ENGINEERING DATUM #84

(Left) The setworks saw unit shown allows end     

trim of any amount (+/- .006”) up to a 12” movement.     

By using lift saw units spaced on 12” centers this     

allows any board trim length.    

               Zero Setworks Saw

 By using moveable fences and other option on the trimmer infeed (above) the machine can also recover the most valuable lumber from each boards. Each saw unit (including the zero saw setworks saw) is moveable and can be positioned as desired from the zero end to the far end. 

 Each drop saw unit uses a shock eliminating toggle lift (right) enabling speeds from 120 LPM up to 200 LPM. These units use standard “off the shelf” cylinders and arbor motors.

There are many of these machines in use in today modern lumber mills. The oldest, which only had

a shifting zero saw,  was constructed in 1984 at Boise Cascade’s Elgin, Oregon. stud mill.

 After installing a 24ft Trimmer with a shifting zero saw and running for years, the owner of Girard Wood Products in Puyallup, Washington was quoted as saying "If he did anything different, he would have not bought the extra cylinders that other trimmer owners told him to buy".

 History, as most mill managers know, has always been that Trimmers arbor cylinders go though a lot of shock actuating the arbor up and down. As we are experienced once at a mill in Beaver, Washington that had a competitors Trimmer, they went through many premature cylinder failures that ran into the tens of thousands of dollars.

With our Toggle Link system, there is next to no shock in the cylinders and to this day Girard hasn't replaced a single arbor cylinder due to shock loads.