Following the success of two new circular saw blade grinding machines launched by Vollmer last year, the saw blade sharpening expert is now presenting the new Loroch Twin 860. This space-saving concept features a compact 2000 x 1250 x 1980mm footprint that introduces two different grinding processes in a single machine tool. The end user therefore gains from a machine that can process both TCT saw blades for the wood, sawmill and metal-cutting industries, as well as HSS saw blades primarily used in metal cutting.

With the introduction of a fifth axis, it is possible to process a vast selection of TCT blades in addition to common metal-cutting circular saw blades. As with all Loroch machines, the new Twin 860 grinds with the saw blade rotating. In each case, the grinding process consists of a precise, controlled movement of the grinding head and rotation of the saw blade with both axes controlled simultaneously in complete synchronicity.

Users can sharpen and re-cut HSS circular saw blades from 60 to 860mm on the Twin 860, while automated chamfering is possible from diameters of 75mm and above. With HSS saws, the rake and clearance angles are freely selectable and the grinding process also permits the processing of solid-carbide saw blades, friction saws, and TK or TA saw blades.

For the sharpening of TCT saw blades from 145 to 700mm diameter, the Twin 860 has a secondary grinding process whereby the tooth that requires grinding will remain in a stationary position with the process performed exclusively by the grinding head. The ultra-precise centre drive, which intuitively identifies any pitch differences in the saw blade and automatically processes any irregular pitch patterns in the saw blades, undertakesthe feeding of each tooth.
For further information www.vollmer-group.com/en-uk