Mortising and Tenoning Machines: Hazard Identification

Risk management strategy for mortising and tenoning machines which identifies hazards that can expose a worker to the risk of injury, and records the measures used to remove or reduce the level of risk.

The following table is a risk management strategy for mortising and tenoning machines.

Risk management strategy

Hazard identification

Risk factors

Risk control measures


Cutting hazard created by the cutters

  • Exposed section of the chain cutter or chisel
  • Premature start-up of the machine
  • Operator exposing hands in feeding process
  • Chain cutter or chisel for mortising machine is enclosed within adjustable guarding
  • Automatic guard fitted and correctly adjusted for tenoning machine
  • Lock out tag out (LOTO) protocol implemented and maintained
  • Clear workspace is maintained around the machine

Object being thrown by the machine/cutter

  • Timber work piece is lifted off and thrown from the work table during cutting
  • Ensure the timber piece has been securely clamped into place before starting the machine

Manual handling lifting timber piece to work table

  • Variation in material size, shape and weight
  • Long or awkward timber pieces being handled on and off machine
  • Store raw materials at appropriate height to avoid the need for bending or twisting
  • Use a trolley to assist in moving timber piece on and off machine
  • Use a second person to guide a long or large piece from the machine

Slips  trips and falls

  • Obstructed or cluttered work area around the machine
  • Slippery and uneven floor surface
  • Maintain a clear work space in and around the machine
  • Provide non-slip floor surfaces that give a firm foothold

Noise hazard created by machinery operation

  • Cutting action of chain or chisel, and different woods creating varying noise levels when being processed
  • Various machines in the area operating simultaneously
  • Local acoustic dampening to reduce noise levels
  • Hearing protectors used by operator and all people accessing the workshop
  • Warning signs erected in workshop

Crushing from transmission drive

  • Access to internal area of machine
  • Fixed guarding encloses all transmission and associated moving parts
  • LOTO  protocol implemented and maintained

Airborne contaminants

(eg dust and vapours)

  • High speed cutting action
  • Ventilation extraction system poorly maintained
  • Provide and maintain local exhaust ventilation
  • Wear protective personal equipment (PPE) such as face masks
  • Regularly vacuum dust and sawdust
  • Note: Do not use compressed air to remove dust from skin or clothing

SW08360 0816

Back to top