Blades for Robotic Lawn Mowers: When and How Often Should You Replace Them?

The frequency of blade replacement for robot 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 specified 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 Conditions:
  Moist conditions and strong grass growth put additional strain on the blades.

How to tell when blades should be changed?

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

Replacement recommendation:

• Professional robot mowers: 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.