DEMI 4000 Series – Resin Removal

Need a scalable post-printing solution for high-volume stereolithography (SLA) production? The DEMI 4000™ Series 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, the DEMI 4000 Series 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 Series? Download the PDF specifications and watch the latest “How It Works” video!


AUTOMAT3D® Software Features

  • Programmable cycle time
  • Storable user recipes
  • Proprietary Agitation Algorithms
  • CONNECT3D® Factory Automation

Hardware Features

  • Digital interface
  • Automatic build tray life
  • Chemically compatible pump
  • Configurable lift fixture
  • Leveling casters for easy installation & setup

Size and Lift

  • Envelope: 35” L x 35” W x 25” H (89 cm x 89 cm x 63.5 cm)
  • Lift Capacity: 200 lbs. (90 kg)

North America:

  • DEMI 4000 – 240V, 60Hz, 1-phase
  • DEMI 4100 – 240V, 60Hz, 3-phase


  • DEMI 4000 – 230V, 50hz, 1-phase
  • DEMI 4100 – 400V, 50hz, 3-phase

DEMI 4000 & DEMI 4100*

  • Footprint: 89” L x 49.8” W x 87.7” H (226.2 cm x 126.6 cm x 222.8 cm)
  • Approximate Weight: 2730 lbs (1238 kg) empty, 5100 lbs (2313 kg) full
  • Detergent: 260 gallons (984 liters) PLM-403-SUB
    • Implement an IPA-free resin removal workflow with AUX-400-RINSE as the final rinse step. **Note: rinse step is to be performed in separate container, not to be used in PostProcess hardware

Safety Features

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

*With Ultrasonics


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.

Learn more about Chemistry.