SPMs or Special Purpose Machines offer tremendous scope for high volume production at low investment and at low cost of production when compared to CNC machines. SPM, Special Purpose Machines is a high productivity machine, with specially designed tooling and fixture, dedicated for mass producing the same component day in and day out. A judicious combination of limit switches, sensors, logic controls, automatic job clamping etc is the essence of a SPM. A well conceived Special Purpose Machine finds ways and means to utilize the man and machine to the optimum.