We shipped 4 units of VFD decanter centrifuges to South America by sea. They are GN new designed GNLW363VFD centrifuge, with the features below:
1 Variable Frequency Drive, when you need to use fixed speed, you can turn to fixed speed button. Pressurized design to help cooling the VFD control panel during working and compact design. 
2 ABB brand electrical components, comply with class I division I standard.
3 stainless steel 304 material bowl and screw
4 Screw protected by tungsten carbide tiles, and have spare tiles
The new design improved the quality a lot compared with the old design.