The CCL ‘MG’ Stressing Jacks used for the CCL ‘XM’ System have the following features:

• Automatic gripping of the wedges on the strands.

• The simultaneous stressing of all the strands of the tendon.

• Support of the Jack on the FTU, by means of a temporary Bearing Ring.

• The simultaneous hydraulic lock-off of all the wedges in the AH.

• Partial stressing of the tendons with later recovery up to the final values of the prestressing force.

• The stressing by successive loadings of the Jack when the final extension is greater than the full extension of the CCL Jack.
  

Various dimensions and characteristics of CCL ‘MG’ Stressing Jacks are available from CCL and are given in The MG Jack Stressing Manual available from the download centre in the Members Area.

Interchangable Jack Innards are available to suit the various size of anchorage and type of jack.

Table 2k: Jacks for Multistrand Anchorages