Alfa Laval Toftejorg SaniMidget SB Series, Instruction Manual

General Description 

Page 4 

Instruction Manual, Alfa Laval Toftejorg SaniMidget SB 

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General Description 

The SaniMidget SB series are tank cleaning machines intended for industrial use in closed tanks, 
vessels and containers under typical CIP procedures. They have a broad range of application areas 
within pharmaceutical, food, dairy and chemical industries. 
 
The SaniMidget SB is a sanitary cleaning device of the rotating fan spray type for permanent 
installation that provides a 270° upward cleaning pattern. The machine is designed in such a way that it 
is completely self-cleaning. If Installed according to the description on page 9, the SaniMidget SB is 
completely self-draining in the shown position and completely inspectable. All product contact surfaces 
are AISI 316L stainless steel or FDA conforming materials. For the SaniMidget SB/3-A plastic material 
that meets the requirements of 3-A Sanitary Standard 20-25 is used. For the SaniMidget SB/UltraPure 
a USP Class VI plastic material is used. 
 
The unique design if totally free of weldings, threads, screws and press-fits to facilitate self-cleanability. 
The cleaning device is lubricated by the cleaning media. No oil, grease or other lubricants are used. 
 
The SaniMidget SB is designed for use in pharmaceutical, biotechnological, food and dairy processing 
applications. It may be used in reactors, mixing/processing tanks, spray dryers and other process 
equipment with a volume from 0.1-10 m³ (27-2,700 US gallons). For larger volumes, multiple 
SaniMidget SB’s may be applied. 
 
Application assistance and recommendations for optimal position is available. 

Functioning 

The flow of cleaning media comes through the down-pipe, flushes the connector and exists 
through between the bearing surfaces, slots and leakage passages. This causes the head of the 
SaniMidget SB to rotate, with fans of water laid out in a swirling pattern on the entire perimeter 
exposed to the spray pattern. This generates a vibrating impact in the 270° upward pattern and a 
dynamic cascading flow that covers all internal surfaces of the tank, vessel or reactor. The 
SaniMidget SB is (as the rest of the UltraPure and Sani portfolio) designed according to GMP – 
safe materials, self cleaning and drainable. The self cleaning feature of the device is due to the 
unique design that includes cleaning of the down pipe. The device is designed with no hindrance 
to gravity draining. The patented easy assembly and disassembly of the device allows for only 
one clip to be used and without any press fits. Upon removing the clip this ensures that no parts 
can fall into the tank (the SaniMidget SB must be held in one hand and the clip in the other hand). 
 

Spray Pattern 

270° upward