A kit of back face punch centring rollerways and good face installation platforms is an excellent choice for handling large formats.
The two rollerways, which centre on the cavities, are easy to position and have the option of having two centring devices, one for aligning the back face punch and one for the good face punch centring platform. The back face punch is handled by moving it up to the mould, at which point the steel ball handling surface is used to position the punch at the centre of the cavity and the cylinder located in the block raises the back face punch so that the rollerway can be moved away.
The good face punches are installed with the rollerways by positioning them in the second centring unit, where the platform has access. Once the punch is positioned on the centring platform, it cannot move because it is constrained on four sides.
Once the punch is aligned with the centre of the cavity, the upper cavity plate lowers, the spring jacks that hold it in place retract and the punch is placed in the cavity and magnetically retained to the upper block.