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HTN Standard Range

The Hi-Force HTN range of imperial top collar hydraulic nuts is specifically designed and manufactured for applications where regular, periodic opening of the joint, for inspection and maintenance purposes is required. Unlike conventional hydraulic bolt tensioners, Hi-Force HTN series hydraulic nuts are designed to permanently replace standard hexagon nuts, on one side of the bolted joint. Initially the bolt tension or elongation is applied hydraulically and once achieved, it is permanently retained via the integral mechanical load retaining collar.

Standard range models are available for imperial bolt sizes from 1” to 4”, with other sizes available to special order. All models are 21750 psi maximum working pressure and supplied with quick connect hydraulic couplings, compatible for use with Hi-Force air or manually operated hydraulic bolt tensioner pumps and hoses.

  • Capacities from 22 to 215 tons

  • Bolt sizes from 1" to 4" diameter

  • Working pressure 21750 psi

  • Single acting design with integral load holding lock nut

  • High grade alloy steel construction

  • Nitrocarburized piston

  • Visible maximum piston stroke indicator

  • Dual quick connect couplings for easy connection

  • Customized and special design tensioners are available on request


HTN Standard Bolt Tensioner  Specifications      

Note: Tommy bars are not included. Hi-Force recommends one tommy bar for every four tensioners.  

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