Manufacturers' news

Horizontal Shape Saw from USNR / Söderhamn Eriksson !

6 June 2017

Our advanced Horizontal Shape Sawing system solves many problems commonly associated with traditional curve sawing, enabling mills to achieve maximum recovery at high feed speeds. This highly advanced system is able to accurately and efficiently produce the complex curve sawing solutions from today’s optimizers, resulting in consistently accurate lumber sizing.

The Horizontal Shape Saw is the next generation of curve sawing technology that solves many of the problems associated with traditional curve sawing machines including issues with accuracy, recovery, overfeeding, and control.

This highly advanced system is able to accurately and efficiently produce the complex curve sawing solutions from today’s optimizers. The result is consistently accurate lumber sizing. 

Designed to accommodate cants up to 30" / 760mm wide, the HSS can achieve a depth of cut up to 12” / 300mm. Using a chipper and gang combination, along with sophisticated control systems to position and move the chip heads and the saws, the system automatically achieves maximum recovery at high feed rates.

The technology is called “virtual pivot” because it doesn’t have a single pivot point. The pivot point is continuously adjustable, which allows for ideal handling of multiple thicknesses. Depending on the thickness of a cant, the optimal point of rotation varies.

With virtual pivot technology, the sawbox and motors are mounted on a simple base, and the whole mass is on air bearings. Three linear positioners precisely locate and orient the sawbox assembly anywhere in space. Other shape saw manufacturers typically separate the pivoting and translating functionality into dedicated mechanisms. But those structures require pins, bearings, cam followers and tracks to function, which require heavy maintenance and attention to maintain sawing accuracy.

Source: USNR / Söderhamn Eriksson

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