Computer numerical control has arrived for black oxide finishing using the Tru Temp low temperature, non-polluting finishing process. This new line utilizes an integrated programmable hoist and tank line to automatically process iron and steel components with a black oxide finish. Designed to operate as a self controlled unit that eliminates the labor costs required with manual hoist lines, the company say its CNC system is highly repeatable, eliminates process guesswork and has large output capabilities. A standard, 110-gallon tank line system has an output capacity of 4-6000 pounds per 8 hour shift. The system can be sized and configured to accommodate any volume of work or production circumstances.