The unique design of our Linear Motion Quad Roll log turner solves most of problems seen in the traditional turners currently available.  All other log turners on the market have pivoting rolls that require a large swing radius.  The large distance caused by the swing radius and the placement of the head sprocket feeding the turner make it difficult to deal with short and/or irregular shaped logs.  The radial movement of the feed rolls complicate the controls of the roll closing cylinders making it tough to know exactly where the rolls are on a given log.  Additionally, each pivot frame has two rolls in a bogie configuration and each time the rolls move there is a tremendous amount of mass that has to be moved for the next log, which leads to maintenance issues.

Our turner design is very simple. All movement is totally linear and moving components ride on linear bearings and rails.  There is lower base frame that carries two roll modules.  Each pair of rolls moves in and out in a linear motion, so we know exactly where they are in relation to the centerline.  No bogies here, the rolls are mounted separately but move together.  Each individual roll is actuated using a pneumatic cylinder that acts as a cushion allowing the rolls to be always extended and react independently to irregularities of the log surface.  Each pair of rolls also move up and down together to accomplish the turning.