A bolt tensioner is a hydraulic hollow cylinder with an internally threaded piston which is attached into a bolt.
The THD bolt tensioners feature same characteristics as those of the THS series, although they have a double cylinder for use where space is tight.
The application of a hydraulic force to the cylinder stretches the bolt.
Working pressure: 1.500 kg/cm2/21.430 psi.
The supporting ring of the bolt tensioner has an opening for an easier tightening operation.
Reference | Metric Thead | Stroke (mm) | Effective area (cm2) | Weight (kg) |
---|---|---|---|---|
THD-20 | M-20 | 8 | 24.83 | 5 |
THD-22 | M-22 | 4.5 | ||
THD-24 | M-24 | 4 | ||
THD-27 | M-27 | 3.5 | ||
THD-30 | M-30 | 53 | 11 | |
THD-33 | M-33 | 10 | ||
THD-36 | M-36 | 9.5 | ||
THD-39 | M-39 | 8.8 | ||
THD-42 | M-42 | 101.7 | 24 | |
THD-45 | M-45 | 22.5 | ||
THD-48 | M-48 | 21 | ||
THD-52 | M-52 | 19.5 | ||
THD-56 | M-56 | 142.73 | 40 | |
THD-60 | M-60 | 38 | ||
THD-64 | M-64 | 36 | ||
THD-68 | M-68 | 35 | ||
THD-72 | M-72 | 33 | ||
THD-76 | M-76 | 10 | 194.38 | 60 |
THD-80 | M-80 | 57 | ||
THD-85 | M-85 | 54 |