SIST EN 12750:2002/kprA1:2009

Safety of woodworking machines - Four-sided moulding machines

Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige Bearbeitung

Sécurité des machines pour le travail du bois - Machines à moulurer sur quatre faces

Varnost lesnoobdelovalnih strojev - Rezkalnik za štiristransko obdelavo

General Information

• Status: Not Published
• Public Enquiry End Date: 03-May-2009
• ICS: 79.120.10 - Woodworking machines
• Technical Committee: VSN - Safety of machinery
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 10-Sep-2012
• Due Date: 15-Sep-2012
• Completion Date: 10-Sep-2012
• 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/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 12750:2001/prA1 - Safety of woodworking machines - Four-sided moulding machines

Relations

• Consolidated By: SIST EN 12750:2002+A1:2009 - Safety of woodworking machines - Four-sided moulding machines
• Effective Date: 01-Oct-2009
• Amends: SIST EN 12750:2002 - Safety of woodworking machines - Four-sided moulding machines
• Effective Date: 01-Apr-2009

Overview

EN 12750:2001/prA1 (CEN draft amendment, Jan 2009) is a safety standard for four-sided moulding machines used in woodworking. Prepared by CEN/TC 142, the amendment updates EN 12750:2001 to clarify hazards, safety requirements and normative references. The revised scope explicitly covers four-sided moulding machines with a maximum working width of 350 mm designed to cut solid wood, chipboard, fibreboard, plywood and these materials when covered with plastic laminate or edgings. The document supports the essential requirements of the EU Machinery Directive and includes informative Annexes ZA and ZB.

Key topics and requirements

The amendment focuses on practical machine-safety topics and risk-reduction measures, including:

• List of significant hazards - mechanical, electrical, thermal, noise, dust and ergonomic hazards (see Table 1).
• Control systems and reliability - safety-related control design (references to EN ISO 13849-1), prevention of unexpected start-up and control failures.
• Operator controls and layout - position and duplication of controls, starting, normal stopping and emergency stop (EN ISO 13850).
• Mechanical integrity - spindle strength, risk of break-up during operation, prevention of access to moving parts and guarding.
• Power and electrical safety - failure of power supply, external electrical influences and EMC considerations (EN 60204-1:2006; EN 50370).
• Ergonomics and human factors - handling, posture, control actuator design (EN 614-1; EN 894; EN 1005 series).
• Environmental and workplace hazards - noise, dust, fire/explosion, lighting and radiation.
• Information for use - marking, instruction handbook and documentation requirements.
• Normative references updated - alignment with modern ISO/CEN standards (EN ISO 12100-1/-2, EN ISO 13857, EN ISO 13849-1, EN ISO 13850, EN ISO 3745, etc.).

Applications and who uses it

This standard is practical for:

• Machine manufacturers and OEMs building or modifying four-sided moulding machines (design, guarding, controls).
• Safety engineers and compliance teams verifying conformity with the Machinery Directive.
• Machine users, maintenance planners and workshop managers implementing safe operation, maintenance and training programs.
• Notified bodies and testing laboratories assessing safety-related parts and conformity to harmonized standards.

Benefits include clearer risk assessment, harmonized technical requirements for guarding and controls, and improved alignment with current ISO/CEN safety standards.

Related standards (selected)

• EN ISO 12100-1 / -2 - basic concepts and design principles for machinery safety
• EN ISO 13849-1 - safety-related parts of control systems
• EN ISO 13850 - emergency stop principles
• EN ISO 13857 - safety distances to prevent reach into hazard zones
• EN 60204-1:2006 - electrical equipment of machines
• EN 50370 series - EMC for machine-tools

