFTER Systemform GmbH
Am Mühlbach 6
D-83209 Prien am Chiemsee

Inserting machine SI 4250

Inserting with comfort

The HEFTER Systemform SI 4250 inserting machine features a high variety of applications. At the same time it's highly comfortable to use and very productive with its maximum output of 3.000 cycles/h.

Highlights of the inserting machine SI 4250

  • Max. 2 feeding stations for documents
  • Extra large feeding station for enclosures up to 2 mm thickness
  • Fold types: Single, wrap and double parallel fold
  • Automatic fold adjustment
  • Envelope lift
  • Large operating panel with display
  • Up to 20 jobs programmable
  • Automatic double sheet control
  • "CasCade function": Automatic switch if one feeding station is empty
  • Speed: max. 3.000 cycles/h

Inserting with high feeding capacity

For a real efficient processing the feeding stations of the SI 4250 have real high capacities. Each feeding station for documents can load more than 300 sheets, the enclosure stations up to 300 enclosures and the envelope lift is capable of loading 300 envelopes. This allows to process material continuously for a long time without having to reload and to take advantage of the high speed of up to 3.000 cycles/h.


Optionally the SI 4250 can be upgraded, e.g. with:

  • OMR reading station (Optical Mark Recognition): It allows the inserting machine to insert individually and automatically with the help of specific character codes.
  • Power-Stacker tray
  • Inline connection to a franking machine
  • Individually adjusted to your needs.

Product video Inserting machine SI 4250

Technical data & downloads of the inserting machine SI 4250

Automatic feeding station for unfolded documents 2
Automatic feeding stations for enclosures (envelope size) 1
Paper width (in mm) 178-229
Paper length (in mm) 178-406
Paper weight for unfolded documents (in g/m2) 70-120
Max. thickness of the enclosures / enclosures in envelope size 2 mm
Fold types Single, wrap, Z- and double parallel fold
Automatic fold adjustment yes
Test function yes
Speed max. (strokes/h)* 3.000
Feeding capacity for each document station (max. number of sheets, 80g/m2)* 325
Multiple feeding of station 1 yes
Feeding capacity of enclosure station (max. number of sheets, 80g/m2) up to 300 mm
Capacity of the envelope station max. (number of envelopes) 300
Envelope sizes C6/5, C5, C6
Envelope lift yes
Cascade function (automatic switch if one station is empty) yes
Max. number of sheets in envelopes (C6/5)* 5
Max. number of sheets in envelopes C5* 10
Daily mail function yes
Number of programmable jobs 20
Large display with graphic, icons and digits yes
Automatic counter / precounter for envelopes yes
Automatic double and missing sheet control yes
Automatic fault management yes
OMR (Optical Mark Recognition), 2-D Code yes
Inline connection to a franking machine yes
Power-Stacker tray yes
Cabinet yes

 *depending on material and applications
subject to technical changes