Effects of Overfeeding an Impact Crusher

| Lets start with, don’t over feed the chamber!

Over feeding an impact crusher will actually give the opposite effect of what you are probably trying to achieve. You want greater production right? Then over feeding is not the way to do it. Impact crushers do not run on the choke fed theory. Jaws and cones need to be choke fed as they work on gravity and compression. Where as impact crushers work on actual impact force (inertia) from the rotor blow bars that impacts the rock sends it at speed into the impact aprons. If you are over feeding the chamber you will reduce the rotors ability to throw the rock against the aprons. Along with turning it into a big pepper grinder and eventually stalling out the crusher.

over feeding impact crushers

| Key points to remember when impact crushing

  • Impact crushers do not work on gravity and compression
  • Impact crushers work on actual force (inertia)
  • Over feeding reduces the rotor ability to throw the rock against the aprons
  • The rotor blow bars impacts the rock speed into the impact aprons

So please remember it’s an impactor not a grinder…

| Striker Heavy Duty Impact Crusher Range

HQ907

HQ910

HQ1112

HQ1312

HQR907

HQR910

HQR1112

HQR1312