Colchester Multiturn 2000

The Colchester Multiturn 2000 is a 400 mm (15.7 in) swing flat-bed CNC lathe offered with 1,200 / 1,850 mm (47.2 / 72.8 in) between centres. It has a 10 in (254 mm) chuck on a D1-6 camlock nose, a 55 mm (2.2 in) spindle bore and a 7 kW (9.4 hp) spindle with a range of 1 - 2,700 rpm.

Length is the point of this size. At 1,850 mm (72.8 in) the longer bed takes shafts nearly three times as long as the Multiturn 1000 can hold, on a machine that is only one step larger in swing. For pump shafts, spindles, lead screws and similar slender parts that is the dimension that counts, and the optional travelling and stationary steady rests are there to support them.

One detail separates this page from its neighbours. The spindle bore is given as a single 55 mm (2.2 in). The driven-tool Multiturn 2000XC lists 55 / 80 mm (2.2 / 3.1 in), so if a large through-bore matters, raise it with Colchester before assuming the 2-axis machine offers one.

Swing over the cross slide is 246 mm (9.7 in) and the gap gives 585 mm (23.0 in). Programming is through the Siemens 828D and ShopTurn on a 10.4 in colour screen. With 7 kW (9.4 hp) available, depth of cut on large diameters has to be planned with some care, but for finishing long shafts to size, and for threading, power is rarely the limit. Hardened and ground bedways in cast iron are part of Colchester's description of the range.