CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Figure 1. The general arrangement of a three phase waveform.
Computer Numerical Control Machine (CNC) at Nickerson
Bowl wear ring
Model 411 Horizontal Split Case
3800 Series, Single Stage End Suction
Impeller wear ring
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Vertical Turbine Pumps, Deep Well
Frame-mount Centrifugal Pumps
Horizontal Lathe
Custom fabrication to a large part
Horizontal Lathe
Bowl wear ring
SF Series®
Custom shapes cut from raw materials.
Super T Series® Engine Driven
Close-Coupled Vertical Turbine
Ultra V Series® and UltraMate®
Computer Numerical Control Machine (CNC) at Nickerson
Utah Lake Cascade Pump
National Pump Vertical Turbine Pumps, API 610
Utah Lake Cascade Pump
Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Horizontal Lathe
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
