FLSmidth is a world leader in the development, design, manufacturing and supply of Knelson gravity concentration technology for the global mining and minerals processing industries.

Knelson™ joined FLSmidth in 2011. FLSmidth continues to offer Knelsoncomplete gravity concentration solutions for the gold mining and mineral processing industry. A full range of products and services are available including gravity amenability testing, flowsheet development, circuit engineering, Knelson™ concentrators and supply of turnkey gravity circuits worldwide.

The first prototype of the Knelson concentrator was introduced by founder Byron Knelson in 1978. Since then, it has become an integral component in many of the world's modern and sophisticated precious metal recovery circuits. The equipment boasts over 3000 units installed in over 70 countries worldwide.