Direct-drive axes earn their cost where backlash, wear or transmission compliance is the limiting error. These are the machines where that is usually true.
Rotary stages on optical and 3C inspection machines, where positioning error directly becomes measurement error.
Typical series: ZRDDR-144140
Direct-drive workheads and rotary tables on precision grinders, removing belt and worm-drive error.
Typical series: ZRDDR-180172 · ZRDDR-370200
Zero-backlash rotary axes for hobbing and gear cutting, where backlash shows up as tooth-index error.
Typical series: ZRDDR-180172
High-acceleration rotary axes for die-cutting and stamping stations.
Quiet, low-vibration direct-drive rotation for architectural revolving doors.
Direct-drive rollers and diverter axes for high-throughput handling lines.
Lightweight rotary heads and linear axes for SMT and component placement.
Typical series: ZRDDR-11085 · ZRDDR-16045
Rotary indexing for taping and film-handling stations.
Fine rotary alignment in optical, display and semiconductor tooling.
Trunnion and C-axis drives on multi-axis machining centres.
Typical series: ZRDDR-180172 · ZRDDR-370200
Smooth, low-cogging rotation for laser welding and cutting heads.
Purpose-built axes for special machines, where no catalogue motor fits the envelope.
If yes, a frameless motor gives the most stiffness per unit volume. If no, a housed or modular motor saves you designing a bearing set.
If a gearbox or belt sits between motor and load, direct drive removes that term from the error budget entirely.
A pancake disc motor buys torque in a short axial envelope; a conventional radial motor buys it in a narrow radial one.
Tell us the machine, the accuracy target and the environment. We will tell you which family fits and which does not.
Describe the applicationTwelve categories is not a closed list. Send the machine description.
