Shavo
Technical Data
STANDARD CYLINDER
COMPRESSED AIR CONSUMPTION

Unit: 1/min
Bore (mm) 12 16 20 25 32 40 50 63 80 100 125 160 200
Rod (mm) 6 6 8 10 12 16 20 20 25 25 32 40 50
Area (mm2)  A 113 201 314 491 804 1257 1963 3117 5027 7854 12271 20114 31400
B 85 173 264 412 691 1056 1649 2803 4536 7363 11309 18857 29437
                   Operating Pressure
(MPa)
0.1 0.040 0.075 0.116 0.181 0.299 0.462 0.722 1.183 1.912 3.042 4.714 7.755 12.168
0.2 0.059 0.112 0.173 0.271 0.448 0.693 1.083 1.775 2.867 4.563 7.071 11.263 18.252
0.3 0.079 0.150 0.231 0.361 0.598 0.924 1.444 2.367 3.823. 6.084 9.428 15.473 24.336
0.4 0.099 0.187 0.289 0.451 0.747 1.156 1.805 2.959 4.779 7.605 11.785 19.331 30.420
0.5 0.119 0.224 0.347 0.542 0.897 1.387 2.167 3.550 5.734 9.126 14.142 23.190 36.502
0.6 0.138 0.262 0.405 0.632 1.046 1.618 2.528 4.142 6.690 10.647 16.499 27.048 42.586
0.7 0.158 0.299 0.463 0.722 1.196 1.849 2.889 4.734 7.646 12.168 18.856 30.907 48.670
0.8 0.178 0.336 0.520 0.812 1.345 2.080 3.250 5.325 8.602 13.689 21.213 34.765 54.754
0.9 0.198 0.374 0.578 0.903 1.495 2.311 3.611 5.917 9.557 15.209 23.570 38.624 60.838
1.0 0..218 0.411 0.636 0.993 1.644 2.542 3.972 6.509 10.513 16.927 25.927 42.482 66.922.
The table is for a complete cycle with 100mm stroke in one minute.

THE METHOD OF CALCULATION ( Compressed Air Consumption )
Qn = ( Aa + Ab ) X L X P + 0.101 X n X 10-6

0.101
Qn : Compressed air consumption (l/min)
Aa : Piston area of (mm2)
Ab : Piston area of (mm2)
L : Stroke of cylinder (mm)
P : Air pressure (Mpa)
n : Cycle of operation (cycle/min)

FLOW RATE CONVERSION CHART
  m3/s l/s cm3/s m3/h m3/min l/h l/min ft3/min (scfm) gallon
min UK
gallon
min USA
m3/s 1 103 106 3.6x106 60 3.6X106 60X103 2.12X103 13.2X103 15.85X103
l/s 10-3 1 103 103 60x10-3 3.6X103 60 2.12 13.2 15.85
cm3/s 10-6 10-3 1 3.6x10-3 60x10-6 3.6 16X10-3 2.12X10-3 13.2X10-3 15.85X10-3
m3/h 0.28x10-3 0.28 0.28x103 1 16.67x10-3 103 16.67 0.59 3.67 4.4
m3/min 16.67x10-3 16.67 16.67x103 60 1 60x103 103 35.31 219.97 264.17
l/h 0.28x10-6 0.28x10-3 0.28 10-3 16.67x10-6 1 16.67x10-3 0.59x10-3 3.67x10-3 4.4x10-3
l/min 16.67x10-6 16.67x10-3 16.67 60X10-3 103 60 1 35.31X10-3 219.97X10-3 264X10-3
ft3/min(scfm) 0.47X10-3 0.47 0.47X103 1.699 28.32X10-3 1.699x103 28.32 1 6.23 7.48
gallon min UK 75.79X10-6 75.77X10-3 75.77 0.273 4.55X10-3 0.273X102 4.55 0.16 1 1.2
gallon min USA 63.09X10-6 63.09X10-3 63.09 0.227 3.79X10-3 0.227X103 3.79 0.13 0.83 1
CYLINDERS' THEORETIC FORCE

