Citizen has extended its modular build concept with its top international selling, mid-range Cincom L-Series CNC sliding head turn-mill centre range by introducing three variants of its L20. Each machine has selectable modules to suit user functions on workpieces from up to 20 mm or 25 mm bar size.
The new L20 range is available with a standard 5-axis Type-VIII with 37 tool positions, a mid-specification Type-X has 44 tool positions plus additional flexibility created from a -Y2 axis for the back spindle. The high-end 7-axis Type-XII, has in addition a fully programmable swivelling 135 deg B-axis.
The main spindle is powered by a 3.7 kW, 10,000 revs/min motor and the back spindle has a 1.5 kW, 8,000 revs/min drive. The driven tools on the gang buy cymbalta in usa toolpost are 1 kW, 6,000 revs/min while the opposite and back toolpost both have 0.75 kW, 7,500 revs/min drives. The three driven tools in the swivelling +90 and -45 deg B-axis are powered by a 1 kW, 8,000 revs/min motor. There are also included four double-ended spindles for front and back working. Rapid travel rates are fast at 32 m/min in each axis and 8 m/min for Y.
There are two types of gang toolpost, five versions of opposite toolpost and three types of back toolpost and in addition to a back toolpost, totally independent opposite and gang toolposts enable overlapping tandem tool motion. A guidebush can be removed or replaced within 30 minutes and reduces the effect of long bar remnants