Milltronics TRL22/60

The Milltronics TRL22/60 is a gap-bed CNC lathe on solid box ways with 64.96 in (1,650 mm) of Z travel, a 4.13 in (105 mm) spindle bore and 620 lb-ft (841 Nm) of spindle torque. The figures describe a machine for long, heavy turning at an unhurried pace: rapids are 500 ipm (12.7 m/min) and the spindle range is 40 to 2,500 rpm.

Swing over the bed is 24.4 in (620 mm). The gap raises that to 30.3 in (770 mm) over a gap distance of 12.6 in (320 mm), which suits flanges and short, large-diameter parts held close to the headstock. Over the cross slide the swing is 12.2 in (310 mm), so shafts that run the length of the bed are held to that figure. X travel is 18.1 in (460 mm).

The A2-8 spindle is listed at 24/15 hp (17.9/11.2 kW). Its 620 lb-ft (841 Nm) is far above the 260 lb-ft (352 Nm) of the SL10-II, which has the same spindle nose, and the 4.13 in (105 mm) bore lets long bar or pipe pass through the headstock. At the other end, the tailstock has an MT5 quill 3.94 in (100 mm) in diameter with 6 in (152 mm) of travel.

An 8-station turret with bi-directional indexing holds 1 in (25 mm) shank tools and boring bars to 1.5 in (38 mm). Positioning accuracy is listed at ±0.00025 in (±0.006 mm) and repeatability at 0.0002 in (0.005 mm). The control is the Milltronics 9000-DGI CNC with a 15 in LCD colour touch screen.

The machine weighs 12,567 lb (5,700 kg), occupies 170 x 126 in (4,318 x 3,200 mm) of nominal operating space and stands 92.4 in (2,347 mm) high. Power is 18 kVA / 45 A at 208-240 V, 3-phase. No chuck size is given in the table, so settle the workholding in the quotation.