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Advanced Search
August 2002
| new this month | kitting | specialized industry application technical tip |
Design and Assembly Group Brochure
Need a quick response? Not up to being put on hold? CS Direct is at your service. Click the above link to email us your orders, technical questions, or concerns, and we'll get back to you within 24 hours.
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...utilizing
OMRON's F10 Vision Sensor Omron’s F10 detects patterns (rather than spots, as photoelectric sensors do), enabling a wide range of applications including pattern matching, accurate label placement, printing verification and conformity checks. Common industries include Automotive and Assembly, Packaging, Food and Beverage, and Material Handling. F10 Features:
Click here to view a power point presentation on the F10 application capabilities. (You need WinZip to open up the archive, which can be downloaded at http://www.winzip.com) Contact Fred Cody for more information on Omron Sensing Products. |
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How to determine the right-sized cylinder for your job Specifying the right cylinder for the right job results in better and longer cylinder performance. And that means lower overall operating costs. Proper cylinder size selection begins by calculating 1) the weight of the load, 2) the required velocity, and 3) the air pressure used. Let's take a closer look at each of these three factors. Weight of the load: This is set by the machine design. In order to move the load, you'll obviously need a cylinder that provides force greater than the load. We recommend allowing an additional factor of 25% force over the load to compensate for friction. Velocity: Velocity is also usually set by machine design, but there's usually some latitude within a range. Low speeds (up to 4 in/sec) require 25% more force than the load, moderate speeds (4 to 16 in/sec) about 50% more and high speeds (greater than 16 in/sec) about twice as much. Air pressure: You need consistent air flow at the minimum effective pressure to maintain the desired velocity. Operating the cylinder at too high a pressure accelerates seal wear and creates stress on the cylinder. Inconsistent pressure can cause system malfunction or failure. Next you'll need to determine bore size. Let's look at an example assuming a maximum load of 100 lbs, a minimum velocity of 8 in/sec and a minimum pressure of 60 psi. The velocity is moderate, but the force should be about 50% greater than the load, or 150 lbs. Dividing the force (150) by the pressure (60) gives you a power factor of 2.5. A 2" bore cylinder, with a power factor of 3.1, provides the needed force. You'll also have to consider stroke length, spring force and overall dimensions of the space. But this is only the start. If you'd like the full story on proper cylinder sizing and selection, contact Fred Heimall at fheimall@knottsco.com or call (908) 464-4800 x236. |
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The Knotts Company, Inc.
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