sal the blacksmith

If you've checked your blocks & they're coming down flat then I'd have to say check for slack or wear in your tup as its probably sending the job slightly ascew as the job is squeezed between the blocks. You might need to get a precision engineer involved with this one - install a sleeve in the cylinder - sounds expensive but a necessary overhaul if you want to spend less time correcting forgings.

3cwt Massey Clear space pneumatic hammer - poetry in motion.

G'day everyone , I'm new here so this is my first post . I would have to agree with Jim Cokes' point which is rather clever or if you don't want to go underground with the noise dampening unit then make sure the noise reducing unit is made of suitable noise dampening materials to break down sound vibration just like a gun silencer in design & materials to also absorb sound waves.