Peninsular Cylinder Co. - cylinder repair, hydraulic cylinder repair, air cylinder repair, mill cylinder repair, tie rod repair, welded cylinder repair, big bore cylinder repair, pneumatic cylinder repair

Proximity switches affixed to all Peninsular Models IMH steel and ILM aluminum metric air 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 360° 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 IMH 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 IMH heavy duty steel metric air cylinders and our model ILM medium duty aluminum metric air cylinders. Our model LM aluminum cylinders 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 40 mm through 80mm 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 40 mm through 320 mm.

RF INDUCTIVE IN-PORT MOUNTED Proximity Switch Probe Length Dimensions (at one or both cylinder ends)
Bore Size:	40 mm	50 mm	63 mm	80 mm	100mm	125 mm	160 mm	200 mm	250 mm	320 mm
Probe Length:	1.025	1.025	1.025	1.025	1.250	2.062	2.062	2.875	3.775	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:	40 mm	50 mm	63 mm	80 mm	80 mm	125 mm	160 mm	200 mm	250 mm	320 mm
Probe Length:	1.025	1.025	1.025	1.025	1.250	2.062	2.062	2.875	3.775	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.