EN 13525:2005/prA1

Forestry machinery - Wood chippers - Safety

Wood chippers with integrated chain conveyors in the infeed chute. 2nd Paragraph - Add after the 1st sentence the following:
"It also applies to chippers fitted with an integrated feed belt or chain conveyor."
Modifications to Clauses 1, 3, 4, 5.4, 6.1, 6.3, B.4.2 and Annex C.

Land- und Forstmaschinen - Buschholzhacker - Sicherheit

Machines forestières - Déchiqueteuses - Sécurité

Gozdarski stroji - Sekalniki - Varnost

General Information

• Status: Not Published
• ICS: 65.060.80 - Forestry equipment
• Technical Committee: CEN/TC 144 - Tractors and machinery for agriculture and forestry
• Drafting Committee: CEN/TC 144/WG 8 - Forestry machinery
• Current Stage: 5060 - Closure of Vote - Formal Approval
• Start Date: 11-Mar-2007
• Due Date: 15-Feb-2007
• Completion Date: 11-Mar-2007
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Ref Project: SIST EN 13525:2005/oprA1:2005 - Forestry machinery - Wood chippers - Safety

Relations

• Merged Into: EN 13525:2005+A1:2007 - Forestry machinery - Wood chippers - Safety
• Effective Date: 22-Dec-2008
• Amends: EN 13525:2005 - Forestry machinery - Wood chippers - Safety
• Effective Date: 22-Dec-2008

Overview

EN 13525:2005/prA1 is a European standard developed by CEN that focuses on the safety requirements for forestry machinery, specifically wood chippers equipped with integrated feed conveyors. This amendment expands the original scope to explicitly cover wood chippers fitted with integrated feed belts or chain conveyors in the infeed chute, ensuring safer operation and maintenance.

The standard is essential for manufacturers, operators, and safety regulators concerned with reducing hazards associated with wood chippers-machines widely used in forestry and logging operations. It addresses specific mechanical safety features, guarding, and operational guidelines to mitigate risks such as entanglement, pinching, and unintended contact with moving parts.

Key Topics

• Scope Extension
  The amendment clarifies that the safety requirements also apply to chippers fitted with integrated feed belts or chain conveyors, broadening applicability beyond just chain conveyors.

• Integrated Feed Conveyor Safety
  Detailed safety requirements for various infeed conveyor types:

  • Feed belts must be guarded in compliance with EN 620:2002 standards regarding continuous handling equipment and bulk material conveyors.
  • Chain conveyors must meet specific dimensional and profile criteria to minimize operator hazards, including:
    • Minimum 400 mm distance from lowest infeed chute edge to first tooth of chain conveyor to prevent accidental contact.
    • Smooth, continuous tooth profiles with defined angular requirements to reduce clothing entanglement risks.
    • Maximum tooth height set to 30 mm and chain conveyor speed limited to 0.3 m/s.

• Guarding and Pinching Hazard Prevention
  Imperforate guards on sides and front must prevent direct pulley access and extend to the conveyor’s lower plane. Pinching hazards are mitigated by strict dimensional limits on the gap between chain teeth and the infeed chute floor (≤ 8 mm on sides, ≤ 25 mm at the front).

• Instruction Handbook Requirements
  Operators must be informed of prohibitions such as modifying the chain conveyor tooth contours and the importance of stopping engine or power transmission before clearing blockages in machines with integrated feed conveyors.

• Referenced Standards
  Inclusion of EN 620:2002 for related safety and EMC requirements of fixed belt conveyors ensures harmonized safety approaches across related equipment.

Applications

• Forestry Industry
  The standard is critical for designing, manufacturing, and maintaining wood chippers used in forestry to ensure operator safety around integrated feed systems.

• Equipment Manufacturing
  Wood chipper manufacturers must comply with this standard for product certification to meet European safety directives and regulations.

• Occupational Safety & Training
  Operators and maintenance personnel benefit from the standardized safety measures described, reducing workplace accidents involving feed conveyors.

• Regulatory Compliance
  National standards bodies across European countries adopt this standard following CEN directives, making compliance necessary for legally placing wood chippers on the market within the EU and EFTA.

Related Standards

• EN 620:2002 – Continuous handling equipment and systems - Safety and EMC requirements for fixed belt conveyors for bulk materials. This is referenced for guarding and safety criteria related to conveyor systems integrated into wood chippers.

• EU Machinery Directive – EN 13525:2005/prA1 supports the essential safety requirements outlined in EU machinery directives, promoting harmonized safety across the European market.

• CEN/TC 144 Standards – This standard is part of the broader portfolio managed by the CEN Technical Committee 144, which addresses tractors and machinery for agriculture and forestry, ensuring coherence in safety protocols across related forestry equipment.

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Keywords: EN 13525:2005/prA1, wood chippers safety standard, forestry machinery safety, integrated feed conveyor, chain conveyor safety, feed belt guarding, EU machinery directive compliance, wood chipper guarding, forestry equipment safety regulations, CEN standards forestry machinery.

Standards Content (Sample)

SLOVENSKI SIST EN
13525:2005/oprA1:2005
PREDSTANDARD
maj 2005
Gozdarski stroji - Sekalniki - Varnost
Forestry machinery - Wood chippers - Safety
ICS 65.060.80 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
DRAFT
EN 13525:2005
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
March 2005
ICS
English version
Forestry machinery - Wood chippers - Safety
Machines forestières - Déchiqueteuses - Sécurité Forstmaschinen - Buschholtzhacker - Sicherheit
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 144.
This draft amendment A1, if approved, will modify the European Standard EN 13525:2005. 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 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, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13525:2005/prA1:2005: E
worldwide for CEN national Members.

EN 13525:2004/prA1:2005 (E)
Foreword
This document (EN 13525:2004/prA1:2005) has been prepared by Technical Committee CEN/TC 144
“Tractors and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR.
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).
EN 13525:2004/prA1:2005 (E)
Scope
nd st
2 Paragraph - Add after the 1 sentence the following:
“It also applies to chippers fitted with an integrated feed belt or chain conveyor.”
2 Normative references
Add the following reference:
“EN 620:2002, Continuous handling equipment and systems - Safety and EMC requirements for fixed belt
conveyors for bulk materials”
3 Definitions
Amend definition 3.6 to read:
“belt chain or similar conveyor, either in front …”
4.3.3 Hazards related to infeed components and chipping components
Replace clause 4.3.3.2 by th
...