Swiss Made drum blenders – Gentle blending

13.07.2018

FUCHS Maschinen AG, Granges-Paccot, is the specialist in blending. This Swiss machine builder manufactures his machines according to the latest CE and FDA directives. All FUCHS machines are convincing by their simplicity, extreme longevity, high energy efficiency and easy hand

FUCHS Maschinen AG, Granges-Paccot, is the specialist in blending. This Swiss machine builder manufactures his machines according to the latest CE and FDA directives. All FUCHS machines are convincing by their simplicity, extreme longevity, high energy efficiency and easy handling. 
Homogeneous blending of solid matters is not always easy. Every day the chemical and pharmaceutical industries manufacture products consisting of various components (blends). Absolutely reliable machines are here required for an extremely gentle blending. The MIXOMAT drum blenders provide their significant advantages: unproblematic cleaning, exchangeable blending containers and many more.  
 
MIXOMAT drum blenders are used in the chemical and pharmaceutical industries for the blending and pre-blending of bulk materials. They are also ideal for hardly freeflowing powders and granules. The MIXOMAT drum blender program is modularly designed and includes blenders for all types of container sizes and applications including the use in cleanrooms.  
 
The smallest blender, the MIXOMAT mini is ideal for blending small quantity batches or carry out on-demand blending using containers of 0.2 to 2 litre capacities to process bulk materials of 2 kg/l maximum specific weight. This blender is fitted with the same characteristics of the large-sized drum blenders and can be directly used on site or in laboratory environment.  
 
The MIXOMAT A blender has been specially designed to be used in laboratories with containers of 3 to 25 litres. A mobile version including a base frame, or a tablemounted model are available. As an option, this laboratory blender may be supplied with single- or double-sided execution.  
 
The MIXOMAT B blender, the standard version, is used with containers of 30 to 400 litres and suits for the following applications: blending, homogenising, inking, blending, sedimented liquid, dissolving solid matters in liquids, etc. As an option, a mobile one- or double-sided version of this blender with shaft ends on both sides and an ATEX version for zones 2/22 or 1/21 are also available. 
 
The electrically tilting MIXOMAT C drum turner is available for container sizes of 100 to 400 litres. At the time, its maximum working load is 400 kg. The economic version of this blender, the MIXOMAT C-SE, is however not suitable for cleanroom applications.  The high-end MIXOMAT C-HE is a drum turner for the highest requirements with tiltable, sealed shaft and closed housing is good for cleanroom applications. Due to its easy handling and high-quality blending capacity, the MIXOMAT C-HE is used to blend powdery products (premixes). The product wetted parts simply consist of a blending container, its cover and, if necessary, a baffle. The blending drums are also interchangeable. In many applications they require no cleaning after each blending operation when using one drum per product. The drum turner is controlled by a PLC. Starting and stopping the blending process, lifting and lowering the drum as well as setting the blending time and the speed of the drum can easily be done by means of the easy-to-use touchscreen. Up to 18 recipes can be programmed and later selected with their blending time and rotational speeds for the drum. 
 
The blending process is easy to describe: the blending drum is filled to a maximum of 70% of its capacity and rotated around its own axes during a preselected blending time. Because the blending drum is mounted at an inclined position on the drum holder, the blending effect is three-dimensional. An additional baffle mounted under the cover accelerates the blending process. Blending is carried out gently and free of residuals. 
 
HR or SP type holders are used to fix the containers. Safe holding with the HR type holder is guaranteed by one quick-action clamping fastener with a special safety locking system preventing any undesired opening of the fastener. When using a SP type holder, the container is held on the holder by means of two SpanSet belts. Such belts are used for holding drums of different diameters (+/- 5 mm). 
 
In most cases little or no maintenance is required. C-SE/C-HE type tilting blenders have for instance only one wearing part, a sealing sleeve between the shaft and the housing, having to be replaced from time to time when intensively used. On the MIXOMAT type A and B drum turners the drive chain must be re-tensioned and lubricated from time to time. The service life of FUCHS «Swiss Made» blenders is expected to be a few decades.  
FUCHS Maschinen AG also manufactures, among other items, SIFTOMAT plansifters. This is an all-round sifter that can solve most of the sifting problems such as sizing, dedusting or controlling. Typical application fields are control sifting in the food, pharmaceutical, chemical or packing industries before packing, simultaneous dedusting and control sifting of bulk products, grain size separations in up to four fractions in one pass and perfect sorting of “longs” and “twins”.