DEMI 4000

Need a scalable post-printing solution for high-volume stereolithography (SLA) production? The DEMI 4000™ is the world’s only automated technology developed for production SLA resin removal. Powered by our proprietary software platform, AUTOMAT3D®, this solution utilizes our patented Submersed Vortex Cavitation (SVC) technology, ensuring consistency and optimizing the rate of resin removal. The solution works in concert with PostProcess’s suite of long-lasting detergents, specialized for applications from standard resins to ceramic-filled resins to high-temp resins. The most recent detergent release outperforms all typical solvents (e.g. IPA, TPM, DPM) on longevity, and offers an exceedingly safe flashpoint over 200°F / 93°C. This decreases the frequency of chemical changeouts and improves sustainability standards.

With a processing tank measuring 890mm x 890mm x 635mm and equipped to hold 258 gallons (977 liters) of resin removal chemistry, the DEMI 4000 can seamlessly process large part sizes or large builds with many smaller-sized parts, improving cycle times and increasing throughput. The utilization of a powered lift system eliminates the need for multiple machines, allowing ergonomic, operator-friendly same-height loading of multiple build trays.

The lift system’s fully-enclosed process envelope provides an optimized operator experience while enabling a cleaner and safer working environment. The process envelope of the DEMI 4000 is aligned with many of the most popular production level SLA 3D printers, including the 3D Systems ProX 800, RPS NEO800, and Stratasys V650.

Want to learn more about the DEMI 4000? Download the PDF specifications.


AUTOMAT3D® Software Features

  • Programmable cycle time
  • Proprietary Agitation Algorithms
  • Storable user recipes

Hardware Features

  • Digital interface
  • Automatic lift to raise and lower build trays in and out of detergent
  • Stainless steel envelope
  • Variable speed, magnetically driven pump
  • Multi-configuration fixture

Size and Weight

  • Envelope: 35” L x 35” W x 25” H (89 cm x 89 cm x 63.5 cm)
  • Machine Footprint: 89” L x 55” W x 94”H (226 cm x 140 cm x 239 cm)
  • Approximate Weight: 2590 lbs. empty (1174 kg), 4886 lbs. (2216 kg) full
  • Lift Capacity: 200 lbs. (90 kg)


  • Capacity: 258 Gallons (977 Liters)
  • SLA and CLIP Materials: PLM-403-SUB

Safety Features

  • Emergency stop
  • Auto power down
  • Safety interlocked door
  • CE, UL/CSE certified


North America:

  • 240V, 60Hz, 3-phase, 30 Amps, HBL430P9W plug
  • Dual agitation with  3500W ultrasonics available


  • 400V, 50hz, 3-phase, 30 Amps, HBL532P6W plug
  • Dual agitation with 3500W ultrasonics available


All of our patent-pending engineered solutions have been developed for high-performance and optimized to use our additive formulated detergents and media. We offer our detergents in pre-mixed 5 gallon and 55 gallon containers. Concentrated versions are also available.

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