prEN 15571

Machines and plants for minig and tooling of natural stones - Safety - Requirements for surface finishing machines

2009-11-06 EMA: Deleted following 3-year timeframe.
2009-09-09 SJ: Under Alert 2 - can be deleted if no text by end September 2009.

Maschinen und Anlagen zur Gewinnung und Bearbeitung von Naturstein - Sicherheit - Anforderungen für Flächenschleifmaschinen

Machines et équipements pour l'exploitation et l'usinage de pierres naturelles - Sécurité - Prescripitions relatives aux machines de finition de surface

La présente norme s’applique aux machines fixes de finition de surface fonctionnant de manière continue et aux machines de finition de surface se déplaçant sur des rails, ci-après dénommées machines, qui sont utilisées pour meuler (polir) les surfaces horizontales de dalles brutes habituellement sciées grossièrement, en pierre dure comme le granit ou d’autres pièces usinées similaires à la pierre.
Ces machines sont conçues pour fonctionner avec des têtes de meulage sur lesquelles l’outil approprié  le bloc de meulage (de polissage)  est fixé au moyen d’un support.
La présente norme traite tous les phénomènes dangereux, situations et événements dangereux significatifs applicables aux machines de finition de surface lorsqu’elles sont utilisées normalement et lorsqu’elles sont utilisées dans des conditions de mauvaise utilisation raisonnablement prévisibles par le constructeur (voir article 4). La présente norme spécifie les mesures techniques appropriées pour éliminer ou réduire les risques liés aux phénomènes dangereux significatifs.
La présente Norme européenne ne traite pas :
-   les machines à meuler le métal ;
-   les machines à meuler le bois ;
-   les machines mobiles disposées sur un train de roulement progressant sur le sol ;
-   les meuleuses portatives ;
-   les machines conçues pour fonctionner dans une atmosphère explosible ;
-   les éléments de convoyage amont et aval pour le transport des pièces usinées.
La présente Norme européenne ne traite pas les phénomènes dangereux significatifs liés au bruit.
Le présent document ne s’applique pas aux machines fabriquées avant sa date de publication par le CEN.

Stroji in obrati za miniranje in obdelavo naravnega kamna - Varnost - Zahteve za stroje za dodelavo površine

General Information

• Status: Not Published
• ICS: 25.080.50 - Grinding and polishing machines
• ICS: 73.120 - Equipment for processing of minerals
• Technical Committee: CEN/TC 151 - Construction equipment and building material machines - Safety
• Drafting Committee: CEN/TC 151/WG 11 - Machines and plants for mining and tooling of natural stone - Safety
• Current Stage: 5098 - Decision to abandon - Formal Approval
• Start Date: 06-Nov-2009
• Completion Date: 06-Nov-2009
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Mandate: M/BC/CEN/88/13 - Standardization request to CEN/CENELEC relating to machinery
• Ref Project: oSIST prEN 15571:2007 - Machines and plants for minig and tooling of natural stones - Safety - Requirements for surface finishing machines

Overview

prEN 15571 is a European draft standard developed by CEN/TC 151 focusing on the safety requirements for surface finishing machines used in the mining and tooling of natural stones. These machines are primarily designed to grind and polish horizontal surfaces of natural stone slabs such as granite. The standard provides comprehensive guidance on reducing risks associated with the operation of such machinery, specifically targeting stationary machines and those moving on rails.

This standard supports manufacturers and operators in ensuring compliance with safety regulations by identifying significant hazards and prescribing protective measures and safety requirements. It is essential for stakeholders in the construction equipment, stone processing, and machinery manufacturing industries.

Key Topics

• Scope of Application
  The standard applies to stationary surface finishing machines and rail-guided machines used for grinding and polishing natural stone slabs. It excludes metal or wood grinding machinery, mobile ground machines, hand-held devices, machinery for explosive atmospheres, and conveyors.

