SW BA W02-22 & BA W02-22i

The SW BA W02-22 & BA W02-22i pairs two spindles with two work tables on SW's smallest linear-drive platform. SW prints both names in one column of the BA W02 table. The i marks integrated automation in SW's naming scheme, and the page for the series describes such machines as production cells delivered ready for connection.

Each spindle works in 200 mm (7.9 in) of X, 350 mm (13.8 in) of Y and 300 mm (11.8 in) of Z, with 250 mm (9.8 in) between the spindle centers. The second table costs some swing: the 4th-axis interference circle is Ø 425 x 630 mm. In return one table can be loaded while the other is being machined, which SW lists as loading and unloading in parallel to machining time.

There are two spindle choices. HSK-A40 gives 25,000 rpm, 18 kW and 17 Nm per spindle. HSK-E40 gives 36,000 rpm, 14 kW and 7 Nm. Pick the first for general small-part milling and drilling. The second is a finishing spindle for tools of a few millimetres.

Why two spindles on parts this small? SW's answer on the feature list is energy: 50% less energy used per part than a single-spindle machine. The practical answer is floor space, since two parts come off every cycle. The table says nothing about tool magazine size or rapid traverse, so those belong on the question list for SW.