SH and TSH Preload Systems
Minimum guaranteed preload 80% of bolt yield stress
TSF has designed, developed and patented the SH and TSH preload systems with the following objectives:
- Provide bolted joints with high requirements in preload.
- Provide bolted joints with high requirements in preload and untightening resistance.
ADVANTAGES
- Reduced number of fixation elements with respect to torque control.
- Quick reaching of preload.
- Low dispersion.
- High stability of the preload.
- Low load distribution factor for the fixation element. Lower fatigue range.
- Achieving preload by the use of pressure tables.
- Insensitivity to bending moments.
- No twisting of fixation element.
- Ease of assembly and disassembly.
- Simultaneous assembly of fixation elements. Elimination of elastic interaction of nearer elements.
- Same assembly protocol for all metric sizes.
- Benefits of elongation, without the disadvantages of friction.
- Ease of verification of preload sustention. It enables maintenance actions based on accurate preload readings.
- Multiple reuse of the element. Ease preload reset by assembly process repetition.
- Insensitive to the type of fixation thread or its load due to lack of friction in the tightening process.
- Potential increment of the preload capacity.
- Certified by Lloyds Register.
More info at: https://www.tsftsh.com