SPExtR Vacuum Extraction System

Nothing is added to the product for the Extraction Process

Pilot Production
Process Development/Trials

No Solvents

No Steam

No CO2

No Hot Gasses

The principle advantages of this system is NO solvent is used, only one single piece of equipment with low thermal hazard, and separate collection areas.

Material is loaded into the cylindrical chamber, the pressure is changed and energy is applied. As the material transfers the energy, the most volatile (lighter molecular weight) portion leaves the chamber to be collected, and a less volatile portion is collected internally. Time is allowed for this energy transfer to be completed and then the internal collector is removed from the chamber. The lightest material is allowed to drain from its collector, or its collector is withdrawn and the remaining plant material is removed from the chamber.  

The major advantages to be expected from the SPExtR extractor are: 

  • Solventless
  • Separate collection of light fractions
  • Separate collection of intermediate fraction
  • Minimized thermal hazard (a necessity for heat sensitive compounds) 
  • Decarboxylation 
  • No high pressures
  • Nothing is added in the process besides the starting plant material and a collection vial. 


The SPExtR is a highly effective tool in the laboratory due to its numerous essential design features. Whether you opt for the SPExtR-Lab model, which holds approximately 0.5 gallons, for development and trial purposes, or the larger SPExtR-5G model, which accommodates around 5 gallons, for pilot production work, both versions offer exceptional functionality and versatility. The SPExtR-Lab variant is ideal for conducting experiments and trials on a smaller scale, allowing researchers to fine-tune their processes before scaling up to larger production volumes. On the other hand, the SPExtR-5G model is designed for pilot production work, enabling users to produce larger quantities of their desired product with ease and efficiency. With its innovative design features and user-friendly interface, the SPExtR;s stands out as a top choice for laboratory work. Whether you are working on developing new products or scaling up production, the SPExtR series provides the tools and capabilities needed to achieve successful results in a laboratory setting. Choose the model that best suits your needs and take advantage of the advanced features offered by SPExtR for your research and production projects

  • Simple to clean. – Mostly stainless steel with minimum glass usage No gear pump to clean or leak.
  • Simple design allows for easy set up and moving location. Requires little space for operation.
  • Information/process developed is easily scaled up to larger sized models


Both SPExtR’s are designed to separate thermally sensitive compounds in a particular molecular weight range. The system utilizes a pressure change at start then the material in the chamber is subjected to a certain amount of energy. This energy transfer takes advantage of the molecules mean free path. Once parameters are reached, time is allowed for complete energy transfer and collection occurs. The SPExtR-Lab is for research and development of process that are scaled to the larger SPExtR-5G.


The SPExtR system is designed as a batch system.  

  • The material is loaded into the process chamber
  • Liquid nitrogen is loaded and cooling water flow is started
  • An isolation valve is opened and system pressure reduced
  • The energy input is started.
  • Energy is applied to plant material and product is collected. Lighter molecular product are collected separate
  • The collection vials and left over plant material are removed
  • New plant material and a new vial is then loaded and the process repeated.

The SPExtR will accept material for process that has been properly dried and over 0.039” in size.


With the SPExtR systems the processed material will only come in contact with 300 series stainless steel, Viton, Tygon (or equal), neoprene and glass.


All of the readouts and controls are conveniently grouped. On smaller systems all necessary switches along with displays are grouped together in a convenient location. Larger systems utilizes a touch screen for control.

Pictured above, touch screen SPExtR-5G.
Pictured above, control SPExtR-Lab

For more information, quote, detailed description of operation, or discussion of the system usage Please contact us at dmyers@myers-vacuum.com

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