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CRG 100-4 Drums (Series II)

Designed to last and perform its function efficiently, The CRG 100-4 series II sample roaster incorporate the same manufacturing concepts and quality standards with which JOPER manufactures industrial and shop roasters.

The CRG 100-4 series II sample roaster with 4 drums runs on gas and it is possible to roast a small batch of 100 g of green beans, also check and verify the quality of the roasted coffee and use it as a pattern for large scale roasting.

Stable, easy to operate, low maintenance, equipped with digital temperature control and a thermocouple in each roaster drum to measure the temperature of the bean mass itself, the result is highest efficiency in sample roasting.

The CRG 100-4 series II quickly become one the most demanded sample roaster for medium and large roasteries, cooperatives, associations of producers, exporters/importers, which made JOPER their new suppliers for new projects, as well as for substituting old sample roasters.


  • Built with lids in metal.
  • Non-drilled roaster cylinder with special blades that ensure optimum coffee movement and excellent roast results.
  • Fuel type: Propane Gas (LPG) or Natural Gas (LNG).
  • Roaster process easily controlled by sample tube and digital temperature.
  • Bean temperature sensors.
  • Thermal isolation of high quality in ceramic nerve to reduce the energy loss.
  • 3 independent motors: (220V 50Hz 1 Phase) (110V 60Hz 1 Phase).
  • Easy operator control.
  • Easy maintenance with included toolkit.
  • Each drum is equipped with gas pressure gauge to control the roasting process with more precision.
  • Separate chaff collecting cyclone included with 0.37 kW cooling fan.
  • 1 Year Warranty
  • Can be prepared for data loggers cropster or artisan. It has a extra cost.
  • Optional: Rear shield golden painted and drum cover plates. Standard: Silver

Series II
per batch g/oz
Power supply Fuel
CRG 100-4 100/3.5

 8-15 min  110-220 V / 50-60 Hz / 1 Ph

Propane Gas

CRG 100-2 100/3,5

CRG 100-6 100/3,5



Download the Sample Roaster CRG 100-4 (Series II) Brochure

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