Unit: N
Bore (mm) 12 16 20 25 32 40 50 63 80 100 125 160 200
Rod (mm) 6 6 8 10 12 16 20 20 25 25 32 40 50
Area (mm2) A 113 201 314 491 804 1257 1963 3117 5027 7854 12271 20114 31400
B 85 173 264 412 691 1056 1649 2803 4536 7363 11309 18857 29437
                   Operating Pressure
(MPa)
0.1 A 11 20 31 49 80 126 196 312 502 785 1227 2011 3140
B 85 17 26 41 69 106 165 280 453 736 1131 1885 2944
0.2 A 23 40 63 98 161 251 393 623 1005 1571 2454 4022 6280
B 17 35 53 82 138 211 330 561 907 1473 2262 3770 5888
0.3 A 34 60 94 147 241 377 589 935 1508 2356 3681 6032 9420
B 25 52 79 124 207 317 495 841 1361 2209 3393 5655 8832
0.4 A 45 80 126 196 322 503 785 1247 2011 3142 4908 8043 12560
B 34 69 106 165 276 422 660 1121 1814 2945 4524 7540 11776
0.5 A 57 101 157 245 402 629 982 1559 2514 3927 6135 10053 15700
B 42 87 132 206 346 528 825 1402 2268 3682 5655 9425 14720
0.6 A 68 121 189 294 482 754 1178 1870 3016 4712 7363 12064 18840
B 51 104 158 247 415 634 989 1682 2722 4418 6785 11310 17664
0.7 A 79 141 220 343 563 880 1374 2182 3519 5498 8589 14075 21980
B 59 121 185 289 484 739 1154 1962 3175 5154 7916 13195 20608
0.8 A 90 161 251 393 643 1006 1570 2494 4022 6283 9816 16085 25120
B 68 138 211 330 553 845 1319 2242 3629 5890 9047 15080 23552
0.9 A 102 181 283 442 724 1131 1767 2805 4524 7069 11043 18096 28260
B 76 155 238 371 622 950 1484 2523 4082 6627 10178 16965 26496
1.0 A 113 201 314 491 804 1257 1963 3117 5027 7854 12271 20107 31400
B 85 173 264 412 691 1056 1649 2803 4536 7363 11309 18850 29440

THE METHOD OF CALCULATION ( Cylinders' Force)
F = P X A - f
F : Cylinder' force (N)
P : Air pressure (Mpa)
A : Piston (mm2)
f : Friction drag (N)

PRESSURE CONVERSION CHART
  Pa kPa Mpa bar mbar kgf/cm2 cmH2O mmH2O mmHg p.s.i.
Pa 1 10-3 10-6 10-5 10-2 10.2X10-6 10.2X10-3 101.97X10-3 7.5X10-3 0.15X10-3
kPA 103 1 10-3 10-2 10 10.2X10-3 10.2 101.97 7.5 0.15
MPA 106 10-3 1 10 104 10.2 10.2X103 101.97X103 7.5X103 0.15X103
bar 105 10-2 10-1 1 103 1.02 1.02X103 10.2X103 750.06 14.5
mbar 102 10-1 10-4 10-3 1 1.02X10-3 1.02 10.2 0.75 14.5X10-3
kgf/cm2 98066.5 98.07 98.07X10-3 0.98 980.67 1 1000 10000 735.56 14.22
cmH2O 98.0665 98.07X10-3 98.07X10-6 0.98X10-3 0.98 10-3 1 10 0.74 14.22X10-3
mmH2O 9.80665 9.807X10-3 9.807X10-6 98.07X10-6 98.07X10-3 10-4 0.1 1 73.56X103 1.42X10-3
mmHg 133.32 133.32X10-3 133.32X10-6 1.33X10-3 1.33 1.36X10-3 1.36 13.6 1 19.34X10-3
p.s.i. 6894.76 6.89 6.89X10-3 68.95X10-3 68.95 70.31X10-3 70.31 703.07 51.71 1
Top