A cutting head for cutting spread sheet material and using a vertically reciprocating knife achieves a light weight, low cost, low maintenance and high stroking speed design through a unique combination and {TAIL ~ arrangement} of parts wherein the knife drive motor is isolated from rotation with the knife about {HEAD ~ the theta axis} without using a conventional swivel mechanism 
A cutting head for cutting spread sheet material and using a vertically reciprocating knife achieves a light weight , low cost , low maintenance and high stroking speed design through a unique combination and { TAIL ~ arrangement } of parts wherein the knife drive motor is isolated from rotation with the knife about { HEAD ~ the theta axis } without using a conventional swivel mechanism
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