Cylinder Choice - Uflex UC 69-I Installation And Maintenance Manual

1.5 Cylinder choice

This paragraph shows some examples of application for the correct choice of the cylinder and of its arm
(A). The table below shows the arms for each cylinder with four different sizes (two in inches and two in
millimetres) to approach as much as possible the desired configuration. The necessary torque can be
defined according to the steering half angle (B). The data given are only exemplifying and so they are not
binding.
UC 69-I
UC 116-I
UC 168-I
UC 215-I
UC 293-I
* concerning the maximum helm ngle position allowable and with reference to the arm chosen.
** The maxium torque usually used is the maximum torque that is not generally exceeded at cruising speed.
WARNING
The maximum torque is not the normally used torque but it is the maximum torque allowed calculated with a maximum
thrust, shown in the table on the next page, applied to the corresponding helm arm.
DANGER
Make sure that the cylinder and not the helm reaches the end of stroke.
A
Steering half
Helm arm
angle
150 mm 30°
6" 30°
130 mm 35°
5" 36°
180 mm 30°
7" 30°
150 mm 36°
6" 36°
180 mm 30°
7" 30°
150 mm 36°
6" 36°
230 mm 30°
9" 30°
200 mm 35°
8" 34°
180 mm 30°
7" 30°
150 mm 36°
6" 36°
HYDRAULIC CYLINDERS FOR INBOARD ENGINES
B C
Installation height
at the end of
stroke
130 mm [5.12"]
133 mm [5.22"]
106 mm [4.18"]
102 mm [4.03"]
156 mm [6.14"]
154 mm [6.06"]
121 mm [4.76"]
124 mm [4.87"]
156 mm [6.14"]
154 mm [6.06"]
121 mm [4.76"]
124 mm [4.87"]
200 mm [7.87"]
198 mm [7.80"]
164 mm [6.46"]
168 mm [6.61"]
156 mm [6.14"]
154 mm [6.06"]
121 mm [4.76"]
123 mm [4.84"]
Installation and Maintenance Manual
Maximum torque
normally used to
Maximum torque*
420 Nm
429 Nm
343 Nm
331 Nm
1068 Nm
1053 Nm
825 Nm
844 Nm
1546 Nm
1524 Nm
1194 Nm
1221 Nm
1977 Nm
1962 Nm
1626 Nm
1665 Nm
2709 Nm
2668 Nm
2089 Nm
2136 Nm
-
choose the
cylinder**
210 Nm
215 Nm
172 Nm
166 Nm
356 Nm
351 Nm
275 Nm
282 Nm
516 Nm
508 Nm
398 Nm
407 Nm
659 Nm
654 Nm
542 Nm
555 Nm
903 Nm
890 Nm
697 Nm
712 Nm
page 9
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