• Types of Machines Covered

  • Machines with a movable transversal bridge operating on tracks
  • Machines with a longitudinal bridge and belt conveyor for continuous operation

• Safety Aspects Addressed

  • Mechanical hazards such as crushing, shearing, cutting, entanglement, and drawing-in risks
  • Electrical hazards including direct and indirect contact
  • Electromagnetic radiation considerations
  • Hydraulic and pneumatic component safety
  • Risks related to falling or ejected objects and loss of machine stability
  • Operational hazards such as slips, trips, and falls linked to machinery usage

• Hazard Identification and Risk Assessment
  The standard identifies significant hazards through a structured risk assessment approach following EN ISO 12100, ensuring that both typical and foreseeable misuse scenarios are covered.

• Safety Requirements and Protective Measures
  Requirements include mechanical safeguards, emergency stop devices, proper guarding, and safety markings. Design principles focus on the elimination or reduction of risks by technical and organizational means.

• Verification and Compliance
  Verifying safety measures through tests and inspections is mandated to ensure ongoing compliance with protective standards.

• User Information
  The standard emphasizes the importance of clear markings, comprehensive operating manuals, and safety instructions to aid safe machine operation.

Applications

• Natural Stone Processing Plants
  Surface finishing machines adhering to prEN 15571 are commonly integrated into stone-processing facilities for producing polished granite, marble, and other natural stone slabs.

• Construction Equipment Manufacturing
  Manufacturers designing mining and tooling machines can use the standard as a guideline when developing safe, compliant surface finishing machinery.

• Safety and Compliance Auditing
  Inspectors and safety engineers employ the standard as reference criteria when evaluating existing machinery in stone processing environments.

• Training and Operation
  Operators and maintenance personnel benefit from standardized safety information that reduces accident risks during machine setup, operation, and servicing.

Related Standards

prEN 15571 references several critical European and ISO standards to support comprehensive safety frameworks:

• EN ISO 12100 - General principles of machinery safety and risk assessment
• EN 294 - Safety distances to prevent upper limb access to danger zones
• EN 349 - Minimum gaps to avoid crushing hazards
• EN 418 - Emergency stop equipment design
• EN 953 - General guard design requirements
• EN 982 & EN 983 - Safety requirements for hydraulic and pneumatic systems
• prEN 60204-1 - Electrical equipment safety requirements
• EN 60529 - IP codes for electrical enclosure protection
• EMC standards (prEN 61000 series) - Electromagnetic compatibility requirements for industrial environments

Conclusion

prEN 15571 is a crucial standard that enhances safety in the operation of natural stone surface finishing machines. By addressing a wide range of mechanical, electrical, and environmental hazards, it provides a structured approach to risk management in natural stone tooling operations. Implementing this standard helps safeguard workers, improve machinery reliability, and ensure regulatory compliance across the European market.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2007
Stroji in obrati za miniranje in obdelavo naravnega kamna - Varnost - Zahteve za
stroje za dodelavo površine
Machines and plants for minig and tooling of natural stones - Safety - Requirements for
surface finishing machines
Maschinen und Anlagen zur Gewinnung und Bearbeitung von Naturstein - Sicherheit -
Anforderungen für Flächenschleifmaschinen
Machines et équipements pour l'exploitation et l'usinage de pierres naturelles - Sécurité -
Prescripitions relatives aux machines de finition de surface
Ta slovenski standard je istoveten z: prEN 15571
ICS:
25.080.50 Brusilni in polirni stroji Grinding and polishing
machines
73.120 Oprema za predelavo rudnin Equipment for processing of
minerals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2006
ICS
English Version
Machines and plants for minig and tooling of natural stones -
Safety - Requirements for surface finishing machines
Maschinen und Anlagen zur Gewinnung und Bearbeitung
von Naturstein - Sicherheit - Anforderungen für
Flächenschleifmaschinen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 151.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15571:2006: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .4
1 Scope.4
2 Normative references.4
3 Terms and definitions – Symbols and abbreviated terms.6
4 List of significant hazards .10
5 Safety requirements and/or protective measures.10
5.1 Mechanical hazards.10
5.1.1 General.10
5.2 Electrical hazards.13
5.3 Electromagnetic Radiation.14
5.4 Hydraulic and pneumatic components.14
6 Verification of safety measures and/or protective measures .14
7 Information for use .14
7.1 Marking.14
7.2 Other information.14
7.3 Accompanying documents (in particular: Instruction handbook) .15
Annex A (normative) Pictograms .18
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC .19

