Decanter centrifuge is a very normal machine for drilling mud treatment and for different type of waste management, like waste oil treatment, waste water treatment, and sand purification.
For different materials and different treating purpose, operator should choose the most suitable separation speed and G force in order to get the best performance and separation result. In this case, the variable frequency control of a decanter centrifuge is necessary.
GN Solids Control is a worldwide famous brand for drilling mud treatment and variable type waste management application. GN company offer different solutions to get the variable speed control of a centrifuge. Below is a general idea of the most normal 3 designs. Operator can compare and choose the most suitable design per his demands and the job site condition.

1) The most simply type variable speed control is Mechanical gearbox drive decanter centrifuge. For this kind of centrifuge, operator can get another fixed speed by using a different size of pulley. It is simply for operation and maintenance, and cost effective. And the mechanical gearbox drive centrifuge is especially suitable for high temperature like desert. If the jobsite is only need to use a few speeds, and it does not need to change speed frequently, the Mechanical gearbox drive variable speed decanter centrifuge is more suitable.

2) Another luxury variable speed centrifuge design is fully hydraulic drive centrifuge. The FHD centrifuge changes speed from the hydraulic drive system. The hydraulic drive system is suitable for high temperature area. But as you know, the hydraulic system itself is complex for operation and maintenance. And it is cost higher.
3) Another popular design of Variable frequency Drive (VFD) decanter centrifuge is changing speed through the speed of motor. They use frequency drive to change the speed of the motors to get different separation speed.

For more information of GN variable speed control decanter centrifuge technology, welcome you contact GN group with its 7 by 24 hours services center: This email address is being protected from spambots. You need JavaScript enabled to view it.