Drum lining is a real value. Most manufacturers of polyurethane drum liners will be lining up to 750,000 cubic yards in proportion. In addition to long wear life, drum bushing also reduces the build-up of rigid concrete. Stacking on steel drums requires routine cleaning. Polyurethane liner buckets usually only need to be cleaned once a week. The lining also has a low coefficient of friction – this reduces the amperage of the load blender.
All in all, if you are using polyurethane roller liner, you should see reduced maintenance and energy costs.