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Trac-Trol ®
Guided Linear Actuators are ideal when an application requires a
load bearing system to be self guided and self supported. As the
piston is pushed in one direction, the load is pulled in the
opposite direction within the length of the cylinder. Effective
piston area is greater that conventional rod cylinders and there
is equal force in both directions.
Guided linear actuators, also called guide cable cylinders, can
be configured to a variety of positions and ports along with a
wide selection of Accessories including Automatic Tensioners,
Reed Switches, Shock Absorbers, Stainless Steel Guide Rods,
Rulon Bearings and More.
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Trac-Trol®
combines linear ball bearings in a trolley which runs on hardened
and ground shafts.
SUPPORTED TRAC-TROL®
SHOWN
(MODEL TS)
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MODEL 10 |
1" BORE |
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MODEL 15 |
1 1/2" BORE |
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MODEL 20 |
2" BORE |
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MODEL 25 |
2 1/2" BORE |
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MODEL 40 |
4" BORE |
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MODEL 50 |
5" BORE |
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MODEL 20P |
2" BORE HIGH PRESSURE |
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MODEL 25P |
2 1/2" BORE HIGH PRESSURE |
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FEATURES
- Air or hydraulic service for smooth operation and precise
control.
- Nylon-covered, aircraft-type cable for extra long life.
- Optional low cost rod & cable wipers.
- Extremely small effective sealing area compared to band
cylinders for longer working life and ideal
- for use in “dusty”
applications.
- Greater bearing surface for larger capacities.
- Reed switches available.
- Aluminum hardcoated tubes standard or optional steel tube
(special plating available).
- Pre-delivery testing and “break-in” to insure customer
satisfaction.
LUBRICATION
Generally speaking TRAC-TROL®
trolleys don’t need lubrication. To insure maximum life, all
pneumatic
cylinders should be supplied with filtered and lubricated
air
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LOADING Many applications of the TRAC-TROL® cable
cylinder involve mounting some of the weight off the side of the
unit. To be certain the correct size TRAC-TROL® is used in your
specific application use the following equations to compare the
calculated load to the curves on the Load vs. Stroke graph which
shows the maximum load allowed for a given stroke. Do not exceed the
maximum load limit.
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LOAD = Fs + Fp Where Fs = Reaction force due to
side loads.
Fp = Reaction force due to push/pull loads.
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DIMENSIONAL DATA
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MODEL 15, 20, 20P, 25, 25P, 32, 40 and 50
NON-SUPPORTED
NOTE: FOR MODEL 15 TRAC-TROL ®, REED SWITCH
OPTION INCREASES OVERALL LENGTH BY 2".
NOTE: Dimension TT may be larger than dimension AA. Dimension Z
is mounting hole location.
Dimensions in inches.
Tolerance on Overall Length is + 1/16"
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MODEL 10 TRAC-TROL®
SUPPORTED
MODEL 15, 20, 20P, 25, 25P, 32, 40 & 50
SUPPORTED
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SUPPORT SPACING (All Other Models)
Determine the number of supports for given stroke length by
subtracting “KK” from the stroke length, then divide by 24.
(Stroke - “KK”) ÷ 24 = number of supports
(Round to nearest whole number)
From the head mounting holes, the first support is located by the
following:
Stroke + U - ((number of supports - 1) x 24) = Hole
location
of first support
2Other supports are spaced 24" apart.
SUPPORT SPACING (Model TS10 only)
Determine the number
of supports for given stroke length by subtracting “KK” from the
stroke length, then divide by 12.
(Stroke - “KK”) ÷ 12 = number of supports
(Round to nearest whole number)
From the head mounting holes, the first support is located by the
following:
Stroke + U - ((number of supports - 1) x 12) = Hole location
of first support
2
Other supports are spaced 12" apart. |
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LOADING — MAXIMUM LOADS —
Horizontal Mounting
MODEL TS15 - 266 lbs. MODEL TS20 & 25 - 450 lbs.
MODEL TS20P, 25P, 32 & 40 - 750 lbs.
IMPORTANT! With inverted
mounting, maximum load is one half the horizontal mounting
maximum load.
Many applications of the TRACTROL® cable cylinder involve mounting
some of the weight off
the side of the unit. To be certain the correct size TRAC-TROL ® is
used in your specific
application use the Fs + Fp equations to see if the calculated load
falls beneath (under) the
maximum load limit. Do not exceed the maximum load limit.
TRAC-TROL Shock Absorber (A)
Package
AVAILABLE ON TRAC-TROL ®
MODELS 10, 15, 20, 20P, 25, 25P, 32, 40 & 50
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The internal cushions, standard on all GREENCO cylinders, are an
effective
method to decelerate loads, and minimize harmful shock loading at
the end of
each stroke.
In very high speed applications, cushions may be overloaded and
shock
absorbers are necessary.
The GREENCO External Shock Absorber Package is a highly
effective
way to minimize
shock loading in a wide variety of applications (refer to chart).
Additionally,
the package utilizes (2) two fully adjustable, mechanical stops to
vary stroke
length as may be required by the application.
SHOCK PACKAGE CONSISTS OF: 2-shock absorbers, 2-shock
mounting blocks, 2-
stop collars, 2-locknuts and 2-adjustable stops.
IMPORTANT - some applications may exceed shock design
limits and could
require a special orifice or non-standard shock absorber. Consult
Factory.
EXAMPLE - application requiring a TRAC-TROL ® model 15
with
100 PSI, and a payload
weight of 80 lbs. Referring to the sizing chart you would find
80
lbs.
on the vertical axis and move across until you intersect
with model
15
line curve, from this intersection move toward the horizontal axis
of the
chart which tells you the maximum velocity allowed at impact (5.3
fps).
Shock operating temperature 32O -150O F. At maximum loads cycle
rates must be
limited to 30 hits per minute on model 10 and 17 hits per minute on
models 15, 20,
25, 32, 40 and 50. Cycle rates increase with lower loads.
NOTE - Shock Package Adds to Cylinder O.A.L.
MODEL INCREASE IN O.A.L.
T10
......................................................................5.00"
T15, TS15
.............................................................5.375"
T20, T25, TS20, TS25..............................................5.125"
T20P T25P, T32, T40, TS40,TS20P, TS25P, TS32 ........6.06"
T50
......................................................................6.75"
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