Pete wrote:but as every piece of equipment it can be pressed into service if I was to use it for compressing wheelsets together I'd get some heavy gauge steel sheet , have it cut down to the right size to cover the faces then get a welder to tack them on for you with them clamped together to give a nicely square set a local welder or engineering shop would probably ask for enough for a couple of pints done as a foreigner !!
We are making very heavy weather of pressing a few wheels on. The vice is fine as is, as noted a number of times above all you need is some bits of MDF/ply they are nice and flat and won't damage your wheels. You'll **** up a perfectly good vice if you go tacking bits of mild steel to it
I bet you wished you'd never asked
depends if it is being used solely for one purpose or if pressing into other uses I'm spoiled as I have an engineering workshop at my disposal as well as my own welding equipment , sometimes a little adapting to suit at small costs saves many hours of swearing at a later date !!