The horizontal, solid-bowl (decanter) centrifuge from NOXON North America has a variable-frequency drive to supply fully electric drive packages that have the same torque-generating characteristics as units that use hydraulic backdrives. It combines the advances of VFDs with control alternatives and scroll designs to dewater a wide variety of sludges and slurries to higher cake solids concentrations with ideal capture efficiency. Materials of construction are chosen to suit the application, and include high carbon (50W), stainless 304 and 316, all protected with tungsten carbide coatings. 416/843-6500; www.noxon.com.