This continuous tempering machine, available with capacities from 250 to 1000 kg/hr is based on the proven and well known Martin Lloveras AAV series tempering machine. The LLoveras AAV tempering machines offer excellent tempering results and prepares your chocolate for smooth and spotless moulding and coating. The heart of this tempering machine is the water circulation and plate system. Other elements of the machine are: The water jacket:
The water for cooling or heating is pumped through the jacket at a pressure of about 2-4 bar. The steel water jackets are welded precisely to an equal wall thickness of about 10 mm. The entire surface is subjected to water flow. Key words are high speed, rotation, no obstructions and no turbulence. The AAV Scraper
The scraper has major influence on the efficiency of the tempering process. The scrapper in the Lloveras AAV type tempering machine separates the chamber in two halves. The underside is cold and the topside is heated. This design ensures that cold and hot crystals do not mix. The chocolate transfer pipe system This system is completely double jacketed. Water is heated by means of an electrical resistance and continuously pumped by means of a water pump throughout the pipes length, while a thermostat controls the temperature. Chocolate not consumed by the moulding plant or enrober is returned by an independent set of pipes back to the pre-cooling tank (optional supply) with its own heating and temperature control section in order to create a de-tempering zone, where crystallisation is destroyed. This return chocolate will then be mixed in the tank with new chocolate coming from the processing section.
Il temperaggio è il processo attraverso il quale i cristalli di burro di cacao nel cioccolato vengono ristabiliti per formare cristalli beta stabili. In genere, la prima fase del processo consiste nel riscaldare il cioccolato a una temperatura di 46 °C, in modo da sciogliere tutte le sei forme di cristalli. In un secondo momento, il cioccolato viene raffreddato a circa 27 °C. A questa temperatura, il cioccolato viene agitato. A questa temperatura il cioccolato viene agitato per creare piccoli cristalli nel cioccolato. Successivamente, il cioccolato viene riscaldato nuovamente a 31 °C, in modo che nella massa di cioccolato rimangano solo i cristalli della forma V desiderata. A questo punto il cioccolato deve essere mantenuto a questa temperatura in modo che sia pronto per essere utilizzato per la modellatura o la copertura, garantendo un cioccolato liscio e lucido.
Caratteristiche
Vantaggi
Sraper blades on all inner surfaces of water jackets