Shearer 0 Comment

The coal shearer is the only type of power loader that is used in Australia. There are currently four manufacturer’s of shearers in Australian, these being :

  • DBT,
  • Joy Global,
  • Eickhoff,
  • Mitsui Miiki.

A typical shearer can be as long as 15 m and weigh in excess of 90 tonnes. The travelling speeds of shearers in Australia can vary between 10 – 14 metres/minute. However, the speed of shearers are on the increase, and there is now a reported case of 45 metres/minute at Twenty Mile Colliery in the United States.

A typical shearer consists of the following components :

  • Drum or cutting head
  • Ranging arm
  • Self-haulage system
  • Cowls
  • Bretbly cable handler
  • Shearer controls