Fluid Power Journal

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Vacuum Measurement

By Dan Pascoe Often missing from a vacuum system is something to measure the vacuum level such as a vacuum switch or a vacuum gauge such as shown in Fig. 1. A vacuum gauge is a low-cost option for troubleshooting and production efficiency. Vacuum pumps are selected based on two fundamental criteria: flow rate and […]

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Vacuum Measurement: A Basic Guide

There is often much confusion with regards to the units used to measure the level of vacuum being generated in an industrial application. This article explains which ones are the most common, their origins, when one should be used instead of another, and how to convert between them. The most common unit of vacuum measurement […]

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Vacuum Pick and Place: High-Speed Cycle Time Reduction

By Dane Spivak, and illustrations by Daniel Pascoe, Davasol Inc. In the world of high-speed factory automation, speed is everything. Manufacturing processes require fast cycle rates to increase output and overall production efficiency. This article discusses strategies to implement in vacuum pick and place applications to minimize production cycle times. There are many contributing factors with […]

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Vacuum Basics

By Richard Throop, CFPS Vacuum often seems like a mystery or “black art,” but vacuum is actually quite simple. When we talk about vacuum, we are talking about operating in the pressure region below atmospheric pressure (14.7 psi absolute at sea level) instead of above atmospheric pressure. The same principles and laws that work within pneumatics, […]

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Basic Vacuum Pump Choice

The consideration of which vacuum pump to select is based on many factors. This article explains the fundamental differences between three very common vacuum pump technologies and offers the user a better understanding of what their selection differences are. More often than not, a vacuum user will replace an existing vacuum pump with the exact […]

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Vacuum Lifting Fundamentals

There is often much confusion with regards to the units used to measure the vacuum level being generated in an application. This article explains which ones are the most common, their origins, where one should be used instead of another, and how to convert between them. The most common unit of vacuum measurement used in […]

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Minimizing Vacuum Leakage

In many vacuum-lifting applications, air leakage is experienced through interconnecting pipe work, porous product materials, or vacuum suction cups that are not properly sealing against the product being handled. Leakage is inversely proportional to the vacuum level of the system, which determines the applicable lifting force of the vacuum suction cups. Increased leakage results in decreased […]

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Vacuum Priming Systems

Walk into just about any private or government-run water pumping station where there is a need to pump water vertically from a lower level to a higher level, and seek out the most neglected and rust-covered piece of the equipment in the plant. You’ve just found a typical vacuum priming system as shown in Fig. […]

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Basic Vacuum Cup Selection – Part 2

There are many types of vacuum cups available from a large range of manufacturers. The primary application of vacuum cups is on automated machinery, such as packaging lines, robotic palletizing, automotive steel stamping, and so on. Selecting the correct vacuum cup for each application is key to enabling the machinery to operate in an efficient, […]

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Vacuum Cup Materials

Vacuum cups are available in a wide variety of compounds or materials, which are chosen based on the application for which they are intended to be used. There are many different compounds, but most of the cups found in use today are made from four fundamental materials. This article will discuss these four materials and […]

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