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THD: Double cylinder

Characteristics

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.

Technical sheet

Metric
 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

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