From Cocoa Press Cake to Cocoa

Finely-ground cocoa liquor is separated into liquid cocoa butter and solid cocoa press cake in a chamber filter press. While the cocoa butter is filtered and discharged in liquid form or into blocks, the compact cocoa press cake is pre-milled in roller crushers and then dry-milled into finely-ground cocoa powder.

NETZSCH can offer various machine types for pulverizing the pre-crushed low fat or high fat cocoa press cakes depending on their fat content, feed temperature and desired final fineness.

Classifier Mill CSM

  • High specific throughput capacities with low fat qualities (up to 12% fat content)
  • Cooling of the intake air
  • Final products with a defined upper particle size limit thanks to integrated air classifier. 

Fluidized Bed Jet Mill CGS

  • Reliable processing of high fat qualities (22% fat content) in low pressure operation
  • Low wear
  • Well-suited for products containing a large amount of cocoa shells

Impact Mill Condux®

  • Equipped with two counter-rotating pin discs as grinding tools
  • Relative peripheral speeds of up to 250 ms-1
Brochure

Solutions for Dry- and Wet Processing in Production and Laboratory Areas

Cocoa Press Cake

Dry Grinding

Products & Solutions in the field of Dry Grinding
CGS Fluidized Bed Jet Mill

The combination of an air jet mill and a dynamic air classifier represent fine dry grinding in perfection. The highest of final finenesses with an exact maximum particle size limitation become reproducible. The development of the new e-Jet® and s-Jet® grinding methods constantly yields new, interesting areas of application, both economically and technically. Applicable for finenesses from 1 to 70 µm (d97).

Machine sizes available for grinding air volumes from approx. 50 to 12,000 Nm³/h.

Impact Mill Condux®

The mechanical fine impact mill or centrifugal mill is usually operated in the form of a pin disc mill, blast mill, wing beater mill or grooved disc mill. Many products and finenesses for a wide variety of applications are processed with the universal mill, with a wide range of rotor and stator combinations that can be easily changed. Applicable for finenesses from 30 to 800 µm (d97).

Machine sizes with drive capacities from 1.1 - 250 kW and air volume of approx. 140 - 31,000 Nm³/h.

CSM Classifier Mill

The dynamic air classifier integrated into the grinding chamber housing of this fine impact mill manufactures fine particle sizes with a defined maximum particle size limitation. Internal classification of the coarse material results in a more stable and energy efficient process than a mill with an external classification circuit. Applicable for finenesses from 10 to 150 µm (d97).

Machine sizes with drive capacities from 1.5 - 250 kW and air volume of approx. 50 - 26,000 Nm³/h.

CGS 10 and CGS 16 Fluidized Bed Jet Mills

The smallest jet mills for virtually contamination-free fine grinding with an integrated classifier wheel – highest finenesses also achievable with the hardest of products.

For finenesses from 2.5 to 70 µm (d97).

Machine sizes with grinding air capacities of approximately 35 to 125 Nm³/h.

Impact Mill Condux® 60

The universal laboratory mill – flexible, easy to operate! For a high variety of products and finenesses.

For finenesses from 30 to 800 µm (d97).

Machine size with grinding air capacity of approximately 70 to 280 Nm³/h.

CSM 50 and CSM 80 Classifier Mill

The mechanical impact mill with highly developed classifying technology – solid, robust, precise upper particle size limitation.

For finenesses from 10 to 150 µm (d97).

Machine size with grinding air capacity of approximately 100 to 180 Nm³/h.