Impact Crusher Maintenance vs Performance Benefit

Crushers work in tough conditions, with high force, over long periods.  This machinery is tough but it is not indestructible.  It needs to be looked after on a scheduled basis and be observed periodically for anomalies whilst operating.  Your impact crusher needs maintenance or the financial cost and loss of production costs will negatively affect your project budget.

Regular inspections by operators of their impact crusher will bring about a thorough understanding of their particular machine’s performance.  It will also result in their crusher performing for longer periods with rare unscheduled downtime.

Setting up and adhering to a maintenance plan always increases the lifespan of machinery. The maintenance plan should be aligned to the manufacturer’s recommendations.

Maintenance Plans Of Impact Crushers

Most maintenance plans of such machines follow a 40-hour schedule post commissioning with follow-ups at 250 hours.  Within these periods, operators need to:

  • Checking air filters and ensure maximum ventilation.
  • Ensure contaminates have not entered the breather.
  • Check strainer baskets on a cone crusher for wear or damage.
  • Update grease on bearings.  This assists with cooling bearings.

Maintenance plans and daily inspections have huge benefits to crushers and avoid the common outcome of premature bearing failures.

Operators Actions

Operators can extend the service life of crusher wear parts by ensuring the worn parts are fastened properly. If the jaw dies while moving during operation, the frame can be damaged. Loose liners in cone crushers damage the head or bowl.

Operators should look for holes, cracks, or flat spots, regularly to avoid long term damage. Operators should also track tonnages.  With cone crushers, the operator should thread the bowl inwards as the liner wears, reducing the feed opening.  This does decrease crusher throughput so when reduced throughput cost is greater than the liner cost it’s time to replace it.

Operators should also determine the cost of production stoppage versus replacing a worn part.  A damaged rotor tip might endure a shift, not requiring downtime whereas a broken jaw dies with parent steel exposed requires stoppage and a replacement.

Worn parts can increase wear on an entire machine leading to expensive failures. A common misconception is that jaw dies should wear until completely flat.  This may be causing unnecessary stress to the jaw frame.

Machine Advances

Cone crushers are now designed with advanced hydraulic systems to raise, lower and adjust them with minimal effort. This removes manually clearing by hand, straps, chains or rolling stock.

Crushers are designed with self-protecting features to achieve quality mechanical reliability and team safety under severe operating conditions.


Proper maintenance delivers profitable performance, longer machine lifespans and fewer anomaly costs. Seek expertise to create and execute the best maintenance plan for your impact crusher. Skilled service teams can provide professional on-site training for operators.

Contact our Mormak skilled team for advice or training on impact crushers or other crushers that will give your production the best results at the best price.