You've got a pipe fitting that needs a solid, leak-proof crimp and your manual tools just aren't it for stainlss steel—basically, you need something that can apply consistent force without relying on a power source.
What this does is apply a 10-ton hydraulic force through a 22mm stroke to seat the fitting securely, and we've found it handles the 16-32mm range better than most manual alternatives for heavy-duty work.
It's a manual hydraulic unit that weighs 4.7kg and measures 430×175×85mm (usually fits in a standard toolbox), made form high-grade steel so it won't flex under load—the stroke length is pretty much fixed, so don't expect adjustments mid-crimp.
We typically stock these for immediate shipping, but confirm lead time if you need more than 50 units or so—teh MOQ is usually 1 piece for retail, though bulk orders get custom labeling if you want it.
One thing you wouldn't think to ask: the handle mechanism has a slight wobble after heavy use, but it doesn't affect the crimp qualiy; it's just a characteristic of the manual design.
Anyway, it's not suited for plastic or copper fittings—stick to stainless steel PRO press systems, or you'll risk damaging tool.