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PREN 454

2011 Edition, October 2011

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Superseded By: BS EN 454

Additional Comments:
W/D S/S BY BS EN 454
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Description / Abstract:

This standard specifies safety and hygiene requirements for the design and manufacture of fixed bowl planetary mixers with a tool having a planetary movement. The capacity of the bowl is greater than or equal to 5 l1) and less than or equal to 200 l.

These machines are used to process various ingredients e.g. cocoa, flour, sugar, oils and fat, minced meat, eggs, and other ingredients, in the catering, bakery, pizza, pastry and confectionary industry.

These machines are sometimes used in other industries (e.g. pharmaceutical industry, chemical industry, printing, etc.), but hazards related to these uses are not dealt with in this standard.

Processing is carried out in cycles of variable duration.

It can be either manually or automatically-controlled, in individual cycles or on a cycle repeat basis, etc.

Manual operations are sometimes necessary to add ingredients without stopping the beater.

On machines fitted with a bowl lifting and lowering device or with a device for moving the bowl/head/beater vertically the working position is that when the beater is nearest to the bottom of the bowl.

This European Standard deals with all significant hazards, hazardous situations and events relevant to planetary mixers, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer. It deals with the hazards due to the use, the maintenance and the cleaning (see Clause 4).

This European standard does not deal with the following machines:

— catering attachment for planetary mixers (see EN 12851);

— continuously fed machines; dough mixers (see EN 453);

— experimental and testing machines under development by the manufacturers;

— domestic appliances.

This document is not applicable to machines which are manufactured before its date of publication as a European standard.

1) Note: Below 5 l, EN 60335-1 and EN 60335-2 are applicable.