Blades / Knives

How often should blades be changed?

The frequency of blade replacement for robotic lawnmowers depends on several factors – particularly the lawn area, usage, and external conditions.
Generally, the blades should be changed every 1 to 3 months. In some cases – as also stated by Husqvarna – replacement may be necessary sooner or later.

Factors influencing blade lifespan:

  • Lawn area:
    The larger the area, the more frequent replacement is required.
  • Usage:
    Frequent use leads to faster wear.
  • External conditions:
    Stones, branches, or other obstacles on the lawn shorten blade life.
  • Weather:
    Wet conditions and strong grass growth put additional strain on the blades.

How to tell if the blades should be changed:

  • The cut is uneven, the grass tips appear frayed or turn brown.
  • The robotic lawnmower becomes significantly louder when mowing – a sign of dull blades.

Replacement recommendation:

  • Professional robotic lawnmowers: every 2 to 6 weeks
  • Privately used models: every 1 to 3 months
  • EdgeCut mowing discs: every 9 to 12 weeks

Additional tips for longer durability:

  • Regularly remove foreign objects: Clear stones, branches, or leaves from the lawn.
  • Adjust mowing frequency: Take breaks during wet weather or strong growth.