For machining parts from bar up to 20 mm in diameter (optionally 25 mm), a third generation of the Cincom L20-LFV series of sliding-head lathes with a considerably uprated specification has been launched by Citizen Machinery UK. Now offered in five variants, VIII, IX, X, XII and XIIB5, the L20-LFV is a best-selling model with platen tooling as well as front and rear tool posts. All stations feature driven and static positions on the top three models, which also have additional Y-axis movement of the sub-spindle.

Simultaneous five-axis control for performing complex machining cycles is supported on the top two models, one of which has a B-axis tool post with optional ATC (automatic tool change) for tools up to 30 mm in diameter. Chip-to-chip time is 4 seconds. Cutters are driven by a 2.2 kW motor at up to 12,000 rpm, so even small diameter mills are capable of productive metal removal rates.

The Japanese manufacturer says it was the first to offer B-axis ATC on a sliding-head lathe to extend the machine’s versatility when executing angled cross-working or end-facing operations. The magazine accommodates 12 tools, while a 13th is fixed in the upper position on the live tool unit.

Another feature contributing to the lathe’s versatility is the ability to switch over quickly between Swiss-type operation and non-guide bush turning for more economical production of shorter components. This mode results in less bar wastage due to the shorter remnants.

The machine incorporates Citizen Machinery’s Eco II suite of energy-saving features, designed to optimise power consumption, reduce compressed air usage, minimise CO2 emissions and promote environmentally friendly manufacturing practices.

More information www.citizenmachinery.co.uk