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BS EN 12331:2021

$198.66

Food processing machinery. Mincing machines. Safety and hygiene requirements

Published By Publication Date Number of Pages
BSI 2021 58
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This document specifies requirements for the design and manufacture of mincing machines (see Figure 1). The mincing machines (hereinafter referred to as machine) covered by this document are used for size reduction of fresh or frozen meat, meat products and fish (hereinafter referred to as product) by cutting in a set of cutting tools. Household machines are not included in this document. Filling mincers are covered by EN 12463 “Food processing machinery — Filling machines and auxiliary machines — Safety and hygiene requirements”. This document applies only to machines that are manufactured after the date of issue of this document. This document covers: a) professional machines (see Figure 1 a) used for on-demand preparation in shops and/or restaurants characterized by all of the following features (if any of the features is missing the machine is considered an industrial machine): 1) designed as a table-top machine; 2) having a feed tray; 3) the product is only fed manually; 4) is only operated from the ground; 5) is operated by no more than one operator; 6) with full visibility and full accessibility of the entire machine from the operator workstation; 7) having hole plate diameter ≤ 106 mm; 8) a worm casing set which is removable without using any tools; 9) the weight of the worm casing set ≤ 15 kg; NOTE The table-top machine can be equipped with a frame or base, so no separate table is needed. b) industrial machines (see Figure 1 b) used for industrial mass production, and which cannot be characterized as a professional machine. This document does not describe the specific requirements for the control of machines with foot switch. This document does not describe the specific requirements for additional mixing screws in the feed intake hopper which are covered by EN 13570:2005+A1:2010 “Food processing machinery — Mixing machines — Safety and hygiene requirements”. Figure 1 – Examples of machines This document covers the following types of machines: – machine with feed tray, feed intake and pusher (see Figure 3); – machine with feed tray, feed intake, restrictor plate and pusher (see Figure 4); – machine with feed intake hopper, protective cover and feeding screw (see Figure 6); – machine with feed intake hopper, with or without protective cover, feeding screw, with loading device (continuously or discontinuously). Machines comprise a machine base, a worm casing with a worm, a feed tray (with feed intake) or a feed intake hopper, a set of cutting tools, a lock nut, a drive motor. They will also have various safeguarding devices as examples in Clause 4. Machines can be equipped e.g. with: – an extraction claw; – an ejector or extractor; – a protective hood over the discharge outlet; – a protective cover over the inlet opening of the feed intake hopper; – a transport carriage for the lock nut, the set of cutting tools, the worm and the feeding screw; – a lifting device for the lock nut, the set of cutting tools, the worm and the feeding screw; – a loading device. The product is fed manually or with a loading device into the machine. The product is fed to the worm either by a pusher or a feeding screw and reduced in size by a set of cutting tools. This document specifies all significant hazards, hazardous situations and events relevant to machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex D). This document specifies the hazards which can arise during commissioning, operation, cleaning, use, maintenance and decommissioning of the machine.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
12 2 Normative references
13 3 Terms and definitions
17 4 Safety requirements and/or measures
4.1 General
4.2 Mechanical safety
4.2.1 General
18 4.2.2 Zone 1 – Requirements for machines with feed intake and worm
21 4.2.3 Zone 2 – Requirements for machines with feed intake hopper and feeding screw
4.2.3.1 General
4.2.3.2 Machines with closed feed intake hopper
22 4.2.3.3 Machines with a protective cover over feed intake hopper
4.2.3.4 Access to the feeding screw
23 4.2.3.5 Machines with continuous operation
26 4.2.4 Zone 3 – Discharge outlet on machines
4.2.4.1 General
4.2.4.2 Design of the end hole plate without protective hood
4.2.4.3 Design of the protective hood
27 4.2.5 Zone 4 – Removal of worm casing set, worm or set of cutting tools
28 4.2.6 Zone 5 – Drive system
29 4.2.7 Zone 6 – Movable machine components e.g. protective cover over hopper edge
4.2.7.1 Manual operation
4.2.7.2 Powered operation
4.2.8 Zone 7 to 10 – Machines with loading devices
4.2.8.1 General
4.2.8.2 Special requirements relating to loading devices on machines
31 4.3 Electrical hazards
4.3.1 General
4.3.2 Protection against water ingress
4.3.2.1 General
32 4.3.2.2 IP degrees of protection
4.3.2.3 Hoods
33 4.3.3 ON- and OFF-switch
4.3.4 Safety requirements related to electromagnetic phenomena
4.4 Stability of the machine
4.4.1 General
4.4.2 Additional requirements for machines with loading devices
4.4.2.1 General
34 4.4.2.2 Stability test
4.4.2.3 Static test
4.4.2.4 Dynamic test
4.5 Noise reduction
35 4.6 Hazards from use of gases (N2, CO2 and steam)
4.7 Ergonomic requirements
36 4.8 Hygiene and cleaning
4.8.1 General
4.8.2 Food area
37 4.8.3 Splash area
38 4.8.4 Non-food area
4.8.5 Surface conditions
4.8.6 Cleaning
5 Verification of safety requirements and/or measures
40 6 Information for use
6.1 General
6.2 Operating instructions
42 6.3 Marking
44 Annex A (normative)Noise test code for mincing machines (grade 2)
A.1 Emission sound pressure level determination
A.2 Determination of the sound power level
A.3 Installation and mounting conditions
A.4 Operating conditions
45 A.5 Measurement
A.6 Information to be recorded
A.7 Information to be reported
46 A.8 Measurement uncertainty
A.9 Declaration and verification of the noise emission values
48 Annex B (normative)Design principles to ensure cleanability of mincing machines
B.1 Definition
B.2 Materials
B.2.1 General
B.2.2 Type of materials
B.2.2.1 Materials for food area
B.2.2.2 Materials for splash area
B.2.2.3 Non-foood area
B.3 Design
B.3.1 General
B.3.2 Food area
50 B.3.3 Splash area
52 B.3.4 Non-food area
53 Annex C (informative)Performance level required
54 Annex D (informative)List of significant hazards
55 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered
BS EN 12331:2021
$198.66