Sugar

The word sugar encompasses much more than it means in common speech. Saccharose is what we commonly understand and know as sugar. Sugar is finely ground for numerous applications, be it for chocolate, jams or jellies, ice cream, drinks or bakery products such as cookies.

Fine sugar guarantees short dissolving times during further processing or it can be used to decorate delicious desserts. Depending on the use for which it is destined, various particle sizes are required, which can be produced on NETZSCH fine impact mills Condux®!

In the past, only conventional pin mills were used. Today, considerably higher throughputs can be obtained using so-called blast mills. The usual powdered sugar finenesses of 80 – 95% < 100 µm can be obtained, as well as considerably higher finenesses.

Perhaps the higher product qualities achieved are even more important than the high throughput capacities and product finenesses. These qualities are valued due to the low invert sugar content of the product which is obtained due to the principally lower grinding temperature within the powder mill.

The plant technology regarding dust explosions and the realization of modern safety concepts are also crucial points for the grinding of powdered sugar. The grinding of crystal sugar makes high demands on the technology to be used, as well as on the execution of a grinding plant, as the danger of dust explosions cannot be excluded during the mechanical grinding of sugar. Adequate constructional explosion measures, which can be realized as part of various plant designs, are necessary for this:

  • The shock pressure resistant design up to an excess explosion pressure of 10 bar(g) of the complete grinding system in a conventional assembly, has been the most frequently used version up until now.
  • A pressure-relieved plant, designed for a reduced explosion pressure of 3 bar(g), in which the so-called pressure relief is carried out via a rupture disc integrated in a dust filter to a non-endangered exterior area.
  • The new ATEX-compliant plant design Condux® Compact has now made the installation of a high-performance sugar-grinding plant considerably easier: Explosion protection valves or explosion-suppression equipment, explosion-decoupling, ventilators and even dust filter systems are no longer necessary in the classical sense.

Dry Grinding

Products & Solutions in the field of Dry Grinding
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.

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 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.