Mic & mac engineering works offers programmable cam controllers. They perform the duty of a number of single dial timers in cascade, with consequent saving in space and cost. Inserting or removing the cam segments against direct reading scales can achieve alteration to the required timed intervals. . The mechanism is driven by shaft of the machine or to provide the opening and closing of number of electrical circuits within the range of the instruments. The preset sequence can be repeated any number of times by the microswitches with respect to one another. Cam controllers frequently operate in combination with delay timers and other control switches. These come in 3, 5, 7, 10, 12, 15, 20, 30, 40 and 50 ways. These are useful in packing machines, feeding devices, foodstuff industries, steel and rolling mills, yam and fibre industries, and special purpose machines.
