Torque wrenches are the tool of choice for pretensioning or also loosening Multi-Jackbolt Pretensioners.
These simple hand tools allow effortless, controlled and precise generation of the desired tightening torque on the Jackbolts and thus the achievement of the desired preload force.
We will be happy to supply you with the torque wrenches that matches your MJPs or advise you on the selection and procurement of the appropriate tool. Contact us!
Note: Even when using impact wrenches, the last tightening round (» see Manual, paragraph 1.4 Pretensioning, fifth) must always be carried out by hand with a torque wrench!