Bolt space issues often need to be considered when using a hydraulic wrench or hydraulic bolt tensioner. Only by clarifying certain working condition parameters can the smooth progress of the project be ensured. This prevents the purchased hydraulic wrench/tensioner from being unable to tighten bolts due to space issues.

Now, TorcStark will introduce the space parameters that need to be considered when purchasing hydraulic wrenches and hydraulic tensioners.

Things to consider when using a hydraulic wrench

  1. You should know the working conditions of hydraulic wrench.
  2. Hexagon nut (octagonal nut)
  3. Inner hex bolts
  4. Castle nut

Hydraulic wrench working condition questionnaire

Bolt sizeMmm
A/FSmm
Distance between nutsAmm
Nut thicknessH1mm
Length of screw over nutH2mm
Total length of screwH3mm
Distance of screw from top barrierH4mm
Distance of nut center from cornerL1mm
Distance of nut center from side wallL2mm
Pretightening torqueTNm

Based on the pictures and tables above, the main purpose is to learn more about the distance from the bolt to its top, bottom, left, and right, to select a hydraulic wrench of appropriate size.

Things to consider when using hydraulic bolt tensioners

  1. You should know the working conditions of hydraulic tensioner.
  2. Screw extended nut length greater than 1times screw diameter.
  3. Round nut or hexagon nut.

Hydraulic tensioner working condition questionnaire

Bolt sizeMmm
Thread distancePmm
Round nut diametermm
A/F of hexagonal nutSmm
Nut thicknessH3mm
Hole height of round nutH2mm
Number of round nut holesZ
Hole diameter of round nutDmm
Washer diameterBmm
Washer thicknessH1mm
Distance between nutsAmm
Length of screw over nutH4mm
Total length of screwH5mm
Distance of screw from top barrierH6mm
Distance of nut center from cornerL1mm
Distance of nut center from side wallL2mm
Tensile forceFKN

According to the above pictures and tables, the main purpose is to learn more about the various parameters of the bolt itself and the distance to its top, bottom, left and right, so as to select a hydraulic bolt tensioner of appropriate size.

In the end

Space considerations are very important when using hydraulic wrenches/tensioners to tighten bolts. However, many users may not know these parameters and cannot provide specific data. For this problem, TorcStark provides professional technical support. You only need to provide corresponding working condition pictures or partial information, and we will recommend a suitable hydraulic wrench/tensioner to you.