February 2002

This new bracket from 80/20 loads from the T-Slot face and doesn't require fasteners for mounting. It is made of clear, anodized 6105-T5 aluminum and is strong, and quick and easy to use.

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This new connector provides a strong internal 90° connection. It is compatible with the 15 and 40 series, and also made from 6105-T5 aluminum, like the Drop-In Panel Bracket.

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E-Con is a single-axis positioner designed for economy and ease-of-use. It is intended for simple, point-to-point motion, and is compatible with most Intelligent Actuator Cartesian actuators.

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The new VP51 is programmable, so it can match your application requirements via the keypad and display. Features include: pressure units, analog or switch mode with internal feedback monitor signal, speed and calibration settings.

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This design change takes effect immediately, and is necessary to implement use of the new M/50 Series of reed and solid-state switches. The M/50 Series switch is a smaller, more compact switch, which is installed into the Lintra extension, without use of a bracket.The switch fits flush to the side of the Lintra profile and is locked in place with a setscrew that is included.

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The CJ1-H offers faster processing, improved instruction performance, doubled system bus speed, improved I/O refresh rate, and many more features. These controllers pack large- and medium- sized rack capabilities into a micro size housing.

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The CS1-H provides increased speed, doubled system bus speed, fast execution of frequently used special instructions, highly responsive parallel processing, and more.

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SMARTSTEP offers a streamlined feature set and outstanding performance for many basic positioning applications. It works very well with Omron's CJ1 and CS1 single and multi-axis position control (NC) modules, as well as with legacy PLC positioning modules.

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The purpose of estimating air consumption of cylinders is to find the required horsepower of the compressor that is needed for the cylinders to operate continuously, and may also be used to properly size valves, fittings , and tubing requirements.

EXAMPLE: 4" BORE CYLINDER 2" STROKE - Operating pressure 80 psig, 20 cycles per minute.

The following formula applies: R² x 3.14 x stroke length

•R = The radius of the bore (in this case it's 2); 2² x 3.14 x 2 = 25.12 cubic inches

•1 cubic foot = 1728 cubic inches; divide 25.12 by 1728 = .0145 cubic feet

You need to then find the compression factor. This will give you the actual cubic feet at pressure.

Assume that we are at sea level (14.7 psia) Formula: Gauge pressure + 14.7 / 14.7 = compression factor

•In our example: 80+14.7= 94.7; 94.7/14.7 = 6.44

•Multiply compression factor by cubic feet = actual cubic feet at pressure .0145 x 6.44 = .09 ft³

•Multiply ft³ x 2 for a double acting cylinder (extend and retract). .09 x 2 = .18 ft³ per cycle

•Multiply number of cycles per minute to give you cubic feet per minute: 18 x 20 = 3.6 cfm @ 80 psig

As a rule of thumb for estimation purposes 1 HP = 4 cfm @ 100 psig. So, for this example, to operate correctly we would need an air compressor with a minimum of 1 horsepower.

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This site was last updated: September 30, 2002 8:14 AM