Rotary Blowers for Vacuum Applications

By: Stephen Horne

Most router tables that handle sheet goods require vacuum pumps for product hold down. The router table manufacturers often supply vacuum pumps for their tables that range from 15 – 50 hp. It is common that the capacity of the vacuum pump is less than the flow required to maintain the vacuum. When the work piece slips, the assumption is that a pump that can achieve higher vacuum is needed to correct the problem. What is really needed is a vacuum pump with a higher flow capacity. This is especially true with spoiler board applications. Continue reading “Rotary Blowers for Vacuum Applications”

Misuse of Plant Air

By: Michael Camber

In our visits to plants we often find poor uses of compressed air.  Even though our business depends on selling and servicing compressors, we hate to see people running compressors when they don’t need to.  It’s energy wasted, and we devote much human energy to educating customers on saving electrical energy. Continue reading “Misuse of Plant Air”

The Benefits of Adaptive Control Systems

By: Stephen Horne

In municipal and industrial wastewater treatment, there has been a shift from manual to automatic process control in order to increase efficiency and improve effluent quality. An increasingly popular approach includes installing a variable frequency drive (VFD) to constantly adjust the amount of air injected into the process to control dissolved oxygen, NH4, and/or NO3 in the wastewater treatment.  This approach works well from a process control standpoint. The additional benefits include: lower power cost and extended service life of the blowers.  VFDs offer great flexibility, but they have high purchase costs and there are still many applications in which they can be inefficient. Continue reading “The Benefits of Adaptive Control Systems”

Blowers for air knives? Actually, it’s a very good idea.

By: Stephen Horne

Industrial air knives direct air flow toward a product and use the air’s velocity for product drying, cleaning, coating and cooling in many manufacturing and packaging plants. In their most simplistic form, holes are drilled into pipes. Involutes or air amplifier designs are used in more advanced systems. In either case, these applications require high air velocities but not high pressure. Continue reading “Blowers for air knives? Actually, it’s a very good idea.”