The compact, high-precision Quicktech S-32 ATM 9-axis twin spindle mill/turn center from Absolute Machine Tools Inc. combines integral-motor main- and sub-spindles with a 190° B-axis milling head and a fast automatic toolchanger to maximize output of small, complex parts.
The S-32 ATM has 9 axes, including two turning spindles and a 190° B-axis milling spindle, serviced by a 24-tool arm-type automatic changer. Six fixed gang-type I.D. turning tools at sub-spindle result in a total capacity of 30 tools.
Both the main spindle and sub-spindle feature 6,000rpm, 5-hp high-torque integral motors, and 42mm collet chucks (or 5" 3-jaw hydraulic chucks) with capacity for 30mm bar stock. The spindles feature a continuous C-axis with a braking system and are fully synchronized for fast and accurate part transfer.
The 10,000 rpm, 3-hp, HSK40-T B-axis milling spindle services turning main- and sub-spindles, and has a working range of 190°. The B-axis is locked in position for rigid turning operations. The 24-tool arm-type toolchanger, with an HSK-40T quick-change tooling system, produces tool change times of 1.3 seconds. The sub-spindle moves in the X-, Y-, and Z-axes, and in the X-axis, can move above and below the centerline to clear the B-axis and enable full-tilting capabilities. Six gang-type turning tools at the sub-spindle allow simultaneous turning and milling operations.
The S-32 ATM is built for precision and durability. The main and sub-spindles employ P4 high-precision bearings for stability and heavy cutting. Large 35mm Hiwin roller-type linear guideways in linear axes provide stability and permit heavier machining. The 32mm ballscrews are double anchored, pre-tensioned, and directly coupled to the machine’s servomotors.