HYTORC Nut mechanische tensioner

HYTORC Nut – Mechanical tensioner

The HYTORC NUT tensioning nut is a 3 part pre-tensioning system for applications with a high degree of difficulty. The special construction allows for the bolt to move with the inner nut without shearing, reaction or torsion forces because the nut does not turn on the flange surface. The bolts are 100% mechanically tensioned. The only system in the world that is delivered pre-calibrated to bolt load. No complex and time consuming measurements therefore need to be carried out during assembly. You can work hands-free, without a reaction arm and without a backup wrench.

Applications

HYTORC NUT is especially useful when you are dealing with:

  • Difficulty to achieve the desired accuracy
  • Very high bolt loads
  • Galling bolts
  • Torsion in the bolts, particularly with long bolts
  • Loss of pre-tension load
  • Bolts that are coming loose
  • Limited installation space (see image)

No damage to the supporting surface

The washer does not turn along over the supporting surface, thereby preventing damage and expensive repair costs. Do you have any idea how much impact damage to the supporting surface has on the final pre-tension load in the bolt?

Functioning of HYTORC Nut

The Hytorc Nut consists of three parts: 1. the inner nut, 2. the outer nut and 3. the washer. The outer nut pulls the inner nut upwards axially. This ensures a torsion-free and shear-free connection. All of the friction and movements take place within the Hytorc Nut, which allows for the system to be delivered calibrated. This principle makes the Hytorc Nut the most accurate system in the world.

Specifications

Technical data

Nominal size Outside Ø mm Height (H) mm Max. stretch (T) mm Max. preload kN Drive
- 35,56 33,66 5,00 146 Avanti-1 (T-100)
7/8 35,56 33,66 5,00 146 Avanti-1 (T-100)
1 40,64 38,10 5,72 198 Avanti-1 (T-100)
1 1/8 45,72 42,88 6,45 258 Avanti-1 (T-100)
1 1/4 50,80 47,63 7,14 326 Avanti-1 (T-100)
1 3/8 55,88 52,40 7,87 403 Avanti-3 (T-200)
1 1/2 60,96 57,15 8,59 488 Avanti-3 (T-200)
- 60,96 57,15 8,59 488 Avanti-3 (T-200)
1 5/8 66,04 61,93 9,30 582 Avanti-3 (T-200)
1 3/4 71,12 66,68 10,01 680 Avanti-5 (T-300)
1 7/8 76,20 71,45 10,72 788 Avanti-8 (T-300)
2 81,28 76,20 11,43 906 Avanti-8 (T-300)
2 1/4 91,44 85,73 12,85 1164 Avanti-10 (T-400)
2 1/2 101,60 95,25 14,30 1452 Avanti-20 (T-400)
2 3/4 111,76 104,78 15,72 1606 Avanti-35 (T-600)
- 115,19 108,03 16,21 1760 Avanti-35 (T-600)
3 121,92 114,30 17,15 1926 Avanti-35 (T-600)
- 128,02 120,02 18,01 1990 Avanti-35 (T-600)
3 1/4 132,08 123,83 18,57 2275 Avanti-35 (T-600)
3 1/2 142,24 133,35 20,02 2650 Avanti-35 (T-600)
3 3/4 152,40 142,88 21,44 3059 Avanti-35 (T-600)
4 162,56 152,40 22,86 3493 Avanti-50 (T-900)
4 1/4 172,72 161,93 24,28 3541 Avanti-50 (T-900)
4 1/2 182,88 171,45 25,73 3997 Avanti-50 (T-900)
4 3/4 193,04 180,98 27,15 4446 Avanti-50 (T-900)
5 203,20 190,50 28,58 4949 Avanti-50 (T-900)
5 1/4 213,36 200,03 30,00 5479 Avanti-50 (T-900)
5 1/2 223,52 209,55 31,45 6008 Avanti-50 (T-900)
Nominal size Outside Ø mm Height (H) mm Max. stretch (T) mm Max. preload kN Drive
- 35,56 33,66 5,00 146 Avanti-1 (T-100)
7/8 35,56 33,66 5,00 146 Avanti-1 (T-100)
1 40,64 38,10 5,72 198 Avanti-1 (T-100)
1 1/8 45,72 42,88 6,45 258 Avanti-1 (T-100)
1 1/4 50,80 47,63 7,14 326 Avanti-1 (T-100)
1 3/8 55,88 52,40 7,87 403 Avanti-3 (T-200)
1 1/2 60,96 57,15 8,59 488 Avanti-3 (T-200)
- 60,96 57,15 8,59 488 Avanti-3 (T-200)
1 5/8 66,04 61,93 9,30 582 Avanti-3 (T-200)
1 3/4 71,12 66,68 10,01 680 Avanti-5 (T-300)
1 7/8 76,20 71,45 10,72 788 Avanti-8 (T-300)
2 81,28 76,20 11,43 906 Avanti-8 (T-300)
2 1/4 91,44 85,73 12,85 1164 Avanti-10 (T-400)
2 1/2 101,60 95,25 14,30 1452 Avanti-20 (T-400)
2 3/4 111,76 104,78 15,72 1606 Avanti-35 (T-600)
- 115,19 108,03 16,21 1760 Avanti-35 (T-600)
3 121,92 114,30 17,15 1926 Avanti-35 (T-600)
- 128,02 120,02 18,01 1990 Avanti-35 (T-600)
3 1/4 132,08 123,83 18,57 2275 Avanti-35 (T-600)
3 1/2 142,24 133,35 20,02 2650 Avanti-35 (T-600)
3 3/4 152,40 142,88 21,44 3059 Avanti-35 (T-600)
4 162,56 152,40 22,86 3493 Avanti-50 (T-900)
4 1/4 172,72 161,93 24,28 3541 Avanti-50 (T-900)
4 1/2 182,88 171,45 25,73 3997 Avanti-50 (T-900)
4 3/4 193,04 180,98 27,15 4446 Avanti-50 (T-900)
5 203,20 190,50 28,58 4949 Avanti-50 (T-900)
5 1/4 213,36 200,03 30,00 5479 Avanti-50 (T-900)
5 1/2 223,52 209,55 31,45 6008 Avanti-50 (T-900)