Digital sealing machines for sterilization packages

polystar® 981 DSM
polystar 981 DSM with conveyor rollers
polystar 981 DSM with table

Product description

Digital Continuous Sealing Machines (sealing process validatable)

In-process check: securely sterile!

Wherever validatable sealing processes are a necessity, the polystar® continuous rotary heat sealers in the 981 DSM series are the perfect solution. These machines make sealing, documenting and printing (optional) easier than ever before. Define key sealing parameters using the alphanumeric keyboard and monitor ongoing sealing processes at a glance using the in-process check. Sealing parameters are directly documented with an imprint on the packaging and/or can be recorded on a USB stick or directly on your PC via an RS232 interface. The polystar® continuous rotary heat sealers for sterile films in the 981 DSM series conform to the provisions of DIN EN ISO 11607-2, EN 868-5 and DIN 58953. All sealing processes are automatically monitored by the in-process check. Among other features, the polystar® 981 DSM series includes a rational stand-by function. The transport belts automatically start up only when the goods to be packaged are inserted; when no more material remains to be transported, the belts automatically shut down. However, the pre-selected sealing temperature remains constant so that further sterilised materials can be sealed at any time. The continuous heating and the robust stainless-steel construction facilitate problem-free, round-the-clock use.

Other advantages:

  • 15 mm wave profile
  • Constant throughput speed: 8.5 m/min. (± 5%)
  • Constant pressure: 100 N (± 5%)
  • Configurable pressure tolerance range: 90 – 140 N
  • Configurable temperature range: 50° – 199° C
  • Temperature tolerance: ± 5°C
  • Acoustic and visual warnings if defined tolerances are exceeded
  • Digital counter
  • and many more

Also available in a special design for TYVEK® films. TYVEK® films vary in terms of their quality and therefore also behave differently during sealing. To ensure you purchase the best polystar® brand TYVEK® continuous rotary heat sealer for your purposes, send us a sample of your TYVEK® film.


Technical data

Technical datapolystar® 981 DSM
Speed 8,5 m/Min.
Seal width 15 mm
Sealing temperature 50 - 199°C
Current input 2,2 A
Power consumption 0,4 kWh
Dimensions 550 x 320 x 210 mm
Net weight 18 kg
Power supply 230 V/50 Hz
All machines are supplied with a 2.5m connecting cable. The measurements given are approximate. We retain the right to make technical changes without giving prior notice!



Data sheet 981 DSM (302.19 KB)

Data sheet 981 DSM-T (320.49 KB)

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