Proximity switches affixed to all Peninsular Models ILM aluminum and IMH
steel metric air cylinders
replace externally mounted limit switches, proximity switches and
other externally mounted sensing devices used to indicate the
mid-stroke or 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 both
types of proximity switch technologies mentioned below and has a
proven track record of success with the utilization of this
technology.
Our ILM
cylinder may be
manufactured to incorporate the use of both these technologies
!
Magnetic Piston Sensing Technology
- Tie Rod Mounted Proximity Switch
In-Port Cylinder
Head Mounted
Proximity
Switch Technology
for Mid Stroke Sensing
(NOT Configurable
Herein)
for Near End of Stroke
Sensing
(Configurable
Herein)
Magnetic Piston Sensing Technology
Tie Rod Mounted Proximity Switch
for Mid-Stroke Sensing
(NOT
Configurable Herein - Call Peninsular )
for Model ILM Medium Duty Metric Aluminum
Cylinders Only
Tie Rod Mounted
Proximity Switch
Tie Rod Mounted Proximity Switch
shown affixed to the Tie Rod of our Model ILM Air Cylinder shown
with Cord Set attached
Although this tie rod mounted
proximity switch technology cannot be configured within our configurator,
you maycontact us (see below information) if you want to
order this technology with any Peninsular model ILM or IMH
pneumatic cylinder.
Magnetic piston sensing
consists of a magnet encased around the circumference of a piston
that can be sensed by one or more proximity switches affixed to
the tie rod of an aluminum cylinder. These switches can be affixed
anywhere on the tie rod of the cylinder to sense the cylinder
stroke in any target area, along the cylinder stroke path.
We have conducted significant testing on different kinds of magnet
materials, shunting devices and tie rod mounted proximity switches
to provide the highest degree of assurance for producing reliable
and repeatable tie rod mounted proximity switch actuation for our
model ILM
aluminum
metric pneumatic cylinders. Special rare earth materials are
used for the magnets along with other engineering features that
provide the maximum gauss strength at the surface of the cylinder
tube, thus, providing assurance of “making the switch” on every
stroke of the cylinder. Inductive magnetic proximity switches,
with no moving parts or physical contact inside the switch, are
employed for additional assurance of a reliable and repeatable
high quality sensing system that works harmoniously with all
Peninsular Model ILM aluminum metric pneumatic cylinders. When magnetic piston sensing
is selected, a /M appears in the Peninsular part number once it is
generated by this configurator.
When employing this
technology it is important to know that there are many different
sensing systems engineered into aluminum air cylinders found in
today's marketplace, and it is the users responsibility to make an
informed decision, which entails full knowledge of the
application, when making the cost vs. quality decision for
employing this technology.
Only Peninsular approved inductive magnetic
proximity switches should be used with our model ILM aluminum
metric pneumatic cylinders, the use of any other
proximity switches, not approved by Peninsular, will not be covered by the Peninsular cylinder warranty.
Cord sets are to
be ordered separately and come in various lengths, contact us toll
free
at (800) 526-7968 in the USA or Canada or at (586-775-7211)
or you may email us
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 void our 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
our Model ILM 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 ILM medium duty aluminum air cylinder or our model
IMH
heavy duty all steel metric 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 40mm through 320mm 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
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
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.