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3/26/2014 | 1 MINUTE READ

Vertical Turning Centers Form Modular System

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Emco Maier offers right- and left-hand versions of its VT 160 and VT 250 Duo vertical pick-up machines to enable complete machining solutions when they are paired with oval, meander or crossover-meander conveyor options.

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Emco Maier offers right- and left-hand versions of its VT 160 and VT 250 Duo vertical pick-up machines to enable complete machining solutions when they are paired with oval, meander or crossover-meander conveyor options. The machines are capable of turning workpieces ranging to 250 mm in diameter and 150 mm in height, and weighing as much as 8 kg. Thirty workpieces can be loaded with the oval conveyor or 50 with the meander conveyor, while the integration of a crossover enables the use of different pallets or different workpieces.

The VT 160 provides 21 kW of power, speeds ranging to 7,000 rpm and 150 Nm of torque, while the VT 250 provides 29 kW of power, speeds ranging to 5,000 rpm and 280 Nm of torque. The digitally controlled synchronous motor on the main spindle can handle heavy-duty machining with maximum outputs of 21 kW on the VT 160 and 29 kW on the VT 250. Driven 40-mm-diameter ballscrews with lash and maintenance-free couplings offer speeds ranging to 60 m/min. X-, Y- and Z-axis travels measure 620 × ±65 × 310 mm in the VT 160 and 520 × ±90 × 310 mm in the VT 250. The Z axis features mechanical weight compensation to prevent dropping in the case of a power failure.

Steel-welded construction and thermo-symmetrical headstock help to promote rigidity and damp vibration. Large distances between the guideways of the carriage system and the size 45 linear carriage are also said to promote rigidity. The machines’ short chip-to-chip times are said to enable high quality and efficiency. The turning centers can be equipped with options such as a moving turret axis, driven tools, a multi-function platen for fixed or driven tools, a linear measuring system, process monitoring and electric evaluation.

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