Several years ago Duro Dyne redesigned their popular 5 ft Manual Cut Liner Sizer as it became evident that closed cell Elastomeric Liner and other non Fiberglass products like Ductmate’s Polyarmor were materials that their LS couldn’t cut. Duro Dyne’s redesign was centered around two changes: the addition of a grooved bar and a gear to spin the blade at a continuous rotation.  By getting the Circular Blades to Spin while cutting, the power is greatly increased similar in the way a Circular Saw might cut with more than power than a Pizza Cutter. The Cross Cut Blade and Slitter Blade are both mechanically gear driven to spin while cutting.  Another benefit of this increased cutting power is cleaner cuts on 1-1/2” and 2” Fiberglass Duct Liner than shops have been used to with the LS model. 

Cross Cutting means using the handle (A) and pulling that circular blade (B) across the Liner. The Handle rotates 360 degrees to move out of the way when not in use.  The Slitting assembly is comprised of the Handle (C) and Blade (D) that moves continuously because of the addition of Gear Driven bar (E) [vs a flat bar on the LS Model] allows to cut materials like Polyarmor (F) that the LS cannot. The rotation of the Crank handle (G) allows the Liner to be fed quickly thru the machine.  The Quick Release Lever (H) is attached to the upper roller to apply pressure so that the Liner Feeds properly. 

 

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