Solvent Recyclers & Extraction Systems for Essential, Cannabis and Hemp Oils

Recovering Solvent with Solvent Removal & Purification Systems

Solvent Removal/Recycling | Solvent Extraction of Cannabis and Hemp Oil

Application: Solvent Removal/Recycling

CBG’s SRS Series™ equipment is programmed for time, temperature and vacuum levels (with a vacuum assist on the SRS2). The ethanol distillation process is automatic from start to finish and can be completed in just a few hours—to less than a day—depending on the volume being processed. As a result, there’s no need to continuously and manually monitor/adjust temperature and vacuum levels, saving you time and labor. Simply turn it on and walk away.

SRS-solvent-recyclers.jpgSRS Series™ Solvent Removal Systems™

Used for: Solvent Removal/Recycling

 SRS Series™ Technical Data Sheet




Default Operation Temperatures

130°C (266°F)

70°C (158°F)

Approximate Solvent Recovery Rate
l/h = liters per hour

8g/15g = 7.6l/h

8g/15g = 5.32l/h

Approximate Solvent Recovery Rate
gal/h = gallons per hour

8g/15g = 2gal/h

8g/15g = 1.4gal/h

Approximate % Solvent Volume Recovered



Approximate Processing Times

8g = ~5hrs
15g = ~8hrs

8g = ~6hrs
15g = ~10hrs

Recommended Environment Ambient Temperature for Operation

20°C–35°C (68°F–95°F)

20°C–35°C (68°F–95°F)

Electrical Requirements
FLA = Full Load Amps
**208V/1PH/60Hz will require a buck boost transformer to boost voltage up to the 220–240 range

8g/15g = 30 FLA

8g/15g = 27FLA
Chiller = 26FLA


One 30 Amp power feed needed for the SRS1

One 30 Amp power feed for the recycler and one 30 Amp power feed for the Chiller required

Vacuum Assist






Exhaust Requirements

Vent to outside atmosphere or ventilation system

Vent to outside atmosphere or ventilation system

Space Requirements
**Heights listed are with the tank lid open, all heights also assume 15-inch legs

L x W x H
8g/15g = 120” x 102” x 96”

L x W x H
8g/15g = 164” x 102” x 96”

Dimensions of Unit
**Heights listed are with the tank lid open, all heights also assume 15-inch legs

L x W x H
8/15g = 48” x 30” x 74”

L x W x H
8/15g = 92” x 77” x 74”

Weight of Unit
**These are dry weights, does not include the weight of thermal oil or solvent volume

8g/15g = 760 lbs. est.

8g/15g = 1200 lbs. est.

Safety Ratings

UL2208 Certification
UL61010 Certification

UL2208 Certification
UL61010 Certification


  • Capacity: Our SRS Series™ is available in 8G (30L) and 15G (56L) sizes. The entire capacity doesn’t need to be used to effectively process and remove solvent used when processing to recover concentrate. These systems are designed to enable bulk production and recovery in the volumes you require. This automation, coupled with the SRS Series™ logarithmic program, enables consistent solvent removal processing for a consistent quality product batch to batch.
  • Preservation of Yield: The CBG SRS Series™ operates in a controlled and enclosed environment within the unit’s footprint. It doesn’t possess a boiling column or a condenser in sequence, so the risk of valuable essential oils going up and into the condenser is avoided, preserving valuable yield.
  • Materials of Construction and Safety: The CBG SRS Series™ is made of high-quality 304 grade stainless steel (SRS1 and SRS2 Series are UL2208 certified; 316 grade stainless steel is available). The stainless-steel configuration is also quite durable, not subject to cracking or breaking, unlike expensive and fragile glass components.  
  • Advanced Capabilities: The SRS Series™ is equipped with:
    • Standard PLC controls (SRS-1 and SRS-2 only)
    • On-screen cycle progress and diagnostic monitoring
    • Multiple emergency shut-downs for safety with pressure-relief valve
    • Multiple monitoring probes that accurately control operating temperatures
    • Collection bags designed to provide easy removal of the final concentrate from the boiling tank
Economics: Recovered ethanol is reusable for extraction and/or purification after distillation, greatly reducing future ethanol purchases and expensive disposal costs.

Application: Solvent Extraction of Cannabis and Hemp Oil

CBG’s Extraction/Purification/Distillation and Recovery System (EPD=R™) is designed to process and purify essential oils and help capture the desired cannabinoids from cannabis and hemp—an ever-changing and progressive industry.

EPD=R™ Extraction, Purification and Distillation System

Used for: Solvent Extraction of Cannabis and Hemp Oil


The EPD=R™ System is composed of three modules, one for extraction, purification and distillation respectively.

The 30L Subzero Extraction Module:

  • Automated extraction
  • User-defined parameters
  • In-line dewaxing
  • Sub-zero temperature control
  • Touchscreen interface
  • Compatible with existing solvent removal equipment
  • Can be used with flower, stem or processed material

Concentrate Purification Module:

  • In-line heat exchanger
  • Automatic recirculation
  • In-process filtration
  • Process view sight glass
  • Operator-defined programs
  • Touchscreen interface
  • Compatible with existing solvent removal equipment

Distillation Module:

  • Fractional distillation
  • UL2208 and UL61010 certified
  • Dual-wall stainless steel (Type 304) processing tank
  • Thermal-oil heating
  • Air-cooled stainless steel condenser
  • PLC control with LCD display
  • Safe Hands hydraulic lift tank lid

At the forefront of helping provide clean, effective concentrate for those who need it most, our EPD=R™ System is an EtOH Extraction and Purification System that extracts and purifies biomass to yield essential oils using high-purity ethanol. The system then distills the ethanol—enabling it to be recovered for future extractions—and separates it from the essential oil and concentrate.

Ethanol is a tried and true solvent that’s been used for centuries to craft tinctures, essential oils and similar substances. In modern times, alcohol is still among the most commonly deployed solvents. Ethanol is nontoxic and is both a polar and nonpolar compound, making it the ideal solvent for botanical extraction. CBG’s automated 30L extractor and purification modules provide subzero temperatures to cool plant material and chill ethanol. When ethanol’s temperature is lowered below freezing, its pickup of soluble components is substantially slowed and the ability to attach to frozen water-based components is nearly eliminated. The automated purification module has been designed to preheat and filter the solution through your choice of activated carbon or other media prior to distillation.

The distillation module uses fractional distillation, which is a special type of distillation designed to separate a mixture of two or more components that have different boiling points. The process involves heating the mixture and partial condensation of the vapors along a column (fractionating column), which is configured so that components with lower boiling points pass through it and are collected earlier than the components with higher boiling points. Generally, this method is used when the component parts boil at less than 25° C from each other. Fractional distillation differs from simple distillation because the fractionating column naturally separates compounds based on boiling point.

CBG’s EPD=R™ System operates in a controlled environment within the unit’s footprint.  It’s built modularly, enabling you flexibility when processing. This also enables you to process multiple batches of biomass per day—thereby providing excellent concentrate quality and throughput.

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