Series
CYP
Model Selection 2
1. Maximum
load mass
2. Static moment
3. Dynamic moment
Selection Calculation
Item
1. Max. load mass
2. Static moment
3. Dynamic moment
Load factor
α
n
α
1
=
m
/
m
max
α
2
= M/Mmax
α
3
= Me/Memax
Note
Review m
m
max is the maximum load mass
Review M
1
, M
2
, M
3
Mmax is the allowable moment
Review Me
1
, Me
3
Memax is the allowable moment
The selection calculation finds the load factors (
α
n) of the items below, where the total (
Σ
α
n) does not exceed 1.
Σ
α
n
=
α
1
+
α
2
+
α
3
≤
1
Item
Load factor
α
n
Note
Review
m
.
Guide central axis
Review M
2
.
Since M
1
&
M
3
are not generated,
review is unnecessary.
Review Me
3
.
Review Me
1
.
Calculation Example
We = 5 x 10
–3
m
⋅
g
⋅
U
= 5 x 10
–3
⋅
1
⋅
9.8
⋅
300
= 14.7 [N]
Me
3
=
1/3
⋅
We (L
2 +
A)
⋅
10
–3
= 1/3
⋅
14.7
⋅
(50 + 27)
⋅
10
–3
= 0.38 [N
⋅
m]
α
3
=
Me
3
/Me
3
max
= 0.38/3
= 0.13
Me
1
=
1/3
⋅
We
⋅
(L
1 +
B)
⋅
10
–3
= 1/3
⋅
14.7
⋅
(50 + 48)
⋅
10
–3
= 0.48 [N
⋅
m]
α
4
=
Me
1
/Me
1
max
= 0.48/3
= 0.16
Σ
α
n =
α
1
+
α
2
+
α
3
+
α
4
= 0.20 + 0.24 + 0.13 + 0.16
= 0.73
Σ
α
n = 0.73
≤
1 Therefore it can be used.
α
1
=
m
/
m
max
= 1/5
= 0.20
M
2
=
m
⋅
g
⋅
(L
1 +
B)
⋅
10
–3
= 1
⋅
9.8
⋅
(50 + 48)
⋅
10
–3
= 0.96 [N
⋅
m]
α
2
=
M
2
/M
2
max
= 0.96/4
= 0.24
Operating Conditions
Cylinder:
CYP32
Mounting: Horizontal wall mounting
Maximum speed: U = 300 [mm/s]
Load mass: m = 1 [kg] (excluding mass of arm section)
L
1 =
50 [mm]
L
2 =
50 [mm]
L
1
L
2
Va
m
Guide shaft
mounting surface
m
L
1
L
2
L
1
B
m
x
g
M
Me
3
We
W
L
1
B
Me
1
W
We
L
2
A
Guide shaft mounting surface
1253
CY1S
CY1L
CY1H
CY1F
CYP
CY3B
CY3R
Individual
-X
D-
-X
Technical
data
P1165-P1262-E.qxd 08.10.3 2:34 PM Page 1253
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
