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Noise management data sheets: circular saw (fixed)

Contents

  1. Introduction
  2. Maintenance
  3. Noise control
  4. Operator control
  5. Alternatives

1. Introduction

Circular saws are widely used for sizing timber prior to machining. Large panel saws are used for cutting chipboard, ply and melamine coated material. The noise level produced by this equipment is influenced by the types of blade used and the hardness of the material being cut. Noise levels produced by fixed circular saws can be in excess of 100 dB(A). Hearing protection is recommended.

2. Maintenance

  • Maintain tool in good operational condition, replacing worn bearings and belts.
  • Tighten any loose parts such as belt and blade safety guards.
  • Ensure that the saw is firmly bolted in place and free from vibration. Always mount such tools on a concrete floor, as timber floors tend to vibrate.
  • Keep blades sharp
  • Use the correct type of blade with teeth spacings to suit the task.   

3. Noise control

  • Use quieter saw blades
  • Use saw in areas isolated for the purpose, such as a machine room.
  • When mounted on a wooden floor use rubber mountings  under the machine. 

4. Operator control

  • Feed in timber gently, letting the blade cut at its own speed. Keep the timber flat against the bed of the saw and avoid twisting motions. Use gentle pressure and allow the blade more time to cut. This also extends blade life.
  • If the noise level of saw is known, schedule work so not to exceed the daily exposure standard.

5. Alternatives

  • Investigate alternative methods for performing the work.
  • For small jobs use a sharp hand saw to lessen noise exposure.
  • If the noise levels produced by the saw are less on softwoods than hardwoods, use softwoods if practicable.
  • Use pre cut timber (order the correct size). 

Adapted from the Noise Control Manual for Schools with the permission of the Education Department of Western Australia. 

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