Helpful Hints - Peninsular Configurator

Model MH  NFPA Pneumatic Cylinders

"Proximity Switches"

Non-Contact Cylinder Position Sensing

Proximity switches affixed to pneumatic cylinders replace externally mounted limit switches, proximity switches and other externally mounted sensing devices used to indicate the near end of cylinder stroke travel in either the extended or retracted position of the cylinder piston rod. Because the customer does not have to incur expenses to design or manufacture the brackets necessary to mount an external switch, cost savings are usually realized. In addition, there is no physical contact of the switch by any moving parts of the cylinder and the switch sensing probe is not subject to external contamination. Because of the above two facts, these switches usually have a much longer life within the manufacturing system where they are placed. Peninsular has extensively tested cylinder head mounted proximity switch technology for the American automobile industry and has a proven track record of success with the utilization of this technology.

 

In-Port Cylinder Head Mounted Proximity Switch Technology

Only Peninsular approved RF output proximity switches are to be used with our cylinders; the use of any other proximity switch , not approved by Peninsular, will not be covered by the Peninsular cylinder warranty. All switches capable of rotating 304° and contain a large mini connector for cord set attachment. Cord sets are to be ordered separately and come in various lengths - contact Peninsular.

Proven and Tested in well over 250,000 Peninsular Air Cylinders since 1988 !

In-Port Cylinder Head Mounted Proximity Switch

In-Port Cylinder Head Mounted Proximity Switch shown

 affixed to the Rear End Cap of a Model MH Air Cylinder

 with Cord Set attached

You may configure your Peninsular cylinder with the switch mounted to either end or both ends of our model MH heavy duty all steel air cylinder or our model LM medium duty aluminum air cylinder. Our model LM aluminum cylinder can be made to utilize magnetic piston sensing as well.

RF (radio frequency) output inductive proximity switches can by integrally mounted to Peninsular air cylinder heads here at Peninsular's factory with the switch probe descending through the cylinder port as a configurable option available to our customers.

Our technology allows the same switch probe length to be used at each cylinder end without the use of shims or spacers underneath the switch. The use of shims and spacers, a common practice in today's cylinder industry, also increases the potential for unreliable switch actuation and repeatability (see drawing #1 and drawing #2 below).  In addition, we incorporate the use of only one proximity switch probe length for 1 ½" through 3 ¼" bore sizes !

Please reference the chart below for proximity switch probe lengths that we use on both ends or either end of Peninsular air cylinders for bore sizes 1 ½" through 14".

RF INDUCTIVE IN-PORT MOUNTED  Proximity Switch Probe Length Dimensions (at one or both cylinder ends)

Bore Size:

1 ½"

2" 2 ½" 3 ¼" 4" 5" 6" 8" 10" 12" 14"

Probe Length:

1.025 1.025 1.025 1.025 1.250 2.062 2.062 2.875 3.775 4.562 4.562

 

Drawing #1  - Traditional Design

A Different Switch Probe Length is often used on the Rear End Cap than on the Front End Cap because both Piston Cushions have different Diameters. This is a Common Practice in Today's Cylinder Industry.

 

Drawing #2  - Peninsular's Improved Design

The same Switch Probe Length is used on both Peninsular Cylinder End Caps because both Precision Machined Piston Cushion Hubs have the same Diameter and Precision Machined Cylinder End Caps are Employed

You may Configure your Peninsular Cylinder using

 this Reliable and Repeatable Technology

RF INDUCTIVE IN-PORT MOUNTED  Proximity Switch Probe Length Dimensions (at one or both cylinder ends)

Bore Size:

1 ½"

2" 2 ½" 3 ¼" 4" 5" 6" 8" 10" 12" 14"

Probe Length:

1.025 1.025 1.025 1.025 1.250 2.062 2.062 2.875 3.775 4.562 4.562


Contact us toll free at (800) 526-7968 in the USA or Canada or at (586) 775-7211 or you may also e-mail us
at  sales@peninsularcylinders.com.

 

Toll Free: 800-526-7968   Phone: (586) 775-7211   Fax: (586) 775-4545
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