tk 441/3 - 4-axis cnc vertical machining center equipped with an electric spindle that can rotate around the c axis, this allows for machining on three sides of a profile with just one clamping operation. this machining c......tk 441/3 - 4-axis cnc vertical machining center equipped with an electric spindle that can rotate around the c axis, this allows for machining on three sides of a profile with just one clamping operation. this machining center is designed for drilling and conventional milling processes and also for copy-milling operations on aluminum extruded profiles and other materials, including steel profiles up to 5 mm thick, steel reinforced pvc, composite materials and various other plastics or wood. the tk 441/3 model can be implemented in every industry and its flexibility and robustness allow to efficiently machine components that require high performances, such as aluminum profiles produced by the largest extrusion press all over the world. standard versions are available in 3 machining lengths: 3500, 6700 and 8400 mm. upon request the machining center can be manufactured in different lengths in order to meet the special needs of each customer.