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  • FTR-Series Foundation Bolt Tensioners provide fast, accurate and easy tightening of external or internal-ring wind tower foundations.
  • Standard models are available for 75, 150 ksi and metric style Williams, Dyson and Macalloy bar types.
  • Long-stroke options accelerate process with single-pull tensioning
Unit of Measure

Bar Grade

N/A 75 ksi

Bolt Diameter

N/A 1.38 in 35 mm

Bar Size Designation

N/A #10

Nut A/F

N/A 2.00 inches

Maximum Pressure

N/A 17,400 psi

Hydraulic Pressure Area

N/A 4.86 in²

Load Capacity

N/A 42.3 tons


N/A 0.39 inches

Dimension A

N/A 3.90 inches

Dimension B

N/A 3.48 inches

Dimension C

N/A 1.74 inches

Dimension D

N/A 6.42 inches


N/A 12.9 lbs.

Minimum Bolt Protrusion

N/A 7.87 inches