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SECTION 21 -
SPENCER FRANKLIN HYDRACLAMP, HYDRAULICS
AND PNEUMATICS
WDS
WDS
www.wdsltd.co.uk21-27
&
0845 606 66 77
•
:
www.wdsltd.co.uk•
*
sales@wdsltd.co.ukPowRlock OpenRam
Five-Ton Head
SF-5500
45°
65 P.C.D.
BLEED
SCREW
2 x M6 x 8 DEEP
G
K J
H
A
B
C
E
F
D
1/4 B.S.P.
3 1/8 - 16 - UN
* Do not exceed Maximum Stroke
Mounting: To include these heads in a fixture it is only necessary to mount them over 25mm dia. studs or bolts via the hole through the
centre of each head.
Note: Unless otherwise stated assume there are four counter
bored holes equi-spaced on ØB.
Stroke*
Effective
Area cm²
Swept Volume
Dimensions in mm
Weight
WDS No.
Seal Kit
No.
With
Spring
mm
Without
Spring
mm
With
Spring
cm³
Without
Spring
cm³
A B C D E F G H J K
With
Spring
kg
Without
Spring
kg
17.02 31.75 21.23 33.44 67.35 25.8 36.5 50.8 92.1 79.4 25.4 96.8 0.3 0.8 20.6 3.18 3.13 SF-5500 SF-5599
Body/Cap Thread 3
1
⁄
8
- 16 - UN
C
C
A
D
F
E
C
B
GE FOR:
-3525
B
MF-3300MF
A
A
NOTE: All graphs are Rams with Springs fitted.
Graphs are calculated using theoretical pressures and
actual values will be less due to loss in system pressure.
TECHNICAL INFORMATION
-
Max Operating Pressure =
350 BAR (5000 P.S.I)
T
heoretical Thrust (N) =
Oil Pressure (bar) x Effective Area (cm²)
Re
fer to page 21-46 & 21-47 for
more technical information