Brochure

MY1B40
MY1B32
MY1B25
MY1B40
MY1B32
MY1B25
MY1B40
MY1B32
MY1B25
MY1B40
MY1B32
MY1B25
Equivalent load FE at impact
FE = 1.4υa x
δ
x m x g = 1.4 x 300 x x 2 x 9.8 = 82.3 [N]

M1E: Moment
M1E max (from q of graph MY1B/M1
where 1.4
υa = 420 mm/s) = 9.5 [N·m]·······················
M
1E = x FE x Z = x 82.3 x 50 x 10
–3
= 1.37 [N·m]
Load factor
α4 = M1E/M1E max = 1.37/9.5 = 0.14

M3E: Moment
M3E max (from t of graph MY1B/M3
where 1.4
υa = 420 mm/s) = 2.9 [N·m]·······················
M
3E = x FE x Y = x 82.3 x 30 x 10
–3
= 0.82 [N·m]
Load factor
α5 = M3E/M3E max = 0.82/2.9 = 0.28
Operating Conditions
1.Horizontal
mounting
2.Wall
mounting
3.Ceiling
mounting
4.Vertical
mounting
Calculation of Guide Load Factor
W
Work piece
2 kg
Weight
m
20 mm
X-axis
30 mm
Y-axis
Centre of gravity
Z-axis
50 mm
Work Piece Weight and Centre of Gravity
Consult with SMC for wall mounting, ceiling mounting and
vertical mounting types.
Cylinder ····················· MY1B32-500Z
Average operating
speed
υa ··················· 300 mm/s
Mounting orientation ··· Horizontal mounting
Cushion ····················· Air cushion (
δ
= 1/100)
1
Calculation of Load Factor for Static Load
3
Sum and Examination of Guide Load Factors
5
Calculation of Load Factor for Dynamic Moment
4
Load Blocking
2
Mounting Orientation
1
3
1
3
1
3
1
3
1
100
Load Weight Allowable Moment
MY1B/M1 MY1B/M3MY1B/M2
MY1B/m1
10
5
4
3
2
0.5
0.4
0.3
0.1
0.2
20
30
40
50
100
200
300
400
500
1
10
5
4
3
2
0.02
20
30
40
50
1
0.1
0.2
0.3
0.4
0.5
0.05
0.04
0.03
10
5
4
3
2
0.3
0.2
0.5
0.4
0.1
0.06
20
30
40
100
50
200
1
Series MY1B
Model Selection
The following is the steps for selecting the most suitable MY1B series to your application.

m1: Weight
m1 max (from q of graph MY1B/m1) = 27 [kg]·············
Load factor α1 = m1/m1 max = 2/27 = 0.07

M1: Moment
M1 max (from w of graph MY1B/M1) = 13 [N·m]·············
M1 = m1 x g x X = 2 x 9.8 x 20 x 10
–3
= 0.39 [N·m]
Load factor α2 = M1/M1 max = 0.39/13 = 0.03

M2: Moment
M2 max (from e of graph MY1B/M2) = 1.6 [N·m]·············
M3 = m1 x g x Y = 2 x 9.8 x 30 x 10
–3
= 0.59 [N·m]
Load factor α3 = M2/M2 max = 0.59/1.6 = 0.37
Σα = α1 + α2 + α3 + α4 + α5 = 0.89 1
The above calculation is within the allowable value, and therefore the selected model can be used. Select a shock absorber separately. In an actual
calculation, when the total sum of guide load factors
Σα in the formula above is over 1, consider either decreasing the speed, increasing the bore size, or
changing the product series. This calculation can be easily made using the “Guide Cylinder Selection Software”, download it from http://www.smc.eu
x
y
z
x
z
y
x
z
y
x
y
z
W: Work piece
(2 kg)
MY1B32-500
50
30
Z
Y
Y
X
20
m1
X
m1
M1
m1
M2
Y
M1
Z
M1E
FE
M3
Y
M3E
FE
Load weight kg
Piston speed mm/s
50
100
200
40
30
20
10
5
4
3
2
1
100 200 300 400 500 1000 1500
Moment N·m
Piston speed mm/s
100 200 300 400 500 1000 1500
Moment N·m
Piston speed mm/s
100 200 300 400 500 1000 1500
Moment N·m
Piston speed mm/s
100 200 300 400 500 1000 1500
3