Precision transmissions of the ZF Duoplan model range cover all standard performance, torque and motor requirements for industrial machine drives. This means that the performance range of machine tools can be fully used with optimal energy efficiency.
Today's machine tools must be highly versatile in order to be able to cope with a wide variety of materials. It is precisely for this reason that ZF developed the two-speed manual transmissions of the Duoplan series. The ZF Duoplan transmission is primarily used in machine tools and test benches and for applications that require a high torque. With its variety of installation positions, the transmission can be used, for example, in lathes (horizontal B3/B5) or machining centers (vertical V1/V3).
In addition, the ZF Duoplan transmission is used in various systems in which increased torques or reduced speeds are required. High cutting speeds are needed for soft materials while greater cutting forces are required for hard materials. This level of flexibility can be obtained through the use of a shiftable transmission. On the one hand, the high speeds of the drive motor in the direct gear ratio (1:1) are maintained and, on the other, the motor's drive torque is multiplied via the transmission (e.g. i = 4.00) and the speed is correspondingly reduced.
Other features of the two-speed manual transmission include increased compactness thanks to the planetary design, low running noise and direct mounting on all kinds of main spindle motors. Concentricity and center distance changes are compensated for by the floating sun gear, making the planetary gearset much less sensitive to tolerances. Among the other benefits are low circumferential backlash, high efficiency and easy assembly.
The ZF Duoplan model range offers more than ten different transmission variants for various applications and installation positions.
These transmissions can drive motors with axle heights from 100 to 280 mm; the range of transmittable rated powers is between 19 and 120 kW and that of the rated drive torques between 120 and 2,100 Nm. This comprehensive range of transmissions enables machine tool manufacturers and producers to increase their efficiency and profitability even further.
This is because an optimally harmonized motor-transmission system also reduces power consumption.