Reference

412 Cylinder Force
pressures, such as 22 PSI, the best choice is a Low Force machine. It is important to note that if the pipe
sizes chosen results in a low gauge pressure (less than 100 PSI), the speed of the hydraulic jaws will be
greatly reduced and a smaller fusion machine would be a better choice. A Low Force machine has a
higher hydraulic jaw speed than a High Force machine. The graph shown does not include drag force.
Drag force is the force required to move the pipe once clamped in the machine. In some circumstances
drag can be high, such as a tie-in of two long lengths of pipe.
12”
315mm
10”
280mm
250mm
225mm
200mm
180mm
160mm
150mm
Rolling 412
DynaMc 412 Auto
4”
MACHINES
125mm
4”
100
PSI
60psi
100
PSI
1200
90psi
5,000
1500
PSI
2000
PSI
TracStar 412 Auto
5”
TracStar 412
PitBull 412
6”
TracStar 412
DynaMc 412 HP
DynaMc 412 EP
PitBull 412
6”
Rolling 412
8”
8”
For example: The range of the pipe to be
fused is 4” IPS DR 7 through 12” DIPS DR 7 at 75
PSI interfacial pressure. From this example the
best choice would be one of the Medium Force
machines. They have a reserve of force to
overcome drag.
TracStar 412 Auto
10”
ISO
340mm
TracStar 412
PitBull 412
12”
DIPS
Rolling 412
IPS
TracStar 412 Auto
This graph will aid in the selection of the correct fusion machine cylinder force option. First, select
the range of pipe and DR to be fused in the machine (largest pipe – smallest DR and smallest pipe
– highest DR). Second, select the type of pipe to be fused. The pipe type will determine the correct
interfacial pressure to use. Your pipe manufacturer can help you with this number. Third, use the graph
to determine which machine is best suited for the task. You can derive from the graph, that when using
high interfacial pressures, the best choice is a High Force machine. When fusing at low interfacial
Reference
100
PSI
1200
PSI
1500
PSI
10,000
2000
PSI
1200
PSI
15,000
1500
PSI
reference
20,000
2000
PSI
LOW FORCE
MEDIUM FORCE
HIGH FORCE
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