BS EN 1870-12:2013
$189.07
Safety of woodworking machines. Circular sawing machines – Pendulum cross-cut sawing machines
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 50 |
This European Standard deals with all significant hazards, hazardous situations and events as listed in Clause 4 which are relevant to pendulum cross-cut sawing, herein after referred to as ‘machines’, designed tocut solid wood, chipboard, fibreboard, plywood and also these materials when covered with plastic edging and/or plastic/light alloy laminates when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse.
This European Standard does not apply to:
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machines for cross cutting logs;
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machines where the saw unit can be rotated about a horizontal axis.
NOTE The requirements of this European Standard apply to all machines whatever their method of control e.g. electromechanical and/or electronic.
This European Standard is primarily directed at machines which are manufactured after the date of its publication as EN.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 8 | Introduction |
| 9 | 1 Scope a) machines for cross cutting logs; b) machines where the saw unit can be rotated about a horizontal axis. 2 Normative references |
| 11 | 3 Terms and definitions 3.1 3.2 |
| 12 | Figure 1 — Example of a pendulum cross-cut sawing machine |
| 13 | 4 List of significant hazards |
| 16 | 5 Safety requirements and/or measures 5.1 General 5.2 Controls 5.2.1 General 5.2.1.1 Safety and reliability of control systems |
| 17 | 5.2.1.2 Use of protective devices 5.2.2 Position of controls 5.2.2.1 Manual machines 5.2.2.2 Semi-automatic machines |
| 19 | Figure 2 — Position of two hand control device on semi-automatic machines 5.2.3 Starting For electrically started machines, see EN 60204-1:2006, 9.2.5.2. The exceptions described with regard to EN 60204-1:2006, 9.2.5.2 are not relevant. |
| 20 | 5.2.4 Normal stopping 5.2.4.1 General 5.2.4.2 Manual machines 5.2.4.3 Semi-automatic machines |
| 21 | 5.2.5 Emergency stop 5.2.6 Workpiece positioning 5.2.7 Mode selection |
| 22 | 5.2.8 Failure of the power supply 5.2.9 Failure of the control circuits 5.3 Protection against mechanical hazards 5.3.1 Stability |
| 23 | 5.3.2 Risk of break up during operation Table 2 — Light alloy saw blade guard thickness and tensile strength 5.3.3 Saw blade fixing and spindle design 5.3.3.1 Saw spindle design 5.3.3.2 Spindle locking |
| 24 | 5.3.3.3 Saw blade flanges Figure 3 — Saw blade flange detail 5.3.4 Braking |
| 25 | 5.3.5 Measures to minimise the possibility or effect of ejection 5.3.6 Workpiece supports and guides 5.3.6.1 Workpiece support |
| 26 | Figure 4 — Workpiece support for manual and semi-automatic machines 5.3.6.2 Workpiece guides |
| 27 | 5.3.7 Prevention of access to moving parts 5.3.7.1 Guarding of the non-cutting area of the saw blade on manual machines 5.3.7.2 Guarding of the cutting area of the saw blade on manual machines 5.3.7.3 Guarding of the saw blade in the rest position on manual machines 5.3.7.4 Guarding of the saw blade and saw unit on semi-automatic machines |
| 28 | 5.3.7.5 Guarding of workpiece positioning mechanisms |
| 29 | 5.3.7.6 Guarding of powered roller tables |
| 30 | Figure 5 — Example of powered roller table guarding 5.3.7.7 Guarding of drives 5.3.7.8 Stroke control for manual machines |
| 31 | 5.3.7.9 Stroke control for semi-automatic machines 5.3.7.10 Limitations on pivoting the saw unit 5.3.8 Clamping devices 5.4 Protection against non-mechanical hazards 5.4.1 Fire |
| 32 | 5.4.2 Noise 5.4.2.1 Noise reduction at the design stage 5.4.2.2 Noise emission measurement |
| 33 | 5.4.3 Emission of chips and dust 5.4.4 Electricity |
| 34 | 5.4.5 Ergonomics and handling Verification: By checking the relevant drawings, measurement and inspection of the machine. 5.4.6 Pneumatics |
| 35 | 5.4.7 Hydraulics 5.4.8 Electromagnetic compatibility 5.4.9 Laser 5.4.10 Static electricity 5.4.11 Errors of Fitting It shall not be possible to fit a saw blade of greater diameter than the largest saw blade for which the machine is designed. Also see 5.4.12, 6.3 and 6.4. Verification: By checking the relevant drawings and inspection of the machine. 5.4.12 Supply disconnection (Isolation) |
| 36 | Where the machine has a hydraulic system, isolation of the hydraulic system shall be achieved either 5.4.13 Maintenance 6 Information for use 6.1 General 6.2 Warning devices |
| 37 | 6.3 Marking Verification: By checking the relevant drawings and inspection on the machine. 6.4 Instruction handbook |
| 41 | Annex A (normative) Impact test method for guards A.1 General A.2 Test method A.2.1 Preliminary remarks A.2.2 Testing equipment A.2.3 Projectile for guards A.2.4 Sampling |
| 42 | A.2.5 Test procedure A.3 Results A.4 Assessment A.5 Test report A.6 Test equipment for impact test |
| 44 | Annex B (normative) Braking tests B.1 Conditions for all tests B.2 Tests B.2.1 Run-up time B.2.2 Un-braked run-down time B.2.3 Braked run-down time |
| 45 | Annex C (normative) Dimensional tolerances of saw spindles |
| 46 | Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC |
| 47 | Bibliography |
