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Maharashtra, India

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Chocolate Pumping

Chocolate Pumping

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Chocolate Pumping

Pumping chocolate (as well as compound chocolate, creams and cocoa paste) can be a delicate process. For this reason, a number of factors have to be taken into account.    

Because the viscosity of the fluid can be very high, it is essential to select the appropriate chocolate pumps. We recommend using rotary lobe pumps: in addition to being capable of pumping high-viscosity products efficiently, they are hygienic and easy to clean.

Maintaining a constant temperature is very important. Too high a temperature can cause caramelisation of the product, whereas too low a temperature can lead to solidification or crystalisation, resulting in a reduced flow and the corresponding loss in efficiency and /or equipment damage. This could even cause the pump to become completely blocked.

To maintain the temperature of the chocolate and avoid it solidifying inside the pump we recommend fitting a heating jacket to the front cover and/or to the pump body.

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Chocolate Pumping

Solution

Chocolate is an abrasive, shear-sensitive product prone to caramelising, which means that aggressive pumping could damage both the product and any materials that are in contact with it.  For this reason, we recommend low working speeds, always taking into account the type of chocolate and the sealing system being used.

Guaranteeing that the product is contained within a well-sealed pump is particularly important. For chocolate pumping applications, we offer various options (all in compliance with FDA and EC-1935/2004):

a. Lip seal: the most economical option: maximum working pressure of 4 bar. Only recommended for very fluid and relatively non-abrasive chocolates, otherwise the useful life of the seals could be very short.

b. Lip seal with automatic or manual lubricator: maximum working pressure of 4 bar.

c. Mechanical seal with quench and automatic or manual lubricator: maximum working pressure of 4 bar. It consists of single mechanical seals (SiC/SiC/Viton) with lip seal in the rear chamber.

d. Double mechanical seal with automatic lubricator: maximum working pressure limit depends on the pump model.

 

Design and features

The lubricator is a high precision system with electromagnetic actuator, which pressurizes the chambers of the mechanical seals with food-grade grease certified according to USDAH1.

The flow of lubricating grease can be adjusted according to the requirements of the equipment being lubricated, potentially lasting up to 12 months. Hence, the friction faces of the mechanical seals will always work with clean grease between the contact surfaces rather than chocolate, which is abrasive and can caramelize, leading to rapid wear of the surfaces.

For the low-pressure options (b and c), either a manual or an automatic lubricator may be fitted. The manual option is battery powered and must be started and stopped by the operator. The automatic option works via an external power supply, hence it is possible to link it directly to the pump.

For the high-pressure option (d), only automatic lubricators are fitted. In addition, a relief valve is included to eject the grease from the chamber, avoiding any damage occurring due to excess pressure.

Documents

Operating principle

Chocolate is an abrasive, shear-sensitive product prone to caramelising, which means that aggressive pumping could damage both the product and any materials that are in contact with it.  For this reason, we recommend low working speeds, always taking into account the type of chocolate and the sealing system being used.

Guaranteeing that the product is contained within a well-sealed pump is particularly important. For chocolate pumping applications, we offer various options (all in compliance with FDA and EC-1935/2004):

a. Lip seal: the most economical option: maximum working pressure of 4 bar. Only recommended for very fluid and relatively non-abrasive chocolates, otherwise the useful life of the seals could be very short.

b. Lip seal with automatic or manual lubricator: maximum working pressure of 4 bar.

c. Mechanical seal with quench and automatic or manual lubricator: maximum working pressure of 4 bar. It consists of single mechanical seals (SiC/SiC/Viton) with lip seal in the rear chamber.

d. Double mechanical seal with automatic lubricator: maximum working pressure limit depends on the pump model.

 

Materials and Options

Document № FA.SLR Chocolate.1_ES
Title Bombeo de Chocolate
File type .pdf
Summary El bombeo de chocolate (así como sucédaneos, cremas y pastas de cacao) puede llegar a ser un proceso delicado, por lo que hay una serie de factores que deben tenerse en cuenta.
    Download
  • E-mail
Document № FA.SLR Chocolate.1_EN
Title Chocolate Pumping
File type .pdf
Summary Pumping chocolate (as well as compound chocolate, creams and cocoa paste) can be a delicate process. For this reason, a number of factors have to be taken into account.
    Download
  • E-mail
Document № FA.SLR chocolat.1_FR
Title Pompage de Chocolat
File type .pdf
Summary Le pompage de chocolat (ainsi que les substituts, crèmes et pâtes de cacao) peut être un procédé délicat, aussi il convient de tenir compte d’un certain nombre de facteurs.
    Download
  • E-mail
Document № FA.SLR Schocolade.1_DE
Title Schokoladepumpen
File type .pdf
Summary Das Pumpen der Schokolade (sowie Kakaomassen, Kakaobutter usw) kann einen schwierigen Prozess werden, da einige Faktoren müssen berücksichtigt werden.
    Download
  • E-mail
Document № FA.SLR chocolate.1_RU
Title Перекачивание Шоколада
File type .pdf
Summary Перекачивание шоколада (а также его заменителей, кремов и какао-пасты) может быть сопряжено с определенными сложностями, ввиду чего следует учитывать ряд факторов
    Download
  • E-mail

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