Specifications
Heavy-Duty Hydraulic Cylinders
HV2 Series
Catalog HY08-M1140-3/NA
60
www.milleruidpower.com
Miller Fluid Power
Des Plaines, IL
Milton, Ontario Canada
Stroke Data, Stroke Adjusters
PD or
PE
PA
W
INTEGRAL KEY
FA
STOP PIN
SEAL FOR THREADS 1" & UP
D-THREADS
J-
WRENCH
SQUARE
SEAL FOR
1
/2
&
3
/4 THREADS
K (MIN.)
L
PD or
PE
PA
W
INTEGRAL KEY
PT
Stroke Adjusters
Where absolute precision in stroke length is required, a
screwed adjustable stop can be supplied. Several types
are available – the illustration shows a design suitable
for infrequent
1
adjustment at the uncushioned cap end of
a cylinder. Please contact the factory, specifying details
of the application and the adjustment required.
PD or
PE
PA
W
INTEGRAL KEY
FA
STOP PIN
SEAL FOR THREADS 1" & UP
D-THREADS
J-
WRENCH
SQUARE
SEAL FOR
1
/2
&
3
/4 THREADS
K (MIN.)
L
PD or
PE
PA
W
INTEGRAL KEY
PT
Rigidity of Envelope
The prestressed tie rod construction of cylinders has
advantages in rigidity within the limits of the cylinder
tube to resist buckling. For long stroke cylinders within
practical limits. Tie rod supports (see table below) which
move the tie rod centerlines radially outward (patent
number 3011844) are used.
Standard tie rod supports are kept within the envelope
dimensions of the head and cap, and generally do not
interfere with mounting a long cylinder.
Stroke Data
Miller cylinders are available in any practical stroke
length. The following information should prove helpful
to you in selecting the proper stroke for your cylinder
application.
Stroke Tolerances
Stroke length tolerances are required due to buildup of
tolerances of piston, head, cap and cylinder tube. Stan-
dard production stroke tolerances run +.031" to -.015" up
to 20" stroke, +.031" to -.20" for 21" to 60" and +.031" to
-.031" for greater than 60" stroke. For closer tolerances
on stroke length, it is necessary to specify the required
tolerance plus the operating pressure and temperature
at which the cylinder will operate. Stroke tolerances
smaller than .015" are not generally practical due to
elasticity of cylinders. If machine design requires such
close tolerances, use of a stroke adjuster (below) may
achieve the desired result.
Tie Rod Supports
108
2
1
1
—
—
120
2
2
1
1
—
132
3
2
1
1
—
144
3
2
1
1
1
156
3
2
2
1
1
168
4
3
2
1
1
Bore
1.50
2.00
2.50
3.25
4.00
Stroke (Inches)
36
—
—
—
—
—
48
—
—
—
—
—
60
1
—
—
—
—
72
1
1
—
—
—
84
1
1
—
—
—
96
2
1
1
—
—
Number of
Supports Required
Note: 5.00" through 8.00" bore sizes — no supports required.
1
Infrequent is dened by positioning the retract stroke in a couple
of attempts at original machine set-up. The frequent stroke
adjuster is recommended when adjustments may be required
by the end user.
Bore L
Size D J K (Max.)
1.50
1
/2 - 20 0.31 0.94 5.00
2.00
3
/4 - 16 0.44 1.25 8.00
2.50, 3.25
1 - 14 0.63 1.69 9.00
4.00
1
1
/2 - 12 0.94 2.13 18.00
5.00
2 - 12 1.31 2.69 20.00
6.00
2
1
/2 - 12 1.69 3.13 20.00
7.00
3 - 12 2.00 3.25 20.00
8.00
3
1
/2 - 12 2.38 3.50 20.00