Sets out requirements for mechanical power presses that are intended to work cold metal or material partly of cold metal. Does not apply to guillotines, brake presses, straighteners, turret punch presses, extruders, forging presses, compaction of metal powder or printing presses.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Objective
1.3 Referenced documents
1.4 Definitions
2 Hazards
2.1 General
2.2 Risk assessment
3 Safety requirements and measures
3.1 Introduction
3.2 Basic design considerations
3.2.1 Brakes and clutches
3.2.1.1 Fluid power
3.2.1.2 Use of springs
3.2.1.3 Engagement
3.2.1.4 Component failure
3.2.1.5 Heat dissipation
3.2.1.6 Lubricant penetration
3.2.1.7 Influence on function
3.2.1.8 Material accumulation
3.2.2 Presses with part revolution clutches (friction clutches)
3.2.2.1 Capacity
3.2.2.2 Clearances
3.2.2.3 Accumulation of debris
3.2.2.4 Supply failure
3.2.2.5 Use of diaphragms
3.2.3 Presses with full revolution clutches
3.2.4 Hydraulic and pneumatic systems—Common features
3.2.4.1 General
3.2.4.2 Auxiliary equipment
3.2.4.3 Guarding of bowls
3.2.4.4 Foreign matter
3.2.4.5 Piping
3.2.4.6 Pressure drop
3.2.4.7 Support of valves
3.2.4.8 Prevention of pressure build-up
3.2.4.9 Port positioning
3.2.4.10 Capacity of pipes and ports
3.2.4.11 Valve location
3.2.4.12 Manual or mechanical valves
3.2.5 Pneumatic systems
3.2.5.1 Lubrication
3.2.5.2 Silencers
3.2.5.3 Water separators
3.2.6 Hydraulic systems
3.2.6.1 Pressure relief valves
3.2.6.2 Injury prevention
3.2.6.3 Accumulators
3.2.7 Slide adjustment and stroke adjustment
3.2.7.1 Prevention of motion
3.2.7.2 Control identification
3.2.7.3 Adjustment limitation
3.2.7.4 Adjustment locking
3.2.7.5 Stroke prevention
3.2.8 Electrical systems
3.2.8.1 General
3.2.8.2 Emergency stop
3.2.8.3 Two-hand controls
3.2.8.4 Enclosure protection
3.2.8.5 Wiring
3.3 Mechanical hazards in the tools area
3.3.1 General
3.3.2 Safeguarding measures
3.3.3 Limits of protection
3.3.4 Control system category
3.3.5 Access required to more than one side
3.3.6 Safe methods of work
3.3.7 Closed tools
3.3.8 Fixed enclosing guards
3.3.9 Interlocking guards
3.3.10 Control guards
3.3.11 Early opening guards
3.3.12 Presence sensing systems
3.3.13 Preset time
3.3.14 Two-hand controls
3.3.15 Early opening guards
3.3.16 Conditions of interlocking the motor and the clutch
3.3.17 Single stroke devices
3.3.18 Mechanical restraint devices
3.3.19 Other requirements
3.3.19.1 Tool fixing
3.3.19.2 Fastening
3.3.19.3 Manual adjustment locking
3.3.19.4 Feedstock guides
3.4 Control and monitoring system
3.4.1 Control and monitoring functions
3.4.1.1 Safety functions
3.4.1.2 Safety system intervention
3.4.1.3 Special requirements
3.4.1.4 Vibration and shock
3.4.2 Part revolution clutch presses: Redundancy and monitoring of clutch/brake control systems,and overrun monitoring for single cycle use
3.4.2.1 General
3.4.2.2 Provision of interlocking guard
3.4.2.3 Provision of monitoring and redundancy
3.4.2.4 Provision of overrun monitoring
3.4.2.5 Linking of overrun monitoring components
3.4.2.6 Adjustable stroke length
3.4.2.7 Camshaft clutches
3.4.2.8 Cam adjustment
3.4.2.9 Cam discs
3.4.3 Muting
3.4.4 Programmable electronic systems (PES), programmable pneumatic systems (PPS) and safetyrelated functions
3.4.5 Selector switches
3.4.5.1 Provision of selector switches
3.4.5.2 Use of single selector switch
3.4.5.3 Use of additional selector switch
3.4.5.4 Multiple operators
3.4.5.5 Safety related functions
3.4.6 Isolation switch
3.4.7 Position switches
3.4.7.1 General
3.4.7.2 Design
3.4.7.3 Manual feed
3.4.7.4 Use of proximity switches
3.4.8 Control devices
3.4.8.1 Shrouding
3.4.8.2 Emergency stop
3.4.9 Valves
3.5 Toolsetting, trial strokes, maintenance and lubrication
3.5.1 General
3.5.2 Guarding
3.5.3 Trial strokes
3.5.4 Feeder devices
3.5.5 Manual rotation of the crankshaft
3.5.6 Additional control devices
3.5.7 Opening movable guards
3.5.8 Two-hand controls
3.5.9 Limited movement devices
3.5.10 Devices provided for toolsetting
3.5.11 Interfaces
3.6 Other mechanical hazards
3.6.1 Safeguarding drive and transmission machinery
3.6.2 Safeguarding ancillary devices
3.6.3 Ejection hazards
3.7 Slips, trips and falls
3.8 Protection against other hazards
3.8.1 Electrical hazards
3.8.2 Thermal hazards
3.8.3 High pressure fluid ejection hazards
3.8.4 Hazards generated by noise
3.8.5 Hazards generated by vibration
3.8.6 Hazards generated by materials and substances
3.8.6.1 Hazardous substances
3.8.6.2 Use of asbestos
3.8.6.3 Processing hazardous substances
3.8.6.4 Exhaust ventilation design
3.8.7 Hazards generated by neglecting ergonomic principles
3.8.7.1 Posture
3.8.7.2 Controls
3.8.7.3 Lighting
3.8.7.4 Manual handling
4 Information for use
4.1 Marking
4.2 Instruction handbook
Appendix A
A1 Extractor design
A1.1 Clutch engagement
A1.2 Movement limitation
A1.3 Mechanical interlocking
A1.4 Rolling key clutch
A2 Prevention of overrun and fall-back
A2.1 General
A2.2 Interlocking guards
Appendix B
B1 Presses with full revolution clutches
B1.1 Guard gate
B1.2 Guard performance
B1.3 Extractor interlocking device
B1.4 Guard to extractor linkage
B2 Presses with part revolution clutches
B2.1 Hand fed press
B2.2 Early opening guard
B2.3 Automatic feed
Appendix C
C1 Safety distance
C2 Determination of K
C3 Determination of C
C4 System stopping performance
C5 Position of protective devices
C6 Determination of C
Appendix D
D1 Basic features of the eccentric adjustment and rotary cam arrangement
D2 Determination of the position where muting begins
