Agitator Fabrication Photo 1 | 2 | 3 | 4 | 5 | 6 Tub Fabrication Interior Views Safety Grates Lids / Backrests Packing Glands Sumitomo Motors / VFD's Machine Finish Paddle Blenders Custom Machines Stock Blenders		Next, the inner ribbons are attached. In food and pharmaceutical grade machines, these weld joints are ground smooth. This is a very robust design.