Keywords: EN 12750:2001/prA1, four-sided moulding machines, safety of woodworking machines, CEN, Machinery Directive, machine guarding, control systems, risk assessment.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2009
Varnost lesnoobdelovalnih strojev - Rezkalnik za štiristransko obdelavo
Safety of woodworking machines - Four-sided moulding machines
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für vierseitige Bearbeitung
Sécurité des machines pour le travail du bois - Machines à moulurer sur quatre faces
Ta slovenski standard je istoveten z: EN 12750:2001/prA1
ICS:
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 12750:2001
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
January 2009
ICS 79.120.10
English Version
Safety of woodworking machines - Four-sided moulding
machines
Sécurité des machines pour le travail du bois - Machines à Sicherheit von Holzbearbeitungsmaschinen -
moulurer sur quatre faces Fräsmaschinen für vierseitige Bearbeitung
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 142.
This draft amendment A1, if approved, will modify the European Standard EN 12750:2001. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment 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 CEN Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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.
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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12750:2001/prA1:2009: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Modification to the Foreword .4
2 Modification to Clause 1, Scope.4
3 Modification to Clause 2, Normative references .4
4 Modification to Clause 3, Definitions.6
5 Modification to Clause 4, List of hazards.6
6 Modification to Clause 5, Safety requirements and/or protective measures (hanging
paragraph) .9
7 Modification to 5.1.1, Safety and reliability of control systems.9
8 Modification to 5.1.2, Position of controls .9
9 Modification to 5.1.3, Starting.10
10 Modification to 5.1.4, Normal stopping .10
11 Modification to 5.1.5, Emergency stop .10
12 Modification to 5.1.7, Speed changing .10
13 Modification to 5.1.11, Control duplication .10
14 Modification to 5.1.12, Failure of the power supply .10
15 Modification to 5.2.2, Risk of break-up during operation .10
16 Modification to 5.2.3.1, Spindle strength and performance .10
17 Modification to 5.2.7, Prevention of access to moving parts.11
18 Modification to 5.3.1, Fire and explosion .11
19 Modification to 5.3.4, Electricity.11
20 Modification to 5.3.5, Ergonomics and handling.11
21 Modification to 5.3.6, Lighting.11
22 Modification to 5.3.12, Radiation.12
23 Modification to 5.3.16, Isolation .12
24 Modification to 5.3.17, Maintenance .12
25 Modification to Clause 6, Information for use .12
26 Modification to 6.2, Marking .12
27 Modification to 6.3, Instruction handbook .13
28 Modification to Annex D.15
29 Modification to Annex ZA .16
30 Addition of Annex ZB .17

