BS EN 12301:2000+A1:2008

BS EN 12301:2000+A1:2008 Plastics and rubber machines. Calenders. Safety requirements

BS EN 12301 specifies safety requirements relating to the design and construction of multi-roll calenders intended for the processing of rubber or plastics.

BS EN 12301 concerns the calender alone including all components fixed to its frame. Annex A shows examples of various types of calenders and annex B shows examples of calendaring processes.

The following machines are excluded:

Two-roll calenders forming an integral unit with an extruder (roller head)

Two or three-roll polishing , laminating or embossing units (which are not calenders) installed downstream of extruders in film processing lines.

The following hazards are not dealt with:

Hazards generated by the materials being processed (see informative annex C);

Hazards generated by the processing of explosive materials, or materials which give rise to an explosive atmosphere;

Fire hazards due to ignition of flammable materials by contact with hot parts of the calender (e.g. in case of oil leakage)

Hazards due to electromagnetic, laser or ionising radiation

Hazards generated if the calender is installed in an explosive atmosphere.

BS EN 12301 applies to machinery manufactured after the date of approval of this standard by CEN.

Contents of BS EN 12301:

• Foreword
• Introduction
• Scope
• Normative references
• Terms and definitions
• List of hazards
• Mechanical hazards
• Electrical hazards
• Thermal hazards
• Hazards due to noise
• Hazards generated by neglecting ergonomic principles
• Hazards due to failure of energy supply
• Hazards due to failure of the control systems
• Slip, trip and fall hazards
• Safety requirements and/or measures
• Mechanical hazards
• Electrical hazards
• Thermal hazards
• Hazards due to noise
• Hazards generated by neglecting ergonomic principles
• Hazards due to failure of energy supply
• Hazards due to failure of the control systems
• Slip, trip and fall hazards
• Verification of the safety requirements and/or measures
• Information for use
• Instruction handbook
• Marking
• Examples of different types of calenders
• Examples of calendering processes
• Hazards generated by the materials being processed
• Calculation of dimension L of the trapping zone for rolls of equal diameters
• Fixed guards at the trapping zone
• Example of a particular type of guard with limited movement preventing access to the trapping zone
• Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC
• Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC
• Bibliography