MULTI-JACKBOLT TENSIONING

Superbolt tensioners offer you simple and cost-effective tightening of large size bolts. Your joints can be tightened with high accuracy without requiring specialized skills or heavy tooling.

A wide range of tensioners is available in the standard series, as well as an unlimited capacity to create special designs to meet your unique needs.

MULTI-JACKBOLT TENSIONING

Superbolt multi-jackbolt tensioners (MJTs) take the high preload requirements in large diameter bolting and break it down into manageable torques using the jackbolts threaded through the nut body.

EXPANSION SLEEVE COUPLING BOLTS

Superbolt expansion bolts are truly fitted into the hole due to the radial expansion of the conical bore sleeve.

By design, accurate radial force combined with the known axial clamping load, provides total protection against coupling slippage and thus prevents bolt and hole damage during subsequent removals.

The expansion bolts can be retrofitted to replace traditional interference or force fitted bolts, reliably and cost-effectively.

How it works

By pulling a taper body bolt through a taper bore sleeve, the sleeve expands to completely fill the coupling hole, becoming a truly fitted bolt.

  Advantages

  • Truly fitted bolt with radial expansion
  • Safe, reliable and easy installation and removal
  • No coupling slippage
  • No hole damage or re-machining
  • Easy retrofit package
  • Compact, ergonomic tooling
  • Accurate maintenance scheduling