Foreword
This document (EN 12750:2001/prA1:2009) has been prepared by Technical Committee CEN/TC 142
“Woodworking machines - Safety”, the secretariat of which is held by UNI.
This document is currently submitted to the Unique Acceptance Procedure.
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 the Machinery Directive.
For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document.
1 Modification to the Foreword
Replace the fourth paragraph with the following:
"For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document.".
In the sixth paragraph, replace "D and ZA" with "ZA and ZB".
2 Modification to Clause 1, Scope
Replace the first paragraph with: "This document specifies the significant hazards, hazardous situations and
events as listed in Clause 4 which are relevant to four sided moulding machines with a maximum working
width of 350 mm hereafter referred to as "machines" designed to cut solid wood, chipboard, fibreboard,
plywood and also these materials where these are covered with plastic laminate or edgings.".
Delete the second paragraph.
3 Modification to Clause 2, Normative references
Replace the first paragraph with:
"The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.".
Delete the reference to EN 294:1992 and add "EN ISO 13857:2008, Safety of machinery — Safety distances
nd
to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008)", replace in 5.2.5.2, 2
paragraph "4.5.1 of EN 294:1992" with "4.2.4.1 of EN ISO 13857:2008" and "4.3.2.2 of EN 294:1992" with
"4.2.2.1.1 of EN ISO 13857:2008" and replace in 5.2.7 "EN 294:1992" twice with "EN ISO 13857:2008".
Delete reference EN 292-1:1991 in Clause 2 and replace "EN 292-1:1991" with "EN ISO 12100-1:2003"
th
throughout the document and replace "3.24 of EN 292-1:1991" in the 4 paragraph of 5.2.7.2 with "3.27 of
EN ISO 12100-1:2003".
Delete references EN 292-2:1991 and EN 292/A1:1995.
Delete reference to EN 418:1992 and add "EN ISO 13850:2008, Safety of machinery — Emergency stop —
st
Principles for design (ISO 13850:2006)" and replace "EN 418:1992" in 5.1.5, 1 paragraph, with
"EN ISO 13850".
Replace "EN 847-1:1997" with "EN 847-1:2005" throughout the document.
Delete the reference to EN 954-1:1996 and add "EN ISO 13849-1:2008, Safety of machinery — Safety-related
parts of control systems — Part 1: General principles for design (ISO 13849-1:2006)" and replace
"EN 954-1:1996" with "EN ISO 13849-1:2008" throughout the document.
Replace "EN 20354:1993" with "EN ISO 354:2007" throughout the document and replace the bracket in the
title with "(ISO 354:2003)".
Replace "EN 60204-1:1992" with "EN 60204-1:2006" and replace in the title
"(IEC 60204-1:1992, modified)" with "(IEC 60204-1:2005, modified)".
Replace "EN 60947-4-1:1992" with "EN 60497-4-1:2001" throughout the document and replace in the title
"(IEC 60947-4-1:1990)" with "(IEC 60947-4-1:2000)".
Replace "EN 60947-5-1:1997" with "EN 60497-5-1:2004" throughout the document and replace in the title
"(IEC 60947-5-1:1997)" with "(IEC 60947-5-1:2003)".
Replace "ISO 230-1:1998" with "ISO 230-1:1996".
Delete reference to ISO 3745:1997 and add "EN ISO 3745:2003, Acoustics — Determination of sound power
levels of noise sources using sound pressure — Precision methods for anechoic and semi-anechoic rooms
(ISO 3745:2003)" and replace "ISO 3745:1997" with "EN ISO 3745:2003" throughout the document.
Replace reference to "HD 21.1 S3:1997" with "HD 21.1 S4:2002, Cables of rated voltages up to and including
450/750 V and having thermoplastic insulation — Part 1: General requirements" and replace "HD 21.1
S3:1997" with "HD 21.1 S4:2002" throughout the document.
Replace reference to "HD 22.1 S3:1997" with "HD 22.1 S4:2002, Cables of rated voltages up to and including
450/750 V and having cross-linked insulation — Part 1: General requirements" and replace "HD 22.1
S3:1997" with "HD 22.1 S4:2002" throughout the document.
Add the following references:
"EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general
principles",
"EN 894-1:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 1: General principles for human interactions with displays and control actuators
EN 894-2:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays
EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators",
"EN 1005-1:2001, Safety of machinery — Human physical performance — Part 1: Terms and definitions
EN 1005-2:2003, Safety of machinery — Human physical performance — Part 2: Manual handling of
machinery and component parts of machinery
EN 1005-3:2002, Safety of machinery — Human physical performance — Part 3: Recommended force limits
for machinery operation
EN 1005-4:2005, Safety of machinery — Human physical performance — Part 4: Evaluation of working
postures and movements in relation to machinery
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up",
"EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine-tools —
Part 1: Emission
EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine-tools —
Part 2: Immunity",
"EN 60439-1:1999, Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999)",
"EN 61310-1:1995, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for
visual, auditory and tactile signals (IEC 61310-1:1995)" and
"EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology and methodology (ISO 12100-1:2003)
EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles (ISO 12100-2:2003)".
4 Modification to Clause 3, Definitions
Definition 3.19, replace the term with "information from the supplier".
5 Modification to Clause 4, List of hazards
Replace the title with: "List of significant hazards".
Replace the text with:
"This clause contains the significant hazards, hazardous situations and events (see EN 1050:1996) as far as
they are dealt with in this document, identified by risk assessment as significant for the machines as defined in
the scope and which require action to eliminate or reduce the risk. This document deals with these significant
hazards by defining safety requirements and/ or measures or by reference to relevant standards.
These hazards are listed in Table 1 in accordance with Annex A of EN 1050:1996.
Table 1 — List of significant hazards
Relevant
No Hazards, hazardous situations and hazardous EN ISO 12100 clause(s) of
events this document
Part 1: Part 2:
2003 2003
1 Mechanical hazards due to machine parts or work pieces due to
a) shape; 4.2 4.2.1, 5.2.2, 5.2.3,
4.2.2, 5 5.2.5, 5.2.6,
5.3.2
b) relative location; 5.1.2, 5.1.5,
5.2.5, 5.2.6,
5.2.7
c) mass and stability (potential energy of elements which 5.3.5
may move under the effect of gravity);