Figures
Figure 1 — Surface finishing machine with transversal bridge.6
Figure 2 — Surface finishing machine with longitudinal bridge . 7
Figure 3 — Swing grinding (polishing) head . 7
Figure 4 — Planetary grinding (polishing) head. 8
Figure 5 — Disk grinding(polishing) head . 8
Figure 6 — Grinding (polishing) block . 8
Figure A.1 — "Read the manual" (see ISO 7000:1989) . 18
Figure A.2 — “Hearing protection must be worn” . 18

Foreword
This document (prEN 15571:2006) has been prepared by Technical Committee CEN/TC 151 “Construction
equipment and building material machines — Safety”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
Annex A is normative and contains pictograms.

Introduction
This document is a type C standard as defined in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards,
the provisions of this type C standard take precedence over the provisions of the other standards, for
machines that have been designed and built according to the provisions of this type C standard.
1 Scope
This standard applies for stationary surface finishing machines in a continuous operation and surface finishing
machines to be moved on rails, in the following called machines, which are used to grind (polish) horizontal
surfaces of raw hard stone slabs being normally roughly sawn, e.g. granite and other work pieces similar to
stone.
These machines are provided to be operated with grinding heads on which the proper tool – the grinding
(polishing) block – is seated in a holder.
This standard deals with all significant hazards, hazardous situations and events relevant to surface finishing
machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable
by the manufacturer
(see clause 4). This standard specifies the appropriate technical measures to eliminate or reduce risks arising
from the significant hazards.
This European Standard does not deal with:
 metal grinding machines;
 wood grinding machines;
 mobile machines on a running gear, which is running on the ground;
 hand-held grinding machines;
 machines intended for operation in a potentially explosive atmosphere;
 upstream and downstream conveying elements for transporting the workpieces.
This European Standard does not deal with significant hazards associated with noise.
This document is not applicable to machinery which are manufactured before the date of publication of this
document by CEN.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies (including amendments).
EN 294:1992, Safety of machinery — Safety distances to prevent danger zones being reached by the upper
limbs
EN 349:1993, Safety of machinery — Minimum gabs to avoid crushing of parts of the human body
EN 418:1992, Safety of machinery — Emergency stop equipment, functional aspects; principles for design
EN 953:1997, Safety of machinery — General requirements for the design and construction of guards (fixed,
movable)
EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and their components —
Hydraulics
EN 983:1996, Safety of machinery — Safety requirements for fluid power systems and their components —
Pneumatics
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up
EN 1050:1996, Safety of machinery — Principles for risk assessment
EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology, methodology
EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles
EN ISO 14122-1:2001, Safety of machinery — Stationary accesses to mechanical installations — Part 1:
Selection of a fixed access between two levels
EN ISO 14122-2:2001, Safety of machinery — Stationary accesses to mechanical installations — Part 2:
Platforms and footbridges
EN ISO 14122-3:2001, Safety of machinery — Stationary accesses to mechanical installations — Part 3:
stairs, stepladders and railings
EN ISO 14122-4:2004, Safety of machinery — Stationary Accesses to mechanical installations — Part 4:
stationary vertical ladders
prEN 60204-1:2006, Electrical Equipment of Machines — Part 1: General Requirements
EN 60529:1991, Systems of protection by cases (IP Code) (IEC 529:1989)
prEN 61000-6-1:2006, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for
residential, commercial and light- industrial environments
EN 61000-6-2:2005, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity for
industrial environments
prEN 61000-6-3:2006, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission
standard for residential, commercial and light-industrial environments
prEN 61000-6-4:2006, Electromagnetic compatibility (EMC) — Part 6-4: Generic standards — Emission
standard for industrial environments
3 Terms and definitions – Symbols and abbreviated terms
For the purposes of this document, the definitions given in EN ISO 12100 apply. Additional definitions
specifically needed for this document are added below :
3.1
surface finishing machine with mobile transversal bridge (track machines)
machine with stationary work piece table and a movable bridge on a machine track equipped with mobile
grinding tool slides for grinding (polishing) horizontal surfaces of stone slabs by an appropriate grinding
(polishing) head as tool. During the grinding (polishing) process the tool is cooled by water. Additionally the
water serves also for suppressing the development of dust during operation.
The machine can be equipped with :
 automatic grinding (polishing) head change system with tool – magazine;
 grinding (polishing) head change system with bayonet locking;
 accessory units for milling;
 accessory units for polishing

