Specification table – Enerpac STB-Series User Manual
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DANGER: Do not handle pressurized hoses. Escaping
oil under pressure can penetrate the skin, causing
serious injury. If oil is injected under the skin, see a
doctor immediately.
WARNING: Only use hydraulic cylinders in a coupled
system. Never use a cylinder with unconnected
couplers. If the cylinder becomes extremely
overloaded, components can fail catastrophically causing
severe personal injury.
WARNING: BE SURE SETUP IS STABLE BEFORE
LIFTING LOAD. Cylinders should be placed on a flat
surface that can support the load. Where applicable, use
a cylinder base for added stability. Do not weld or
otherwise modify the cylinder to attach a base or other support.
Avoid situations where loads are not directly centered
on the cylinder plunger. Off-center loads produce
considerable strain on cylinders and plungers. In
addition, the load may slip or fall, causing potentially dangerous
results.
Distribute the load evenly across the entire saddle
surface. Always use a saddle to protect the plunger.
IMPORTANT: Hydraulic equipment must only be
serviced by a qualified hydraulic technician. For repair
service, contact the Authorized ENERPAC Service
Center in your area. To protect your warranty, use only
ENERPAC oil.
WARNING: Immediately replace worn or damaged
parts by genuine ENERPAC parts. Standard grade parts
will break causing personal injury and property
damage. ENERPAC parts are designed to fit properly and
withstand high loads.
3.0 SPECIFICATIONS (see Specification Table)
4.0 BENDER ASSEMBLY (see Figure 1)
1.
Thread hydraulic cylinder into cylinder support block on
bending frame.
2.
Attach hose(s) to pump valve. Connect hose (1) to cylinder
port (1); hose (2) to cylinder port (2). NOTE: hose (2) is used
with STB-202 series benders only.
3.
Select bending shoe for pipe to be bent. Each shoe is marked
for size and has an arrow, indicating the center point of bend
to be made.
4.
Insert and lock selected bending shoe on cylinder plunger
with U-shaped lock pin.
Figure 1, Bender Assembly
®
Hydraulic Hose (bend)
Bending
Shoe
Hydraulic hose (eject)
(STB202 series)
Pivot Pin
(2 req’d.)
Shoe
Locking Pin
Bender Frame
Optic Angle Gauge
Over-bend
Correction
Holes
Pivot Shoe
(2 req’d.)
Hydraulic Cylinder
Cylinder Support Block
Pipe Eject Holes
Pipe Bending
Holes
Nomenclature
Step A – Bender Assembly
Nominal
Wall
Schedule
Pipe STB-101
STB-101
STB-101
pipe
Thickness
Pipe*
Bend
1-2
size
Radius
One Shot
(outside ø)
1/2
-2
2
1/2
-4
1
1/4
-4
(in)
(in)
(in)
One Shot
Sweep
One Shot
.109
40
Yes
-
-
.147
80
Yes
-
-
.187
160
2
7/8
WS
-
-
.294
160
WS
-
-
.113
40
Yes
-
-
.154
80
4
Yes
-
-
.218
160
WS
-
-
.308
DEH
WS
-
-
.133
40
Yes
Yes
-
.179
80
Yes
Yes
-
.250
160
WS
WS
-
.358
DEH
-
WS
-
.140
40
Yes
Yes
Yes
.191
80
Yes
Yes
Yes
.250
160
WS
WS
Yes
.342
DEH
-
WS
WS
.145
40
Yes
Yes
Yes
.200
80
Yes
Yes
Yes
.281
160
WS
WS
Yes
.400
DEH
-
WS
WS
.154
40
Yes
Yes
Yes
.218
80
Yes
Yes
Yes
.343
160
-
WS
Yes
.203
40
-
Yes
Yes
.276
80
-
WS
Yes
.375
160
-
WS
Yes
.216
40
-
Yes
Yes
.300
80
-
WS
Yes
.226
40
-
Yes
Yes
.318
80
-
WS
Yes
.237
40
-
Yes
Yes
.337
80
-
-
Yes
*Schedule pipe: 40=standard; 80=extra heavy; 160=double extra heavy (mild
steel pipe only)
DEH=double extra heavy (slightly thicker than 160);
WS=can be bent by moving pivot shoes to the holes for the next large pipe size.
1
⁄
2
(.840)
2
7
⁄
8
5
1
⁄
8
4
6
7
⁄
16
7
5
⁄
16
8
5
⁄
16
9
1
⁄
2
11
1
⁄
4
15
1
⁄
2
17
3
⁄
4
3
⁄
4
(1.050)
1
(1.315)
1
1
⁄
4
(1.660)
1
1
⁄
2
(1.900)
2
(2.375)
2
1
⁄
2
(2.875)
3
(3.500)
3
1
⁄
2
(4.000)
4
(4.500)
Specification Table