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SECTION 21 -
SPENCER FRANKLIN HYDRACLAMP, HYDRAULICS
AND PNEUMATICS
WDS
&
0845 606 66 77
•
:
www.wdsltd.co.uk•
*
sales@wdsltd.co.uk21-26
WDS
www.wdsltd.co.ukPowRlock OpenRam
Superstroke Head
SF-6120A
45°
50 P.C.D.
BLEED SCREW 2 x M6 x 8
DEEP
OPTIONAL
75
180
28
22
38
29
3/8" B.S.P.
6120A
Stroke*
Effective
Area cm²
Swept Volume
(kg)
WDS No.
Seal Kit No.
With Spring mm Without Spring
mm
With Spring cm³ Without Spring
cm³
44
100
13.47
59.27
134.7
4.84
SF-6120A SF-4377
* Do not exceed Maximum Stroke
Mounting: To include these heads in a fixture it is only necessary to mount them over 20mm 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.
C
C
A
D
F
E
C
B
LANGE FOR:
520-3525
550B
100MF-3300MF
120A
500
700
080A
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