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SUPERBOLT
SUPERBOLT MULTI-JACKBOLT TENSIONER
Superbolt was the world’s first to revolutionize nuts and bolts
withthe multi-jackbolt tensioner (MJT) in 1984. Since then, Superbolthas proven
its technology in tens of thousands of successfulinstallations.
Superbolt tensioners are designed as direct replacementsfor
conventional nuts and bolts.
These devices can bethreaded onto a new or existing bolt, stud,
threaded rod orshaft. The main thread serves to position the tensioner
onthebolt or stud against thehardened washer and the loadbearingsurface. Once
it is positioned, actual tensioning ofthe bolt or stud is accomplished with
simple hand toolsby torqueing the jackbolts which encircle the main thread.
The jackbolts transfer the preload evenly into the mainthread
and, consequently, onto the joint. The main threadis tightened in pure tension.
Advantages
- Tremendous
clamping force available
- Low torque
requirement – only hand tools needed
- Safe method
for installation personnel
- Quick
installation and removal
- Tightens
stud/bolts using pure tension
- Tensioner
flexibility adds elasticity to studs/bolts to create a better bolted joint
- Fits in
restricted areas
- Provides
even tension from stud to stud
- Accurate
within 10% of specified bolt tension
