Nexturn SA38PII

The Nexturn SA38PII puts 38 mm (1.5 in) bar through a machine no bigger than the SA20PII. It is the largest bar size in the P line, a seven-axis Swiss-type automatic lathe with 250 mm (9.8 in) of turning length, 8,000 rpm spindles and 19 tools.

That shared frame size explains most of the table. Length, width and height are 2,100 × 1,165 × 1,660 mm (82.7 × 45.9 × 65.4 in), identical to the SA20PII, and only the weight moves, to 3,600 kg (7,937 lb). The motors are those of the SA26PII and SA32PII: 5.5 / 7.5 kW (7.4 / 10.1 hp) on the main spindle and 2.2 / 3.7 kW (3.0 / 5.0 hp) on the built-in sub spindle. Nothing is added for the bigger bar, so on a full 38 mm cut the SA38PII has less power in hand for each millimetre of diameter than the SA26PII does.

Tool count goes the other way from bar size. The SA38PII lists 19 tools, the fewest in the P and PY table, because the front-end face group for the sub spindle shrinks to a single fixed tool. The rest follows the PII pattern: five OD tools on □16 × 120 mm (0.6 × 4.7 in) shanks, four cross live tools, five Y-axis ID tools and four back-end tools.

Drilling capacity does not grow with the bar either. The main spindle, the cross unit and the back-end station are all listed at 12 mm (0.5 in) and M10, and the largest cross disc mill is 40 mm (1.6 in), barely over the bar diameter. Deep or large bores in 38 mm stock will be the limiting operation on this machine.