Interchangeable Hydraulic Bolt Tensioner  BHP series interchangeable hydraulic bolt tensioner By changing tensioner head,Website:http://www.dudemachinery.com, it can fit for bolts of various specifications.  Economical, high efficiency, light weight Application range: to tighten or loosen bolts of big machines in ship building plants, steel plants, fire power plants, wind power plants and nuclear power plants.  We design it as per the particular space on customer's machine.