Key
1 bridge 6 track
2 running gear 7 drive of longitudinal adjustment
3 drive of lateral adjustment 8 tool slide
4 drive of grinding spindle 9 tool
5 control desk 10 tool magazine
Figure 1 — Surface finishing machine with transversal bridge
3.2
surface finishing machine with longitudinal bridge and belt conveyor (continuous operating machine)
machine with belt conveyor table and a longitudinal bridge for grinding (polishing) the horizontal surface of
stone slabs with an appropriate grinding (polishing) head as tool. During the grinding (polishing) process the
tool is cooled by water. Additionally the water serves also for suppressing the development of dust during
operation.
The machine can be equipped with:
 grinding (polishing) head change system with bayonet locking;
 accessory units for milling;
 accessory units for polishing

Key
1 loading roller track 7 cover (sliding doors)
2 tension drum 8 tool slide
3 belt conveyor 9 tool
4 measuring device for vertical and lateral adjustment 10 bridge
5 drive of lateral adjustment 11 drive of belt conveyor
6 drive of grinding spindle
Figure 2 — Surface finishing machine with longitudinal bridge
3.3
grinding (polishing) head
different types of grinding (polishing) heads are used as tool to pick-up the proper grinding (polishing) blocks
These serve for the generation of an additional relative movement between grinding (polishing) block and
work piece
Key
1 toothed wheel 4 grinding (polishing) segment holder
2 grinding (polishing) segment carrier 5 grinding (polishing) segment
3 enclosure of grinding (polishing) segment
Figure 3 — Swing grinding (polishing) head
Key
1 toothed wheel 4 flange bearing
2 grinding (polishing) head carrier 5 grinding (polishing) segment holder
3 enclosure of grinding (polishing) segment 6 grinding (polishing) segment
Figure 4 — Planetary grinding (polishing) head

Key
1 toothed wheel 4 grinding(polishing) segment holder
2 grinding(polishing) disk carrier 5 grinding(polishing) segment
3 grinding(polishing) disk flange
Figure 5 — Disk grinding(polishing) head
3.4
grinding(polishing) block
the grinding(polishing) blocks (grinding (polishing) segments) make the contact between the tool holder and
the tool and remove the material of the work piece to be processed. During this process they also undergo a
wear
Key
1 grinding (polishing) segment
2 holder saddle with dovetail
Figure 6 — Grinding (polishing) block
3.5
other terms
3.5.1
block
a block is square-shaped natural stone which is manufactured as half-finished product by processing with the
ashlar quarrying
3.5.2
slab
a slab is a work piece in form of a plate cut by saw from a block and provided for further processing
3.5.3
track
guide element for the bridge, which is usually stationary and embedded in the foundation or foundation walls
3.5.4
running gear
the running gear is the guide element on the track and carries the bridge
3.5.5
semiportal
if the track is situated near the bottom and not on foundation walls we talk about a lowered running gear and a
semiportal machine
3.5.6
bridge
the bridge is the connection between the right and the left running gear saddle
3.5.7
main drive
the main drive generates the tool mov
...