d) mass and velocity (kinetic energy of elements in 5.2.5
controlled or uncontrolled motion);
e) mechanical strength. 5.2.2, 5.2.3,
5.2.5, 5.2.6
- accumulation of energy inside the machinery by:
g) liquids and gases under pressure; 4.2 4.10, 5.5.4 5.3.7, 5.3.8
1.1
Crushing hazard 4.2.1 5.2.1 ; 5.2.7
1.2 Shearing hazard 5.2.7
1.3 Cutting or severing hazard 5.2.2 ; 5.2.3 ;
5.2.4 ; 5.2.7 ;
1.4 Entanglement hazard 5.2.3 ; 5.2.4 ;
5.2.6 ; 5.2.7
1.5 Drawing-in or trapping hazard 5.2.7
1.6 Impact hazard 5.2.7.2
1.9 High pressure fluid injection or ejection hazard 4.2.1 4.10 5.3.8
to be continued
Table 1 — List of significant hazards (continued)
Relevant
No Hazards, hazardous situations and hazardous EN ISO 12100 clause(s) of
events this document
Part 1: Part 2:
2003 2003
2 Electrical hazards due to:
5.3.4 ; 5.3.15 ;
2.1 Contact of persons with live parts (direct contact) 4.3 4.9, 5.5.4
5.3.16
5.3.4 ; 5.3.15 ;
2.2 Contact of persons with parts which have become live 4.3 4.9
5.3.16
under faulty conditions (indirect contact)
3 Thermal hazards resulting in:
5.3.1 ; 5.3.9
3.1 Burns, scalds and other injuries by a possible contact of 4.4
persons with objects or materials with an extreme high

temperature and also by the radiation of heat sources
4 Hazards generated by noise, resulting in:
5.3.2
4.1 Hearing loss (deafness), other physiological disorders 4.5 4.2.2, 5
(loss of balance, loss or awareness)
7 Hazards generated by materials and substances (and their constituent elements) processed or used by
the machinery
5.3.3
4.3 b), 4.4
7.1 Hazards from contact with or inhalation of harmful fluids 4.8
and dusts
5.3.1
7.2 Fire 4.8 4.4
8 Hazards generated by neglecting ergonomic principles in machinery design related to
5.1.2 ; 5.3.5
8.1 Unhealthy postures or excessive effort 4.9 4.7, 4.8.2,
4.11.12,
5.5.5, 5.5.6
6.3
8.3 Neglected use of personal protection equipment 4.8.7
5.3.6
8.4 Local lighting 4.8.6
to be continued
Table 1 — List of significant hazards (concluded)
Relevant
No Hazards, hazardous situations and hazardous EN ISO 12100 clause(s) of
events this document
Part 1: Part 2:
2003 2003
10 Unexpected start-up, unexpected overrun/overspeed (or any similar malfunction) from:
5.1.1
10.1 Failure/disorder of the control system 4.11, 5.5.4
...