Our key areas of work are vessel and plant construction, welded constructions and sheet metalworking. Our strengths lie in the high level of quality and workmanship quality of our sheet metal and welding work, as well as surface finishing. We mainly produce to customer specifications, either as one-off production or small series.

We produce components for pharmaceutical and biotechnology, food technology, the chemical industry, the semiconductor industry, for research facilities, for packaging machine manufacturers and for mechanical engineering companies. We produce containers such as agitator tanks and pressure vessels, e.g. with requirements to ATEX or WHG §19.1 standards. We also do sheet metalworking and produce welded constructions, hoppers, tanks, welded racks & frames and folded sheet metal components.

We generally process stainless steels 1.4301, 1.4404 and 1.4435. We also process, e.g. 1.4571, 1.4539 (254 SMO) as well as aluminium, titanium and nickel-based alloys such as Hastelloy to order. Proper processing of the materials is the norm at Raff + Grund.

This means perfect quality welds or, e.g. surfaces with a ground, bright polished or electroplated finish with defined roughnesses up to Ra<=0.2μm maximum.