Specifications
Compact Hydraulic Cylinders
Series CHD
Catalog HY08-M1137-3/NA
21
www.millerfluidpower.com
Miller Fluid Power
Des Plaines, IL
Milton, Ontario Canada
Rod
Ø
Piston Rod
Weight per mm
12
0.001
14 0.001
18 0.002
22 0.003
28
0.005
36 0.008
45 0.012
Bore
Ø
Rod
Ø
Double Rod Cylinders
Basic Weight at Zero Stroke Per
mm
Stroke
Basic Weight
at Zero Stroke
Per
mm
Stroke
Basic Weight
at Zero Stroke
Per
mm
Stroke
T TN A, M AN, MN
J C CN
20 12
0.60 0.61 0.64 0.65 0.013 0.87 0.014 - - -
25 14 0.83 0.85 0.87 0.89 0.017 1.21 0.018 0.75 0.77 0.016
32 18 1.46 1.48 1.52 1.54 0.026 1.98 0.027 1.47 1.50 0.028
40 22 1.97 2.01 2.08 2.11 0.032 2.92 0.034 2.03 2.07 0.036
50 28 2.81 2.87 2.99 3.05 0.041 4.40 0.043 3.02 3.08 0.049
63 36 4.52 4.61 4.75 4.83 0.055 6.53 0.059 5.10 5.19 0.071
80 45 7.99 8.12 8.28 8.42 0.080 11.5 0.085 - - -
Model Ordering Code for CHD
Standard Specifications
• 13 Standard mounting styles
• Bore sizes – 20mm to 80mm
• Piston Rod Diameter – 12mm to 45mm
• Single and double rod construction available
• Strokes up to 100mm depending on bore size
(see table above)
• Working pressure up to 207 bar
• Temperature range – -23°C to +121°C
(depending on seal class)
• Reference ISO 16656: 2004
Seal Classes
1 – Standard
Nitrile & Polyurethane
5 – Optional (At extra cost)
Fluorocarbon Seals
Typical Fluids
Hydraulic Oil, MIL-H-5606 Oil
High Temperature
Note: Class 5 seals are not suitable for use with Skydrol fluid, but can be used with hydraulic oil if desired.
Temperature Range
-23°C (-10°F) to +74°C (+165°F)
-23°C (-10°F) to +121°C (+250°F)
Class 5 seals may be operated up to +204°C
(+400°F) with reduced service life
32 T CHD B T 9 A 25
Bore
Size
Double
Rod
Cylinder
Mounting
Style
Series
Piston
Ports
Seals
Special
Modification
Piston
Rod
Thread
Style
Piston
Rod
Thread
Style
(For Dbl.
Rod)
Piston
Rod
Thread
Type
Stroke
Specify:
(Bore
size in
mm)
20
25
32
40
50
63
80
Use “K”
only if
double
rod
cylinder
is
required.
Specify:
T = Std. Mount
TN = Std. Mount
with pilot gland
TR = Std. Mount
with cap pilot
A = Imperial thread
tapped both ends
AN = Imperial
tapped with pilot
gland
AR = Imperial
tapped with cap pilot
M = Metric thread
tapped both ends
MN = Metric tapped
with pilot gland
MR = Metric tapped
with cap pilot
C = Foot Mount
CN = Foot Mount
with pilot gland
J = Head Rectan-
gular Flange
H = Cap Rectan-
gular Flange
CHD
Specify:
B = Non-
mag-
netic
piston
Specify:
T = SAE
Ports
U =
NPTF
Ports
R =
BSPP
Ports
M =
Manifold
Ports
1
Leave
blank
for std.
Nitrile
Seals
V =
Fluoro-
carbon
Use
“S” for
Special
Modifi-
cation
other
than rod
end, and
specify
modifi-
cation.
Specify:
4 = Small
Male
8 = Inter-
mediate
Male
9 =
Female
55 =
Flange
Coupler
3 =
Special
2
Specify:
4 = Small
Male
8 = Inter-
mediate
Male
9 =
Female
55 =
Flange
Coupler
3 =
Special
2
Specify:
A =
Imperial
(UNF or
UNC)
M =
Metric
3
Specify
Stroke
Length
Required
in mm
4
.
Shaded boxes identify required model number
fields.
1
Manifold ports are only available on Foot
Mounting Styles C & CN.
2
To order thread style 3, specify “3” and give the
desired dimensions for KK, A, and W (or WP
depending on mounting) or furnish a
dimensioned sketch.
3
Always use M for rod style 55.
Strokes in 1mm increments are available.
Bore
Ø
Stroke
in mm
20
50
25
50
32
100
40 100
50 100
63 100
80 100
Model Code & Standard Specifications
4
Maximum Stroke