Benefits

• Long wear part life
• Low operational and maintenance costs
• Short shutdown for wear part replenishment
• Up to 20-30% reduced energy consumption

Features

• Avanced skew control
• Tramp control
• Gabled frame for easier maintenance

The HPGR, developed by FLSmidth, ranks among the most advanced and efficient crushing units available. HPGR equipment is a modern and very energy-efficient comminution technology. During its relatively short history, HPGR technology has undergone significant development with machine roll wear surfaces & control philosophy.

In high-pressure grinding roller comminution the feed material is exposed to very high pressure for a short time. The high pressure causes the formation of microcracks in the feed particles and generates a substantial amount of fine material.

The pressed material can be fed directly to a given size ball mill, making it possible to increase the throughput of a given size ball mill and reduce the specific power consumption of the whole mill system.

If HPGRs are run correctly ball mills can be downsized and use smaller grinding media which will reduce steel ball consumption in the BM circuit substantially.

HPGR also promotes micro fracturing to expose minerals encased within the particular ore which increases liberation via recovery.