Here is a typical layout of an anodising line including the anodising tank for a professional operation
Anodising Tank Controls/ layout 
Anodising Tank at rest top view 
Anodising Tank with sample 
Titanium Anodising Rack 
Closeup of Rack 
Placement of anodising Rack in Tank 
Placement of anodising sample in rack in tank 
Note the lead cathode evenly spaced along the tank 
Close up of Rack in Anodising Tank 
Sealing Tank 
Surface preparation
Polished / Sandblasted/ Brushed
Polished / Sandblasted/ Brushed